diff options
Diffstat (limited to 'linux/drivers/media/video')
| -rw-r--r-- | linux/drivers/media/video/Kconfig | 2 | ||||
| -rw-r--r-- | linux/drivers/media/video/Makefile | 2 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/Kconfig | 9 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/Makefile | 5 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/saa7146_core.c | 601 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/saa7146_fops.c | 595 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/saa7146_hlp.c | 1045 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/saa7146_i2c.c | 433 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/saa7146_vbi.c | 511 | ||||
| -rw-r--r-- | linux/drivers/media/video/saa7146/saa7146_video.c | 1509 |
10 files changed, 0 insertions, 4712 deletions
diff --git a/linux/drivers/media/video/Kconfig b/linux/drivers/media/video/Kconfig index 98d3bc1f6..98ad43799 100644 --- a/linux/drivers/media/video/Kconfig +++ b/linux/drivers/media/video/Kconfig @@ -686,8 +686,6 @@ config VIDEO_MEYE source "drivers/media/video/saa7134/Kconfig" -source "drivers/media/video/saa7146/Kconfig" - config VIDEO_MXB tristate "Siemens-Nixdorf 'Multimedia eXtension Board'" depends on PCI && VIDEO_V4L1 && I2C diff --git a/linux/drivers/media/video/Makefile b/linux/drivers/media/video/Makefile index 55c30b507..29139b53d 100644 --- a/linux/drivers/media/video/Makefile +++ b/linux/drivers/media/video/Makefile @@ -137,8 +137,6 @@ obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o obj-$(CONFIG_VIDEO_AU0828) += au0828/ -obj-$(CONFIG_VIDEO_SAA7146) += saa7146/ - EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core EXTRA_CFLAGS += -Idrivers/media/dvb/frontends EXTRA_CFLAGS += -Idrivers/media/common/tuners diff --git a/linux/drivers/media/video/saa7146/Kconfig b/linux/drivers/media/video/saa7146/Kconfig deleted file mode 100644 index 769c6f814..000000000 --- a/linux/drivers/media/video/saa7146/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -config VIDEO_SAA7146 - tristate - depends on I2C && PCI - -config VIDEO_SAA7146_VV - tristate - depends on VIDEO_V4L2 - select VIDEOBUF_DMA_SG - select VIDEO_SAA7146 diff --git a/linux/drivers/media/video/saa7146/Makefile b/linux/drivers/media/video/saa7146/Makefile deleted file mode 100644 index 3219b00a8..000000000 --- a/linux/drivers/media/video/saa7146/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -saa7146-objs := saa7146_i2c.o saa7146_core.o -saa7146_vv-objs := saa7146_fops.o saa7146_video.o saa7146_hlp.o saa7146_vbi.o - -obj-$(CONFIG_VIDEO_SAA7146) += saa7146.o -obj-$(CONFIG_VIDEO_SAA7146_VV) += saa7146_vv.o diff --git a/linux/drivers/media/video/saa7146/saa7146_core.c b/linux/drivers/media/video/saa7146/saa7146_core.c deleted file mode 100644 index 973989dd4..000000000 --- a/linux/drivers/media/video/saa7146/saa7146_core.c +++ /dev/null @@ -1,601 +0,0 @@ -/* - saa7146.o - driver for generic saa7146-based hardware - - Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include <media/saa7146.h> - -LIST_HEAD(saa7146_devices); -DEFINE_MUTEX(saa7146_devices_lock); - -static int saa7146_num; - -unsigned int saa7146_debug; - -module_param(saa7146_debug, uint, 0644); -MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)"); - -#if 0 /* keep */ -static void dump_registers(struct saa7146_dev* dev) -{ - int i = 0; - - INFO((" @ %li jiffies:\n",jiffies)); - for(i = 0; i <= 0x148; i+=4) { - printk("0x%03x: 0x%08x\n",i,saa7146_read(dev,i)); - } -} -#endif - -/**************************************************************************** - * gpio and debi helper functions - ****************************************************************************/ - -void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data) -{ - u32 value = 0; - - BUG_ON(port > 3); - - value = saa7146_read(dev, GPIO_CTRL); - value &= ~(0xff << (8*port)); - value |= (data << (8*port)); - saa7146_write(dev, GPIO_CTRL, value); -} - -/* This DEBI code is based on the saa7146 Stradis driver by Nathan Laredo */ -static inline int saa7146_wait_for_debi_done_sleep(struct saa7146_dev *dev, - unsigned long us1, unsigned long us2) -{ - unsigned long timeout; - int err; - - /* wait for registers to be programmed */ - timeout = jiffies + usecs_to_jiffies(us1); - while (1) { - err = time_after(jiffies, timeout); - if (saa7146_read(dev, MC2) & 2) - break; - if (err) { - printk(KERN_ERR "%s: %s timed out while waiting for " - "registers getting programmed\n", - dev->name, __func__); - return -ETIMEDOUT; - } - msleep(1); - } - - /* wait for transfer to complete */ - timeout = jiffies + usecs_to_jiffies(us2); - while (1) { - err = time_after(jiffies, timeout); - if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S)) - break; - saa7146_read(dev, MC2); - if (err) { - DEB_S(("%s: %s timed out while waiting for transfer " - "completion\n", dev->name, __func__)); - return -ETIMEDOUT; - } - msleep(1); - } - - return 0; -} - -static inline int saa7146_wait_for_debi_done_busyloop(struct saa7146_dev *dev, - unsigned long us1, unsigned long us2) -{ - unsigned long loops; - - /* wait for registers to be programmed */ - loops = us1; - while (1) { - if (saa7146_read(dev, MC2) & 2) - break; - if (!loops--) { - printk(KERN_ERR "%s: %s timed out while waiting for " - "registers getting programmed\n", - dev->name, __func__); - return -ETIMEDOUT; - } - udelay(1); - } - - /* wait for transfer to complete */ - loops = us2 / 5; - while (1) { - if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S)) - break; - saa7146_read(dev, MC2); - if (!loops--) { - DEB_S(("%s: %s timed out while waiting for transfer " - "completion\n", dev->name, __func__)); - return -ETIMEDOUT; - } - udelay(5); - } - - return 0; -} - -int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop) -{ - if (nobusyloop) - return saa7146_wait_for_debi_done_sleep(dev, 50000, 250000); - else - return saa7146_wait_for_debi_done_busyloop(dev, 50000, 250000); -} - -/**************************************************************************** - * general helper functions - ****************************************************************************/ - -/* this is videobuf_vmalloc_to_sg() from videobuf-dma-sg.c - make sure virt has been allocated with vmalloc_32(), otherwise the BUG() - may be triggered on highmem machines */ -static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages) -{ - struct scatterlist *sglist; - struct page *pg; - int i; - - sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL); - if (NULL == sglist) - return NULL; - sg_init_table(sglist, nr_pages); - for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) { - pg = vmalloc_to_page(virt); - if (NULL == pg) - goto err; - BUG_ON(PageHighMem(pg)); - sg_set_page(&sglist[i], pg, PAGE_SIZE, 0); - } - return sglist; - - err: - kfree(sglist); - return NULL; -} - -/********************************************************************************/ -/* common page table functions */ - -void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt) -{ - int pages = (length+PAGE_SIZE-1)/PAGE_SIZE; - void *mem = vmalloc_32(length); - int slen = 0; - - if (NULL == mem) - goto err_null; - - if (!(pt->slist = vmalloc_to_sg(mem, pages))) - goto err_free_mem; - - if (saa7146_pgtable_alloc(pci, pt)) - goto err_free_slist; - - pt->nents = pages; - slen = pci_map_sg(pci,pt->slist,pt->nents,PCI_DMA_FROMDEVICE); - if (0 == slen) - goto err_free_pgtable; - - if (0 != saa7146_pgtable_build_single(pci, pt, pt->slist, slen)) - goto err_unmap_sg; - - return mem; - -err_unmap_sg: - pci_unmap_sg(pci, pt->slist, pt->nents, PCI_DMA_FROMDEVICE); -err_free_pgtable: - saa7146_pgtable_free(pci, pt); -err_free_slist: - kfree(pt->slist); - pt->slist = NULL; -err_free_mem: - vfree(mem); -err_null: - return NULL; -} - -void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt) -{ - pci_unmap_sg(pci, pt->slist, pt->nents, PCI_DMA_FROMDEVICE); - saa7146_pgtable_free(pci, pt); - kfree(pt->slist); - pt->slist = NULL; - vfree(mem); -} - -void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt) -{ - if (NULL == pt->cpu) - return; - pci_free_consistent(pci, pt->size, pt->cpu, pt->dma); - pt->cpu = NULL; -} - -int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt) -{ - u32 *cpu; - dma_addr_t dma_addr; - - cpu = pci_alloc_consistent(pci, PAGE_SIZE, &dma_addr); - if (NULL == cpu) { - return -ENOMEM; - } - pt->size = PAGE_SIZE; - pt->cpu = cpu; - pt->dma = dma_addr; - - return 0; -} - -int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, - struct scatterlist *list, int sglen ) -{ - u32 *ptr, fill; - int nr_pages = 0; - int i,p; - - BUG_ON(0 == sglen); - BUG_ON(list->offset > PAGE_SIZE); - - /* if we have a user buffer, the first page may not be - aligned to a page boundary. */ - pt->offset = list->offset; - - ptr = pt->cpu; - for (i = 0; i < sglen; i++, list++) { -/* - printk("i:%d, adr:0x%08x, len:%d, offset:%d\n", i,sg_dma_address(list), sg_dma_len(list), list->offset); -*/ - for (p = 0; p * 4096 < list->length; p++, ptr++) { - *ptr = cpu_to_le32(sg_dma_address(list) + p * 4096); - nr_pages++; - } - } - - - /* safety; fill the page table up with the last valid page */ - fill = *(ptr-1); - for(i=nr_pages;i<1024;i++) { - *ptr++ = fill; - } - -/* - ptr = pt->cpu; - printk("offset: %d\n",pt->offset); - for(i=0;i<5;i++) { - printk("ptr1 %d: 0x%08x\n",i,ptr[i]); - } -*/ - return 0; -} - -/********************************************************************************/ -/* interrupt handler */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) -static irqreturn_t interrupt_hw(int irq, void *dev_id, struct pt_regs *regs) -#else -static irqreturn_t interrupt_hw(int irq, void *dev_id) -#endif -{ - struct saa7146_dev *dev = dev_id; - u32 isr; - u32 ack_isr; - - /* read out the interrupt status register */ - ack_isr = isr = saa7146_read(dev, ISR); - - /* is this our interrupt? */ - if ( 0 == isr ) { - /* nope, some other device */ - return IRQ_NONE; - } - - if (dev->ext) { - if (dev->ext->irq_mask & isr) { - if (dev->ext->irq_func) - dev->ext->irq_func(dev, &isr); - isr &= ~dev->ext->irq_mask; - } - } - if (0 != (isr & (MASK_27))) { - DEB_INT(("irq: RPS0 (0x%08x).\n",isr)); - if (dev->vv_data && dev->vv_callback) - dev->vv_callback(dev,isr); - isr &= ~MASK_27; - } - if (0 != (isr & (MASK_28))) { - if (dev->vv_data && dev->vv_callback) - dev->vv_callback(dev,isr); - isr &= ~MASK_28; - } - if (0 != (isr & (MASK_16|MASK_17))) { - SAA7146_IER_DISABLE(dev, MASK_16|MASK_17); - /* only wake up if we expect something */ - if (0 != dev->i2c_op) { - dev->i2c_op = 0; - wake_up(&dev->i2c_wq); - } else { - u32 psr = saa7146_read(dev, PSR); - u32 ssr = saa7146_read(dev, SSR); - printk(KERN_WARNING "%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n", - dev->name, isr, psr, ssr); - } - isr &= ~(MASK_16|MASK_17); - } - if( 0 != isr ) { - ERR(("warning: interrupt enabled, but not handled properly.(0x%08x)\n",isr)); - ERR(("disabling interrupt source(s)!\n")); - SAA7146_IER_DISABLE(dev,isr); - } - saa7146_write(dev, ISR, ack_isr); - return IRQ_HANDLED; -} - -/*********************************************************************************/ -/* configuration-functions */ - -static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent) -{ - struct saa7146_pci_extension_data *pci_ext = (struct saa7146_pci_extension_data *)ent->driver_data; - struct saa7146_extension *ext = pci_ext->ext; - struct saa7146_dev *dev; - int err = -ENOMEM; - - /* clear out mem for sure */ - dev = kzalloc(sizeof(struct saa7146_dev), GFP_KERNEL); - if (!dev) { - ERR(("out of memory.\n")); - goto out; - } - - DEB_EE(("pci:%p\n",pci)); - - err = pci_enable_device(pci); - if (err < 0) { - ERR(("pci_enable_device() failed.\n")); - goto err_free; - } - - /* enable bus-mastering */ - pci_set_master(pci); - - dev->pci = pci; - - /* get chip-revision; this is needed to enable bug-fixes */ - err = pci_read_config_dword(pci, PCI_CLASS_REVISION, &dev->revision); - if (err < 0) { - ERR(("pci_read_config_dword() failed.\n")); - goto err_disable; - } - dev->revision &= 0xf; - - /* remap the memory from virtual to physical address */ - - err = pci_request_region(pci, 0, "saa7146"); - if (err < 0) - goto err_disable; - - dev->mem = ioremap(pci_resource_start(pci, 0), - pci_resource_len(pci, 0)); - if (!dev->mem) { - ERR(("ioremap() failed.\n")); - err = -ENODEV; - goto err_release; - } - - /* we don't do a master reset here anymore, it screws up - some boards that don't have an i2c-eeprom for configuration - values */ -/* - saa7146_write(dev, MC1, MASK_31); -*/ - - /* disable all irqs */ - saa7146_write(dev, IER, 0); - - /* shut down all dma transfers and rps tasks */ - saa7146_write(dev, MC1, 0x30ff0000); - - /* clear out any rps-signals pending */ - saa7146_write(dev, MC2, 0xf8000000); - - /* request an interrupt for the saa7146 */ - err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED | IRQF_DISABLED, - dev->name, dev); - if (err < 0) { - ERR(("request_irq() failed.\n")); - goto err_unmap; - } - - err = -ENOMEM; - - /* get memory for various stuff */ - dev->d_rps0.cpu_addr = pci_alloc_consistent(pci, SAA7146_RPS_MEM, - &dev->d_rps0.dma_handle); - if (!dev->d_rps0.cpu_addr) - goto err_free_irq; - memset(dev->d_rps0.cpu_addr, 0x0, SAA7146_RPS_MEM); - - dev->d_rps1.cpu_addr = pci_alloc_consistent(pci, SAA7146_RPS_MEM, - &dev->d_rps1.dma_handle); - if (!dev->d_rps1.cpu_addr) - goto err_free_rps0; - memset(dev->d_rps1.cpu_addr, 0x0, SAA7146_RPS_MEM); - - dev->d_i2c.cpu_addr = pci_alloc_consistent(pci, SAA7146_RPS_MEM, - &dev->d_i2c.dma_handle); - if (!dev->d_i2c.cpu_addr) - goto err_free_rps1; - memset(dev->d_i2c.cpu_addr, 0x0, SAA7146_RPS_MEM); - - /* the rest + print status message */ - - /* create a nice device name */ - sprintf(dev->name, "saa7146 (%d)", saa7146_num); - - INFO(("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x).\n", dev->mem, dev->revision, pci->irq, pci->subsystem_vendor, pci->subsystem_device)); - dev->ext = ext; - - pci_set_drvdata(pci, dev); - - mutex_init(&dev->lock); - spin_lock_init(&dev->int_slock); - spin_lock_init(&dev->slock); - - mutex_init(&dev->i2c_lock); - - dev->module = THIS_MODULE; - init_waitqueue_head(&dev->i2c_wq); - - /* set some sane pci arbitrition values */ - saa7146_write(dev, PCI_BT_V1, 0x1c00101f); - - /* TODO: use the status code of the callback */ - - err = -ENODEV; - - if (ext->probe && ext->probe(dev)) { - DEB_D(("ext->probe() failed for %p. skipping device.\n",dev)); - goto err_free_i2c; - } - - if (ext->attach(dev, pci_ext)) { - DEB_D(("ext->attach() failed for %p. skipping device.\n",dev)); - goto err_unprobe; - } - - INIT_LIST_HEAD(&dev->item); - list_add_tail(&dev->item,&saa7146_devices); - saa7146_num++; - - err = 0; -out: - return err; - -err_unprobe: - pci_set_drvdata(pci, NULL); -err_free_i2c: - pci_free_consistent(pci, SAA7146_RPS_MEM, dev->d_i2c.cpu_addr, - dev->d_i2c.dma_handle); -err_free_rps1: - pci_free_consistent(pci, SAA7146_RPS_MEM, dev->d_rps1.cpu_addr, - dev->d_rps1.dma_handle); -err_free_rps0: - pci_free_consistent(pci, SAA7146_RPS_MEM, dev->d_rps0.cpu_addr, - dev->d_rps0.dma_handle); -err_free_irq: - free_irq(pci->irq, (void *)dev); -err_unmap: - iounmap(dev->mem); -err_release: - pci_release_region(pci, 0); -err_disable: - pci_disable_device(pci); -err_free: - kfree(dev); - goto out; -} - -static void saa7146_remove_one(struct pci_dev *pdev) -{ - struct saa7146_dev* dev = pci_get_drvdata(pdev); - struct { - void *addr; - dma_addr_t dma; - } dev_map[] = { - { dev->d_i2c.cpu_addr, dev->d_i2c.dma_handle }, - { dev->d_rps1.cpu_addr, dev->d_rps1.dma_handle }, - { dev->d_rps0.cpu_addr, dev->d_rps0.dma_handle }, - { NULL, 0 } - }, *p; - - DEB_EE(("dev:%p\n",dev)); - - dev->ext->detach(dev); - - /* shut down all video dma transfers */ - saa7146_write(dev, MC1, 0x00ff0000); - - /* disable all irqs, release irq-routine */ - saa7146_write(dev, IER, 0); - - free_irq(pdev->irq, dev); - - for (p = dev_map; p->addr; p++) - pci_free_consistent(pdev, SAA7146_RPS_MEM, p->addr, p->dma); - - iounmap(dev->mem); - pci_release_region(pdev, 0); - list_del(&dev->item); - pci_disable_device(pdev); - kfree(dev); - - saa7146_num--; -} - -/*********************************************************************************/ -/* extension handling functions */ - -int saa7146_register_extension(struct saa7146_extension* ext) -{ - DEB_EE(("ext:%p\n",ext)); - - ext->driver.name = ext->name; - ext->driver.id_table = ext->pci_tbl; - ext->driver.probe = saa7146_init_one; - ext->driver.remove = saa7146_remove_one; - - printk("saa7146: register extension '%s'.\n",ext->name); - return pci_register_driver(&ext->driver); -} - -int saa7146_unregister_extension(struct saa7146_extension* ext) -{ - DEB_EE(("ext:%p\n",ext)); - printk("saa7146: unregister extension '%s'.\n",ext->name); - pci_unregister_driver(&ext->driver); - return 0; -} - -EXPORT_SYMBOL_GPL(saa7146_register_extension); -EXPORT_SYMBOL_GPL(saa7146_unregister_extension); - -/* misc functions used by extension modules */ -EXPORT_SYMBOL_GPL(saa7146_pgtable_alloc); -EXPORT_SYMBOL_GPL(saa7146_pgtable_free); -EXPORT_SYMBOL_GPL(saa7146_pgtable_build_single); -EXPORT_SYMBOL_GPL(saa7146_vmalloc_build_pgtable); -EXPORT_SYMBOL_GPL(saa7146_vfree_destroy_pgtable); -EXPORT_SYMBOL_GPL(saa7146_wait_for_debi_done); - -EXPORT_SYMBOL_GPL(saa7146_setgpio); - -EXPORT_SYMBOL_GPL(saa7146_i2c_adapter_prepare); - -EXPORT_SYMBOL_GPL(saa7146_debug); -EXPORT_SYMBOL_GPL(saa7146_devices); -EXPORT_SYMBOL_GPL(saa7146_devices_lock); - -MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); -MODULE_DESCRIPTION("driver for generic saa7146-based hardware"); -MODULE_LICENSE("GPL"); diff --git a/linux/drivers/media/video/saa7146/saa7146_fops.c b/linux/drivers/media/video/saa7146/saa7146_fops.c deleted file mode 100644 index ac035cbcf..000000000 --- a/linux/drivers/media/video/saa7146/saa7146_fops.c +++ /dev/null @@ -1,595 +0,0 @@ -#include <media/saa7146_vv.h> -#include "compat.h" - -#define BOARD_CAN_DO_VBI(dev) (dev->revision != 0 && dev->vv_data->vbi_minor != -1) - -/****************************************************************************/ -/* resource management functions, shamelessly stolen from saa7134 driver */ - -int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - if (fh->resources & bit) { - DEB_D(("already allocated! want: 0x%02x, cur:0x%02x\n",bit,vv->resources)); - /* have it already allocated */ - return 1; - } - - /* is it free? */ - mutex_lock(&dev->lock); - if (vv->resources & bit) { - DEB_D(("locked! vv->resources:0x%02x, we want:0x%02x\n",vv->resources,bit)); - /* no, someone else uses it */ - mutex_unlock(&dev->lock); - return 0; - } - /* it's free, grab it */ - fh->resources |= bit; - vv->resources |= bit; - DEB_D(("res: get 0x%02x, cur:0x%02x\n",bit,vv->resources)); - mutex_unlock(&dev->lock); - return 1; -} - -void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - BUG_ON((fh->resources & bits) != bits); - - mutex_lock(&dev->lock); - fh->resources &= ~bits; - vv->resources &= ~bits; - DEB_D(("res: put 0x%02x, cur:0x%02x\n",bits,vv->resources)); - mutex_unlock(&dev->lock); -} - - -/********************************************************************************/ -/* common dma functions */ - -void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q, - struct saa7146_buf *buf) -{ - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - DEB_EE(("dev:%p, buf:%p\n",dev,buf)); - - BUG_ON(in_interrupt()); - - videobuf_waiton(&buf->vb,0,0); - videobuf_dma_unmap(q, dma); - videobuf_dma_free(dma); - buf->vb.state = VIDEOBUF_NEEDS_INIT; -} - - -/********************************************************************************/ -/* common buffer functions */ - -int saa7146_buffer_queue(struct saa7146_dev *dev, - struct saa7146_dmaqueue *q, - struct saa7146_buf *buf) -{ - assert_spin_locked(&dev->slock); - DEB_EE(("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf)); - - BUG_ON(!q); - - if (NULL == q->curr) { - q->curr = buf; - DEB_D(("immediately activating buffer %p\n", buf)); - buf->activate(dev,buf,NULL); - } else { - list_add_tail(&buf->vb.queue,&q->queue); - buf->vb.state = VIDEOBUF_QUEUED; - DEB_D(("adding buffer %p to queue. (active buffer present)\n", buf)); - } - return 0; -} - -void saa7146_buffer_finish(struct saa7146_dev *dev, - struct saa7146_dmaqueue *q, - int state) -{ - assert_spin_locked(&dev->slock); - DEB_EE(("dev:%p, dmaq:%p, state:%d\n", dev, q, state)); - DEB_EE(("q->curr:%p\n",q->curr)); - - BUG_ON(!q->curr); - - /* finish current buffer */ - if (NULL == q->curr) { - DEB_D(("aiii. no current buffer\n")); - return; - } - - q->curr->vb.state = state; - do_gettimeofday(&q->curr->vb.ts); - wake_up(&q->curr->vb.done); - - q->curr = NULL; -} - -void saa7146_buffer_next(struct saa7146_dev *dev, - struct saa7146_dmaqueue *q, int vbi) -{ - struct saa7146_buf *buf,*next = NULL; - - BUG_ON(!q); - - DEB_INT(("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi)); - - assert_spin_locked(&dev->slock); - if (!list_empty(&q->queue)) { - /* activate next one from queue */ - buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue); - list_del(&buf->vb.queue); - if (!list_empty(&q->queue)) - next = list_entry(q->queue.next,struct saa7146_buf, vb.queue); - q->curr = buf; - DEB_INT(("next buffer: buf:%p, prev:%p, next:%p\n", buf, q->queue.prev,q->queue.next)); - buf->activate(dev,buf,next); - } else { - DEB_INT(("no next buffer. stopping.\n")); - if( 0 != vbi ) { - /* turn off video-dma3 */ - saa7146_write(dev,MC1, MASK_20); - } else { - /* nothing to do -- just prevent next video-dma1 transfer - by lowering the protection address */ - - // fixme: fix this for vflip != 0 - - saa7146_write(dev, PROT_ADDR1, 0); - saa7146_write(dev, MC2, (MASK_02|MASK_18)); - - /* write the address of the rps-program */ - saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle); - /* turn on rps */ - saa7146_write(dev, MC1, (MASK_12 | MASK_28)); - -/* - printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1)); - printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1)); - printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1)); - printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1)); - printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1)); - printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1)); -*/ - } - del_timer(&q->timeout); - } -} - -void saa7146_buffer_timeout(unsigned long data) -{ - struct saa7146_dmaqueue *q = (struct saa7146_dmaqueue*)data; - struct saa7146_dev *dev = q->dev; - unsigned long flags; - - DEB_EE(("dev:%p, dmaq:%p\n", dev, q)); - - spin_lock_irqsave(&dev->slock,flags); - if (q->curr) { - DEB_D(("timeout on %p\n", q->curr)); - saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR); - } - - /* we don't restart the transfer here like other drivers do. when - a streaming capture is disabled, the timeout function will be - called for the current buffer. if we activate the next buffer now, - we mess up our capture logic. if a timeout occurs on another buffer, - then something is seriously broken before, so no need to buffer the - next capture IMHO... */ -/* - saa7146_buffer_next(dev,q); -*/ - spin_unlock_irqrestore(&dev->slock,flags); -} - -/********************************************************************************/ -/* file operations */ - -static int fops_open(struct inode *inode, struct file *file) -{ - unsigned int minor = iminor(inode); - struct saa7146_dev *h = NULL, *dev = NULL; - struct list_head *list; - struct saa7146_fh *fh = NULL; - int result = 0; - - enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - DEB_EE(("inode:%p, file:%p, minor:%d\n",inode,file,minor)); - - if (mutex_lock_interruptible(&saa7146_devices_lock)) - return -ERESTARTSYS; - - list_for_each(list,&saa7146_devices) { - h = list_entry(list, struct saa7146_dev, item); - if( NULL == h->vv_data ) { - DEB_D(("device %p has not registered video devices.\n",h)); - continue; - } - DEB_D(("trying: %p @ major %d,%d\n",h,h->vv_data->video_minor,h->vv_data->vbi_minor)); - - if (h->vv_data->video_minor == minor) { - dev = h; - } - if (h->vv_data->vbi_minor == minor) { - type = V4L2_BUF_TYPE_VBI_CAPTURE; - dev = h; - } - } - if (NULL == dev) { - DEB_S(("no such video device.\n")); - result = -ENODEV; - goto out; - } - - DEB_D(("using: %p\n",dev)); - - /* check if an extension is registered */ - if( NULL == dev->ext ) { - DEB_S(("no extension registered for this device.\n")); - result = -ENODEV; - goto out; - } - - /* allocate per open data */ - fh = kzalloc(sizeof(*fh),GFP_KERNEL); - if (NULL == fh) { - DEB_S(("cannot allocate memory for per open data.\n")); - result = -ENOMEM; - goto out; - } - - file->private_data = fh; - fh->dev = dev; - fh->type = type; - - if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { - DEB_S(("initializing vbi...\n")); - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - result = saa7146_vbi_uops.open(dev,file); - if (dev->ext_vv_data->vbi_fops.open) - dev->ext_vv_data->vbi_fops.open(inode, file); - } else { - DEB_S(("initializing video...\n")); - result = saa7146_video_uops.open(dev,file); - } - - if (0 != result) { - goto out; - } - - if( 0 == try_module_get(dev->ext->module)) { - result = -EINVAL; - goto out; - } - - result = 0; -out: - if (fh && result != 0) { - kfree(fh); - file->private_data = NULL; - } - mutex_unlock(&saa7146_devices_lock); - return result; -} - -static int fops_release(struct inode *inode, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - - DEB_EE(("inode:%p, file:%p\n",inode,file)); - - if (mutex_lock_interruptible(&saa7146_devices_lock)) - return -ERESTARTSYS; - - if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - saa7146_vbi_uops.release(dev,file); - if (dev->ext_vv_data->vbi_fops.release) - dev->ext_vv_data->vbi_fops.release(inode, file); - } else { - saa7146_video_uops.release(dev,file); - } - - module_put(dev->ext->module); - file->private_data = NULL; - kfree(fh); - - mutex_unlock(&saa7146_devices_lock); - - return 0; -} - -static int fops_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ -/* - DEB_EE(("inode:%p, file:%p, cmd:%d, arg:%li\n",inode, file, cmd, arg)); -*/ - return video_usercopy(inode, file, cmd, arg, saa7146_video_do_ioctl); -} - -static int fops_mmap(struct file *file, struct vm_area_struct * vma) -{ - struct saa7146_fh *fh = file->private_data; - struct videobuf_queue *q; - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: { - DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n",file, vma)); - q = &fh->video_q; - break; - } - case V4L2_BUF_TYPE_VBI_CAPTURE: { - DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",file, vma)); - q = &fh->vbi_q; - break; - } - default: - BUG(); - return 0; - } - - return videobuf_mmap_mapper(q,vma); -} - -static unsigned int fops_poll(struct file *file, struct poll_table_struct *wait) -{ - struct saa7146_fh *fh = file->private_data; - struct videobuf_buffer *buf = NULL; - struct videobuf_queue *q; - - DEB_EE(("file:%p, poll:%p\n",file, wait)); - - if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { - if( 0 == fh->vbi_q.streaming ) - return videobuf_poll_stream(file, &fh->vbi_q, wait); - q = &fh->vbi_q; - } else { - DEB_D(("using video queue.\n")); - q = &fh->video_q; - } - - if (!list_empty(&q->stream)) - buf = list_entry(q->stream.next, struct videobuf_buffer, stream); - - if (!buf) { - DEB_D(("buf == NULL!\n")); - return POLLERR; - } - - poll_wait(file, &buf->done, wait); - if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) { - DEB_D(("poll succeeded!\n")); - return POLLIN|POLLRDNORM; - } - - DEB_D(("nothing to poll for, buf->state:%d\n",buf->state)); - return 0; -} - -static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: { -// DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun", file, data, (unsigned long)count)); - return saa7146_video_uops.read(file,data,count,ppos); - } - case V4L2_BUF_TYPE_VBI_CAPTURE: { -// DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", file, data, (unsigned long)count)); - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - return saa7146_vbi_uops.read(file,data,count,ppos); - else - return -EINVAL; - } - break; - default: - BUG(); - return 0; - } -} - -static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - return -EINVAL; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (fh->dev->ext_vv_data->vbi_fops.write) - return fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); - else - return -EINVAL; - default: - BUG(); - return -EINVAL; - } -} - -static const struct file_operations video_fops = -{ - .owner = THIS_MODULE, - .open = fops_open, - .release = fops_release, - .read = fops_read, - .write = fops_write, - .poll = fops_poll, - .mmap = fops_mmap, - .ioctl = fops_ioctl, - .llseek = no_llseek, -}; - -static void vv_callback(struct saa7146_dev *dev, unsigned long status) -{ - u32 isr = status; - - DEB_INT(("dev:%p, isr:0x%08x\n",dev,(u32)status)); - - if (0 != (isr & (MASK_27))) { - DEB_INT(("irq: RPS0 (0x%08x).\n",isr)); - saa7146_video_uops.irq_done(dev,isr); - } - - if (0 != (isr & (MASK_28))) { - u32 mc2 = saa7146_read(dev, MC2); - if( 0 != (mc2 & MASK_15)) { - DEB_INT(("irq: RPS1 vbi workaround (0x%08x).\n",isr)); - wake_up(&dev->vv_data->vbi_wq); - saa7146_write(dev,MC2, MASK_31); - return; - } - DEB_INT(("irq: RPS1 (0x%08x).\n",isr)); - saa7146_vbi_uops.irq_done(dev,isr); - } -} - -static struct video_device device_template = -{ - .fops = &video_fops, - .minor = -1, -}; - -int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) -{ - struct saa7146_vv *vv = kzalloc (sizeof(struct saa7146_vv),GFP_KERNEL); - if( NULL == vv ) { - ERR(("out of memory. aborting.\n")); - return -1; - } - - DEB_EE(("dev:%p\n",dev)); - - /* set default values for video parts of the saa7146 */ - saa7146_write(dev, BCS_CTRL, 0x80400040); - - /* enable video-port pins */ - saa7146_write(dev, MC1, (MASK_10 | MASK_26)); - - /* save per-device extension data (one extension can - handle different devices that might need different - configuration data) */ - dev->ext_vv_data = ext_vv; - - vv->video_minor = -1; - vv->vbi_minor = -1; - - vv->d_clipping.cpu_addr = pci_alloc_consistent(dev->pci, SAA7146_CLIPPING_MEM, &vv->d_clipping.dma_handle); - if( NULL == vv->d_clipping.cpu_addr ) { - ERR(("out of memory. aborting.\n")); - kfree(vv); - return -1; - } - memset(vv->d_clipping.cpu_addr, 0x0, SAA7146_CLIPPING_MEM); - - saa7146_video_uops.init(dev,vv); - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - saa7146_vbi_uops.init(dev,vv); - - dev->vv_data = vv; - dev->vv_callback = &vv_callback; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_vv_init); - -int saa7146_vv_release(struct saa7146_dev* dev) -{ - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE(("dev:%p\n",dev)); - - pci_free_consistent(dev->pci, SAA7146_CLIPPING_MEM, vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle); - kfree(vv); - dev->vv_data = NULL; - dev->vv_callback = NULL; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_vv_release); - -int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, - char *name, int type) -{ - struct saa7146_vv *vv = dev->vv_data; - struct video_device *vfd; - - DEB_EE(("dev:%p, name:'%s', type:%d\n",dev,name,type)); - - // released by vfd->release - vfd = video_device_alloc(); - if (vfd == NULL) - return -ENOMEM; - - memcpy(vfd, &device_template, sizeof(struct video_device)); - strlcpy(vfd->name, name, sizeof(vfd->name)); - vfd->release = video_device_release; - vfd->priv = dev; - - // fixme: -1 should be an insmod parameter *for the extension* (like "video_nr"); - if (video_register_device(vfd, type, -1) < 0) { - ERR(("cannot register v4l2 device. skipping.\n")); - video_device_release(vfd); - return -1; - } - - if( VFL_TYPE_GRABBER == type ) { - vv->video_minor = vfd->minor; - INFO(("%s: registered device video%d [v4l2]\n", - dev->name, vfd->minor & 0x1f)); - } else { - vv->vbi_minor = vfd->minor; - INFO(("%s: registered device vbi%d [v4l2]\n", - dev->name, vfd->minor & 0x1f)); - } - - *vid = vfd; - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_register_device); - -int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev) -{ - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE(("dev:%p\n",dev)); - - if( VFL_TYPE_GRABBER == (*vid)->type ) { - vv->video_minor = -1; - } else { - vv->vbi_minor = -1; - } - - video_unregister_device(*vid); - *vid = NULL; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_unregister_device); - -static int __init saa7146_vv_init_module(void) -{ - return 0; -} - - -static void __exit saa7146_vv_cleanup_module(void) -{ -} - -module_init(saa7146_vv_init_module); -module_exit(saa7146_vv_cleanup_module); - -MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); -MODULE_DESCRIPTION("video4linux driver for saa7146-based hardware"); -MODULE_LICENSE("GPL"); diff --git a/linux/drivers/media/video/saa7146/saa7146_hlp.c b/linux/drivers/media/video/saa7146/saa7146_hlp.c deleted file mode 100644 index c0f3f51f9..000000000 --- a/linux/drivers/media/video/saa7146/saa7146_hlp.c +++ /dev/null @@ -1,1045 +0,0 @@ -#include <linux/kernel.h> -#include <media/saa7146_vv.h> -#include "compat.h" - -static void calculate_output_format_register(struct saa7146_dev* saa, u32 palette, u32* clip_format) -{ - /* clear out the necessary bits */ - *clip_format &= 0x0000ffff; - /* set these bits new */ - *clip_format |= (( ((palette&0xf00)>>8) << 30) | ((palette&0x00f) << 24) | (((palette&0x0f0)>>4) << 16)); -} - -static void calculate_hps_source_and_sync(struct saa7146_dev *dev, int source, int sync, u32* hps_ctrl) -{ - *hps_ctrl &= ~(MASK_30 | MASK_31 | MASK_28); - *hps_ctrl |= (source << 30) | (sync << 28); -} - -static void calculate_hxo_and_hyo(struct saa7146_vv *vv, u32* hps_h_scale, u32* hps_ctrl) -{ - int hyo = 0, hxo = 0; - - hyo = vv->standard->v_offset; - hxo = vv->standard->h_offset; - - *hps_h_scale &= ~(MASK_B0 | 0xf00); - *hps_h_scale |= (hxo << 0); - - *hps_ctrl &= ~(MASK_W0 | MASK_B2); - *hps_ctrl |= (hyo << 12); -} - -/* helper functions for the calculation of the horizontal- and vertical - scaling registers, clip-format-register etc ... - these functions take pointers to the (most-likely read-out - original-values) and manipulate them according to the requested - changes. -*/ - -/* hps_coeff used for CXY and CXUV; scale 1/1 -> scale 1/64 */ -static struct { - u16 hps_coeff; - u16 weight_sum; -} hps_h_coeff_tab [] = { - {0x00, 2}, {0x02, 4}, {0x00, 4}, {0x06, 8}, {0x02, 8}, - {0x08, 8}, {0x00, 8}, {0x1E, 16}, {0x0E, 8}, {0x26, 8}, - {0x06, 8}, {0x42, 8}, {0x02, 8}, {0x80, 8}, {0x00, 8}, - {0xFE, 16}, {0xFE, 8}, {0x7E, 8}, {0x7E, 8}, {0x3E, 8}, - {0x3E, 8}, {0x1E, 8}, {0x1E, 8}, {0x0E, 8}, {0x0E, 8}, - {0x06, 8}, {0x06, 8}, {0x02, 8}, {0x02, 8}, {0x00, 8}, - {0x00, 8}, {0xFE, 16}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, - {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, - {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, - {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0x7E, 8}, - {0x7E, 8}, {0x3E, 8}, {0x3E, 8}, {0x1E, 8}, {0x1E, 8}, - {0x0E, 8}, {0x0E, 8}, {0x06, 8}, {0x06, 8}, {0x02, 8}, - {0x02, 8}, {0x00, 8}, {0x00, 8}, {0xFE, 16} -}; - -/* table of attenuation values for horizontal scaling */ -static u8 h_attenuation[] = { 1, 2, 4, 8, 2, 4, 8, 16, 0}; - -/* calculate horizontal scale registers */ -static int calculate_h_scale_registers(struct saa7146_dev *dev, - int in_x, int out_x, int flip_lr, - u32* hps_ctrl, u32* hps_v_gain, u32* hps_h_prescale, u32* hps_h_scale) -{ - /* horizontal prescaler */ - u32 dcgx = 0, xpsc = 0, xacm = 0, cxy = 0, cxuv = 0; - /* horizontal scaler */ - u32 xim = 0, xp = 0, xsci =0; - /* vertical scale & gain */ - u32 pfuv = 0; - - /* helper variables */ - u32 h_atten = 0, i = 0; - - if ( 0 == out_x ) { - return -EINVAL; - } - - /* mask out vanity-bit */ - *hps_ctrl &= ~MASK_29; - - /* calculate prescale-(xspc)-value: [n .. 1/2) : 1 - [1/2 .. 1/3) : 2 - [1/3 .. 1/4) : 3 - ... */ - if (in_x > out_x) { - xpsc = in_x / out_x; - } - else { - /* zooming */ - xpsc = 1; - } - - /* if flip_lr-bit is set, number of pixels after - horizontal prescaling must be < 384 */ - if ( 0 != flip_lr ) { - - /* set vanity bit */ - *hps_ctrl |= MASK_29; - - while (in_x / xpsc >= 384 ) - xpsc++; - } - /* if zooming is wanted, number of pixels after - horizontal prescaling must be < 768 */ - else { - while ( in_x / xpsc >= 768 ) - xpsc++; - } - - /* maximum prescale is 64 (p.69) */ - if ( xpsc > 64 ) - xpsc = 64; - - /* keep xacm clear*/ - xacm = 0; - - /* set horizontal filter parameters (CXY = CXUV) */ - cxy = hps_h_coeff_tab[( (xpsc - 1) < 63 ? (xpsc - 1) : 63 )].hps_coeff; - cxuv = cxy; - - /* calculate and set horizontal fine scale (xsci) */ - - /* bypass the horizontal scaler ? */ - if ( (in_x == out_x) && ( 1 == xpsc ) ) - xsci = 0x400; - else - xsci = ( (1024 * in_x) / (out_x * xpsc) ) + xpsc; - - /* set start phase for horizontal fine scale (xp) to 0 */ - xp = 0; - - /* set xim, if we bypass the horizontal scaler */ - if ( 0x400 == xsci ) - xim = 1; - else - xim = 0; - - /* if the prescaler is bypassed, enable horizontal - accumulation mode (xacm) and clear dcgx */ - if( 1 == xpsc ) { - xacm = 1; - dcgx = 0; - } else { - xacm = 0; - /* get best match in the table of attenuations - for horizontal scaling */ - h_atten = hps_h_coeff_tab[( (xpsc - 1) < 63 ? (xpsc - 1) : 63 )].weight_sum; - - for (i = 0; h_attenuation[i] != 0; i++) { - if (h_attenuation[i] >= h_atten) - break; - } - - dcgx = i; - } - - /* the horizontal scaling increment controls the UV filter - to reduce the bandwidth to improve the display quality, - so set it ... */ - if ( xsci == 0x400) - pfuv = 0x00; - else if ( xsci < 0x600) - pfuv = 0x01; - else if ( xsci < 0x680) - pfuv = 0x11; - else if ( xsci < 0x700) - pfuv = 0x22; - else - pfuv = 0x33; - - - *hps_v_gain &= MASK_W0|MASK_B2; - *hps_v_gain |= (pfuv << 24); - - *hps_h_scale &= ~(MASK_W1 | 0xf000); - *hps_h_scale |= (xim << 31) | (xp << 24) | (xsci << 12); - - *hps_h_prescale |= (dcgx << 27) | ((xpsc-1) << 18) | (xacm << 17) | (cxy << 8) | (cxuv << 0); - - return 0; -} - -static struct { - u16 hps_coeff; - u16 weight_sum; -} hps_v_coeff_tab [] = { - {0x0100, 2}, {0x0102, 4}, {0x0300, 4}, {0x0106, 8}, {0x0502, 8}, - {0x0708, 8}, {0x0F00, 8}, {0x011E, 16}, {0x110E, 16}, {0x1926, 16}, - {0x3906, 16}, {0x3D42, 16}, {0x7D02, 16}, {0x7F80, 16}, {0xFF00, 16}, - {0x01FE, 32}, {0x01FE, 32}, {0x817E, 32}, {0x817E, 32}, {0xC13E, 32}, - {0xC13E, 32}, {0xE11E, 32}, {0xE11E, 32}, {0xF10E, 32}, {0xF10E, 32}, - {0xF906, 32}, {0xF906, 32}, {0xFD02, 32}, {0xFD02, 32}, {0xFF00, 32}, - {0xFF00, 32}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, - {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, - {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, - {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x817E, 64}, - {0x817E, 64}, {0xC13E, 64}, {0xC13E, 64}, {0xE11E, 64}, {0xE11E, 64}, - {0xF10E, 64}, {0xF10E, 64}, {0xF906, 64}, {0xF906, 64}, {0xFD02, 64}, - {0xFD02, 64}, {0xFF00, 64}, {0xFF00, 64}, {0x01FE, 128} -}; - -/* table of attenuation values for vertical scaling */ -static u16 v_attenuation[] = { 2, 4, 8, 16, 32, 64, 128, 256, 0}; - -/* calculate vertical scale registers */ -static int calculate_v_scale_registers(struct saa7146_dev *dev, enum v4l2_field field, - int in_y, int out_y, u32* hps_v_scale, u32* hps_v_gain) -{ - int lpi = 0; - - /* vertical scaling */ - u32 yacm = 0, ysci = 0, yacl = 0, ypo = 0, ype = 0; - /* vertical scale & gain */ - u32 dcgy = 0, cya_cyb = 0; - - /* helper variables */ - u32 v_atten = 0, i = 0; - - /* error, if vertical zooming */ - if ( in_y < out_y ) { - return -EINVAL; - } - - /* linear phase interpolation may be used - if scaling is between 1 and 1/2 (both fields used) - or scaling is between 1/2 and 1/4 (if only one field is used) */ - - if (V4L2_FIELD_HAS_BOTH(field)) { - if( 2*out_y >= in_y) { - lpi = 1; - } - } else if (field == V4L2_FIELD_TOP - || field == V4L2_FIELD_ALTERNATE - || field == V4L2_FIELD_BOTTOM) { - if( 4*out_y >= in_y ) { - lpi = 1; - } - out_y *= 2; - } - if( 0 != lpi ) { - - yacm = 0; - yacl = 0; - cya_cyb = 0x00ff; - - /* calculate scaling increment */ - if ( in_y > out_y ) - ysci = ((1024 * in_y) / (out_y + 1)) - 1024; - else - ysci = 0; - - dcgy = 0; - - /* calculate ype and ypo */ - ype = ysci / 16; - ypo = ype + (ysci / 64); - - } else { - yacm = 1; - - /* calculate scaling increment */ - ysci = (((10 * 1024 * (in_y - out_y - 1)) / in_y) + 9) / 10; - - /* calculate ype and ypo */ - ypo = ype = ((ysci + 15) / 16); - - /* the sequence length interval (yacl) has to be set according - to the prescale value, e.g. [n .. 1/2) : 0 - [1/2 .. 1/3) : 1 - [1/3 .. 1/4) : 2 - ... */ - if ( ysci < 512) { - yacl = 0; - } else { - yacl = ( ysci / (1024 - ysci) ); - } - - /* get filter coefficients for cya, cyb from table hps_v_coeff_tab */ - cya_cyb = hps_v_coeff_tab[ (yacl < 63 ? yacl : 63 ) ].hps_coeff; - - /* get best match in the table of attenuations for vertical scaling */ - v_atten = hps_v_coeff_tab[ (yacl < 63 ? yacl : 63 ) ].weight_sum; - - for (i = 0; v_attenuation[i] != 0; i++) { - if (v_attenuation[i] >= v_atten) - break; - } - - dcgy = i; - } - - /* ypo and ype swapped in spec ? */ - *hps_v_scale |= (yacm << 31) | (ysci << 21) | (yacl << 15) | (ypo << 8 ) | (ype << 1); - - *hps_v_gain &= ~(MASK_W0|MASK_B2); - *hps_v_gain |= (dcgy << 16) | (cya_cyb << 0); - - return 0; -} - -/* simple bubble-sort algorithm with duplicate elimination */ -static int sort_and_eliminate(u32* values, int* count) -{ - int low = 0, high = 0, top = 0, temp = 0; - int cur = 0, next = 0; - - /* sanity checks */ - if( (0 > *count) || (NULL == values) ) { - return -EINVAL; - } - - /* bubble sort the first @count items of the array @values */ - for( top = *count; top > 0; top--) { - for( low = 0, high = 1; high < top; low++, high++) { - if( values[low] > values[high] ) { - temp = values[low]; - values[low] = values[high]; - values[high] = temp; - } - } - } - - /* remove duplicate items */ - for( cur = 0, next = 1; next < *count; next++) { - if( values[cur] != values[next]) - values[++cur] = values[next]; - } - - *count = cur + 1; - - return 0; -} - -static void calculate_clipping_registers_rect(struct saa7146_dev *dev, struct saa7146_fh *fh, - struct saa7146_video_dma *vdma2, u32* clip_format, u32* arbtr_ctrl, enum v4l2_field field) -{ - struct saa7146_vv *vv = dev->vv_data; - u32 *clipping = vv->d_clipping.cpu_addr; - - int width = fh->ov.win.w.width; - int height = fh->ov.win.w.height; - int clipcount = fh->ov.nclips; - - u32 line_list[32]; - u32 pixel_list[32]; - int numdwords = 0; - - int i = 0, j = 0; - int cnt_line = 0, cnt_pixel = 0; - - int x[32], y[32], w[32], h[32]; - - /* clear out memory */ - memset(&line_list[0], 0x00, sizeof(u32)*32); - memset(&pixel_list[0], 0x00, sizeof(u32)*32); - memset(clipping, 0x00, SAA7146_CLIPPING_MEM); - - /* fill the line and pixel-lists */ - for(i = 0; i < clipcount; i++) { - int l = 0, r = 0, t = 0, b = 0; - - x[i] = fh->ov.clips[i].c.left; - y[i] = fh->ov.clips[i].c.top; - w[i] = fh->ov.clips[i].c.width; - h[i] = fh->ov.clips[i].c.height; - - if( w[i] < 0) { - x[i] += w[i]; w[i] = -w[i]; - } - if( h[i] < 0) { - y[i] += h[i]; h[i] = -h[i]; - } - if( x[i] < 0) { - w[i] += x[i]; x[i] = 0; - } - if( y[i] < 0) { - h[i] += y[i]; y[i] = 0; - } - if( 0 != vv->vflip ) { - y[i] = height - y[i] - h[i]; - } - - l = x[i]; - r = x[i]+w[i]; - t = y[i]; - b = y[i]+h[i]; - - /* insert left/right coordinates */ - pixel_list[ 2*i ] = min_t(int, l, width); - pixel_list[(2*i)+1] = min_t(int, r, width); - /* insert top/bottom coordinates */ - line_list[ 2*i ] = min_t(int, t, height); - line_list[(2*i)+1] = min_t(int, b, height); - } - - /* sort and eliminate lists */ - cnt_line = cnt_pixel = 2*clipcount; - sort_and_eliminate( &pixel_list[0], &cnt_pixel ); - sort_and_eliminate( &line_list[0], &cnt_line ); - - /* calculate the number of used u32s */ - numdwords = max_t(int, (cnt_line+1), (cnt_pixel+1))*2; - numdwords = max_t(int, 4, numdwords); - numdwords = min_t(int, 64, numdwords); - - /* fill up cliptable */ - for(i = 0; i < cnt_pixel; i++) { - clipping[2*i] |= cpu_to_le32(pixel_list[i] << 16); - } - for(i = 0; i < cnt_line; i++) { - clipping[(2*i)+1] |= cpu_to_le32(line_list[i] << 16); - } - - /* fill up cliptable with the display infos */ - for(j = 0; j < clipcount; j++) { - - for(i = 0; i < cnt_pixel; i++) { - - if( x[j] < 0) - x[j] = 0; - - if( pixel_list[i] < (x[j] + w[j])) { - - if ( pixel_list[i] >= x[j] ) { - clipping[2*i] |= cpu_to_le32(1 << j); - } - } - } - for(i = 0; i < cnt_line; i++) { - - if( y[j] < 0) - y[j] = 0; - - if( line_list[i] < (y[j] + h[j]) ) { - - if( line_list[i] >= y[j] ) { - clipping[(2*i)+1] |= cpu_to_le32(1 << j); - } - } - } - } - - /* adjust arbitration control register */ - *arbtr_ctrl &= 0xffff00ff; - *arbtr_ctrl |= 0x00001c00; - - vdma2->base_even = vv->d_clipping.dma_handle; - vdma2->base_odd = vv->d_clipping.dma_handle; - vdma2->prot_addr = vv->d_clipping.dma_handle+((sizeof(u32))*(numdwords)); - vdma2->base_page = 0x04; - vdma2->pitch = 0x00; - vdma2->num_line_byte = (0 << 16 | (sizeof(u32))*(numdwords-1) ); - - /* set clipping-mode. this depends on the field(s) used */ - *clip_format &= 0xfffffff7; - if (V4L2_FIELD_HAS_BOTH(field)) { - *clip_format |= 0x00000008; - } else { - *clip_format |= 0x00000000; - } -} - -/* disable clipping */ -static void saa7146_disable_clipping(struct saa7146_dev *dev) -{ - u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - - /* mask out relevant bits (=lower word)*/ - clip_format &= MASK_W1; - - /* upload clipping-registers*/ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); - - /* disable video dma2 */ - saa7146_write(dev, MC1, MASK_21); -} - -static void saa7146_set_clipping_rect(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - enum v4l2_field field = fh->ov.win.field; - struct saa7146_video_dma vdma2; - u32 clip_format; - u32 arbtr_ctrl; - - /* check clipcount, disable clipping if clipcount == 0*/ - if( fh->ov.nclips == 0 ) { - saa7146_disable_clipping(dev); - return; - } - - clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); - - calculate_clipping_registers_rect(dev, fh, &vdma2, &clip_format, &arbtr_ctrl, field); - - /* set clipping format */ - clip_format &= 0xffff0008; - clip_format |= (SAA7146_CLIPPING_RECT << 4); - - /* prepare video dma2 */ - saa7146_write(dev, BASE_EVEN2, vdma2.base_even); - saa7146_write(dev, BASE_ODD2, vdma2.base_odd); - saa7146_write(dev, PROT_ADDR2, vdma2.prot_addr); - saa7146_write(dev, BASE_PAGE2, vdma2.base_page); - saa7146_write(dev, PITCH2, vdma2.pitch); - saa7146_write(dev, NUM_LINE_BYTE2, vdma2.num_line_byte); - - /* prepare the rest */ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); - - /* upload clip_control-register, clipping-registers, enable video dma2 */ - saa7146_write(dev, MC2, (MASK_05 | MASK_21 | MASK_03 | MASK_19)); - saa7146_write(dev, MC1, (MASK_05 | MASK_21)); -} - -static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, enum v4l2_field field) -{ - struct saa7146_vv *vv = dev->vv_data; - - int source = vv->current_hps_source; - int sync = vv->current_hps_sync; - - u32 hps_v_scale = 0, hps_v_gain = 0, hps_ctrl = 0, hps_h_prescale = 0, hps_h_scale = 0; - - /* set vertical scale */ - hps_v_scale = 0; /* all bits get set by the function-call */ - hps_v_gain = 0; /* fixme: saa7146_read(dev, HPS_V_GAIN);*/ - calculate_v_scale_registers(dev, field, vv->standard->v_field*2, height, &hps_v_scale, &hps_v_gain); - - /* set horizontal scale */ - hps_ctrl = 0; - hps_h_prescale = 0; /* all bits get set in the function */ - hps_h_scale = 0; - calculate_h_scale_registers(dev, vv->standard->h_pixels, width, vv->hflip, &hps_ctrl, &hps_v_gain, &hps_h_prescale, &hps_h_scale); - - /* set hyo and hxo */ - calculate_hxo_and_hyo(vv, &hps_h_scale, &hps_ctrl); - calculate_hps_source_and_sync(dev, source, sync, &hps_ctrl); - - /* write out new register contents */ - saa7146_write(dev, HPS_V_SCALE, hps_v_scale); - saa7146_write(dev, HPS_V_GAIN, hps_v_gain); - saa7146_write(dev, HPS_CTRL, hps_ctrl); - saa7146_write(dev, HPS_H_PRESCALE,hps_h_prescale); - saa7146_write(dev, HPS_H_SCALE, hps_h_scale); - - /* upload shadow-ram registers */ - saa7146_write(dev, MC2, (MASK_05 | MASK_06 | MASK_21 | MASK_22) ); -} - -/* calculate the new memory offsets for a desired position */ -static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *sfmt = format_by_fourcc(dev, pixelformat); - - int b_depth = vv->ov_fmt->depth; - int b_bpl = vv->ov_fb.fmt.bytesperline; - /* The unsigned long cast is to remove a 64-bit compile warning since - it looks like a 64-bit address is cast to a 32-bit value, even - though the base pointer is really a 32-bit physical address that - goes into a 32-bit DMA register. - FIXME: might not work on some 64-bit platforms, but see the FIXME - in struct v4l2_framebuffer (videodev2.h) for that. - */ - u32 base = (u32)(unsigned long)vv->ov_fb.base; - - struct saa7146_video_dma vdma1; - - /* calculate memory offsets for picture, look if we shall top-down-flip */ - vdma1.pitch = 2*b_bpl; - if ( 0 == vv->vflip ) { - vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even + (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2)); - } - else { - vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even - (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2)); - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - - if ( 0 != vv->vflip ) { - vdma1.pitch *= -1; - } - - vdma1.base_page = sfmt->swap; - vdma1.num_line_byte = (vv->standard->v_field<<16)+vv->standard->h_pixels; - - saa7146_write_out_dma(dev, 1, &vdma1); -} - -static void saa7146_set_output_format(struct saa7146_dev *dev, unsigned long palette) -{ - u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - - /* call helper function */ - calculate_output_format_register(dev,palette,&clip_format); - - /* update the hps registers */ - saa7146_write(dev, CLIP_FORMAT_CTRL, clip_format); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); -} - -/* select input-source */ -void saa7146_set_hps_source_and_sync(struct saa7146_dev *dev, int source, int sync) -{ - struct saa7146_vv *vv = dev->vv_data; - u32 hps_ctrl = 0; - - /* read old state */ - hps_ctrl = saa7146_read(dev, HPS_CTRL); - - hps_ctrl &= ~( MASK_31 | MASK_30 | MASK_28 ); - hps_ctrl |= (source << 30) | (sync << 28); - - /* write back & upload register */ - saa7146_write(dev, HPS_CTRL, hps_ctrl); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); - - vv->current_hps_source = source; - vv->current_hps_sync = sync; -} -EXPORT_SYMBOL_GPL(saa7146_set_hps_source_and_sync); - -int saa7146_enable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - saa7146_set_window(dev, fh->ov.win.w.width, fh->ov.win.w.height, fh->ov.win.field); - saa7146_set_position(dev, fh->ov.win.w.left, fh->ov.win.w.top, fh->ov.win.w.height, fh->ov.win.field, vv->ov_fmt->pixelformat); - saa7146_set_output_format(dev, vv->ov_fmt->trans); - saa7146_set_clipping_rect(fh); - - /* enable video dma1 */ - saa7146_write(dev, MC1, (MASK_06 | MASK_22)); - return 0; -} - -void saa7146_disable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - - /* disable clipping + video dma1 */ - saa7146_disable_clipping(dev); - saa7146_write(dev, MC1, MASK_22); -} - -void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) -{ - int where = 0; - - if( which < 1 || which > 3) { - return; - } - - /* calculate starting address */ - where = (which-1)*0x18; - - saa7146_write(dev, where, vdma->base_odd); - saa7146_write(dev, where+0x04, vdma->base_even); - saa7146_write(dev, where+0x08, vdma->prot_addr); - saa7146_write(dev, where+0x0c, vdma->pitch); - saa7146_write(dev, where+0x10, vdma->base_page); - saa7146_write(dev, where+0x14, vdma->num_line_byte); - - /* upload */ - saa7146_write(dev, MC2, (MASK_02<<(which-1))|(MASK_18<<(which-1))); -/* - printk("vdma%d.base_even: 0x%08x\n", which,vdma->base_even); - printk("vdma%d.base_odd: 0x%08x\n", which,vdma->base_odd); - printk("vdma%d.prot_addr: 0x%08x\n", which,vdma->prot_addr); - printk("vdma%d.base_page: 0x%08x\n", which,vdma->base_page); - printk("vdma%d.pitch: 0x%08x\n", which,vdma->pitch); - printk("vdma%d.num_line_byte: 0x%08x\n", which,vdma->num_line_byte); -*/ -} - -static int calculate_video_dma_grab_packed(struct saa7146_dev* dev, struct saa7146_buf *buf) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_video_dma vdma1; - - struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); - - int width = buf->fmt->width; - int height = buf->fmt->height; - int bytesperline = buf->fmt->bytesperline; - enum v4l2_field field = buf->fmt->field; - - int depth = sfmt->depth; - - DEB_CAP(("[size=%dx%d,fields=%s]\n", - width,height,v4l2_field_names[field])); - - if( bytesperline != 0) { - vdma1.pitch = bytesperline*2; - } else { - vdma1.pitch = (width*depth*2)/8; - } - vdma1.num_line_byte = ((vv->standard->v_field<<16) + vv->standard->h_pixels); - vdma1.base_page = buf->pt[0].dma | ME1 | sfmt->swap; - - if( 0 != vv->vflip ) { - vdma1.prot_addr = buf->pt[0].offset; - vdma1.base_even = buf->pt[0].offset+(vdma1.pitch/2)*height; - vdma1.base_odd = vdma1.base_even - (vdma1.pitch/2); - } else { - vdma1.base_even = buf->pt[0].offset; - vdma1.base_odd = vdma1.base_even + (vdma1.pitch/2); - vdma1.prot_addr = buf->pt[0].offset+(vdma1.pitch/2)*height; - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - if ( vv->last_field == V4L2_FIELD_TOP ) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - - if( 0 != vv->vflip ) { - vdma1.pitch *= -1; - } - - saa7146_write_out_dma(dev, 1, &vdma1); - return 0; -} - -static int calc_planar_422(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3) -{ - int height = buf->fmt->height; - int width = buf->fmt->width; - - vdma2->pitch = width; - vdma3->pitch = width; - - /* fixme: look at bytesperline! */ - - if( 0 != vv->vflip ) { - vdma2->prot_addr = buf->pt[1].offset; - vdma2->base_even = ((vdma2->pitch/2)*height)+buf->pt[1].offset; - vdma2->base_odd = vdma2->base_even - (vdma2->pitch/2); - - vdma3->prot_addr = buf->pt[2].offset; - vdma3->base_even = ((vdma3->pitch/2)*height)+buf->pt[2].offset; - vdma3->base_odd = vdma3->base_even - (vdma3->pitch/2); - } else { - vdma3->base_even = buf->pt[2].offset; - vdma3->base_odd = vdma3->base_even + (vdma3->pitch/2); - vdma3->prot_addr = (vdma3->pitch/2)*height+buf->pt[2].offset; - - vdma2->base_even = buf->pt[1].offset; - vdma2->base_odd = vdma2->base_even + (vdma2->pitch/2); - vdma2->prot_addr = (vdma2->pitch/2)*height+buf->pt[1].offset; - } - - return 0; -} - -static int calc_planar_420(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3) -{ - int height = buf->fmt->height; - int width = buf->fmt->width; - - vdma2->pitch = width/2; - vdma3->pitch = width/2; - - if( 0 != vv->vflip ) { - vdma2->prot_addr = buf->pt[2].offset; - vdma2->base_even = ((vdma2->pitch/2)*height)+buf->pt[2].offset; - vdma2->base_odd = vdma2->base_even - (vdma2->pitch/2); - - vdma3->prot_addr = buf->pt[1].offset; - vdma3->base_even = ((vdma3->pitch/2)*height)+buf->pt[1].offset; - vdma3->base_odd = vdma3->base_even - (vdma3->pitch/2); - - } else { - vdma3->base_even = buf->pt[2].offset; - vdma3->base_odd = vdma3->base_even + (vdma3->pitch); - vdma3->prot_addr = (vdma3->pitch/2)*height+buf->pt[2].offset; - - vdma2->base_even = buf->pt[1].offset; - vdma2->base_odd = vdma2->base_even + (vdma2->pitch); - vdma2->prot_addr = (vdma2->pitch/2)*height+buf->pt[1].offset; - } - return 0; -} - -static int calculate_video_dma_grab_planar(struct saa7146_dev* dev, struct saa7146_buf *buf) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_video_dma vdma1; - struct saa7146_video_dma vdma2; - struct saa7146_video_dma vdma3; - - struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); - - int width = buf->fmt->width; - int height = buf->fmt->height; - enum v4l2_field field = buf->fmt->field; - - BUG_ON(0 == buf->pt[0].dma); - BUG_ON(0 == buf->pt[1].dma); - BUG_ON(0 == buf->pt[2].dma); - - DEB_CAP(("[size=%dx%d,fields=%s]\n", - width,height,v4l2_field_names[field])); - - /* fixme: look at bytesperline! */ - - /* fixme: what happens for user space buffers here?. The offsets are - most likely wrong, this version here only works for page-aligned - buffers, modifications to the pagetable-functions are necessary...*/ - - vdma1.pitch = width*2; - vdma1.num_line_byte = ((vv->standard->v_field<<16) + vv->standard->h_pixels); - vdma1.base_page = buf->pt[0].dma | ME1; - - if( 0 != vv->vflip ) { - vdma1.prot_addr = buf->pt[0].offset; - vdma1.base_even = ((vdma1.pitch/2)*height)+buf->pt[0].offset; - vdma1.base_odd = vdma1.base_even - (vdma1.pitch/2); - } else { - vdma1.base_even = buf->pt[0].offset; - vdma1.base_odd = vdma1.base_even + (vdma1.pitch/2); - vdma1.prot_addr = (vdma1.pitch/2)*height+buf->pt[0].offset; - } - - vdma2.num_line_byte = 0; /* unused */ - vdma2.base_page = buf->pt[1].dma | ME1; - - vdma3.num_line_byte = 0; /* unused */ - vdma3.base_page = buf->pt[2].dma | ME1; - - switch( sfmt->depth ) { - case 12: { - calc_planar_420(vv,buf,&vdma2,&vdma3); - break; - } - case 16: { - calc_planar_422(vv,buf,&vdma2,&vdma3); - break; - } - default: { - return -1; - } - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - vdma2.base_odd = vdma2.prot_addr; - vdma2.pitch /= 2; - vdma3.base_odd = vdma3.prot_addr; - vdma3.pitch /= 2; - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - vdma2.base_odd = vdma2.prot_addr; - vdma2.pitch /= 2; - vdma3.base_odd = vdma3.prot_addr; - vdma3.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - vdma2.base_odd = vdma2.base_even; - vdma2.base_even = vdma2.prot_addr; - vdma2.pitch /= 2; - vdma3.base_odd = vdma3.base_even; - vdma3.base_even = vdma3.prot_addr; - vdma3.pitch /= 2; - } - - if( 0 != vv->vflip ) { - vdma1.pitch *= -1; - vdma2.pitch *= -1; - vdma3.pitch *= -1; - } - - saa7146_write_out_dma(dev, 1, &vdma1); - if( (sfmt->flags & FORMAT_BYTE_SWAP) != 0 ) { - saa7146_write_out_dma(dev, 3, &vdma2); - saa7146_write_out_dma(dev, 2, &vdma3); - } else { - saa7146_write_out_dma(dev, 2, &vdma2); - saa7146_write_out_dma(dev, 3, &vdma3); - } - return 0; -} - -static void program_capture_engine(struct saa7146_dev *dev, int planar) -{ - struct saa7146_vv *vv = dev->vv_data; - int count = 0; - - unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B; - unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B; - - /* wait for o_fid_a/b / e_fid_a/b toggle only if rps register 0 is not set*/ - WRITE_RPS0(CMD_PAUSE | CMD_OAN | CMD_SIG0 | o_wait); - WRITE_RPS0(CMD_PAUSE | CMD_OAN | CMD_SIG0 | e_wait); - - /* set rps register 0 */ - WRITE_RPS0(CMD_WR_REG | (1 << 8) | (MC2/4)); - WRITE_RPS0(MASK_27 | MASK_11); - - /* turn on video-dma1 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_06 | MASK_22); /* => mask */ - WRITE_RPS0(MASK_06 | MASK_22); /* => values */ - if( 0 != planar ) { - /* turn on video-dma2 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_05 | MASK_21); /* => mask */ - WRITE_RPS0(MASK_05 | MASK_21); /* => values */ - - /* turn on video-dma3 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_04 | MASK_20); /* => mask */ - WRITE_RPS0(MASK_04 | MASK_20); /* => values */ - } - - /* wait for o_fid_a/b / e_fid_a/b toggle */ - if ( vv->last_field == V4L2_FIELD_INTERLACED ) { - WRITE_RPS0(CMD_PAUSE | o_wait); - WRITE_RPS0(CMD_PAUSE | e_wait); - } else if ( vv->last_field == V4L2_FIELD_TOP ) { - WRITE_RPS0(CMD_PAUSE | (vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? MASK_10 : MASK_09)); - WRITE_RPS0(CMD_PAUSE | o_wait); - } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) { - WRITE_RPS0(CMD_PAUSE | (vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? MASK_10 : MASK_09)); - WRITE_RPS0(CMD_PAUSE | e_wait); - } - - /* turn off video-dma1 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_22 | MASK_06); /* => mask */ - WRITE_RPS0(MASK_22); /* => values */ - if( 0 != planar ) { - /* turn off video-dma2 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_05 | MASK_21); /* => mask */ - WRITE_RPS0(MASK_21); /* => values */ - - /* turn off video-dma3 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_04 | MASK_20); /* => mask */ - WRITE_RPS0(MASK_20); /* => values */ - } - - /* generate interrupt */ - WRITE_RPS0(CMD_INTERRUPT); - - /* stop */ - WRITE_RPS0(CMD_STOP); -} - -void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) -{ - struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); - struct saa7146_vv *vv = dev->vv_data; - u32 vdma1_prot_addr; - - DEB_CAP(("buf:%p, next:%p\n",buf,next)); - - vdma1_prot_addr = saa7146_read(dev, PROT_ADDR1); - if( 0 == vdma1_prot_addr ) { - /* clear out beginning of streaming bit (rps register 0)*/ - DEB_CAP(("forcing sync to new frame\n")); - saa7146_write(dev, MC2, MASK_27 ); - } - - saa7146_set_window(dev, buf->fmt->width, buf->fmt->height, buf->fmt->field); - saa7146_set_output_format(dev, sfmt->trans); - saa7146_disable_clipping(dev); - - if ( vv->last_field == V4L2_FIELD_INTERLACED ) { - } else if ( vv->last_field == V4L2_FIELD_TOP ) { - vv->last_field = V4L2_FIELD_BOTTOM; - } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) { - vv->last_field = V4L2_FIELD_TOP; - } - - if( 0 != IS_PLANAR(sfmt->trans)) { - calculate_video_dma_grab_planar(dev, buf); - program_capture_engine(dev,1); - } else { - calculate_video_dma_grab_packed(dev, buf); - program_capture_engine(dev,0); - } - -/* - printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1)); - printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1)); - printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1)); - printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1)); - printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1)); - printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1)); - printk("vdma%d => vptr : 0x%08x\n", 1,saa7146_read(dev,PCI_VDP1)); -*/ - - /* write the address of the rps-program */ - saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle); - - /* turn on rps */ - saa7146_write(dev, MC1, (MASK_12 | MASK_28)); -} diff --git a/linux/drivers/media/video/saa7146/saa7146_i2c.c b/linux/drivers/media/video/saa7146/saa7146_i2c.c deleted file mode 100644 index a2447ff60..000000000 --- a/linux/drivers/media/video/saa7146/saa7146_i2c.c +++ /dev/null @@ -1,433 +0,0 @@ -#include <media/saa7146_vv.h> -#include "compat.h" - -static u32 saa7146_i2c_func(struct i2c_adapter *adapter) -{ -//fm DEB_I2C(("'%s'.\n", adapter->name)); - - return I2C_FUNC_I2C - | I2C_FUNC_SMBUS_QUICK - | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE - | I2C_FUNC_SMBUS_READ_BYTE_DATA | I2C_FUNC_SMBUS_WRITE_BYTE_DATA; -} - -/* this function returns the status-register of our i2c-device */ -static inline u32 saa7146_i2c_status(struct saa7146_dev *dev) -{ - u32 iicsta = saa7146_read(dev, I2C_STATUS); -/* - DEB_I2C(("status: 0x%08x\n",iicsta)); -*/ - return iicsta; -} - -/* this function runs through the i2c-messages and prepares the data to be - sent through the saa7146. have a look at the specifications p. 122 ff - to understand this. it returns the number of u32s to send, or -1 - in case of an error. */ -static int saa7146_i2c_msg_prepare(const struct i2c_msg *m, int num, u32 *op) -{ - int h1, h2; - int i, j, addr; - int mem = 0, op_count = 0; - - /* first determine size of needed memory */ - for(i = 0; i < num; i++) { - mem += m[i].len + 1; - } - - /* worst case: we need one u32 for three bytes to be send - plus one extra byte to address the device */ - mem = 1 + ((mem-1) / 3); - - /* we assume that op points to a memory of at least SAA7146_I2C_MEM bytes - size. if we exceed this limit... */ - if ( (4*mem) > SAA7146_I2C_MEM ) { -//fm DEB_I2C(("cannot prepare i2c-message.\n")); - return -ENOMEM; - } - - /* be careful: clear out the i2c-mem first */ - memset(op,0,sizeof(u32)*mem); - - /* loop through all messages */ - for(i = 0; i < num; i++) { - - /* insert the address of the i2c-slave. - note: we get 7 bit i2c-addresses, - so we have to perform a translation */ - addr = (m[i].addr*2) + ( (0 != (m[i].flags & I2C_M_RD)) ? 1 : 0); - h1 = op_count/3; h2 = op_count%3; - op[h1] |= ( (u8)addr << ((3-h2)*8)); - op[h1] |= (SAA7146_I2C_START << ((3-h2)*2)); - op_count++; - - /* loop through all bytes of message i */ - for(j = 0; j < m[i].len; j++) { - /* insert the data bytes */ - h1 = op_count/3; h2 = op_count%3; - op[h1] |= ( (u32)((u8)m[i].buf[j]) << ((3-h2)*8)); - op[h1] |= ( SAA7146_I2C_CONT << ((3-h2)*2)); - op_count++; - } - - } - - /* have a look at the last byte inserted: - if it was: ...CONT change it to ...STOP */ - h1 = (op_count-1)/3; h2 = (op_count-1)%3; - if ( SAA7146_I2C_CONT == (0x3 & (op[h1] >> ((3-h2)*2))) ) { - op[h1] &= ~(0x2 << ((3-h2)*2)); - op[h1] |= (SAA7146_I2C_STOP << ((3-h2)*2)); - } - - /* return the number of u32s to send */ - return mem; -} - -/* this functions loops through all i2c-messages. normally, it should determine - which bytes were read through the adapter and write them back to the corresponding - i2c-message. but instead, we simply write back all bytes. - fixme: this could be improved. */ -static int saa7146_i2c_msg_cleanup(const struct i2c_msg *m, int num, u32 *op) -{ - int i, j; - int op_count = 0; - - /* loop through all messages */ - for(i = 0; i < num; i++) { - - op_count++; - - /* loop throgh all bytes of message i */ - for(j = 0; j < m[i].len; j++) { - /* write back all bytes that could have been read */ - m[i].buf[j] = (op[op_count/3] >> ((3-(op_count%3))*8)); - op_count++; - } - } - - return 0; -} - -/* this functions resets the i2c-device and returns 0 if everything was fine, otherwise -1 */ -static int saa7146_i2c_reset(struct saa7146_dev *dev) -{ - /* get current status */ - u32 status = saa7146_i2c_status(dev); - - /* clear registers for sure */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, I2C_TRANSFER, 0); - - /* check if any operation is still in progress */ - if ( 0 != ( status & SAA7146_I2C_BUSY) ) { - - /* yes, kill ongoing operation */ - DEB_I2C(("busy_state detected.\n")); - - /* set "ABORT-OPERATION"-bit (bit 7)*/ - saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07)); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - - /* clear all error-bits pending; this is needed because p.123, note 1 */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - } - - /* check if any error is (still) present. (this can be necessary because p.123, note 1) */ - status = saa7146_i2c_status(dev); - - if ( dev->i2c_bitrate != status ) { - - DEB_I2C(("error_state detected. status:0x%08x\n",status)); - - /* Repeat the abort operation. This seems to be necessary - after serious protocol errors caused by e.g. the SAA7740 */ - saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07)); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - - /* clear all error-bits pending */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - - /* the data sheet says it might be necessary to clear the status - twice after an abort */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - } - - /* if any error is still present, a fatal error has occured ... */ - status = saa7146_i2c_status(dev); - if ( dev->i2c_bitrate != status ) { - DEB_I2C(("fatal error. status:0x%08x\n",status)); - return -1; - } - - return 0; -} - -/* this functions writes out the data-byte 'dword' to the i2c-device. - it returns 0 if ok, -1 if the transfer failed, -2 if the transfer - failed badly (e.g. address error) */ -static int saa7146_i2c_writeout(struct saa7146_dev *dev, u32* dword, int short_delay) -{ - u32 status = 0, mc2 = 0; - int trial = 0; - unsigned long timeout; - - /* write out i2c-command */ - DEB_I2C(("before: 0x%08x (status: 0x%08x), %d\n",*dword,saa7146_read(dev, I2C_STATUS), dev->i2c_op)); - - if( 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags)) { - - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, I2C_TRANSFER, *dword); - - dev->i2c_op = 1; - SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17); - SAA7146_IER_ENABLE(dev, MASK_16|MASK_17); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - - timeout = HZ/100 + 1; /* 10ms */ - timeout = wait_event_interruptible_timeout(dev->i2c_wq, dev->i2c_op == 0, timeout); - if (timeout == -ERESTARTSYS || dev->i2c_op) { - SAA7146_IER_DISABLE(dev, MASK_16|MASK_17); - SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17); - if (timeout == -ERESTARTSYS) - /* a signal arrived */ - return -ERESTARTSYS; - - printk(KERN_WARNING "%s %s [irq]: timed out waiting for end of xfer\n", - dev->name, __func__); - return -EIO; - } - status = saa7146_read(dev, I2C_STATUS); - } else { - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, I2C_TRANSFER, *dword); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - - /* do not poll for i2c-status before upload is complete */ - timeout = jiffies + HZ/100 + 1; /* 10ms */ - while(1) { - mc2 = (saa7146_read(dev, MC2) & 0x1); - if( 0 != mc2 ) { - break; - } - if (time_after(jiffies,timeout)) { - printk(KERN_WARNING "%s %s: timed out waiting for MC2\n", - dev->name, __func__); - return -EIO; - } - } - /* wait until we get a transfer done or error */ - timeout = jiffies + HZ/100 + 1; /* 10ms */ - /* first read usually delivers bogus results... */ - saa7146_i2c_status(dev); - while(1) { - status = saa7146_i2c_status(dev); - if ((status & 0x3) != 1) - break; - if (time_after(jiffies,timeout)) { - /* this is normal when probing the bus - * (no answer from nonexisistant device...) - */ - printk(KERN_WARNING "%s %s [poll]: timed out waiting for end of xfer\n", - dev->name, __func__); - return -EIO; - } - if (++trial < 50 && short_delay) - udelay(10); - else - msleep(1); - } - } - - /* give a detailed status report */ - if ( 0 != (status & (SAA7146_I2C_SPERR | SAA7146_I2C_APERR | - SAA7146_I2C_DTERR | SAA7146_I2C_DRERR | - SAA7146_I2C_AL | SAA7146_I2C_ERR | - SAA7146_I2C_BUSY)) ) { - - if ( 0 == (status & SAA7146_I2C_ERR) || - 0 == (status & SAA7146_I2C_BUSY) ) { - /* it may take some time until ERR goes high - ignore */ - DEB_I2C(("unexpected i2c status %04x\n", status)); - } - if( 0 != (status & SAA7146_I2C_SPERR) ) { - DEB_I2C(("error due to invalid start/stop condition.\n")); - } - if( 0 != (status & SAA7146_I2C_DTERR) ) { - DEB_I2C(("error in data transmission.\n")); - } - if( 0 != (status & SAA7146_I2C_DRERR) ) { - DEB_I2C(("error when receiving data.\n")); - } - if( 0 != (status & SAA7146_I2C_AL) ) { - DEB_I2C(("error because arbitration lost.\n")); - } - - /* we handle address-errors here */ - if( 0 != (status & SAA7146_I2C_APERR) ) { - DEB_I2C(("error in address phase.\n")); - return -EREMOTEIO; - } - - return -EIO; - } - - /* read back data, just in case we were reading ... */ - *dword = saa7146_read(dev, I2C_TRANSFER); - - DEB_I2C(("after: 0x%08x\n",*dword)); - return 0; -} - -static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *msgs, int num, int retries) -{ - int i = 0, count = 0; - u32* buffer = dev->d_i2c.cpu_addr; - int err = 0; - int address_err = 0; - int short_delay = 0; - - if (mutex_lock_interruptible(&dev->i2c_lock)) - return -ERESTARTSYS; - - for(i=0;i<num;i++) { - DEB_I2C(("msg:%d/%d\n",i+1,num)); - } - - /* prepare the message(s), get number of u32s to transfer */ - count = saa7146_i2c_msg_prepare(msgs, num, buffer); - if ( 0 > count ) { - err = -1; - goto out; - } - - if ( count > 3 || 0 != (SAA7146_I2C_SHORT_DELAY & dev->ext->flags) ) - short_delay = 1; - - do { - /* reset the i2c-device if necessary */ - err = saa7146_i2c_reset(dev); - if ( 0 > err ) { - DEB_I2C(("could not reset i2c-device.\n")); - goto out; - } - - /* write out the u32s one after another */ - for(i = 0; i < count; i++) { - err = saa7146_i2c_writeout(dev, &buffer[i], short_delay); - if ( 0 != err) { - /* this one is unsatisfying: some i2c slaves on some - dvb cards don't acknowledge correctly, so the saa7146 - thinks that an address error occured. in that case, the - transaction should be retrying, even if an address error - occured. analog saa7146 based cards extensively rely on - i2c address probing, however, and address errors indicate that a - device is really *not* there. retrying in that case - increases the time the device needs to probe greatly, so - it should be avoided. because of the fact, that only - analog based cards use irq based i2c transactions (for dvb - cards, this screwes up other interrupt sources), we bail out - completely for analog cards after an address error and trust - the saa7146 address error detection. */ - if ( -EREMOTEIO == err ) { - if( 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags)) { - goto out; - } - address_err++; - } - DEB_I2C(("error while sending message(s). starting again.\n")); - break; - } - } - if( 0 == err ) { - err = num; - break; - } - - /* delay a bit before retrying */ - msleep(10); - - } while (err != num && retries--); - - /* if every retry had an address error, exit right away */ - if (address_err == retries) { - goto out; - } - - /* if any things had to be read, get the results */ - if ( 0 != saa7146_i2c_msg_cleanup(msgs, num, buffer)) { - DEB_I2C(("could not cleanup i2c-message.\n")); - err = -1; - goto out; - } - - /* return the number of delivered messages */ - DEB_I2C(("transmission successful. (msg:%d).\n",err)); -out: - /* another bug in revision 0: the i2c-registers get uploaded randomly by other - uploads, so we better clear them out before continueing */ - if( 0 == dev->revision ) { - u32 zero = 0; - saa7146_i2c_reset(dev); - if( 0 != saa7146_i2c_writeout(dev, &zero, short_delay)) { - INFO(("revision 0 error. this should never happen.\n")); - } - } - - mutex_unlock(&dev->i2c_lock); - return err; -} - -/* utility functions */ -static int saa7146_i2c_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num) -{ - struct saa7146_dev* dev = i2c_get_adapdata(adapter); - - /* use helper function to transfer data */ - return saa7146_i2c_transfer(dev, msg, num, adapter->retries); -} - - -/*****************************************************************************/ -/* i2c-adapter helper functions */ -#include <linux/i2c-id.h> - -/* exported algorithm data */ -static struct i2c_algorithm saa7146_algo = { - .master_xfer = saa7146_i2c_xfer, - .functionality = saa7146_i2c_func, -}; - -int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate) -{ - DEB_EE(("bitrate: 0x%08x\n",bitrate)); - - /* enable i2c-port pins */ - saa7146_write(dev, MC1, (MASK_08 | MASK_24)); - - dev->i2c_bitrate = bitrate; - saa7146_i2c_reset(dev); - - if( NULL != i2c_adapter ) { - BUG_ON(!i2c_adapter->class); - i2c_set_adapdata(i2c_adapter,dev); - i2c_adapter->dev.parent = &dev->pci->dev; - i2c_adapter->algo = &saa7146_algo; - i2c_adapter->algo_data = NULL; - i2c_adapter->id = I2C_HW_SAA7146; - i2c_adapter->timeout = SAA7146_I2C_TIMEOUT; - i2c_adapter->retries = SAA7146_I2C_RETRIES; - } - - return 0; -} diff --git a/linux/drivers/media/video/saa7146/saa7146_vbi.c b/linux/drivers/media/video/saa7146/saa7146_vbi.c deleted file mode 100644 index 9a03df7fc..000000000 --- a/linux/drivers/media/video/saa7146/saa7146_vbi.c +++ /dev/null @@ -1,511 +0,0 @@ -#include <media/saa7146_vv.h> -#include "compat.h" - -static int vbi_pixel_to_capture = 720 * 2; - -static int vbi_workaround(struct saa7146_dev *dev) -{ - struct saa7146_vv *vv = dev->vv_data; - - u32 *cpu; - dma_addr_t dma_addr; - - int count = 0; - int i; - - DECLARE_WAITQUEUE(wait, current); - - DEB_VBI(("dev:%p\n",dev)); - - /* once again, a bug in the saa7146: the brs acquisition - is buggy and especially the BXO-counter does not work - as specified. there is this workaround, but please - don't let me explain it. ;-) */ - - cpu = pci_alloc_consistent(dev->pci, 4096, &dma_addr); - if (NULL == cpu) - return -ENOMEM; - - /* setup some basic programming, just for the workaround */ - saa7146_write(dev, BASE_EVEN3, dma_addr); - saa7146_write(dev, BASE_ODD3, dma_addr+vbi_pixel_to_capture); - saa7146_write(dev, PROT_ADDR3, dma_addr+4096); - saa7146_write(dev, PITCH3, vbi_pixel_to_capture); - saa7146_write(dev, BASE_PAGE3, 0x0); - saa7146_write(dev, NUM_LINE_BYTE3, (2<<16)|((vbi_pixel_to_capture)<<0)); - saa7146_write(dev, MC2, MASK_04|MASK_20); - - /* load brs-control register */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); - /* BXO = 1h, BRS to outbound */ - WRITE_RPS1(0xc000008c); - /* wait for vbi_a or vbi_b*/ - if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { - DEB_D(("...using port b\n")); - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_E_FID_B); - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_O_FID_B); -/* - WRITE_RPS1(CMD_PAUSE | MASK_09); -*/ - } else { - DEB_D(("...using port a\n")); - WRITE_RPS1(CMD_PAUSE | MASK_10); - } - /* upload brs */ - WRITE_RPS1(CMD_UPLOAD | MASK_08); - /* load brs-control register */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); - /* BYO = 1, BXO = NQBIL (=1728 for PAL, for NTSC this is 858*2) - NumByte3 (=1440) = 288 */ - WRITE_RPS1(((1728-(vbi_pixel_to_capture)) << 7) | MASK_19); - /* wait for brs_done */ - WRITE_RPS1(CMD_PAUSE | MASK_08); - /* upload brs */ - WRITE_RPS1(CMD_UPLOAD | MASK_08); - /* load video-dma3 NumLines3 and NumBytes3 */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (NUM_LINE_BYTE3/4)); - /* dev->vbi_count*2 lines, 720 pixel (= 1440 Bytes) */ - WRITE_RPS1((2 << 16) | (vbi_pixel_to_capture)); - /* load brs-control register */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); - /* Set BRS right: note: this is an experimental value for BXO (=> PAL!) */ - WRITE_RPS1((540 << 7) | (5 << 19)); // 5 == vbi_start - /* wait for brs_done */ - WRITE_RPS1(CMD_PAUSE | MASK_08); - /* upload brs and video-dma3*/ - WRITE_RPS1(CMD_UPLOAD | MASK_08 | MASK_04); - /* load mc2 register: enable dma3 */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC1/4)); - WRITE_RPS1(MASK_20 | MASK_04); - /* generate interrupt */ - WRITE_RPS1(CMD_INTERRUPT); - /* stop rps1 */ - WRITE_RPS1(CMD_STOP); - - /* we have to do the workaround twice to be sure that - everything is ok */ - for(i = 0; i < 2; i++) { - - /* indicate to the irq handler that we do the workaround */ - saa7146_write(dev, MC2, MASK_31|MASK_15); - - saa7146_write(dev, NUM_LINE_BYTE3, (1<<16)|(2<<0)); - saa7146_write(dev, MC2, MASK_04|MASK_20); - - /* enable rps1 irqs */ - SAA7146_IER_ENABLE(dev,MASK_28); - - /* prepare to wait to be woken up by the irq-handler */ - add_wait_queue(&vv->vbi_wq, &wait); - current->state = TASK_INTERRUPTIBLE; - - /* start rps1 to enable workaround */ - saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle); - saa7146_write(dev, MC1, (MASK_13 | MASK_29)); - - schedule(); - - DEB_VBI(("brs bug workaround %d/1.\n",i)); - - remove_wait_queue(&vv->vbi_wq, &wait); - current->state = TASK_RUNNING; - - /* disable rps1 irqs */ - SAA7146_IER_DISABLE(dev,MASK_28); - - /* stop video-dma3 */ - saa7146_write(dev, MC1, MASK_20); - - if(signal_pending(current)) { - - DEB_VBI(("aborted (rps:0x%08x).\n",saa7146_read(dev,RPS_ADDR1))); - - /* stop rps1 for sure */ - saa7146_write(dev, MC1, MASK_29); - - pci_free_consistent(dev->pci, 4096, cpu, dma_addr); - return -EINTR; - } - } - - pci_free_consistent(dev->pci, 4096, cpu, dma_addr); - return 0; -} - -static void saa7146_set_vbi_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) -{ - struct saa7146_vv *vv = dev->vv_data; - - struct saa7146_video_dma vdma3; - - int count = 0; - unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B; - unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B; - -/* - vdma3.base_even = 0xc8000000+2560*70; - vdma3.base_odd = 0xc8000000; - vdma3.prot_addr = 0xc8000000+2560*164; - vdma3.pitch = 2560; - vdma3.base_page = 0; - vdma3.num_line_byte = (64<<16)|((vbi_pixel_to_capture)<<0); // set above! -*/ - vdma3.base_even = buf->pt[2].offset; - vdma3.base_odd = buf->pt[2].offset + 16 * vbi_pixel_to_capture; - vdma3.prot_addr = buf->pt[2].offset + 16 * 2 * vbi_pixel_to_capture; - vdma3.pitch = vbi_pixel_to_capture; - vdma3.base_page = buf->pt[2].dma | ME1; - vdma3.num_line_byte = (16 << 16) | vbi_pixel_to_capture; - - saa7146_write_out_dma(dev, 3, &vdma3); - - /* write beginning of rps-program */ - count = 0; - - /* wait for o_fid_a/b / e_fid_a/b toggle only if bit 1 is not set */ - - /* we don't wait here for the first field anymore. this is different from the video - capture and might cause that the first buffer is only half filled (with only - one field). but since this is some sort of streaming data, this is not that negative. - but by doing this, we can use the whole engine from videobuf-dma-sg.c... */ - -/* - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | e_wait); - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | o_wait); -*/ - /* set bit 1 */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC2/4)); - WRITE_RPS1(MASK_28 | MASK_12); - - /* turn on video-dma3 */ - WRITE_RPS1(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS1(MASK_04 | MASK_20); /* => mask */ - WRITE_RPS1(MASK_04 | MASK_20); /* => values */ - - /* wait for o_fid_a/b / e_fid_a/b toggle */ - WRITE_RPS1(CMD_PAUSE | o_wait); - WRITE_RPS1(CMD_PAUSE | e_wait); - - /* generate interrupt */ - WRITE_RPS1(CMD_INTERRUPT); - - /* stop */ - WRITE_RPS1(CMD_STOP); - - /* enable rps1 irqs */ - SAA7146_IER_ENABLE(dev, MASK_28); - - /* write the address of the rps-program */ - saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle); - - /* turn on rps */ - saa7146_write(dev, MC1, (MASK_13 | MASK_29)); -} - -static int buffer_activate(struct saa7146_dev *dev, - struct saa7146_buf *buf, - struct saa7146_buf *next) -{ - struct saa7146_vv *vv = dev->vv_data; - buf->vb.state = VIDEOBUF_ACTIVE; - - DEB_VBI(("dev:%p, buf:%p, next:%p\n",dev,buf,next)); - saa7146_set_vbi_capture(dev,buf,next); - - mod_timer(&vv->vbi_q.timeout, jiffies+BUFFER_TIMEOUT); - return 0; -} - -static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - int err = 0; - int lines, llength, size; - - lines = 16 * 2 ; /* 2 fields */ - llength = vbi_pixel_to_capture; - size = lines * llength; - - DEB_VBI(("vb:%p\n",vb)); - - if (0 != buf->vb.baddr && buf->vb.bsize < size) { - DEB_VBI(("size mismatch.\n")); - return -EINVAL; - } - - if (buf->vb.size != size) - saa7146_dma_free(dev,q,buf); - - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - - buf->vb.width = llength; - buf->vb.height = lines; - buf->vb.size = size; - buf->vb.field = field; // FIXME: check this - - saa7146_pgtable_free(dev->pci, &buf->pt[2]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - - err = videobuf_iolock(q,&buf->vb, NULL); - if (err) - goto oops; - err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2], - dma->sglist, dma->sglen); - if (0 != err) - return err; - } - buf->vb.state = VIDEOBUF_PREPARED; - buf->activate = buffer_activate; - - return 0; - - oops: - DEB_VBI(("error out.\n")); - saa7146_dma_free(dev,q,buf); - - return err; -} - -static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) -{ - int llength,lines; - - lines = 16 * 2 ; /* 2 fields */ - llength = vbi_pixel_to_capture; - - *size = lines * llength; - *count = 2; - - DEB_VBI(("count:%d, size:%d\n",*count,*size)); - - return 0; -} - -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_VBI(("vb:%p\n",vb)); - saa7146_buffer_queue(dev,&vv->vbi_q,buf); -} - -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_VBI(("vb:%p\n",vb)); - saa7146_dma_free(dev,q,buf); -} - -static struct videobuf_queue_ops vbi_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; - -/* ------------------------------------------------------------------ */ - -static void vbi_stop(struct saa7146_fh *fh, struct file *file) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - unsigned long flags; - DEB_VBI(("dev:%p, fh:%p\n",dev, fh)); - - spin_lock_irqsave(&dev->slock,flags); - - /* disable rps1 */ - saa7146_write(dev, MC1, MASK_29); - - /* disable rps1 irqs */ - SAA7146_IER_DISABLE(dev, MASK_28); - - /* shut down dma 3 transfers */ - saa7146_write(dev, MC1, MASK_20); - - if (vv->vbi_q.curr) { - saa7146_buffer_finish(dev,&vv->vbi_q,VIDEOBUF_DONE); - } - - videobuf_queue_cancel(&fh->vbi_q); - - vv->vbi_streaming = NULL; - - del_timer(&vv->vbi_q.timeout); - del_timer(&fh->vbi_read_timeout); - - spin_unlock_irqrestore(&dev->slock, flags); -} - -static void vbi_read_timeout(unsigned long data) -{ - struct file *file = (struct file*)data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - - DEB_VBI(("dev:%p, fh:%p\n",dev, fh)); - - vbi_stop(fh, file); -} - -static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv) -{ - DEB_VBI(("dev:%p\n",dev)); - - INIT_LIST_HEAD(&vv->vbi_q.queue); - - init_timer(&vv->vbi_q.timeout); - vv->vbi_q.timeout.function = saa7146_buffer_timeout; - vv->vbi_q.timeout.data = (unsigned long)(&vv->vbi_q); - vv->vbi_q.dev = dev; - - init_waitqueue_head(&vv->vbi_wq); -} - -static int vbi_open(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; - - u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); - int ret = 0; - - DEB_VBI(("dev:%p, fh:%p\n",dev,fh)); - - ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS); - if (0 == ret) { - DEB_S(("cannot get vbi RESOURCE_DMA3_BRS resource\n")); - return -EBUSY; - } - - /* adjust arbitrition control for video dma 3 */ - arbtr_ctrl &= ~0x1f0000; - arbtr_ctrl |= 0x1d0000; - saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); - saa7146_write(dev, MC2, (MASK_04|MASK_20)); - - memset(&fh->vbi_fmt,0,sizeof(fh->vbi_fmt)); - - fh->vbi_fmt.sampling_rate = 27000000; - fh->vbi_fmt.offset = 248; /* todo */ - fh->vbi_fmt.samples_per_line = vbi_pixel_to_capture; - fh->vbi_fmt.sample_format = V4L2_PIX_FMT_GREY; - - /* fixme: this only works for PAL */ - fh->vbi_fmt.start[0] = 5; - fh->vbi_fmt.count[0] = 16; - fh->vbi_fmt.start[1] = 312; - fh->vbi_fmt.count[1] = 16; - - videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops, - &dev->pci->dev, &dev->slock, - V4L2_BUF_TYPE_VBI_CAPTURE, - V4L2_FIELD_SEQ_TB, // FIXME: does this really work? - sizeof(struct saa7146_buf), - file); - - init_timer(&fh->vbi_read_timeout); - fh->vbi_read_timeout.function = vbi_read_timeout; - fh->vbi_read_timeout.data = (unsigned long)file; - - /* initialize the brs */ - if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { - saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19)); - } else { - saa7146_write(dev, BRS_CTRL, 0x00000001); - - if (0 != (ret = vbi_workaround(dev))) { - DEB_VBI(("vbi workaround failed!\n")); - /* return ret;*/ - } - } - - /* upload brs register */ - saa7146_write(dev, MC2, (MASK_08|MASK_24)); - return 0; -} - -static void vbi_close(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; - struct saa7146_vv *vv = dev->vv_data; - DEB_VBI(("dev:%p, fh:%p\n",dev,fh)); - - if( fh == vv->vbi_streaming ) { - vbi_stop(fh, file); - } - saa7146_res_free(fh, RESOURCE_DMA3_BRS); -} - -static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status) -{ - struct saa7146_vv *vv = dev->vv_data; - spin_lock(&dev->slock); - - if (vv->vbi_q.curr) { - DEB_VBI(("dev:%p, curr:%p\n",dev,vv->vbi_q.curr)); - /* this must be += 2, one count for each field */ - vv->vbi_fieldcount+=2; - vv->vbi_q.curr->vb.field_count = vv->vbi_fieldcount; - saa7146_buffer_finish(dev,&vv->vbi_q,VIDEOBUF_DONE); - } else { - DEB_VBI(("dev:%p\n",dev)); - } - saa7146_buffer_next(dev,&vv->vbi_q,1); - - spin_unlock(&dev->slock); -} - -static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - ssize_t ret = 0; - - DEB_VBI(("dev:%p, fh:%p\n",dev,fh)); - - if( NULL == vv->vbi_streaming ) { - // fixme: check if dma3 is available - // fixme: activate vbi engine here if necessary. (really?) - vv->vbi_streaming = fh; - } - - if( fh != vv->vbi_streaming ) { - DEB_VBI(("open %p is already using vbi capture.",vv->vbi_streaming)); - return -EBUSY; - } - - mod_timer(&fh->vbi_read_timeout, jiffies+BUFFER_TIMEOUT); - ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1, - file->f_flags & O_NONBLOCK); -/* - printk("BASE_ODD3: 0x%08x\n", saa7146_read(dev, BASE_ODD3)); - printk("BASE_EVEN3: 0x%08x\n", saa7146_read(dev, BASE_EVEN3)); - printk("PROT_ADDR3: 0x%08x\n", saa7146_read(dev, PROT_ADDR3)); - printk("PITCH3: 0x%08x\n", saa7146_read(dev, PITCH3)); - printk("BASE_PAGE3: 0x%08x\n", saa7146_read(dev, BASE_PAGE3)); - printk("NUM_LINE_BYTE3: 0x%08x\n", saa7146_read(dev, NUM_LINE_BYTE3)); - printk("BRS_CTRL: 0x%08x\n", saa7146_read(dev, BRS_CTRL)); -*/ - return ret; -} - -struct saa7146_use_ops saa7146_vbi_uops = { - .init = vbi_init, - .open = vbi_open, - .release = vbi_close, - .irq_done = vbi_irq_done, - .read = vbi_read, -}; diff --git a/linux/drivers/media/video/saa7146/saa7146_video.c b/linux/drivers/media/video/saa7146/saa7146_video.c deleted file mode 100644 index b68c6288b..000000000 --- a/linux/drivers/media/video/saa7146/saa7146_video.c +++ /dev/null @@ -1,1509 +0,0 @@ -#include <media/saa7146_vv.h> -#include "compat.h" - -static int max_memory = 32; - -module_param(max_memory, int, 0644); -MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)"); - -#define IS_CAPTURE_ACTIVE(fh) \ - (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh)) - -#define IS_OVERLAY_ACTIVE(fh) \ - (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh)) - -/* format descriptions for capture and preview */ -static struct saa7146_format formats[] = { - { - .name = "RGB-8 (3-3-2)", - .pixelformat = V4L2_PIX_FMT_RGB332, - .trans = RGB08_COMPOSED, - .depth = 8, - .flags = 0, - }, { - .name = "RGB-16 (5/B-6/G-5/R)", - .pixelformat = V4L2_PIX_FMT_RGB565, - .trans = RGB16_COMPOSED, - .depth = 16, - .flags = 0, - }, { - .name = "RGB-24 (B-G-R)", - .pixelformat = V4L2_PIX_FMT_BGR24, - .trans = RGB24_COMPOSED, - .depth = 24, - .flags = 0, - }, { - .name = "RGB-32 (B-G-R)", - .pixelformat = V4L2_PIX_FMT_BGR32, - .trans = RGB32_COMPOSED, - .depth = 32, - .flags = 0, - }, { - .name = "RGB-32 (R-G-B)", - .pixelformat = V4L2_PIX_FMT_RGB32, - .trans = RGB32_COMPOSED, - .depth = 32, - .flags = 0, - .swap = 0x2, - }, { - .name = "Greyscale-8", - .pixelformat = V4L2_PIX_FMT_GREY, - .trans = Y8, - .depth = 8, - .flags = 0, - }, { - .name = "YUV 4:2:2 planar (Y-Cb-Cr)", - .pixelformat = V4L2_PIX_FMT_YUV422P, - .trans = YUV422_DECOMPOSED, - .depth = 16, - .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, - }, { - .name = "YVU 4:2:0 planar (Y-Cb-Cr)", - .pixelformat = V4L2_PIX_FMT_YVU420, - .trans = YUV420_DECOMPOSED, - .depth = 12, - .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, - }, { - .name = "YUV 4:2:0 planar (Y-Cb-Cr)", - .pixelformat = V4L2_PIX_FMT_YUV420, - .trans = YUV420_DECOMPOSED, - .depth = 12, - .flags = FORMAT_IS_PLANAR, - }, { - .name = "YUV 4:2:2 (U-Y-V-Y)", - .pixelformat = V4L2_PIX_FMT_UYVY, - .trans = YUV422_COMPOSED, - .depth = 16, - .flags = 0, - } -}; - -/* unfortunately, the saa7146 contains a bug which prevents it from doing on-the-fly byte swaps. - due to this, it's impossible to provide additional *packed* formats, which are simply byte swapped - (like V4L2_PIX_FMT_YUYV) ... 8-( */ - -static int NUM_FORMATS = sizeof(formats)/sizeof(struct saa7146_format); - -struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc) -{ - int i, j = NUM_FORMATS; - - for (i = 0; i < j; i++) { - if (formats[i].pixelformat == fourcc) { - return formats+i; - } - } - - DEB_D(("unknown pixelformat:'%4.4s'\n",(char *)&fourcc)); - return NULL; -} - -static int g_fmt(struct saa7146_fh *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = fh->dev; - DEB_EE(("dev:%p, fh:%p\n",dev,fh)); - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - f->fmt.pix = fh->video_fmt; - return 0; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - f->fmt.win = fh->ov.win; - return 0; - case V4L2_BUF_TYPE_VBI_CAPTURE: - { - f->fmt.vbi = fh->vbi_fmt; - return 0; - } - default: - DEB_D(("invalid format type '%d'.\n",f->type)); - return -EINVAL; - } -} - -static int try_win(struct saa7146_dev *dev, struct v4l2_window *win) -{ - struct saa7146_vv *vv = dev->vv_data; - enum v4l2_field field; - int maxw, maxh; - - DEB_EE(("dev:%p\n",dev)); - - if (NULL == vv->ov_fb.base) { - DEB_D(("no fb base set.\n")); - return -EINVAL; - } - if (NULL == vv->ov_fmt) { - DEB_D(("no fb fmt set.\n")); - return -EINVAL; - } - if (win->w.width < 48 || win->w.height < 32) { - DEB_D(("min width/height. (%d,%d)\n",win->w.width,win->w.height)); - return -EINVAL; - } - if (win->clipcount > 16) { - DEB_D(("clipcount too big.\n")); - return -EINVAL; - } - - field = win->field; - maxw = vv->standard->h_max_out; - maxh = vv->standard->v_max_out; - - if (V4L2_FIELD_ANY == field) { - field = (win->w.height > maxh/2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_TOP; - } - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_ALTERNATE: - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - break; - default: { - DEB_D(("no known field mode '%d'.\n",field)); - return -EINVAL; - } - } - - win->field = field; - if (win->w.width > maxw) - win->w.width = maxw; - if (win->w.height > maxh) - win->w.height = maxh; - - return 0; -} - -static int try_fmt(struct saa7146_fh *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - { - struct saa7146_format *fmt; - enum v4l2_field field; - int maxw, maxh; - int calc_bpl; - - DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n",dev,fh)); - - fmt = format_by_fourcc(dev,f->fmt.pix.pixelformat); - if (NULL == fmt) { - return -EINVAL; - } - - field = f->fmt.pix.field; - maxw = vv->standard->h_max_out; - maxh = vv->standard->v_max_out; - - if (V4L2_FIELD_ANY == field) { - field = (f->fmt.pix.height > maxh/2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_BOTTOM; - } - switch (field) { - case V4L2_FIELD_ALTERNATE: { - vv->last_field = V4L2_FIELD_TOP; - maxh = maxh / 2; - break; - } - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - vv->last_field = V4L2_FIELD_INTERLACED; - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - vv->last_field = V4L2_FIELD_INTERLACED; - break; - default: { - DEB_D(("no known field mode '%d'.\n",field)); - return -EINVAL; - } - } - - f->fmt.pix.field = field; - if (f->fmt.pix.width > maxw) - f->fmt.pix.width = maxw; - if (f->fmt.pix.height > maxh) - f->fmt.pix.height = maxh; - - calc_bpl = (f->fmt.pix.width * fmt->depth)/8; - - if (f->fmt.pix.bytesperline < calc_bpl) - f->fmt.pix.bytesperline = calc_bpl; - - if (f->fmt.pix.bytesperline > (2*PAGE_SIZE * fmt->depth)/8) /* arbitrary constraint */ - f->fmt.pix.bytesperline = calc_bpl; - - f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; - DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n",f->fmt.pix.width,f->fmt.pix.height,f->fmt.pix.bytesperline,f->fmt.pix.sizeimage)); - - return 0; - } - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n",dev,fh)); - err = try_win(dev,&f->fmt.win); - if (0 != err) { - return err; - } - return 0; - default: - DEB_EE(("unknown format type '%d'\n",f->type)); - return -EINVAL; - } -} - -int saa7146_start_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int ret = 0, err = 0; - - DEB_EE(("dev:%p, fh:%p\n",dev,fh)); - - /* check if we have overlay informations */ - if( NULL == fh->ov.fh ) { - DEB_D(("no overlay data available. try S_FMT first.\n")); - return -EAGAIN; - } - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D(("streaming capture is active.\n")); - return -EBUSY; - } - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh == fh) { - DEB_D(("overlay is already active.\n")); - return 0; - } - DEB_D(("overlay is already active in another open.\n")); - return -EBUSY; - } - - if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) { - DEB_D(("cannot get necessary overlay resources\n")); - return -EBUSY; - } - - err = try_win(dev,&fh->ov.win); - if (0 != err) { - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return -EBUSY; - } - - vv->ov_data = &fh->ov; - - DEB_D(("%dx%d+%d+%d %s field=%s\n", - fh->ov.win.w.width,fh->ov.win.w.height, - fh->ov.win.w.left,fh->ov.win.w.top, - vv->ov_fmt->name,v4l2_field_names[fh->ov.win.field])); - - if (0 != (ret = saa7146_enable_overlay(fh))) { - DEB_D(("enabling overlay failed: %d\n",ret)); - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return ret; - } - - vv->video_status = STATUS_OVERLAY; - vv->video_fh = fh; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_start_preview); - -int saa7146_stop_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE(("dev:%p, fh:%p\n",dev,fh)); - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D(("streaming capture is active.\n")); - return -EBUSY; - } - - /* check if overlay is running at all */ - if ((vv->video_status & STATUS_OVERLAY) == 0) { - DEB_D(("no active overlay.\n")); - return 0; - } - - if (vv->video_fh != fh) { - DEB_D(("overlay is active, but in another open.\n")); - return -EBUSY; - } - - vv->video_status = 0; - vv->video_fh = NULL; - - saa7146_disable_overlay(fh); - - saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_stop_preview); - -static int s_fmt(struct saa7146_fh *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - int err; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n",dev,fh)); - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_EE(("streaming capture is active\n")); - return -EBUSY; - } - err = try_fmt(fh,f); - if (0 != err) - return err; - fh->video_fmt = f->fmt.pix; - DEB_EE(("set to pixelformat '%4.4s'\n",(char *)&fh->video_fmt.pixelformat)); - return 0; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n",dev,fh)); - err = try_win(dev,&f->fmt.win); - if (0 != err) - return err; - mutex_lock(&dev->lock); - fh->ov.win = f->fmt.win; - fh->ov.nclips = f->fmt.win.clipcount; - if (fh->ov.nclips > 16) - fh->ov.nclips = 16; - if (copy_from_user(fh->ov.clips,f->fmt.win.clips,sizeof(struct v4l2_clip)*fh->ov.nclips)) { - mutex_unlock(&dev->lock); - return -EFAULT; - } - - /* fh->ov.fh is used to indicate that we have valid overlay informations, too */ - fh->ov.fh = fh; - - mutex_unlock(&dev->lock); - - /* check if our current overlay is active */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } - return 0; - default: - DEB_D(("unknown format type '%d'\n",f->type)); - return -EINVAL; - } -} - -/********************************************************************************/ -/* device controls */ - -static struct v4l2_queryctrl controls[] = { - { - .id = V4L2_CID_BRIGHTNESS, - .name = "Brightness", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 128, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_CONTRAST, - .name = "Contrast", - .minimum = 0, - .maximum = 127, - .step = 1, - .default_value = 64, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_SATURATION, - .name = "Saturation", - .minimum = 0, - .maximum = 127, - .step = 1, - .default_value = 64, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_VFLIP, - .name = "Vertical flip", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_HFLIP, - .name = "Horizontal flip", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - }, -}; -static int NUM_CONTROLS = sizeof(controls)/sizeof(struct v4l2_queryctrl); - -#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 0) - -static struct v4l2_queryctrl* ctrl_by_id(int id) -{ - int i; - - for (i = 0; i < NUM_CONTROLS; i++) - if (controls[i].id == id) - return controls+i; - return NULL; -} - -static int get_control(struct saa7146_fh *fh, struct v4l2_control *c) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - const struct v4l2_queryctrl* ctrl; - u32 value = 0; - - ctrl = ctrl_by_id(c->id); - if (NULL == ctrl) - return -EINVAL; - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - value = saa7146_read(dev, BCS_CTRL); - c->value = 0xff & (value >> 24); - DEB_D(("V4L2_CID_BRIGHTNESS: %d\n",c->value)); - break; - case V4L2_CID_CONTRAST: - value = saa7146_read(dev, BCS_CTRL); - c->value = 0x7f & (value >> 16); - DEB_D(("V4L2_CID_CONTRAST: %d\n",c->value)); - break; - case V4L2_CID_SATURATION: - value = saa7146_read(dev, BCS_CTRL); - c->value = 0x7f & (value >> 0); - DEB_D(("V4L2_CID_SATURATION: %d\n",c->value)); - break; - case V4L2_CID_VFLIP: - c->value = vv->vflip; - DEB_D(("V4L2_CID_VFLIP: %d\n",c->value)); - break; - case V4L2_CID_HFLIP: - c->value = vv->hflip; - DEB_D(("V4L2_CID_HFLIP: %d\n",c->value)); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int set_control(struct saa7146_fh *fh, struct v4l2_control *c) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - const struct v4l2_queryctrl* ctrl; - - ctrl = ctrl_by_id(c->id); - if (NULL == ctrl) { - DEB_D(("unknown control %d\n",c->id)); - return -EINVAL; - } - - mutex_lock(&dev->lock); - - switch (ctrl->type) { - case V4L2_CTRL_TYPE_BOOLEAN: - case V4L2_CTRL_TYPE_MENU: - case V4L2_CTRL_TYPE_INTEGER: - if (c->value < ctrl->minimum) - c->value = ctrl->minimum; - if (c->value > ctrl->maximum) - c->value = ctrl->maximum; - break; - default: - /* nothing */; - }; - - switch (c->id) { - case V4L2_CID_BRIGHTNESS: { - u32 value = saa7146_read(dev, BCS_CTRL); - value &= 0x00ffffff; - value |= (c->value << 24); - saa7146_write(dev, BCS_CTRL, value); - saa7146_write(dev, MC2, MASK_22 | MASK_06 ); - break; - } - case V4L2_CID_CONTRAST: { - u32 value = saa7146_read(dev, BCS_CTRL); - value &= 0xff00ffff; - value |= (c->value << 16); - saa7146_write(dev, BCS_CTRL, value); - saa7146_write(dev, MC2, MASK_22 | MASK_06 ); - break; - } - case V4L2_CID_SATURATION: { - u32 value = saa7146_read(dev, BCS_CTRL); - value &= 0xffffff00; - value |= (c->value << 0); - saa7146_write(dev, BCS_CTRL, value); - saa7146_write(dev, MC2, MASK_22 | MASK_06 ); - break; - } - case V4L2_CID_HFLIP: - /* fixme: we can support changing VFLIP and HFLIP here... */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D(("V4L2_CID_HFLIP while active capture.\n")); - mutex_unlock(&dev->lock); - return -EINVAL; - } - vv->hflip = c->value; - break; - case V4L2_CID_VFLIP: - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D(("V4L2_CID_VFLIP while active capture.\n")); - mutex_unlock(&dev->lock); - return -EINVAL; - } - vv->vflip = c->value; - break; - default: { - return -EINVAL; - } - } - mutex_unlock(&dev->lock); - - if (IS_OVERLAY_ACTIVE(fh) != 0) { - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } - return 0; -} - -/********************************************************************************/ -/* common pagetable functions */ - -static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf) -{ - struct pci_dev *pci = dev->pci; - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - struct scatterlist *list = dma->sglist; - int length = dma->sglen; - struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); - - DEB_EE(("dev:%p, buf:%p, sg_len:%d\n",dev,buf,length)); - - if( 0 != IS_PLANAR(sfmt->trans)) { - struct saa7146_pgtable *pt1 = &buf->pt[0]; - struct saa7146_pgtable *pt2 = &buf->pt[1]; - struct saa7146_pgtable *pt3 = &buf->pt[2]; - u32 *ptr1, *ptr2, *ptr3; - u32 fill; - - int size = buf->fmt->width*buf->fmt->height; - int i,p,m1,m2,m3,o1,o2; - - switch( sfmt->depth ) { - case 12: { - /* create some offsets inside the page table */ - m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; - m2 = ((size+(size/4)+PAGE_SIZE)/PAGE_SIZE)-1; - m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; - o1 = size%PAGE_SIZE; - o2 = (size+(size/4))%PAGE_SIZE; - DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2)); - break; - } - case 16: { - /* create some offsets inside the page table */ - m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; - m2 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; - m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1; - o1 = size%PAGE_SIZE; - o2 = (size+(size/2))%PAGE_SIZE; - DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2)); - break; - } - default: { - return -1; - } - } - - ptr1 = pt1->cpu; - ptr2 = pt2->cpu; - ptr3 = pt3->cpu; - - /* walk all pages, copy all page addresses to ptr1 */ - for (i = 0; i < length; i++, list++) { - for (p = 0; p * 4096 < list->length; p++, ptr1++) { - *ptr1 = cpu_to_le32(sg_dma_address(list) - list->offset); - } - } -/* - ptr1 = pt1->cpu; - for(j=0;j<40;j++) { - printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); - } -*/ - - /* if we have a user buffer, the first page may not be - aligned to a page boundary. */ - pt1->offset = list->offset; - pt2->offset = pt1->offset+o1; - pt3->offset = pt1->offset+o2; - - /* create video-dma2 page table */ - ptr1 = pt1->cpu; - for(i = m1; i <= m2 ; i++, ptr2++) { - *ptr2 = ptr1[i]; - } - fill = *(ptr2-1); - for(;i<1024;i++,ptr2++) { - *ptr2 = fill; - } - /* create video-dma3 page table */ - ptr1 = pt1->cpu; - for(i = m2; i <= m3; i++,ptr3++) { - *ptr3 = ptr1[i]; - } - fill = *(ptr3-1); - for(;i<1024;i++,ptr3++) { - *ptr3 = fill; - } - /* finally: finish up video-dma1 page table */ - ptr1 = pt1->cpu+m1; - fill = pt1->cpu[m1]; - for(i=m1;i<1024;i++,ptr1++) { - *ptr1 = fill; - } -/* - ptr1 = pt1->cpu; - ptr2 = pt2->cpu; - ptr3 = pt3->cpu; - for(j=0;j<40;j++) { - printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); - } - for(j=0;j<40;j++) { - printk("ptr2 %d: 0x%08x\n",j,ptr2[j]); - } - for(j=0;j<40;j++) { - printk("ptr3 %d: 0x%08x\n",j,ptr3[j]); - } -*/ - } else { - struct saa7146_pgtable *pt = &buf->pt[0]; - return saa7146_pgtable_build_single(pci, pt, list, length); - } - - return 0; -} - - -/********************************************************************************/ -/* file operations */ - -static int video_begin(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt = NULL; - unsigned int resource; - int ret = 0, err = 0; - - DEB_EE(("dev:%p, fh:%p\n",dev,fh)); - - if ((vv->video_status & STATUS_CAPTURE) != 0) { - if (vv->video_fh == fh) { - DEB_S(("already capturing.\n")); - return 0; - } - DEB_S(("already capturing in another open.\n")); - return -EBUSY; - } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { - DEB_S(("warning: suspending overlay video for streaming capture.\n")); - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D(("suspending video failed. aborting\n")); - return err; - } - } - - fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); - /* we need to have a valid format set here */ - BUG_ON(NULL == fmt); - - if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { - resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; - } else { - resource = RESOURCE_DMA1_HPS; - } - - ret = saa7146_res_get(fh, resource); - if (0 == ret) { - DEB_S(("cannot get capture resource %d\n",resource)); - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - return -EBUSY; - } - - /* clear out beginning of streaming bit (rps register 0)*/ - saa7146_write(dev, MC2, MASK_27 ); - - /* enable rps0 irqs */ - SAA7146_IER_ENABLE(dev, MASK_27); - - vv->video_fh = fh; - vv->video_status = STATUS_CAPTURE; - - return 0; -} - -static int video_end(struct saa7146_fh *fh, struct file *file) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt = NULL; - unsigned long flags; - unsigned int resource; - u32 dmas = 0; - DEB_EE(("dev:%p, fh:%p\n",dev,fh)); - - if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { - DEB_S(("not capturing.\n")); - return 0; - } - - if (vv->video_fh != fh) { - DEB_S(("capturing, but in another open.\n")); - return -EBUSY; - } - - fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); - /* we need to have a valid format set here */ - BUG_ON(NULL == fmt); - - if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { - resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; - dmas = MASK_22 | MASK_21 | MASK_20; - } else { - resource = RESOURCE_DMA1_HPS; - dmas = MASK_22; - } - spin_lock_irqsave(&dev->slock,flags); - - /* disable rps0 */ - saa7146_write(dev, MC1, MASK_28); - - /* disable rps0 irqs */ - SAA7146_IER_DISABLE(dev, MASK_27); - - /* shut down all used video dma transfers */ - saa7146_write(dev, MC1, dmas); - - spin_unlock_irqrestore(&dev->slock, flags); - - vv->video_fh = NULL; - vv->video_status = 0; - - saa7146_res_free(fh, resource); - - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - return 0; -} - -/* - * This function is _not_ called directly, but from - * video_generic_ioctl (and maybe others). userspace - * copying is done already, arg is a kernel pointer. - */ - -int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - int err = 0, result = 0, ee = 0; - - struct saa7146_use_ops *ops; - struct videobuf_queue *q; - - /* check if extension handles the command */ - for(ee = 0; dev->ext_vv_data->ioctls[ee].flags != 0; ee++) { - if( cmd == dev->ext_vv_data->ioctls[ee].cmd ) - break; - } - - if( 0 != (dev->ext_vv_data->ioctls[ee].flags & SAA7146_EXCLUSIVE) ) { - DEB_D(("extension handles ioctl exclusive.\n")); - result = dev->ext_vv_data->ioctl(fh, cmd, arg); - return result; - } - if( 0 != (dev->ext_vv_data->ioctls[ee].flags & SAA7146_BEFORE) ) { - DEB_D(("extension handles ioctl before.\n")); - result = dev->ext_vv_data->ioctl(fh, cmd, arg); - if( -EAGAIN != result ) { - return result; - } - } - - /* fixme: add handle "after" case (is it still needed?) */ - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: { - ops = &saa7146_video_uops; - q = &fh->video_q; - break; - } - case V4L2_BUF_TYPE_VBI_CAPTURE: { - ops = &saa7146_vbi_uops; - q = &fh->vbi_q; - break; - } - default: - BUG(); - return 0; - } - - switch (cmd) { - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = arg; - memset(cap,0,sizeof(*cap)); - - DEB_EE(("VIDIOC_QUERYCAP\n")); - - strcpy((char *)cap->driver, "saa7146 v4l2"); - strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card)); - sprintf((char *)cap->bus_info,"PCI:%s", pci_name(dev->pci)); - cap->version = SAA7146_VERSION_CODE; - cap->capabilities = - V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_VIDEO_OVERLAY | - V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING; - cap->capabilities |= dev->ext_vv_data->capabilities; - return 0; - } - case VIDIOC_G_FBUF: - { - struct v4l2_framebuffer *fb = arg; - - DEB_EE(("VIDIOC_G_FBUF\n")); - - *fb = vv->ov_fb; - fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; - return 0; - } - case VIDIOC_S_FBUF: - { - struct v4l2_framebuffer *fb = arg; - struct saa7146_format *fmt; - - DEB_EE(("VIDIOC_S_FBUF\n")); - - if(!capable(CAP_SYS_ADMIN) && - !capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* check args */ - fmt = format_by_fourcc(dev,fb->fmt.pixelformat); - if (NULL == fmt) { - return -EINVAL; - } - - /* planar formats are not allowed for overlay video, clipping and video dma would clash */ - if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { - DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n",(char *)&fmt->pixelformat)); - } - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh != fh) { - DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n")); - return -EBUSY; - } - } - - mutex_lock(&dev->lock); - - /* ok, accept it */ - vv->ov_fb = *fb; - vv->ov_fmt = fmt; - if (0 == vv->ov_fb.fmt.bytesperline) - vv->ov_fb.fmt.bytesperline = - vv->ov_fb.fmt.width*fmt->depth/8; - - mutex_unlock(&dev->lock); - - return 0; - } - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *f = arg; - int index; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OVERLAY: { - index = f->index; - if (index < 0 || index >= NUM_FORMATS) { - return -EINVAL; - } - memset(f,0,sizeof(*f)); - f->index = index; - strlcpy((char *)f->description,formats[index].name,sizeof(f->description)); - f->pixelformat = formats[index].pixelformat; - break; - } - default: - return -EINVAL; - } - - DEB_EE(("VIDIOC_ENUM_FMT: type:%d, index:%d\n",f->type,f->index)); - return 0; - } - case VIDIOC_QUERYCTRL: - { - const struct v4l2_queryctrl *ctrl; - struct v4l2_queryctrl *c = arg; - - if ((c->id < V4L2_CID_BASE || - c->id >= V4L2_CID_LASTP1) && - (c->id < V4L2_CID_PRIVATE_BASE || - c->id >= V4L2_CID_PRIVATE_LASTP1)) - return -EINVAL; - - ctrl = ctrl_by_id(c->id); - if( NULL == ctrl ) { - return -EINVAL; -/* - c->flags = V4L2_CTRL_FLAG_DISABLED; - return 0; -*/ - } - - DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n",c->id)); - *c = *ctrl; - return 0; - } - case VIDIOC_G_CTRL: { - DEB_EE(("VIDIOC_G_CTRL\n")); - return get_control(fh,arg); - } - case VIDIOC_S_CTRL: - { - DEB_EE(("VIDIOC_S_CTRL\n")); - err = set_control(fh,arg); - return err; - } - case VIDIOC_G_PARM: - { - struct v4l2_streamparm *parm = arg; - if( parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ) { - return -EINVAL; - } - memset(&parm->parm.capture,0,sizeof(struct v4l2_captureparm)); - parm->parm.capture.readbuffers = 1; - // fixme: only for PAL! - parm->parm.capture.timeperframe.numerator = 1; - parm->parm.capture.timeperframe.denominator = 25; - return 0; - } - case VIDIOC_G_FMT: - { - struct v4l2_format *f = arg; - DEB_EE(("VIDIOC_G_FMT\n")); - return g_fmt(fh,f); - } - case VIDIOC_S_FMT: - { - struct v4l2_format *f = arg; - DEB_EE(("VIDIOC_S_FMT\n")); - return s_fmt(fh,f); - } - case VIDIOC_TRY_FMT: - { - struct v4l2_format *f = arg; - DEB_EE(("VIDIOC_TRY_FMT\n")); - return try_fmt(fh,f); - } - case VIDIOC_G_STD: - { - v4l2_std_id *id = arg; - DEB_EE(("VIDIOC_G_STD\n")); - *id = vv->standard->id; - return 0; - } - /* the saa7146 supfhrts (used in conjunction with the saa7111a for example) - PAL / NTSC / SECAM. if your hardware does not (or does more) - -- override this function in your extension */ - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *e = arg; - if (e->index < 0 ) - return -EINVAL; - if( e->index < dev->ext_vv_data->num_stds ) { - DEB_EE(("VIDIOC_ENUMSTD: index:%d\n",e->index)); - v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name); - return 0; - } - return -EINVAL; - } - case VIDIOC_S_STD: - { - v4l2_std_id *id = arg; - int found = 0; - int i, err; - - DEB_EE(("VIDIOC_S_STD\n")); - - if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) { - DEB_D(("cannot change video standard while streaming capture is active\n")); - return -EBUSY; - } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D(("suspending video failed. aborting\n")); - return err; - } - } - - mutex_lock(&dev->lock); - - for(i = 0; i < dev->ext_vv_data->num_stds; i++) - if (*id & dev->ext_vv_data->stds[i].id) - break; - if (i != dev->ext_vv_data->num_stds) { - vv->standard = &dev->ext_vv_data->stds[i]; - if( NULL != dev->ext_vv_data->std_callback ) - dev->ext_vv_data->std_callback(dev, vv->standard); - found = 1; - } - - mutex_unlock(&dev->lock); - - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - if( 0 == found ) { - DEB_EE(("VIDIOC_S_STD: standard not found.\n")); - return -EINVAL; - } - - DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n",vv->standard->name)); - return 0; - } - case VIDIOC_OVERLAY: - { - int on = *(int *)arg; - int err = 0; - - DEB_D(("VIDIOC_OVERLAY on:%d\n",on)); - if (on != 0) { - err = saa7146_start_preview(fh); - } else { - err = saa7146_stop_preview(fh); - } - return err; - } - case VIDIOC_REQBUFS: { - struct v4l2_requestbuffers *req = arg; - DEB_D(("VIDIOC_REQBUFS, type:%d\n",req->type)); - return videobuf_reqbufs(q,req); - } - case VIDIOC_QUERYBUF: { - struct v4l2_buffer *buf = arg; - DEB_D(("VIDIOC_QUERYBUF, type:%d, offset:%d\n",buf->type,buf->m.offset)); - return videobuf_querybuf(q,buf); - } - case VIDIOC_QBUF: { - struct v4l2_buffer *buf = arg; - int ret = 0; - ret = videobuf_qbuf(q,buf); - DEB_D(("VIDIOC_QBUF: ret:%d, index:%d\n",ret,buf->index)); - return ret; - } - case VIDIOC_DQBUF: { - struct v4l2_buffer *buf = arg; - int ret = 0; - ret = videobuf_dqbuf(q,buf,file->f_flags & O_NONBLOCK); - DEB_D(("VIDIOC_DQBUF: ret:%d, index:%d\n",ret,buf->index)); - return ret; - } - case VIDIOC_STREAMON: { - int *type = arg; - DEB_D(("VIDIOC_STREAMON, type:%d\n",*type)); - - err = video_begin(fh); - if( 0 != err) { - return err; - } - err = videobuf_streamon(q); - return err; - } - case VIDIOC_STREAMOFF: { - int *type = arg; - - DEB_D(("VIDIOC_STREAMOFF, type:%d\n",*type)); - - /* ugly: we need to copy some checks from video_end(), - because videobuf_streamoff() relies on the capture running. - check and fix this */ - if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { - DEB_S(("not capturing.\n")); - return 0; - } - - if (vv->video_fh != fh) { - DEB_S(("capturing, but in another open.\n")); - return -EBUSY; - } - - err = videobuf_streamoff(q); - if (0 != err) { - DEB_D(("warning: videobuf_streamoff() failed.\n")); - video_end(fh, file); - } else { - err = video_end(fh, file); - } - return err; - } -#ifdef CONFIG_VIDEO_V4L1_COMPAT - case VIDIOCGMBUF: - { - struct video_mbuf *mbuf = arg; - struct videobuf_queue *q; - int i; - - /* fixme: number of capture buffers and sizes for v4l apps */ - int gbuffers = 2; - int gbufsize = 768*576*4; - - DEB_D(("VIDIOCGMBUF \n")); - - q = &fh->video_q; - err = videobuf_mmap_setup(q,gbuffers,gbufsize, - V4L2_MEMORY_MMAP); - if (err < 0) - return err; - - gbuffers = err; - memset(mbuf,0,sizeof(*mbuf)); - mbuf->frames = gbuffers; - mbuf->size = gbuffers * gbufsize; - for (i = 0; i < gbuffers; i++) - mbuf->offsets[i] = i * gbufsize; - return 0; - } -#endif - default: - return v4l_compat_translate_ioctl(inode,file,cmd,arg, - saa7146_video_do_ioctl); - } - return 0; -} - -/*********************************************************************************/ -/* buffer handling functions */ - -static int buffer_activate (struct saa7146_dev *dev, - struct saa7146_buf *buf, - struct saa7146_buf *next) -{ - struct saa7146_vv *vv = dev->vv_data; - - buf->vb.state = VIDEOBUF_ACTIVE; - saa7146_set_capture(dev,buf,next); - - mod_timer(&vv->video_q.timeout, jiffies+BUFFER_TIMEOUT); - return 0; -} - -static int buffer_prepare(struct videobuf_queue *q, - struct videobuf_buffer *vb, enum v4l2_field field) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - int size,err = 0; - - DEB_CAP(("vbuf:%p\n",vb)); - - /* sanity checks */ - if (fh->video_fmt.width < 48 || - fh->video_fmt.height < 32 || - fh->video_fmt.width > vv->standard->h_max_out || - fh->video_fmt.height > vv->standard->v_max_out) { - DEB_D(("w (%d) / h (%d) out of bounds.\n",fh->video_fmt.width,fh->video_fmt.height)); - return -EINVAL; - } - - size = fh->video_fmt.sizeimage; - if (0 != buf->vb.baddr && buf->vb.bsize < size) { - DEB_D(("size mismatch.\n")); - return -EINVAL; - } - - DEB_CAP(("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n", - fh->video_fmt.width,fh->video_fmt.height,size,v4l2_field_names[fh->video_fmt.field])); - if (buf->vb.width != fh->video_fmt.width || - buf->vb.bytesperline != fh->video_fmt.bytesperline || - buf->vb.height != fh->video_fmt.height || - buf->vb.size != size || - buf->vb.field != field || - buf->vb.field != fh->video_fmt.field || - buf->fmt != &fh->video_fmt) { - saa7146_dma_free(dev,q,buf); - } - - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - struct saa7146_format *sfmt; - - buf->vb.bytesperline = fh->video_fmt.bytesperline; - buf->vb.width = fh->video_fmt.width; - buf->vb.height = fh->video_fmt.height; - buf->vb.size = size; - buf->vb.field = field; - buf->fmt = &fh->video_fmt; - buf->vb.field = fh->video_fmt.field; - - sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); - - if( 0 != IS_PLANAR(sfmt->trans)) { - saa7146_pgtable_free(dev->pci, &buf->pt[0]); - saa7146_pgtable_free(dev->pci, &buf->pt[1]); - saa7146_pgtable_free(dev->pci, &buf->pt[2]); - - saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - } else { - saa7146_pgtable_free(dev->pci, &buf->pt[0]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); - } - - err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); - if (err) - goto oops; - err = saa7146_pgtable_build(dev,buf); - if (err) - goto oops; - } - buf->vb.state = VIDEOBUF_PREPARED; - buf->activate = buffer_activate; - - return 0; - - oops: - DEB_D(("error out.\n")); - saa7146_dma_free(dev,q,buf); - - return err; -} - -static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - - if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS) - *count = MAX_SAA7146_CAPTURE_BUFFERS; - - *size = fh->video_fmt.sizeimage; - - /* check if we exceed the "max_memory" parameter */ - if( (*count * *size) > (max_memory*1048576) ) { - *count = (max_memory*1048576) / *size; - } - - DEB_CAP(("%d buffers, %d bytes each.\n",*count,*size)); - - return 0; -} - -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_CAP(("vbuf:%p\n",vb)); - saa7146_buffer_queue(fh->dev,&vv->video_q,buf); -} - -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_CAP(("vbuf:%p\n",vb)); - saa7146_dma_free(dev,q,buf); -} - -static struct videobuf_queue_ops video_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; - -/********************************************************************************/ -/* file operations */ - -static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv) -{ - INIT_LIST_HEAD(&vv->video_q.queue); - - init_timer(&vv->video_q.timeout); - vv->video_q.timeout.function = saa7146_buffer_timeout; - vv->video_q.timeout.data = (unsigned long)(&vv->video_q); - vv->video_q.dev = dev; - - /* set some default values */ - vv->standard = &dev->ext_vv_data->stds[0]; - - /* FIXME: what's this? */ - vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A; - vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A; -} - - -static int video_open(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; - struct saa7146_format *sfmt; - - fh->video_fmt.width = 384; - fh->video_fmt.height = 288; - fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24; - fh->video_fmt.bytesperline = 0; - fh->video_fmt.field = V4L2_FIELD_ANY; - sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); - fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8; - - videobuf_queue_sg_init(&fh->video_q, &video_qops, - &dev->pci->dev, &dev->slock, - V4L2_BUF_TYPE_VIDEO_CAPTURE, - V4L2_FIELD_INTERLACED, - sizeof(struct saa7146_buf), - file); - - return 0; -} - - -static void video_close(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; - struct saa7146_vv *vv = dev->vv_data; - struct videobuf_queue *q = &fh->video_q; - int err; - - if (IS_CAPTURE_ACTIVE(fh) != 0) { - err = video_end(fh, file); - } else if (IS_OVERLAY_ACTIVE(fh) != 0) { - err = saa7146_stop_preview(fh); - } - - videobuf_stop(q); - - /* hmm, why is this function declared void? */ - /* return err */ -} - - -static void video_irq_done(struct saa7146_dev *dev, unsigned long st) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_dmaqueue *q = &vv->video_q; - - spin_lock(&dev->slock); - DEB_CAP(("called.\n")); - - /* only finish the buffer if we have one... */ - if( NULL != q->curr ) { - saa7146_buffer_finish(dev,q,VIDEOBUF_DONE); - } - saa7146_buffer_next(dev,q,0); - - spin_unlock(&dev->slock); -} - -static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - ssize_t ret = 0; - - DEB_EE(("called.\n")); - - if ((vv->video_status & STATUS_CAPTURE) != 0) { - /* fixme: should we allow read() captures while streaming capture? */ - if (vv->video_fh == fh) { - DEB_S(("already capturing.\n")); - return -EBUSY; - } - DEB_S(("already capturing in another open.\n")); - return -EBUSY; - } - - ret = video_begin(fh); - if( 0 != ret) { - goto out; - } - - ret = videobuf_read_one(&fh->video_q , data, count, ppos, - file->f_flags & O_NONBLOCK); - if (ret != 0) { - video_end(fh, file); - } else { - ret = video_end(fh, file); - } -out: - /* restart overlay if it was active before */ - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - return ret; -} - -struct saa7146_use_ops saa7146_video_uops = { - .init = video_init, - .open = video_open, - .release = video_close, - .irq_done = video_irq_done, - .read = video_read, -}; |