diff options
Diffstat (limited to 'linux/drivers/media/video/cx18/cx18-driver.c')
| -rw-r--r-- | linux/drivers/media/video/cx18/cx18-driver.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/linux/drivers/media/video/cx18/cx18-driver.c b/linux/drivers/media/video/cx18/cx18-driver.c index 3419de9a5..4de7b501f 100644 --- a/linux/drivers/media/video/cx18/cx18-driver.c +++ b/linux/drivers/media/video/cx18/cx18-driver.c @@ -4,6 +4,7 @@ * Derived from ivtv-driver.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * 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 @@ -22,6 +23,7 @@ */ #include "cx18-driver.h" +#include "cx18-io.h" #include "cx18-version.h" #include "cx18-cards.h" #include "cx18-i2c.h" @@ -73,10 +75,14 @@ static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; - +static int mmio_ndelay[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1 }; static unsigned cardtype_c = 1; static unsigned tuner_c = 1; static unsigned radio_c = 1; +static unsigned mmio_ndelay_c = 1; static char pal[] = "--"; static char secam[] = "--"; static char ntsc[] = "-"; @@ -95,6 +101,7 @@ int cx18_debug; module_param_array(tuner, int, &tuner_c, 0644); module_param_array(radio, bool, &radio_c, 0644); module_param_array(cardtype, int, &cardtype_c, 0644); +module_param_array(mmio_ndelay, int, &mmio_ndelay_c, 0644); module_param_string(pal, pal, sizeof(pal), 0644); module_param_string(secam, secam, sizeof(secam), 0644); module_param_string(ntsc, ntsc, sizeof(ntsc), 0644); @@ -140,6 +147,11 @@ MODULE_PARM_DESC(debug, MODULE_PARM_DESC(cx18_pci_latency, "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n" "\t\t\tDefault: Yes"); +MODULE_PARM_DESC(mmio_ndelay, + "Delay (ns) for each CX23418 memory mapped IO access.\n" + "\t\t\tTry larger values that are close to a multiple of the\n" + "\t\t\tPCI clock period, 30.3 ns, if your card doesn't work.\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_MMIO_NDELAY)); MODULE_PARM_DESC(enc_mpg_buffers, "Encoder MPG Buffers (in MB)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS)); @@ -356,6 +368,11 @@ static void cx18_process_options(struct cx18 *cx) cx->options.tuner = tuner[cx->num]; cx->options.radio = radio[cx->num]; + if (mmio_ndelay[cx->num] < 0) + cx->options.mmio_ndelay = CX18_DEFAULT_MMIO_NDELAY; + else + cx->options.mmio_ndelay = mmio_ndelay[cx->num]; + cx->std = cx18_parse_std(cx); if (cx->options.cardtype == -1) { CX18_INFO("Ignore card\n"); @@ -511,9 +528,9 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev, return -EIO; } - /* Check for bus mastering */ + /* Enable bus mastering and memory mapped IO for the CX23418 */ pci_read_config_word(dev, PCI_COMMAND, &cmd); - cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; + cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; pci_write_config_word(dev, PCI_COMMAND, cmd); pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev); @@ -525,11 +542,6 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev, pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64); pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency); } - /* This config space value relates to DMA latencies. The - default value 0x8080 is too low however and will lead - to DMA errors. 0xffff is the max value which solves - these problems. */ - pci_write_config_dword(dev, 0x40, 0xffff); CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, " "irq: %d, latency: %d, memory: 0x%lx\n", @@ -656,7 +668,7 @@ static int __devinit cx18_probe(struct pci_dev *dev, goto free_mem; } cx->reg_mem = cx->enc_mem + CX18_REG_OFFSET; - devtype = read_reg(0xC72028); + devtype = cx18_read_reg(cx, 0xC72028); switch (devtype & 0xff000000) { case 0xff000000: CX18_INFO("cx23418 revision %08x (A)\n", devtype); @@ -902,8 +914,8 @@ static void cx18_remove(struct pci_dev *pci_dev) cx18_stop_all_captures(cx); /* Interrupts */ - sw1_irq_disable(IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU); - sw2_irq_disable(IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK); + cx18_sw1_irq_disable(cx, IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU); + cx18_sw2_irq_disable(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK); cx18_halt_firmware(cx); |