From e43ba95be5ac0fe8418aba4306208274c734dd30 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:53:05 +0200 Subject: ARM: update pcm990-baseboard.c to match mainline Signed-off-by: Guennadi Liakhovetski kernel-sync: --- linux/arch/arm/mach-pxa/pcm990-baseboard.c | 31 +++--------------------------- 1 file changed, 3 insertions(+), 28 deletions(-) diff --git a/linux/arch/arm/mach-pxa/pcm990-baseboard.c b/linux/arch/arm/mach-pxa/pcm990-baseboard.c index 7a95c80ab..6c12b5a31 100644 --- a/linux/arch/arm/mach-pxa/pcm990-baseboard.c +++ b/linux/arch/arm/mach-pxa/pcm990-baseboard.c @@ -22,46 +22,21 @@ #include #include -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27) -#include -#endif #include #include #include #include -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27) -#include -#include -#else #include #include -#endif #include -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27) -#include -#include -#include -#include -#include -#include -#include -#else -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 30) -#include -#else #include -#endif #include #include #include #include #include -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 30) -#include -#endif -#endif #include "devices.h" #include "generic.h" @@ -402,7 +377,7 @@ struct pxacamera_platform_data pcm990_pxacamera_platform_data = { #include static struct pca953x_platform_data pca9536_data = { - .gpio_base = NR_BUILTIN_GPIO + 1, + .gpio_base = NR_BUILTIN_GPIO, }; static int gpio_bus_switch; @@ -430,9 +405,9 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link) int ret; if (!gpio_bus_switch) { - ret = gpio_request(NR_BUILTIN_GPIO + 1, "camera"); + ret = gpio_request(NR_BUILTIN_GPIO, "camera"); if (!ret) { - gpio_bus_switch = NR_BUILTIN_GPIO + 1; + gpio_bus_switch = NR_BUILTIN_GPIO; gpio_direction_output(gpio_bus_switch, 0); } else gpio_bus_switch = -EINVAL; -- cgit v1.2.3 From 4958205a8529a672cec383a02fa7d7c53c12ff0d Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:53:51 +0200 Subject: soc-camera: add a free_bus method to struct soc_camera_link From: Guennadi Liakhovetski Currently pcm990 camera bus-width management functions request a GPIO and never free it again. With this approach the GPIO extender driver cannot be unloaded once camera drivers have been loaded, also unloading theb i2c-pxa bus driver produces errors, because the GPIO extender driver cannot unregister properly. Another problem is, that if camera drivers are once loaded before the GPIO extender driver, the platform code marks the GPIO unavailable and only a reboot helps to recover. Adding an explicit free_bus method and using it in mt9m001 and mt9v022 drivers fixes these problems. Signed-off-by: Guennadi Liakhovetski Acked-by: Eric Miao --- arch/arm/mach-pxa/pcm990-baseboard.c | 23 ++++++++++++++++------- drivers/media/video/mt9m001.c | 3 +++ drivers/media/video/mt9v022.c | 3 +++ include/media/soc_camera.h | 1 + 4 files changed, 23 insertions(+), 7 deletions(-) --- linux/arch/arm/mach-pxa/pcm990-baseboard.c | 23 ++++++++++++++++------- linux/drivers/media/video/mt9m001.c | 3 +++ linux/drivers/media/video/mt9v022.c | 3 +++ linux/include/media/soc_camera.h | 1 + 4 files changed, 23 insertions(+), 7 deletions(-) diff --git a/linux/arch/arm/mach-pxa/pcm990-baseboard.c b/linux/arch/arm/mach-pxa/pcm990-baseboard.c index 6c12b5a31..9ce1ef2e5 100644 --- a/linux/arch/arm/mach-pxa/pcm990-baseboard.c +++ b/linux/arch/arm/mach-pxa/pcm990-baseboard.c @@ -380,12 +380,12 @@ static struct pca953x_platform_data pca9536_data = { .gpio_base = NR_BUILTIN_GPIO, }; -static int gpio_bus_switch; +static int gpio_bus_switch = -EINVAL; static int pcm990_camera_set_bus_param(struct soc_camera_link *link, - unsigned long flags) + unsigned long flags) { - if (gpio_bus_switch <= 0) { + if (gpio_bus_switch < 0) { if (flags == SOCAM_DATAWIDTH_10) return 0; else @@ -404,25 +404,34 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link) { int ret; - if (!gpio_bus_switch) { + if (gpio_bus_switch < 0) { ret = gpio_request(NR_BUILTIN_GPIO, "camera"); if (!ret) { gpio_bus_switch = NR_BUILTIN_GPIO; gpio_direction_output(gpio_bus_switch, 0); - } else - gpio_bus_switch = -EINVAL; + } } - if (gpio_bus_switch > 0) + if (gpio_bus_switch >= 0) return SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_10; else return SOCAM_DATAWIDTH_10; } +static void pcm990_camera_free_bus(struct soc_camera_link *link) +{ + if (gpio_bus_switch < 0) + return; + + gpio_free(gpio_bus_switch); + gpio_bus_switch = -EINVAL; +} + static struct soc_camera_link iclink = { .bus_id = 0, /* Must match with the camera ID above */ .query_bus_param = pcm990_camera_query_bus_param, .set_bus_param = pcm990_camera_set_bus_param, + .free_bus = pcm990_camera_free_bus, }; /* Board I2C devices. */ diff --git a/linux/drivers/media/video/mt9m001.c b/linux/drivers/media/video/mt9m001.c index 83f3cae47..959edc760 100644 --- a/linux/drivers/media/video/mt9m001.c +++ b/linux/drivers/media/video/mt9m001.c @@ -604,10 +604,13 @@ ei2c: static void mt9m001_video_remove(struct soc_camera_device *icd) { struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); + struct soc_camera_link *icl = mt9m001->client->dev.platform_data; dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m001->client->addr, icd->dev.parent, icd->vdev); soc_camera_video_stop(icd); + if (icl->free_bus) + icl->free_bus(icl); } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) diff --git a/linux/drivers/media/video/mt9v022.c b/linux/drivers/media/video/mt9v022.c index 3bee30caa..07ffd967e 100644 --- a/linux/drivers/media/video/mt9v022.c +++ b/linux/drivers/media/video/mt9v022.c @@ -735,10 +735,13 @@ ei2c: static void mt9v022_video_remove(struct soc_camera_device *icd) { struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); + struct soc_camera_link *icl = mt9v022->client->dev.platform_data; dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9v022->client->addr, icd->dev.parent, icd->vdev); soc_camera_video_stop(icd); + if (icl->free_bus) + icl->free_bus(icl); } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) diff --git a/linux/include/media/soc_camera.h b/linux/include/media/soc_camera.h index 37013688a..396c32550 100644 --- a/linux/include/media/soc_camera.h +++ b/linux/include/media/soc_camera.h @@ -107,6 +107,7 @@ struct soc_camera_link { */ int (*set_bus_param)(struct soc_camera_link *, unsigned long flags); unsigned long (*query_bus_param)(struct soc_camera_link *); + void (*free_bus)(struct soc_camera_link *); }; static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev) -- cgit v1.2.3 From 217174ee3676b072ebdb35e23c59dea90d1894dd Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:55:18 +0200 Subject: soc-camera: host-driver cleanup From: Guennadi Liakhovetski Embed struct soc_camera_host in platform-specific per host instance objects instead of allocating them statically in drivers, use platform_[gs]et_drvdata consistently, use resource_size(). Signed-off-by: Guennadi Liakhovetski --- drivers/media/video/mx1_camera.c | 21 ++++++++----------- drivers/media/video/mx3_camera.c | 2 +- drivers/media/video/pxa_camera.c | 29 ++++++++++++--------------- drivers/media/video/sh_mobile_ceu_camera.c | 6 ++-- 4 files changed, 26 insertions(+), 32 deletions(-) --- linux/drivers/media/video/mx1_camera.c | 21 ++++++++--------- linux/drivers/media/video/mx3_camera.c | 2 +- linux/drivers/media/video/pxa_camera.c | 29 +++++++++++------------- linux/drivers/media/video/sh_mobile_ceu_camera.c | 6 ++--- 4 files changed, 26 insertions(+), 32 deletions(-) diff --git a/linux/drivers/media/video/mx1_camera.c b/linux/drivers/media/video/mx1_camera.c index 86fab56c5..48dd984da 100644 --- a/linux/drivers/media/video/mx1_camera.c +++ b/linux/drivers/media/video/mx1_camera.c @@ -102,6 +102,7 @@ struct mx1_buffer { * Interface. If anyone ever builds hardware to enable more than * one camera, they will have to modify this driver too */ struct mx1_camera_dev { + struct soc_camera_host soc_host; struct soc_camera_device *icd; struct mx1_camera_pdata *pdata; struct mx1_buffer *active; @@ -633,12 +634,6 @@ static struct soc_camera_host_ops mx1_soc_camera_host_ops = { .querycap = mx1_camera_querycap, }; -/* Should be allocated dynamically too, but we have only one. */ -static struct soc_camera_host mx1_soc_camera_host = { - .drv_name = DRIVER_NAME, - .ops = &mx1_soc_camera_host_ops, -}; - static struct fiq_handler fh = { .name = "csi_sof" }; @@ -673,7 +668,7 @@ static int __init mx1_camera_probe(struct platform_device *pdev) goto exit_put_clk; } - dev_set_drvdata(&pdev->dev, pcdev); + platform_set_drvdata(pdev, pcdev); pcdev->res = res; pcdev->clk = clk; @@ -746,10 +741,12 @@ static int __init mx1_camera_probe(struct platform_device *pdev) mxc_set_irq_fiq(irq, 1); enable_fiq(irq); - mx1_soc_camera_host.priv = pcdev; - mx1_soc_camera_host.dev.parent = &pdev->dev; - mx1_soc_camera_host.nr = pdev->id; - err = soc_camera_host_register(&mx1_soc_camera_host); + pcdev->soc_host.drv_name = DRIVER_NAME; + pcdev->soc_host.ops = &mx1_soc_camera_host_ops; + pcdev->soc_host.priv = pcdev; + pcdev->soc_host.dev.parent = &pdev->dev; + pcdev->soc_host.nr = pdev->id; + err = soc_camera_host_register(&pcdev->soc_host); if (err) goto exit_free_irq; @@ -787,7 +784,7 @@ static int __exit mx1_camera_remove(struct platform_device *pdev) clk_put(pcdev->clk); - soc_camera_host_unregister(&mx1_soc_camera_host); + soc_camera_host_unregister(&pcdev->soc_host); iounmap(pcdev->base); diff --git a/linux/drivers/media/video/mx3_camera.c b/linux/drivers/media/video/mx3_camera.c index c462b811e..22c58dcc8 100644 --- a/linux/drivers/media/video/mx3_camera.c +++ b/linux/drivers/media/video/mx3_camera.c @@ -1106,7 +1106,7 @@ static int mx3_camera_probe(struct platform_device *pdev) goto eclkget; } - dev_set_drvdata(&pdev->dev, mx3_cam); + platform_set_drvdata(pdev, mx3_cam); mx3_cam->pdata = pdev->dev.platform_data; mx3_cam->platform_flags = mx3_cam->pdata->flags; diff --git a/linux/drivers/media/video/pxa_camera.c b/linux/drivers/media/video/pxa_camera.c index cb4491338..682e66d95 100644 --- a/linux/drivers/media/video/pxa_camera.c +++ b/linux/drivers/media/video/pxa_camera.c @@ -214,6 +214,7 @@ struct pxa_buffer { }; struct pxa_camera_dev { + struct soc_camera_host soc_host; struct device *dev; /* PXA27x is only supposed to handle one camera on its Quick Capture * interface. If anyone ever builds hardware to enable more than @@ -1564,12 +1565,6 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = { .set_bus_param = pxa_camera_set_bus_param, }; -/* Should be allocated dynamically too, but we have only one. */ -static struct soc_camera_host pxa_soc_camera_host = { - .drv_name = PXA_CAM_DRV_NAME, - .ops = &pxa_soc_camera_host_ops, -}; - static int pxa_camera_probe(struct platform_device *pdev) { struct pxa_camera_dev *pcdev; @@ -1598,7 +1593,7 @@ static int pxa_camera_probe(struct platform_device *pdev) goto exit_kfree; } - dev_set_drvdata(&pdev->dev, pcdev); + platform_set_drvdata(pdev, pcdev); pcdev->res = res; pcdev->pdata = pdev->dev.platform_data; @@ -1628,13 +1623,13 @@ static int pxa_camera_probe(struct platform_device *pdev) /* * Request the regions. */ - if (!request_mem_region(res->start, res->end - res->start + 1, + if (!request_mem_region(res->start, resource_size(res), PXA_CAM_DRV_NAME)) { err = -EBUSY; goto exit_clk; } - base = ioremap(res->start, res->end - res->start + 1); + base = ioremap(res->start, resource_size(res)); if (!base) { err = -ENOMEM; goto exit_release; @@ -1682,10 +1677,12 @@ static int pxa_camera_probe(struct platform_device *pdev) goto exit_free_dma; } - pxa_soc_camera_host.priv = pcdev; - pxa_soc_camera_host.dev.parent = &pdev->dev; - pxa_soc_camera_host.nr = pdev->id; - err = soc_camera_host_register(&pxa_soc_camera_host); + pcdev->soc_host.drv_name = PXA_CAM_DRV_NAME; + pcdev->soc_host.ops = &pxa_soc_camera_host_ops; + pcdev->soc_host.priv = pcdev; + pcdev->soc_host.dev.parent = &pdev->dev; + pcdev->soc_host.nr = pdev->id; + err = soc_camera_host_register(&pcdev->soc_host); if (err) goto exit_free_irq; @@ -1702,7 +1699,7 @@ exit_free_dma_y: exit_iounmap: iounmap(base); exit_release: - release_mem_region(res->start, res->end - res->start + 1); + release_mem_region(res->start, resource_size(res)); exit_clk: clk_put(pcdev->clk); exit_kfree: @@ -1723,12 +1720,12 @@ static int __devexit pxa_camera_remove(struct platform_device *pdev) pxa_free_dma(pcdev->dma_chans[2]); free_irq(pcdev->irq, pcdev); - soc_camera_host_unregister(&pxa_soc_camera_host); + soc_camera_host_unregister(&pcdev->soc_host); iounmap(pcdev->base); res = pcdev->res; - release_mem_region(res->start, res->end - res->start + 1); + release_mem_region(res->start, resource_size(res)); kfree(pcdev); diff --git a/linux/drivers/media/video/sh_mobile_ceu_camera.c b/linux/drivers/media/video/sh_mobile_ceu_camera.c index cd796b33f..0647f3724 100644 --- a/linux/drivers/media/video/sh_mobile_ceu_camera.c +++ b/linux/drivers/media/video/sh_mobile_ceu_camera.c @@ -841,7 +841,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) goto exit_kfree; } - base = ioremap_nocache(res->start, res->end - res->start + 1); + base = ioremap_nocache(res->start, resource_size(res)); if (!base) { err = -ENXIO; dev_err(&pdev->dev, "Unable to ioremap CEU registers.\n"); @@ -857,7 +857,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) if (res) { err = dma_declare_coherent_memory(&pdev->dev, res->start, res->start, - (res->end - res->start) + 1, + resource_size(res), DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); if (!err) { @@ -866,7 +866,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) goto exit_iounmap; } - pcdev->video_limit = (res->end - res->start) + 1; + pcdev->video_limit = resource_size(res); } /* request irq */ -- cgit v1.2.3 From 0d6bf4267e7a2b8a78e1e92da9a4545bc82d29c5 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:55:48 +0200 Subject: soc-camera: remove an extra device generation from struct soc_camera_host From: Guennadi Liakhovetski Make camera devices direct children of host platform devices, move the inheritance management into the soc_camera.c core driver. Signed-off-by: Guennadi Liakhovetski --- drivers/media/video/mx1_camera.c | 35 +++++----- drivers/media/video/mx3_camera.c | 40 ++++++------ drivers/media/video/pxa_camera.c | 97 ++++++++++++++-------------- drivers/media/video/sh_mobile_ceu_camera.c | 21 +++--- drivers/media/video/soc_camera.c | 35 +++------- include/media/soc_camera.h | 4 +- 6 files changed, 107 insertions(+), 125 deletions(-) --- linux/drivers/media/video/mx1_camera.c | 35 +++++---- linux/drivers/media/video/mx3_camera.c | 40 +++++----- linux/drivers/media/video/pxa_camera.c | 97 ++++++++++++------------ linux/drivers/media/video/sh_mobile_ceu_camera.c | 21 +++-- linux/drivers/media/video/soc_camera.c | 35 +++------ linux/include/media/soc_camera.h | 4 +- 6 files changed, 107 insertions(+), 125 deletions(-) diff --git a/linux/drivers/media/video/mx1_camera.c b/linux/drivers/media/video/mx1_camera.c index 48dd984da..2d075205b 100644 --- a/linux/drivers/media/video/mx1_camera.c +++ b/linux/drivers/media/video/mx1_camera.c @@ -106,7 +106,6 @@ struct mx1_camera_dev { struct soc_camera_device *icd; struct mx1_camera_pdata *pdata; struct mx1_buffer *active; - struct device *dev; struct resource *res; struct clk *clk; struct list_head capture; @@ -220,7 +219,7 @@ static int mx1_camera_setup_dma(struct mx1_camera_dev *pcdev) int ret; if (unlikely(!pcdev->active)) { - dev_err(pcdev->dev, "DMA End IRQ with no active buffer\n"); + dev_err(pcdev->soc_host.dev, "DMA End IRQ with no active buffer\n"); return -EFAULT; } @@ -230,7 +229,7 @@ static int mx1_camera_setup_dma(struct mx1_camera_dev *pcdev) vbuf->size, pcdev->res->start + CSIRXR, DMA_MODE_READ); if (unlikely(ret)) - dev_err(pcdev->dev, "Failed to setup DMA sg list\n"); + dev_err(pcdev->soc_host.dev, "Failed to setup DMA sg list\n"); return ret; } @@ -339,14 +338,14 @@ static void mx1_camera_dma_irq(int channel, void *data) imx_dma_disable(channel); if (unlikely(!pcdev->active)) { - dev_err(pcdev->dev, "DMA End IRQ with no active buffer\n"); + dev_err(pcdev->soc_host.dev, "DMA End IRQ with no active buffer\n"); goto out; } vb = &pcdev->active->vb; buf = container_of(vb, struct mx1_buffer, vb); WARN_ON(buf->inwork || list_empty(&vb->queue)); - dev_dbg(pcdev->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__, + dev_dbg(pcdev->soc_host.dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__, vb, vb->baddr, vb->bsize); mx1_camera_wakeup(pcdev, vb, buf); @@ -367,7 +366,7 @@ static void mx1_camera_init_videobuf(struct videobuf_queue *q, struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct mx1_camera_dev *pcdev = ici->priv; - videobuf_queue_dma_contig_init(q, &mx1_videobuf_ops, pcdev->dev, + videobuf_queue_dma_contig_init(q, &mx1_videobuf_ops, ici->dev, &pcdev->lock, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE, @@ -386,7 +385,7 @@ static int mclk_get_divisor(struct mx1_camera_dev *pcdev) * they get a nice Oops */ div = (lcdclk + 2 * mclk - 1) / (2 * mclk) - 1; - dev_dbg(pcdev->dev, "System clock %lukHz, target freq %dkHz, " + dev_dbg(pcdev->soc_host.dev, "System clock %lukHz, target freq %dkHz, " "divisor %lu\n", lcdclk / 1000, mclk / 1000, div); return div; @@ -396,7 +395,7 @@ static void mx1_camera_activate(struct mx1_camera_dev *pcdev) { unsigned int csicr1 = CSICR1_EN; - dev_dbg(pcdev->dev, "Activate device\n"); + dev_dbg(pcdev->soc_host.dev, "Activate device\n"); clk_enable(pcdev->clk); @@ -412,7 +411,7 @@ static void mx1_camera_activate(struct mx1_camera_dev *pcdev) static void mx1_camera_deactivate(struct mx1_camera_dev *pcdev) { - dev_dbg(pcdev->dev, "Deactivate device\n"); + dev_dbg(pcdev->soc_host.dev, "Deactivate device\n"); /* Disable all CSI interface */ __raw_writel(0x00, pcdev->base + CSICR1); @@ -551,7 +550,7 @@ static int mx1_camera_set_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat); + dev_warn(ici->dev, "Format %x not found\n", pix->pixelformat); return -EINVAL; } @@ -668,7 +667,6 @@ static int __init mx1_camera_probe(struct platform_device *pdev) goto exit_put_clk; } - platform_set_drvdata(pdev, pcdev); pcdev->res = res; pcdev->clk = clk; @@ -702,16 +700,15 @@ static int __init mx1_camera_probe(struct platform_device *pdev) } pcdev->irq = irq; pcdev->base = base; - pcdev->dev = &pdev->dev; /* request dma */ pcdev->dma_chan = imx_dma_request_by_prio(DRIVER_NAME, DMA_PRIO_HIGH); if (pcdev->dma_chan < 0) { - dev_err(pcdev->dev, "Can't request DMA for MX1 CSI\n"); + dev_err(&pdev->dev, "Can't request DMA for MX1 CSI\n"); err = -EBUSY; goto exit_iounmap; } - dev_dbg(pcdev->dev, "got DMA channel %d\n", pcdev->dma_chan); + dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_chan); imx_dma_setup_handlers(pcdev->dma_chan, mx1_camera_dma_irq, NULL, pcdev); @@ -724,7 +721,7 @@ static int __init mx1_camera_probe(struct platform_device *pdev) /* request irq */ err = claim_fiq(&fh); if (err) { - dev_err(pcdev->dev, "Camera interrupt register failed \n"); + dev_err(&pdev->dev, "Camera interrupt register failed \n"); goto exit_free_dma; } @@ -744,7 +741,7 @@ static int __init mx1_camera_probe(struct platform_device *pdev) pcdev->soc_host.drv_name = DRIVER_NAME; pcdev->soc_host.ops = &mx1_soc_camera_host_ops; pcdev->soc_host.priv = pcdev; - pcdev->soc_host.dev.parent = &pdev->dev; + pcdev->soc_host.dev = &pdev->dev; pcdev->soc_host.nr = pdev->id; err = soc_camera_host_register(&pcdev->soc_host); if (err) @@ -774,7 +771,9 @@ exit: static int __exit mx1_camera_remove(struct platform_device *pdev) { - struct mx1_camera_dev *pcdev = platform_get_drvdata(pdev); + struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); + struct mx1_camera_dev *pcdev = container_of(soc_host, + struct mx1_camera_dev, soc_host); struct resource *res; imx_dma_free(pcdev->dma_chan); @@ -784,7 +783,7 @@ static int __exit mx1_camera_remove(struct platform_device *pdev) clk_put(pcdev->clk); - soc_camera_host_unregister(&pcdev->soc_host); + soc_camera_host_unregister(soc_host); iounmap(pcdev->base); diff --git a/linux/drivers/media/video/mx3_camera.c b/linux/drivers/media/video/mx3_camera.c index 22c58dcc8..cb13faa2e 100644 --- a/linux/drivers/media/video/mx3_camera.c +++ b/linux/drivers/media/video/mx3_camera.c @@ -87,7 +87,6 @@ struct mx3_camera_buffer { * @soc_host: embedded soc_host object */ struct mx3_camera_dev { - struct device *dev; /* * i.MX3x is only supposed to handle one camera on its Camera Sensor * Interface. If anyone ever builds hardware to enable more than one @@ -431,7 +430,7 @@ static void mx3_camera_init_videobuf(struct videobuf_queue *q, struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct mx3_camera_dev *mx3_cam = ici->priv; - videobuf_queue_dma_contig_init(q, &mx3_videobuf_ops, mx3_cam->dev, + videobuf_queue_dma_contig_init(q, &mx3_videobuf_ops, ici->dev, &mx3_cam->lock, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE, @@ -599,7 +598,8 @@ static int test_platform_param(struct mx3_camera_dev *mx3_cam, *flags |= SOCAM_DATAWIDTH_4; break; default: - dev_info(mx3_cam->dev, "Unsupported bus width %d\n", buswidth); + dev_info(mx3_cam->soc_host.dev, "Unsupported bus width %d\n", + buswidth); return -EINVAL; } @@ -614,7 +614,7 @@ static int mx3_camera_try_bus_param(struct soc_camera_device *icd, unsigned long bus_flags, camera_flags; int ret = test_platform_param(mx3_cam, depth, &bus_flags); - dev_dbg(&ici->dev, "requested bus width %d bit: %d\n", depth, ret); + dev_dbg(ici->dev, "requested bus width %d bit: %d\n", depth, ret); if (ret < 0) return ret; @@ -637,7 +637,7 @@ static bool chan_filter(struct dma_chan *chan, void *arg) if (!rq) return false; - pdata = rq->mx3_cam->dev->platform_data; + pdata = rq->mx3_cam->soc_host.dev->platform_data; return rq->id == chan->chan_id && pdata->dma_dev == chan->device->dev; @@ -697,7 +697,7 @@ static int mx3_camera_get_formats(struct soc_camera_device *icd, int idx, xlate->cam_fmt = icd->formats + idx; xlate->buswidth = buswidth; xlate++; - dev_dbg(&ici->dev, "Providing format %s using %s\n", + dev_dbg(ici->dev, "Providing format %s using %s\n", mx3_camera_formats[0].name, icd->formats[idx].name); } @@ -709,7 +709,7 @@ static int mx3_camera_get_formats(struct soc_camera_device *icd, int idx, xlate->cam_fmt = icd->formats + idx; xlate->buswidth = buswidth; xlate++; - dev_dbg(&ici->dev, "Providing format %s using %s\n", + dev_dbg(ici->dev, "Providing format %s using %s\n", mx3_camera_formats[0].name, icd->formats[idx].name); } @@ -722,7 +722,7 @@ passthrough: xlate->cam_fmt = icd->formats + idx; xlate->buswidth = buswidth; xlate++; - dev_dbg(&ici->dev, + dev_dbg(ici->dev, "Providing format %s in pass-through mode\n", icd->formats[idx].name); } @@ -829,7 +829,7 @@ static int mx3_camera_set_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat); + dev_warn(ici->dev, "Format %x not found\n", pix->pixelformat); return -EINVAL; } @@ -866,7 +866,7 @@ static int mx3_camera_try_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); if (pixfmt && !xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pixfmt); + dev_warn(ici->dev, "Format %x not found\n", pixfmt); return -EINVAL; } @@ -933,11 +933,11 @@ static int mx3_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt) xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pixfmt); + dev_warn(ici->dev, "Format %x not found\n", pixfmt); return -EINVAL; } - dev_dbg(&ici->dev, "requested bus width %d bit: %d\n", + dev_dbg(ici->dev, "requested bus width %d bit: %d\n", icd->buswidth, ret); if (ret < 0) @@ -947,7 +947,7 @@ static int mx3_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt) common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags); if (!common_flags) { - dev_dbg(&ici->dev, "no common flags: camera %lx, host %lx\n", + dev_dbg(ici->dev, "no common flags: camera %lx, host %lx\n", camera_flags, bus_flags); return -EINVAL; } @@ -1054,7 +1054,7 @@ static int mx3_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt) csi_reg_write(mx3_cam, sens_conf | dw, CSI_SENS_CONF); - dev_dbg(&ici->dev, "Set SENS_CONF to %x\n", sens_conf | dw); + dev_dbg(ici->dev, "Set SENS_CONF to %x\n", sens_conf | dw); return 0; } @@ -1106,8 +1106,6 @@ static int mx3_camera_probe(struct platform_device *pdev) goto eclkget; } - platform_set_drvdata(pdev, mx3_cam); - mx3_cam->pdata = pdev->dev.platform_data; mx3_cam->platform_flags = mx3_cam->pdata->flags; if (!(mx3_cam->platform_flags & (MX3_CAMERA_DATAWIDTH_4 | @@ -1139,14 +1137,14 @@ static int mx3_camera_probe(struct platform_device *pdev) } mx3_cam->base = base; - mx3_cam->dev = &pdev->dev; soc_host = &mx3_cam->soc_host; soc_host->drv_name = MX3_CAM_DRV_NAME; soc_host->ops = &mx3_soc_camera_host_ops; soc_host->priv = mx3_cam; - soc_host->dev.parent = &pdev->dev; + soc_host->dev = &pdev->dev; soc_host->nr = pdev->id; + err = soc_camera_host_register(soc_host); if (err) goto ecamhostreg; @@ -1169,11 +1167,13 @@ egetres: static int __devexit mx3_camera_remove(struct platform_device *pdev) { - struct mx3_camera_dev *mx3_cam = platform_get_drvdata(pdev); + struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); + struct mx3_camera_dev *mx3_cam = container_of(soc_host, + struct mx3_camera_dev, soc_host); clk_put(mx3_cam->clk); - soc_camera_host_unregister(&mx3_cam->soc_host); + soc_camera_host_unregister(soc_host); iounmap(mx3_cam->base); diff --git a/linux/drivers/media/video/pxa_camera.c b/linux/drivers/media/video/pxa_camera.c index 682e66d95..35642c430 100644 --- a/linux/drivers/media/video/pxa_camera.c +++ b/linux/drivers/media/video/pxa_camera.c @@ -215,7 +215,6 @@ struct pxa_buffer { struct pxa_camera_dev { struct soc_camera_host soc_host; - struct device *dev; /* PXA27x is only supposed to handle one camera on its Quick Capture * interface. If anyone ever builds hardware to enable more than * one camera, they will have to modify this driver too */ @@ -274,7 +273,6 @@ static void free_buffer(struct videobuf_queue *vq, struct pxa_buffer *buf) { struct soc_camera_device *icd = vq->priv_data; struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); - struct pxa_camera_dev *pcdev = ici->priv; struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); int i; @@ -291,7 +289,7 @@ static void free_buffer(struct videobuf_queue *vq, struct pxa_buffer *buf) for (i = 0; i < ARRAY_SIZE(buf->dmas); i++) { if (buf->dmas[i].sg_cpu) - dma_free_coherent(pcdev->dev, buf->dmas[i].sg_size, + dma_free_coherent(ici->dev, buf->dmas[i].sg_size, buf->dmas[i].sg_cpu, buf->dmas[i].sg_dma); buf->dmas[i].sg_cpu = NULL; @@ -351,14 +349,14 @@ static int pxa_init_dma_channel(struct pxa_camera_dev *pcdev, int dma_len = 0, xfer_len = 0; if (pxa_dma->sg_cpu) - dma_free_coherent(pcdev->dev, pxa_dma->sg_size, + dma_free_coherent(pcdev->soc_host.dev, pxa_dma->sg_size, pxa_dma->sg_cpu, pxa_dma->sg_dma); sglen = calculate_dma_sglen(*sg_first, dma->sglen, *sg_first_ofs, size); pxa_dma->sg_size = (sglen + 1) * sizeof(struct pxa_dma_desc); - pxa_dma->sg_cpu = dma_alloc_coherent(pcdev->dev, pxa_dma->sg_size, + pxa_dma->sg_cpu = dma_alloc_coherent(pcdev->soc_host.dev, pxa_dma->sg_size, &pxa_dma->sg_dma, GFP_KERNEL); if (!pxa_dma->sg_cpu) return -ENOMEM; @@ -366,7 +364,7 @@ static int pxa_init_dma_channel(struct pxa_camera_dev *pcdev, pxa_dma->sglen = sglen; offset = *sg_first_ofs; - dev_dbg(pcdev->dev, "DMA: sg_first=%p, sglen=%d, ofs=%d, dma.desc=%x\n", + dev_dbg(pcdev->soc_host.dev, "DMA: sg_first=%p, sglen=%d, ofs=%d, dma.desc=%x\n", *sg_first, sglen, *sg_first_ofs, pxa_dma->sg_dma); @@ -389,7 +387,7 @@ static int pxa_init_dma_channel(struct pxa_camera_dev *pcdev, pxa_dma->sg_cpu[i].ddadr = pxa_dma->sg_dma + (i + 1) * sizeof(struct pxa_dma_desc); - dev_vdbg(pcdev->dev, "DMA: desc.%08x->@phys=0x%08x, len=%d\n", + dev_vdbg(pcdev->soc_host.dev, "DMA: desc.%08x->@phys=0x%08x, len=%d\n", pxa_dma->sg_dma + i * sizeof(struct pxa_dma_desc), sg_dma_address(sg) + offset, xfer_len); offset = 0; @@ -501,7 +499,7 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, ret = pxa_init_dma_channel(pcdev, buf, dma, 0, CIBR0, size_y, &sg, &next_ofs); if (ret) { - dev_err(pcdev->dev, + dev_err(pcdev->soc_host.dev, "DMA initialization for Y/RGB failed\n"); goto fail; } @@ -511,7 +509,7 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, ret = pxa_init_dma_channel(pcdev, buf, dma, 1, CIBR1, size_u, &sg, &next_ofs); if (ret) { - dev_err(pcdev->dev, + dev_err(pcdev->soc_host.dev, "DMA initialization for U failed\n"); goto fail_u; } @@ -521,7 +519,7 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, ret = pxa_init_dma_channel(pcdev, buf, dma, 2, CIBR2, size_v, &sg, &next_ofs); if (ret) { - dev_err(pcdev->dev, + dev_err(pcdev->soc_host.dev, "DMA initialization for V failed\n"); goto fail_v; } @@ -535,10 +533,10 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, return 0; fail_v: - dma_free_coherent(pcdev->dev, buf->dmas[1].sg_size, + dma_free_coherent(pcdev->soc_host.dev, buf->dmas[1].sg_size, buf->dmas[1].sg_cpu, buf->dmas[1].sg_dma); fail_u: - dma_free_coherent(pcdev->dev, buf->dmas[0].sg_size, + dma_free_coherent(pcdev->soc_host.dev, buf->dmas[0].sg_size, buf->dmas[0].sg_cpu, buf->dmas[0].sg_dma); fail: free_buffer(vq, buf); @@ -562,7 +560,7 @@ static void pxa_dma_start_channels(struct pxa_camera_dev *pcdev) active = pcdev->active; for (i = 0; i < pcdev->channels; i++) { - dev_dbg(pcdev->dev, "%s (channel=%d) ddadr=%08x\n", __func__, + dev_dbg(pcdev->soc_host.dev, "%s (channel=%d) ddadr=%08x\n", __func__, i, active->dmas[i].sg_dma); DDADR(pcdev->dma_chans[i]) = active->dmas[i].sg_dma; DCSR(pcdev->dma_chans[i]) = DCSR_RUN; @@ -574,7 +572,7 @@ static void pxa_dma_stop_channels(struct pxa_camera_dev *pcdev) int i; for (i = 0; i < pcdev->channels; i++) { - dev_dbg(pcdev->dev, "%s (channel=%d)\n", __func__, i); + dev_dbg(pcdev->soc_host.dev, "%s (channel=%d)\n", __func__, i); DCSR(pcdev->dma_chans[i]) = 0; } } @@ -610,7 +608,7 @@ static void pxa_camera_start_capture(struct pxa_camera_dev *pcdev) { unsigned long cicr0, cifr; - dev_dbg(pcdev->dev, "%s\n", __func__); + dev_dbg(pcdev->soc_host.dev, "%s\n", __func__); /* Reset the FIFOs */ cifr = __raw_readl(pcdev->base + CIFR) | CIFR_RESET_F; __raw_writel(cifr, pcdev->base + CIFR); @@ -630,7 +628,7 @@ static void pxa_camera_stop_capture(struct pxa_camera_dev *pcdev) __raw_writel(cicr0, pcdev->base + CICR0); pcdev->active = NULL; - dev_dbg(pcdev->dev, "%s\n", __func__); + dev_dbg(pcdev->soc_host.dev, "%s\n", __func__); } static void pxa_videobuf_queue(struct videobuf_queue *vq, @@ -699,7 +697,7 @@ static void pxa_camera_wakeup(struct pxa_camera_dev *pcdev, do_gettimeofday(&vb->ts); vb->field_count++; wake_up(&vb->done); - dev_dbg(pcdev->dev, "%s dequeud buffer (vb=0x%p)\n", __func__, vb); + dev_dbg(pcdev->soc_host.dev, "%s dequeud buffer (vb=0x%p)\n", __func__, vb); if (list_empty(&pcdev->capture)) { pxa_camera_stop_capture(pcdev); @@ -735,7 +733,7 @@ static void pxa_camera_check_link_miss(struct pxa_camera_dev *pcdev) for (i = 0; i < pcdev->channels; i++) if (DDADR(pcdev->dma_chans[i]) != DDADR_STOP) is_dma_stopped = 0; - dev_dbg(pcdev->dev, "%s : top queued buffer=%p, dma_stopped=%d\n", + dev_dbg(pcdev->soc_host.dev, "%s : top queued buffer=%p, dma_stopped=%d\n", __func__, pcdev->active, is_dma_stopped); if (pcdev->active && is_dma_stopped) pxa_camera_start_capture(pcdev); @@ -760,12 +758,12 @@ static void pxa_camera_dma_irq(int channel, struct pxa_camera_dev *pcdev, overrun |= CISR_IFO_1 | CISR_IFO_2; if (status & DCSR_BUSERR) { - dev_err(pcdev->dev, "DMA Bus Error IRQ!\n"); + dev_err(pcdev->soc_host.dev, "DMA Bus Error IRQ!\n"); goto out; } if (!(status & (DCSR_ENDINTR | DCSR_STARTINTR))) { - dev_err(pcdev->dev, "Unknown DMA IRQ source, " + dev_err(pcdev->soc_host.dev, "Unknown DMA IRQ source, " "status: 0x%08x\n", status); goto out; } @@ -789,7 +787,7 @@ static void pxa_camera_dma_irq(int channel, struct pxa_camera_dev *pcdev, buf = container_of(vb, struct pxa_buffer, vb); WARN_ON(buf->inwork || list_empty(&vb->queue)); - dev_dbg(pcdev->dev, "%s channel=%d %s%s(vb=0x%p) dma.desc=%x\n", + dev_dbg(pcdev->soc_host.dev, "%s channel=%d %s%s(vb=0x%p) dma.desc=%x\n", __func__, channel, status & DCSR_STARTINTR ? "SOF " : "", status & DCSR_ENDINTR ? "EOF " : "", vb, DDADR(channel)); @@ -800,7 +798,7 @@ static void pxa_camera_dma_irq(int channel, struct pxa_camera_dev *pcdev, */ if (camera_status & overrun && !list_is_last(pcdev->capture.next, &pcdev->capture)) { - dev_dbg(pcdev->dev, "FIFO overrun! CISR: %x\n", + dev_dbg(pcdev->soc_host.dev, "FIFO overrun! CISR: %x\n", camera_status); pxa_camera_stop_capture(pcdev); pxa_camera_start_capture(pcdev); @@ -867,7 +865,7 @@ static u32 mclk_get_divisor(struct pxa_camera_dev *pcdev) /* mclk <= ciclk / 4 (27.4.2) */ if (mclk > lcdclk / 4) { mclk = lcdclk / 4; - dev_warn(pcdev->dev, "Limiting master clock to %lu\n", mclk); + dev_warn(pcdev->soc_host.dev, "Limiting master clock to %lu\n", mclk); } /* We verify mclk != 0, so if anyone breaks it, here comes their Oops */ @@ -877,7 +875,7 @@ static u32 mclk_get_divisor(struct pxa_camera_dev *pcdev) if (pcdev->platform_flags & PXA_CAMERA_MCLK_EN) pcdev->mclk = lcdclk / (2 * (div + 1)); - dev_dbg(pcdev->dev, "LCD clock %luHz, target freq %luHz, " + dev_dbg(pcdev->soc_host.dev, "LCD clock %luHz, target freq %luHz, " "divisor %u\n", lcdclk, mclk, div); return div; @@ -897,12 +895,12 @@ static void pxa_camera_activate(struct pxa_camera_dev *pcdev) struct pxacamera_platform_data *pdata = pcdev->pdata; u32 cicr4 = 0; - dev_dbg(pcdev->dev, "Registered platform device at %p data %p\n", + dev_dbg(pcdev->soc_host.dev, "Registered platform device at %p data %p\n", pcdev, pdata); if (pdata && pdata->init) { - dev_dbg(pcdev->dev, "%s: Init gpios\n", __func__); - pdata->init(pcdev->dev); + dev_dbg(pcdev->soc_host.dev, "%s: Init gpios\n", __func__); + pdata->init(pcdev->soc_host.dev); } /* disable all interrupts */ @@ -944,7 +942,7 @@ static irqreturn_t pxa_camera_irq(int irq, void *data) struct videobuf_buffer *vb; status = __raw_readl(pcdev->base + CISR); - dev_dbg(pcdev->dev, "Camera interrupt status 0x%lx\n", status); + dev_dbg(pcdev->soc_host.dev, "Camera interrupt status 0x%lx\n", status); if (!status) return IRQ_NONE; @@ -1272,7 +1270,7 @@ static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx, xlate->cam_fmt = icd->formats + idx; xlate->buswidth = buswidth; xlate++; - dev_dbg(&ici->dev, "Providing format %s using %s\n", + dev_dbg(ici->dev, "Providing format %s using %s\n", pxa_camera_formats[0].name, icd->formats[idx].name); } @@ -1287,7 +1285,7 @@ static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx, xlate->cam_fmt = icd->formats + idx; xlate->buswidth = buswidth; xlate++; - dev_dbg(&ici->dev, "Providing format %s packed\n", + dev_dbg(ici->dev, "Providing format %s packed\n", icd->formats[idx].name); } break; @@ -1299,7 +1297,7 @@ static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx, xlate->cam_fmt = icd->formats + idx; xlate->buswidth = icd->formats[idx].depth; xlate++; - dev_dbg(&ici->dev, + dev_dbg(ici->dev, "Providing format %s in pass-through mode\n", icd->formats[idx].name); } @@ -1328,11 +1326,11 @@ static int pxa_camera_set_crop(struct soc_camera_device *icd, icd->sense = NULL; if (ret < 0) { - dev_warn(&ici->dev, "Failed to crop to %ux%u@%u:%u\n", + dev_warn(ici->dev, "Failed to crop to %ux%u@%u:%u\n", rect->width, rect->height, rect->left, rect->top); } else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) { if (sense.pixel_clock > sense.pixel_clock_max) { - dev_err(&ici->dev, + dev_err(ici->dev, "pixel clock %lu set by the camera too high!", sense.pixel_clock); return -EIO; @@ -1360,7 +1358,7 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat); + dev_warn(ici->dev, "Format %x not found\n", pix->pixelformat); return -EINVAL; } @@ -1376,11 +1374,11 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd, icd->sense = NULL; if (ret < 0) { - dev_warn(&ici->dev, "Failed to configure for format %x\n", + dev_warn(ici->dev, "Failed to configure for format %x\n", pix->pixelformat); } else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) { if (sense.pixel_clock > sense.pixel_clock_max) { - dev_err(&ici->dev, + dev_err(ici->dev, "pixel clock %lu set by the camera too high!", sense.pixel_clock); return -EIO; @@ -1408,7 +1406,7 @@ static int pxa_camera_try_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pixfmt); + dev_warn(ici->dev, "Format %x not found\n", pixfmt); return -EINVAL; } @@ -1593,7 +1591,6 @@ static int pxa_camera_probe(struct platform_device *pdev) goto exit_kfree; } - platform_set_drvdata(pdev, pcdev); pcdev->res = res; pcdev->pdata = pdev->dev.platform_data; @@ -1614,7 +1611,6 @@ static int pxa_camera_probe(struct platform_device *pdev) pcdev->mclk = 20000000; } - pcdev->dev = &pdev->dev; pcdev->mclk_divisor = mclk_get_divisor(pcdev); INIT_LIST_HEAD(&pcdev->capture); @@ -1641,29 +1637,29 @@ static int pxa_camera_probe(struct platform_device *pdev) err = pxa_request_dma("CI_Y", DMA_PRIO_HIGH, pxa_camera_dma_irq_y, pcdev); if (err < 0) { - dev_err(pcdev->dev, "Can't request DMA for Y\n"); + dev_err(&pdev->dev, "Can't request DMA for Y\n"); goto exit_iounmap; } pcdev->dma_chans[0] = err; - dev_dbg(pcdev->dev, "got DMA channel %d\n", pcdev->dma_chans[0]); + dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_chans[0]); err = pxa_request_dma("CI_U", DMA_PRIO_HIGH, pxa_camera_dma_irq_u, pcdev); if (err < 0) { - dev_err(pcdev->dev, "Can't request DMA for U\n"); + dev_err(&pdev->dev, "Can't request DMA for U\n"); goto exit_free_dma_y; } pcdev->dma_chans[1] = err; - dev_dbg(pcdev->dev, "got DMA channel (U) %d\n", pcdev->dma_chans[1]); + dev_dbg(&pdev->dev, "got DMA channel (U) %d\n", pcdev->dma_chans[1]); err = pxa_request_dma("CI_V", DMA_PRIO_HIGH, pxa_camera_dma_irq_v, pcdev); if (err < 0) { - dev_err(pcdev->dev, "Can't request DMA for V\n"); + dev_err(&pdev->dev, "Can't request DMA for V\n"); goto exit_free_dma_u; } pcdev->dma_chans[2] = err; - dev_dbg(pcdev->dev, "got DMA channel (V) %d\n", pcdev->dma_chans[2]); + dev_dbg(&pdev->dev, "got DMA channel (V) %d\n", pcdev->dma_chans[2]); DRCMR(68) = pcdev->dma_chans[0] | DRCMR_MAPVLD; DRCMR(69) = pcdev->dma_chans[1] | DRCMR_MAPVLD; @@ -1673,15 +1669,16 @@ static int pxa_camera_probe(struct platform_device *pdev) err = request_irq(pcdev->irq, pxa_camera_irq, 0, PXA_CAM_DRV_NAME, pcdev); if (err) { - dev_err(pcdev->dev, "Camera interrupt register failed \n"); + dev_err(&pdev->dev, "Camera interrupt register failed \n"); goto exit_free_dma; } pcdev->soc_host.drv_name = PXA_CAM_DRV_NAME; pcdev->soc_host.ops = &pxa_soc_camera_host_ops; pcdev->soc_host.priv = pcdev; - pcdev->soc_host.dev.parent = &pdev->dev; + pcdev->soc_host.dev = &pdev->dev; pcdev->soc_host.nr = pdev->id; + err = soc_camera_host_register(&pcdev->soc_host); if (err) goto exit_free_irq; @@ -1710,7 +1707,9 @@ exit: static int __devexit pxa_camera_remove(struct platform_device *pdev) { - struct pxa_camera_dev *pcdev = platform_get_drvdata(pdev); + struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); + struct pxa_camera_dev *pcdev = container_of(soc_host, + struct pxa_camera_dev, soc_host); struct resource *res; clk_put(pcdev->clk); @@ -1720,7 +1719,7 @@ static int __devexit pxa_camera_remove(struct platform_device *pdev) pxa_free_dma(pcdev->dma_chans[2]); free_irq(pcdev->irq, pcdev); - soc_camera_host_unregister(&pcdev->soc_host); + soc_camera_host_unregister(soc_host); iounmap(pcdev->base); diff --git a/linux/drivers/media/video/sh_mobile_ceu_camera.c b/linux/drivers/media/video/sh_mobile_ceu_camera.c index 0647f3724..bf0b176f9 100644 --- a/linux/drivers/media/video/sh_mobile_ceu_camera.c +++ b/linux/drivers/media/video/sh_mobile_ceu_camera.c @@ -82,7 +82,6 @@ struct sh_mobile_ceu_buffer { }; struct sh_mobile_ceu_dev { - struct device *dev; struct soc_camera_host ici; struct soc_camera_device *icd; @@ -618,7 +617,7 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, int idx, xlate->cam_fmt = icd->formats + idx; xlate->buswidth = icd->formats[idx].depth; xlate++; - dev_dbg(&ici->dev, "Providing format %s using %s\n", + dev_dbg(ici->dev, "Providing format %s using %s\n", sh_mobile_ceu_formats[k].name, icd->formats[idx].name); } @@ -631,7 +630,7 @@ add_single_format: xlate->cam_fmt = icd->formats + idx; xlate->buswidth = icd->formats[idx].depth; xlate++; - dev_dbg(&ici->dev, + dev_dbg(ici->dev, "Providing format %s in pass-through mode\n", icd->formats[idx].name); } @@ -658,7 +657,7 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pixfmt); + dev_warn(ici->dev, "Format %x not found\n", pixfmt); return -EINVAL; } @@ -685,7 +684,7 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pixfmt); + dev_warn(ici->dev, "Format %x not found\n", pixfmt); return -EINVAL; } @@ -783,7 +782,7 @@ static void sh_mobile_ceu_init_videobuf(struct videobuf_queue *q, videobuf_queue_dma_contig_init(q, &sh_mobile_ceu_videobuf_ops, - &ici->dev, &pcdev->lock, + ici->dev, &pcdev->lock, V4L2_BUF_TYPE_VIDEO_CAPTURE, pcdev->is_interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE, @@ -830,7 +829,6 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) goto exit; } - platform_set_drvdata(pdev, pcdev); INIT_LIST_HEAD(&pcdev->capture); spin_lock_init(&pcdev->lock); @@ -851,7 +849,6 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) pcdev->irq = irq; pcdev->base = base; pcdev->video_limit = 0; /* only enabled if second resource exists */ - pcdev->dev = &pdev->dev; res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (res) { @@ -886,7 +883,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) } pcdev->ici.priv = pcdev; - pcdev->ici.dev.parent = &pdev->dev; + pcdev->ici.dev = &pdev->dev; pcdev->ici.nr = pdev->id; pcdev->ici.drv_name = dev_name(&pdev->dev); pcdev->ici.ops = &sh_mobile_ceu_host_ops; @@ -914,9 +911,11 @@ exit: static int sh_mobile_ceu_remove(struct platform_device *pdev) { - struct sh_mobile_ceu_dev *pcdev = platform_get_drvdata(pdev); + struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); + struct sh_mobile_ceu_dev *pcdev = container_of(soc_host, + struct sh_mobile_ceu_dev, ici); - soc_camera_host_unregister(&pcdev->ici); + soc_camera_host_unregister(soc_host); clk_put(pcdev->clk); free_irq(pcdev->irq, pcdev); if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) diff --git a/linux/drivers/media/video/soc_camera.c b/linux/drivers/media/video/soc_camera.c index 9e432d390..9dca8f470 100644 --- a/linux/drivers/media/video/soc_camera.c +++ b/linux/drivers/media/video/soc_camera.c @@ -280,7 +280,7 @@ static int soc_camera_set_fmt(struct soc_camera_file *icf, return ret; } else if (!icd->current_fmt || icd->current_fmt->fourcc != pix->pixelformat) { - dev_err(&ici->dev, + dev_err(ici->dev, "Host driver hasn't set up current format correctly!\n"); return -EINVAL; } @@ -795,7 +795,7 @@ static void scan_add_host(struct soc_camera_host *ici) list_for_each_entry(icd, &devices, list) { if (icd->iface == ici->nr) { - icd->dev.parent = &ici->dev; + icd->dev.parent = ici->dev; device_register_link(icd); } } @@ -819,7 +819,7 @@ static int scan_add_device(struct soc_camera_device *icd) list_for_each_entry(ici, &hosts, list) { if (icd->iface == ici->nr) { ret = 1; - icd->dev.parent = &ici->dev; + icd->dev.parent = ici->dev; break; } } @@ -953,7 +953,6 @@ static void dummy_release(struct device *dev) int soc_camera_host_register(struct soc_camera_host *ici) { - int ret; struct soc_camera_host *ix; if (!ici || !ici->ops || @@ -966,12 +965,10 @@ int soc_camera_host_register(struct soc_camera_host *ici) !ici->ops->reqbufs || !ici->ops->add || !ici->ops->remove || - !ici->ops->poll) + !ici->ops->poll || + !ici->dev) return -EINVAL; - /* Number might be equal to the platform device ID */ - dev_set_name(&ici->dev, "camera_host%d", ici->nr); - mutex_lock(&list_lock); list_for_each_entry(ix, &hosts, list) { if (ix->nr == ici->nr) { @@ -980,26 +977,14 @@ int soc_camera_host_register(struct soc_camera_host *ici) } } + dev_set_drvdata(ici->dev, ici); + list_add_tail(&ici->list, &hosts); mutex_unlock(&list_lock); - ici->dev.release = dummy_release; - - ret = device_register(&ici->dev); - - if (ret) - goto edevr; - scan_add_host(ici); return 0; - -edevr: - mutex_lock(&list_lock); - list_del(&ici->list); - mutex_unlock(&list_lock); - - return ret; } EXPORT_SYMBOL(soc_camera_host_register); @@ -1013,7 +998,7 @@ void soc_camera_host_unregister(struct soc_camera_host *ici) list_del(&ici->list); list_for_each_entry(icd, &devices, list) { - if (icd->dev.parent == &ici->dev) { + if (icd->dev.parent == ici->dev) { device_unregister(&icd->dev); /* Not before device_unregister(), .remove * needs parent to call ici->ops->remove() */ @@ -1024,7 +1009,7 @@ void soc_camera_host_unregister(struct soc_camera_host *ici) mutex_unlock(&list_lock); - device_unregister(&ici->dev); + dev_set_drvdata(ici->dev, NULL); } EXPORT_SYMBOL(soc_camera_host_unregister); @@ -1131,7 +1116,7 @@ int soc_camera_video_start(struct soc_camera_device *icd) vdev = video_device_alloc(); if (!vdev) goto evidallocd; - dev_dbg(&ici->dev, "Allocated video_device %p\n", vdev); + dev_dbg(ici->dev, "Allocated video_device %p\n", vdev); strlcpy(vdev->name, ici->drv_name, sizeof(vdev->name)); diff --git a/linux/include/media/soc_camera.h b/linux/include/media/soc_camera.h index 396c32550..bef5e81d6 100644 --- a/linux/include/media/soc_camera.h +++ b/linux/include/media/soc_camera.h @@ -60,7 +60,7 @@ struct soc_camera_file { struct soc_camera_host { struct list_head list; - struct device dev; + struct device *dev; unsigned char nr; /* Host number */ void *priv; const char *drv_name; @@ -117,7 +117,7 @@ static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev) static inline struct soc_camera_host *to_soc_camera_host(struct device *dev) { - return container_of(dev, struct soc_camera_host, dev); + return dev_get_drvdata(dev); } extern int soc_camera_host_register(struct soc_camera_host *ici); -- cgit v1.2.3 From 8cef54b05d22c813f03e2df886dbd50c5a135085 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:57:01 +0200 Subject: soc-camera: simplify register access routines in multiple sensor drivers From: Guennadi Liakhovetski Register access routines only need the I2C client, not the soc-camera device context. Signed-off-by: Guennadi Liakhovetski --- drivers/media/video/mt9m001.c | 105 +++++++++++++++++--------------- drivers/media/video/mt9m111.c | 73 ++++++++++++---------- drivers/media/video/mt9t031.c | 135 +++++++++++++++++++++------------------- drivers/media/video/mt9v022.c | 135 +++++++++++++++++++++-------------------- 4 files changed, 236 insertions(+), 212 deletions(-) --- linux/drivers/media/video/mt9m001.c | 105 +++++++++++++++------------- linux/drivers/media/video/mt9m111.c | 73 ++++++++++--------- linux/drivers/media/video/mt9t031.c | 135 +++++++++++++++++++----------------- linux/drivers/media/video/mt9v022.c | 135 +++++++++++++++++++----------------- 4 files changed, 236 insertions(+), 212 deletions(-) diff --git a/linux/drivers/media/video/mt9m001.c b/linux/drivers/media/video/mt9m001.c index 959edc760..8d61ad30a 100644 --- a/linux/drivers/media/video/mt9m001.c +++ b/linux/drivers/media/video/mt9m001.c @@ -75,53 +75,50 @@ struct mt9m001 { unsigned char autoexposure; }; -static int reg_read(struct soc_camera_device *icd, const u8 reg) +static int reg_read(struct i2c_client *client, const u8 reg) { - struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); - struct i2c_client *client = mt9m001->client; s32 data = i2c_smbus_read_word_data(client, reg); return data < 0 ? data : swab16(data); } -static int reg_write(struct soc_camera_device *icd, const u8 reg, +static int reg_write(struct i2c_client *client, const u8 reg, const u16 data) { - struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); - return i2c_smbus_write_word_data(mt9m001->client, reg, swab16(data)); + return i2c_smbus_write_word_data(client, reg, swab16(data)); } -static int reg_set(struct soc_camera_device *icd, const u8 reg, +static int reg_set(struct i2c_client *client, const u8 reg, const u16 data) { int ret; - ret = reg_read(icd, reg); + ret = reg_read(client, reg); if (ret < 0) return ret; - return reg_write(icd, reg, ret | data); + return reg_write(client, reg, ret | data); } -static int reg_clear(struct soc_camera_device *icd, const u8 reg, +static int reg_clear(struct i2c_client *client, const u8 reg, const u16 data) { int ret; - ret = reg_read(icd, reg); + ret = reg_read(client, reg); if (ret < 0) return ret; - return reg_write(icd, reg, ret & ~data); + return reg_write(client, reg, ret & ~data); } static int mt9m001_init(struct soc_camera_device *icd) { - struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); - struct soc_camera_link *icl = mt9m001->client->dev.platform_data; + struct i2c_client *client = to_i2c_client(icd->control); + struct soc_camera_link *icl = client->dev.platform_data; int ret; dev_dbg(icd->vdev->parent, "%s\n", __func__); if (icl->power) { - ret = icl->power(&mt9m001->client->dev, 1); + ret = icl->power(&client->dev, 1); if (ret < 0) { dev_err(icd->vdev->parent, "Platform failed to power-on the camera.\n"); @@ -131,49 +128,53 @@ static int mt9m001_init(struct soc_camera_device *icd) /* The camera could have been already on, we reset it additionally */ if (icl->reset) - ret = icl->reset(&mt9m001->client->dev); + ret = icl->reset(&client->dev); else ret = -ENODEV; if (ret < 0) { /* Either no platform reset, or platform reset failed */ - ret = reg_write(icd, MT9M001_RESET, 1); + ret = reg_write(client, MT9M001_RESET, 1); if (!ret) - ret = reg_write(icd, MT9M001_RESET, 0); + ret = reg_write(client, MT9M001_RESET, 0); } /* Disable chip, synchronous option update */ if (!ret) - ret = reg_write(icd, MT9M001_OUTPUT_CONTROL, 0); + ret = reg_write(client, MT9M001_OUTPUT_CONTROL, 0); return ret; } static int mt9m001_release(struct soc_camera_device *icd) { - struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); - struct soc_camera_link *icl = mt9m001->client->dev.platform_data; + struct i2c_client *client = to_i2c_client(icd->control); + struct soc_camera_link *icl = client->dev.platform_data; /* Disable the chip */ - reg_write(icd, MT9M001_OUTPUT_CONTROL, 0); + reg_write(client, MT9M001_OUTPUT_CONTROL, 0); if (icl->power) - icl->power(&mt9m001->client->dev, 0); + icl->power(&client->dev, 0); return 0; } static int mt9m001_start_capture(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); + /* Switch to master "normal" mode */ - if (reg_write(icd, MT9M001_OUTPUT_CONTROL, 2) < 0) + if (reg_write(client, MT9M001_OUTPUT_CONTROL, 2) < 0) return -EIO; return 0; } static int mt9m001_stop_capture(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); + /* Stop sensor readout */ - if (reg_write(icd, MT9M001_OUTPUT_CONTROL, 0) < 0) + if (reg_write(client, MT9M001_OUTPUT_CONTROL, 0) < 0) return -EIO; return 0; } @@ -222,28 +223,29 @@ static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd) static int mt9m001_set_crop(struct soc_camera_device *icd, struct v4l2_rect *rect) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); int ret; const u16 hblank = 9, vblank = 25; /* Blanking and start values - default... */ - ret = reg_write(icd, MT9M001_HORIZONTAL_BLANKING, hblank); + ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank); if (!ret) - ret = reg_write(icd, MT9M001_VERTICAL_BLANKING, vblank); + ret = reg_write(client, MT9M001_VERTICAL_BLANKING, vblank); /* The caller provides a supported format, as verified per * call to icd->try_fmt() */ if (!ret) - ret = reg_write(icd, MT9M001_COLUMN_START, rect->left); + ret = reg_write(client, MT9M001_COLUMN_START, rect->left); if (!ret) - ret = reg_write(icd, MT9M001_ROW_START, rect->top); + ret = reg_write(client, MT9M001_ROW_START, rect->top); if (!ret) - ret = reg_write(icd, MT9M001_WINDOW_WIDTH, rect->width - 1); + ret = reg_write(client, MT9M001_WINDOW_WIDTH, rect->width - 1); if (!ret) - ret = reg_write(icd, MT9M001_WINDOW_HEIGHT, + ret = reg_write(client, MT9M001_WINDOW_HEIGHT, rect->height + icd->y_skip_top - 1); if (!ret && mt9m001->autoexposure) { - ret = reg_write(icd, MT9M001_SHUTTER_WIDTH, + ret = reg_write(client, MT9M001_SHUTTER_WIDTH, rect->height + icd->y_skip_top + vblank); if (!ret) { const struct v4l2_queryctrl *qctrl = @@ -312,16 +314,16 @@ static int mt9m001_get_chip_id(struct soc_camera_device *icd, static int mt9m001_get_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) return -EINVAL; - if (reg->match.addr != mt9m001->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; reg->size = 2; - reg->val = reg_read(icd, reg->reg); + reg->val = reg_read(client, reg->reg); if (reg->val > 0xffff) return -EIO; @@ -332,15 +334,15 @@ static int mt9m001_get_register(struct soc_camera_device *icd, static int mt9m001_set_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) return -EINVAL; - if (reg->match.addr != mt9m001->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; - if (reg_write(icd, reg->reg, reg->val) < 0) + if (reg_write(client, reg->reg, reg->val) < 0) return -EIO; return 0; @@ -416,12 +418,13 @@ static struct soc_camera_ops mt9m001_ops = { static int mt9m001_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); int data; switch (ctrl->id) { case V4L2_CID_VFLIP: - data = reg_read(icd, MT9M001_READ_OPTIONS2); + data = reg_read(client, MT9M001_READ_OPTIONS2); if (data < 0) return -EIO; ctrl->value = !!(data & 0x8000); @@ -435,6 +438,7 @@ static int mt9m001_get_control(struct soc_camera_device *icd, struct v4l2_contro static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); const struct v4l2_queryctrl *qctrl; int data; @@ -447,9 +451,9 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro switch (ctrl->id) { case V4L2_CID_VFLIP: if (ctrl->value) - data = reg_set(icd, MT9M001_READ_OPTIONS2, 0x8000); + data = reg_set(client, MT9M001_READ_OPTIONS2, 0x8000); else - data = reg_clear(icd, MT9M001_READ_OPTIONS2, 0x8000); + data = reg_clear(client, MT9M001_READ_OPTIONS2, 0x8000); if (data < 0) return -EIO; break; @@ -463,7 +467,7 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range; dev_dbg(&icd->dev, "Setting gain %d\n", data); - data = reg_write(icd, MT9M001_GLOBAL_GAIN, data); + data = reg_write(client, MT9M001_GLOBAL_GAIN, data); if (data < 0) return -EIO; } else { @@ -481,8 +485,8 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro data = ((gain - 64) * 7 + 28) / 56 + 96; dev_dbg(&icd->dev, "Setting gain from %d to %d\n", - reg_read(icd, MT9M001_GLOBAL_GAIN), data); - data = reg_write(icd, MT9M001_GLOBAL_GAIN, data); + reg_read(client, MT9M001_GLOBAL_GAIN), data); + data = reg_write(client, MT9M001_GLOBAL_GAIN, data); if (data < 0) return -EIO; } @@ -500,8 +504,8 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro range / 2) / range + 1; dev_dbg(&icd->dev, "Setting shutter width from %d to %lu\n", - reg_read(icd, MT9M001_SHUTTER_WIDTH), shutter); - if (reg_write(icd, MT9M001_SHUTTER_WIDTH, shutter) < 0) + reg_read(client, MT9M001_SHUTTER_WIDTH), shutter); + if (reg_write(client, MT9M001_SHUTTER_WIDTH, shutter) < 0) return -EIO; icd->exposure = ctrl->value; mt9m001->autoexposure = 0; @@ -510,7 +514,7 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro case V4L2_CID_EXPOSURE_AUTO: if (ctrl->value) { const u16 vblank = 25; - if (reg_write(icd, MT9M001_SHUTTER_WIDTH, icd->height + + if (reg_write(client, MT9M001_SHUTTER_WIDTH, icd->height + icd->y_skip_top + vblank) < 0) return -EIO; qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE); @@ -529,8 +533,9 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro * this wasn't our capture interface, so, we wait for the right one */ static int mt9m001_video_probe(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); - struct soc_camera_link *icl = mt9m001->client->dev.platform_data; + struct soc_camera_link *icl = client->dev.platform_data; s32 data; int ret; unsigned long flags; @@ -542,11 +547,11 @@ static int mt9m001_video_probe(struct soc_camera_device *icd) return -ENODEV; /* Enable the chip */ - data = reg_write(icd, MT9M001_CHIP_ENABLE, 1); + data = reg_write(client, MT9M001_CHIP_ENABLE, 1); dev_dbg(&icd->dev, "write: %d\n", data); /* Read out the chip version register */ - data = reg_read(icd, MT9M001_CHIP_VERSION); + data = reg_read(client, MT9M001_CHIP_VERSION); /* must be 0x8411 or 0x8421 for colour sensor and 8431 for bw */ switch (data) { diff --git a/linux/drivers/media/video/mt9m111.c b/linux/drivers/media/video/mt9m111.c index 69498d519..77639ae5c 100644 --- a/linux/drivers/media/video/mt9m111.c +++ b/linux/drivers/media/video/mt9m111.c @@ -113,10 +113,10 @@ * mt9m111: Camera control register addresses (0x200..0x2ff not implemented) */ -#define reg_read(reg) mt9m111_reg_read(icd, MT9M111_##reg) -#define reg_write(reg, val) mt9m111_reg_write(icd, MT9M111_##reg, (val)) -#define reg_set(reg, val) mt9m111_reg_set(icd, MT9M111_##reg, (val)) -#define reg_clear(reg, val) mt9m111_reg_clear(icd, MT9M111_##reg, (val)) +#define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg) +#define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val)) +#define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val)) +#define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val)) #define MT9M111_MIN_DARK_ROWS 8 #define MT9M111_MIN_DARK_COLS 24 @@ -184,58 +184,55 @@ static int reg_page_map_set(struct i2c_client *client, const u16 reg) return ret; } -static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg) +static int mt9m111_reg_read(struct i2c_client *client, const u16 reg) { - struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); - struct i2c_client *client = mt9m111->client; int ret; ret = reg_page_map_set(client, reg); if (!ret) ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff))); - dev_dbg(&icd->dev, "read reg.%03x -> %04x\n", reg, ret); + dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret); return ret; } -static int mt9m111_reg_write(struct soc_camera_device *icd, const u16 reg, +static int mt9m111_reg_write(struct i2c_client *client, const u16 reg, const u16 data) { - struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); - struct i2c_client *client = mt9m111->client; int ret; ret = reg_page_map_set(client, reg); if (!ret) - ret = i2c_smbus_write_word_data(mt9m111->client, (reg & 0xff), + ret = i2c_smbus_write_word_data(client, (reg & 0xff), swab16(data)); - dev_dbg(&icd->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret); + dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret); return ret; } -static int mt9m111_reg_set(struct soc_camera_device *icd, const u16 reg, +static int mt9m111_reg_set(struct i2c_client *client, const u16 reg, const u16 data) { int ret; - ret = mt9m111_reg_read(icd, reg); + ret = mt9m111_reg_read(client, reg); if (ret >= 0) - ret = mt9m111_reg_write(icd, reg, ret | data); + ret = mt9m111_reg_write(client, reg, ret | data); return ret; } -static int mt9m111_reg_clear(struct soc_camera_device *icd, const u16 reg, +static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg, const u16 data) { int ret; - ret = mt9m111_reg_read(icd, reg); - return mt9m111_reg_write(icd, reg, ret & ~data); + ret = mt9m111_reg_read(client, reg); + return mt9m111_reg_write(client, reg, ret & ~data); } static int mt9m111_set_context(struct soc_camera_device *icd, enum mt9m111_context ctxt) { + struct i2c_client *client = to_i2c_client(icd->control); int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B @@ -252,6 +249,7 @@ static int mt9m111_set_context(struct soc_camera_device *icd, static int mt9m111_setup_rect(struct soc_camera_device *icd, struct v4l2_rect *rect) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); int ret, is_raw_format; int width = rect->width; @@ -296,6 +294,7 @@ static int mt9m111_setup_rect(struct soc_camera_device *icd, static int mt9m111_setup_pixfmt(struct soc_camera_device *icd, u16 outfmt) { + struct i2c_client *client = to_i2c_client(icd->control); int ret; ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt); @@ -357,12 +356,13 @@ static int mt9m111_setfmt_yuv(struct soc_camera_device *icd) static int mt9m111_enable(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); - struct soc_camera_link *icl = mt9m111->client->dev.platform_data; + struct soc_camera_link *icl = client->dev.platform_data; int ret; if (icl->power) { - ret = icl->power(&mt9m111->client->dev, 1); + ret = icl->power(&client->dev, 1); if (ret < 0) { dev_err(icd->vdev->parent, "Platform failed to power-on the camera.\n"); @@ -378,8 +378,9 @@ static int mt9m111_enable(struct soc_camera_device *icd) static int mt9m111_disable(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); - struct soc_camera_link *icl = mt9m111->client->dev.platform_data; + struct soc_camera_link *icl = client->dev.platform_data; int ret; ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE); @@ -387,15 +388,15 @@ static int mt9m111_disable(struct soc_camera_device *icd) mt9m111->powered = 0; if (icl->power) - icl->power(&mt9m111->client->dev, 0); + icl->power(&client->dev, 0); return ret; } static int mt9m111_reset(struct soc_camera_device *icd) { - struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); - struct soc_camera_link *icl = mt9m111->client->dev.platform_data; + struct i2c_client *client = to_i2c_client(icd->control); + struct soc_camera_link *icl = client->dev.platform_data; int ret; ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); @@ -406,7 +407,7 @@ static int mt9m111_reset(struct soc_camera_device *icd) | MT9M111_RESET_RESET_SOC); if (icl->reset) - icl->reset(&mt9m111->client->dev); + icl->reset(&client->dev); return ret; } @@ -562,15 +563,14 @@ static int mt9m111_get_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { int val; - - struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) return -EINVAL; - if (reg->match.addr != mt9m111->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; - val = mt9m111_reg_read(icd, reg->reg); + val = mt9m111_reg_read(client, reg->reg); reg->size = 2; reg->val = (u64)val; @@ -583,15 +583,15 @@ static int mt9m111_get_register(struct soc_camera_device *icd, static int mt9m111_set_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff) return -EINVAL; - if (reg->match.addr != mt9m111->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; - if (mt9m111_reg_write(icd, reg->reg, reg->val) < 0) + if (mt9m111_reg_write(client, reg->reg, reg->val) < 0) return -EIO; return 0; @@ -672,6 +672,7 @@ static struct soc_camera_ops mt9m111_ops = { static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); int ret; @@ -692,6 +693,7 @@ static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask) static int mt9m111_get_global_gain(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); int data; data = reg_read(GLOBAL_GAIN); @@ -703,6 +705,7 @@ static int mt9m111_get_global_gain(struct soc_camera_device *icd) static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain) { + struct i2c_client *client = to_i2c_client(icd->control); u16 val; if (gain > 63 * 2 * 2) @@ -721,6 +724,7 @@ static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain) static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); int ret; @@ -737,6 +741,7 @@ static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on) static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); int ret; @@ -754,6 +759,7 @@ static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on) static int mt9m111_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); int data; @@ -898,6 +904,7 @@ static int mt9m111_release(struct soc_camera_device *icd) */ static int mt9m111_video_probe(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); s32 data; int ret; diff --git a/linux/drivers/media/video/mt9t031.c b/linux/drivers/media/video/mt9t031.c index f4e597e6c..381dd0fbe 100644 --- a/linux/drivers/media/video/mt9t031.c +++ b/linux/drivers/media/video/mt9t031.c @@ -76,64 +76,61 @@ struct mt9t031 { u16 yskip; }; -static int reg_read(struct soc_camera_device *icd, const u8 reg) +static int reg_read(struct i2c_client *client, const u8 reg) { - struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); - struct i2c_client *client = mt9t031->client; s32 data = i2c_smbus_read_word_data(client, reg); return data < 0 ? data : swab16(data); } -static int reg_write(struct soc_camera_device *icd, const u8 reg, +static int reg_write(struct i2c_client *client, const u8 reg, const u16 data) { - struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); - return i2c_smbus_write_word_data(mt9t031->client, reg, swab16(data)); + return i2c_smbus_write_word_data(client, reg, swab16(data)); } -static int reg_set(struct soc_camera_device *icd, const u8 reg, +static int reg_set(struct i2c_client *client, const u8 reg, const u16 data) { int ret; - ret = reg_read(icd, reg); + ret = reg_read(client, reg); if (ret < 0) return ret; - return reg_write(icd, reg, ret | data); + return reg_write(client, reg, ret | data); } -static int reg_clear(struct soc_camera_device *icd, const u8 reg, +static int reg_clear(struct i2c_client *client, const u8 reg, const u16 data) { int ret; - ret = reg_read(icd, reg); + ret = reg_read(client, reg); if (ret < 0) return ret; - return reg_write(icd, reg, ret & ~data); + return reg_write(client, reg, ret & ~data); } -static int set_shutter(struct soc_camera_device *icd, const u32 data) +static int set_shutter(struct i2c_client *client, const u32 data) { int ret; - ret = reg_write(icd, MT9T031_SHUTTER_WIDTH_UPPER, data >> 16); + ret = reg_write(client, MT9T031_SHUTTER_WIDTH_UPPER, data >> 16); if (ret >= 0) - ret = reg_write(icd, MT9T031_SHUTTER_WIDTH, data & 0xffff); + ret = reg_write(client, MT9T031_SHUTTER_WIDTH, data & 0xffff); return ret; } -static int get_shutter(struct soc_camera_device *icd, u32 *data) +static int get_shutter(struct i2c_client *client, u32 *data) { int ret; - ret = reg_read(icd, MT9T031_SHUTTER_WIDTH_UPPER); + ret = reg_read(client, MT9T031_SHUTTER_WIDTH_UPPER); *data = ret << 16; if (ret >= 0) - ret = reg_read(icd, MT9T031_SHUTTER_WIDTH); + ret = reg_read(client, MT9T031_SHUTTER_WIDTH); *data |= ret & 0xffff; return ret < 0 ? ret : 0; @@ -141,12 +138,12 @@ static int get_shutter(struct soc_camera_device *icd, u32 *data) static int mt9t031_init(struct soc_camera_device *icd) { - struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); - struct soc_camera_link *icl = mt9t031->client->dev.platform_data; + struct i2c_client *client = to_i2c_client(icd->control); + struct soc_camera_link *icl = client->dev.platform_data; int ret; if (icl->power) { - ret = icl->power(&mt9t031->client->dev, 1); + ret = icl->power(&client->dev, 1); if (ret < 0) { dev_err(icd->vdev->parent, "Platform failed to power-on the camera.\n"); @@ -155,44 +152,48 @@ static int mt9t031_init(struct soc_camera_device *icd) } /* Disable chip output, synchronous option update */ - ret = reg_write(icd, MT9T031_RESET, 1); + ret = reg_write(client, MT9T031_RESET, 1); if (ret >= 0) - ret = reg_write(icd, MT9T031_RESET, 0); + ret = reg_write(client, MT9T031_RESET, 0); if (ret >= 0) - ret = reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2); + ret = reg_clear(client, MT9T031_OUTPUT_CONTROL, 2); if (ret < 0 && icl->power) - icl->power(&mt9t031->client->dev, 0); + icl->power(&client->dev, 0); return ret >= 0 ? 0 : -EIO; } static int mt9t031_release(struct soc_camera_device *icd) { - struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); - struct soc_camera_link *icl = mt9t031->client->dev.platform_data; + struct i2c_client *client = to_i2c_client(icd->control); + struct soc_camera_link *icl = client->dev.platform_data; /* Disable the chip */ - reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2); + reg_clear(client, MT9T031_OUTPUT_CONTROL, 2); if (icl->power) - icl->power(&mt9t031->client->dev, 0); + icl->power(&client->dev, 0); return 0; } static int mt9t031_start_capture(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); + /* Switch to master "normal" mode */ - if (reg_set(icd, MT9T031_OUTPUT_CONTROL, 2) < 0) + if (reg_set(client, MT9T031_OUTPUT_CONTROL, 2) < 0) return -EIO; return 0; } static int mt9t031_stop_capture(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); + /* Stop sensor readout */ - if (reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2) < 0) + if (reg_clear(client, MT9T031_OUTPUT_CONTROL, 2) < 0) return -EIO; return 0; } @@ -200,14 +201,16 @@ static int mt9t031_stop_capture(struct soc_camera_device *icd) static int mt9t031_set_bus_param(struct soc_camera_device *icd, unsigned long flags) { + struct i2c_client *client = to_i2c_client(icd->control); + /* The caller should have queried our parameters, check anyway */ if (flags & ~MT9T031_BUS_PARAM) return -EINVAL; if (flags & SOCAM_PCLK_SAMPLE_FALLING) - reg_clear(icd, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000); + reg_clear(client, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000); else - reg_set(icd, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000); + reg_set(client, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000); return 0; } @@ -235,6 +238,7 @@ static void recalculate_limits(struct soc_camera_device *icd, static int mt9t031_set_params(struct soc_camera_device *icd, struct v4l2_rect *rect, u16 xskip, u16 yskip) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); int ret; u16 xbin, ybin, width, height, left, top; @@ -277,22 +281,22 @@ static int mt9t031_set_params(struct soc_camera_device *icd, } /* Disable register update, reconfigure atomically */ - ret = reg_set(icd, MT9T031_OUTPUT_CONTROL, 1); + ret = reg_set(client, MT9T031_OUTPUT_CONTROL, 1); if (ret < 0) return ret; /* Blanking and start values - default... */ - ret = reg_write(icd, MT9T031_HORIZONTAL_BLANKING, hblank); + ret = reg_write(client, MT9T031_HORIZONTAL_BLANKING, hblank); if (ret >= 0) - ret = reg_write(icd, MT9T031_VERTICAL_BLANKING, vblank); + ret = reg_write(client, MT9T031_VERTICAL_BLANKING, vblank); if (yskip != mt9t031->yskip || xskip != mt9t031->xskip) { /* Binning, skipping */ if (ret >= 0) - ret = reg_write(icd, MT9T031_COLUMN_ADDRESS_MODE, + ret = reg_write(client, MT9T031_COLUMN_ADDRESS_MODE, ((xbin - 1) << 4) | (xskip - 1)); if (ret >= 0) - ret = reg_write(icd, MT9T031_ROW_ADDRESS_MODE, + ret = reg_write(client, MT9T031_ROW_ADDRESS_MODE, ((ybin - 1) << 4) | (yskip - 1)); } dev_dbg(&icd->dev, "new physical left %u, top %u\n", left, top); @@ -300,16 +304,16 @@ static int mt9t031_set_params(struct soc_camera_device *icd, /* The caller provides a supported format, as guaranteed by * icd->try_fmt_cap(), soc_camera_s_crop() and soc_camera_cropcap() */ if (ret >= 0) - ret = reg_write(icd, MT9T031_COLUMN_START, left); + ret = reg_write(client, MT9T031_COLUMN_START, left); if (ret >= 0) - ret = reg_write(icd, MT9T031_ROW_START, top); + ret = reg_write(client, MT9T031_ROW_START, top); if (ret >= 0) - ret = reg_write(icd, MT9T031_WINDOW_WIDTH, width - 1); + ret = reg_write(client, MT9T031_WINDOW_WIDTH, width - 1); if (ret >= 0) - ret = reg_write(icd, MT9T031_WINDOW_HEIGHT, + ret = reg_write(client, MT9T031_WINDOW_HEIGHT, height + icd->y_skip_top - 1); if (ret >= 0 && mt9t031->autoexposure) { - ret = set_shutter(icd, height + icd->y_skip_top + vblank); + ret = set_shutter(client, height + icd->y_skip_top + vblank); if (ret >= 0) { const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank; const struct v4l2_queryctrl *qctrl = @@ -324,7 +328,7 @@ static int mt9t031_set_params(struct soc_camera_device *icd, /* Re-enable register update, commit all changes */ if (ret >= 0) - ret = reg_clear(icd, MT9T031_OUTPUT_CONTROL, 1); + ret = reg_clear(client, MT9T031_OUTPUT_CONTROL, 1); return ret < 0 ? ret : 0; } @@ -417,15 +421,15 @@ static int mt9t031_get_chip_id(struct soc_camera_device *icd, static int mt9t031_get_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) return -EINVAL; - if (reg->match.addr != mt9t031->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; - reg->val = reg_read(icd, reg->reg); + reg->val = reg_read(client, reg->reg); if (reg->val > 0xffff) return -EIO; @@ -436,15 +440,15 @@ static int mt9t031_get_register(struct soc_camera_device *icd, static int mt9t031_set_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) return -EINVAL; - if (reg->match.addr != mt9t031->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; - if (reg_write(icd, reg->reg, reg->val) < 0) + if (reg_write(client, reg->reg, reg->val) < 0) return -EIO; return 0; @@ -528,18 +532,19 @@ static struct soc_camera_ops mt9t031_ops = { static int mt9t031_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); int data; switch (ctrl->id) { case V4L2_CID_VFLIP: - data = reg_read(icd, MT9T031_READ_MODE_2); + data = reg_read(client, MT9T031_READ_MODE_2); if (data < 0) return -EIO; ctrl->value = !!(data & 0x8000); break; case V4L2_CID_HFLIP: - data = reg_read(icd, MT9T031_READ_MODE_2); + data = reg_read(client, MT9T031_READ_MODE_2); if (data < 0) return -EIO; ctrl->value = !!(data & 0x4000); @@ -553,6 +558,7 @@ static int mt9t031_get_control(struct soc_camera_device *icd, struct v4l2_contro static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); const struct v4l2_queryctrl *qctrl; int data; @@ -565,17 +571,17 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro switch (ctrl->id) { case V4L2_CID_VFLIP: if (ctrl->value) - data = reg_set(icd, MT9T031_READ_MODE_2, 0x8000); + data = reg_set(client, MT9T031_READ_MODE_2, 0x8000); else - data = reg_clear(icd, MT9T031_READ_MODE_2, 0x8000); + data = reg_clear(client, MT9T031_READ_MODE_2, 0x8000); if (data < 0) return -EIO; break; case V4L2_CID_HFLIP: if (ctrl->value) - data = reg_set(icd, MT9T031_READ_MODE_2, 0x4000); + data = reg_set(client, MT9T031_READ_MODE_2, 0x4000); else - data = reg_clear(icd, MT9T031_READ_MODE_2, 0x4000); + data = reg_clear(client, MT9T031_READ_MODE_2, 0x4000); if (data < 0) return -EIO; break; @@ -589,7 +595,7 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range; dev_dbg(&icd->dev, "Setting gain %d\n", data); - data = reg_write(icd, MT9T031_GLOBAL_GAIN, data); + data = reg_write(client, MT9T031_GLOBAL_GAIN, data); if (data < 0) return -EIO; } else { @@ -609,8 +615,8 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro data = (((gain - 64 + 7) * 32) & 0xff00) | 0x60; dev_dbg(&icd->dev, "Setting gain from 0x%x to 0x%x\n", - reg_read(icd, MT9T031_GLOBAL_GAIN), data); - data = reg_write(icd, MT9T031_GLOBAL_GAIN, data); + reg_read(client, MT9T031_GLOBAL_GAIN), data); + data = reg_write(client, MT9T031_GLOBAL_GAIN, data); if (data < 0) return -EIO; } @@ -628,10 +634,10 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro range / 2) / range + 1; u32 old; - get_shutter(icd, &old); + get_shutter(client, &old); dev_dbg(&icd->dev, "Setting shutter width from %u to %u\n", old, shutter); - if (set_shutter(icd, shutter) < 0) + if (set_shutter(client, shutter) < 0) return -EIO; icd->exposure = ctrl->value; mt9t031->autoexposure = 0; @@ -641,7 +647,7 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro if (ctrl->value) { const u16 vblank = MT9T031_VERTICAL_BLANK; const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank; - if (set_shutter(icd, icd->height + + if (set_shutter(client, icd->height + icd->y_skip_top + vblank) < 0) return -EIO; qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE); @@ -661,6 +667,7 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro * this wasn't our capture interface, so, we wait for the right one */ static int mt9t031_video_probe(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); s32 data; int ret; @@ -672,11 +679,11 @@ static int mt9t031_video_probe(struct soc_camera_device *icd) return -ENODEV; /* Enable the chip */ - data = reg_write(icd, MT9T031_CHIP_ENABLE, 1); + data = reg_write(client, MT9T031_CHIP_ENABLE, 1); dev_dbg(&icd->dev, "write: %d\n", data); /* Read out the chip version register */ - data = reg_read(icd, MT9T031_CHIP_VERSION); + data = reg_read(client, MT9T031_CHIP_VERSION); switch (data) { case 0x1621: diff --git a/linux/drivers/media/video/mt9v022.c b/linux/drivers/media/video/mt9v022.c index 07ffd967e..016bcdfcf 100644 --- a/linux/drivers/media/video/mt9v022.c +++ b/linux/drivers/media/video/mt9v022.c @@ -91,51 +91,49 @@ struct mt9v022 { u16 chip_control; }; -static int reg_read(struct soc_camera_device *icd, const u8 reg) +static int reg_read(struct i2c_client *client, const u8 reg) { - struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); - struct i2c_client *client = mt9v022->client; s32 data = i2c_smbus_read_word_data(client, reg); return data < 0 ? data : swab16(data); } -static int reg_write(struct soc_camera_device *icd, const u8 reg, +static int reg_write(struct i2c_client *client, const u8 reg, const u16 data) { - struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); - return i2c_smbus_write_word_data(mt9v022->client, reg, swab16(data)); + return i2c_smbus_write_word_data(client, reg, swab16(data)); } -static int reg_set(struct soc_camera_device *icd, const u8 reg, +static int reg_set(struct i2c_client *client, const u8 reg, const u16 data) { int ret; - ret = reg_read(icd, reg); + ret = reg_read(client, reg); if (ret < 0) return ret; - return reg_write(icd, reg, ret | data); + return reg_write(client, reg, ret | data); } -static int reg_clear(struct soc_camera_device *icd, const u8 reg, +static int reg_clear(struct i2c_client *client, const u8 reg, const u16 data) { int ret; - ret = reg_read(icd, reg); + ret = reg_read(client, reg); if (ret < 0) return ret; - return reg_write(icd, reg, ret & ~data); + return reg_write(client, reg, ret & ~data); } static int mt9v022_init(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); - struct soc_camera_link *icl = mt9v022->client->dev.platform_data; + struct soc_camera_link *icl = client->dev.platform_data; int ret; if (icl->power) { - ret = icl->power(&mt9v022->client->dev, 1); + ret = icl->power(&client->dev, 1); if (ret < 0) { dev_err(icd->vdev->parent, "Platform failed to power-on the camera.\n"); @@ -148,27 +146,27 @@ static int mt9v022_init(struct soc_camera_device *icd) * if available. Soft reset is done in video_probe(). */ if (icl->reset) - icl->reset(&mt9v022->client->dev); + icl->reset(&client->dev); /* Almost the default mode: master, parallel, simultaneous, and an * undocumented bit 0x200, which is present in table 7, but not in 8, * plus snapshot mode to disable scan for now */ mt9v022->chip_control |= 0x10; - ret = reg_write(icd, MT9V022_CHIP_CONTROL, mt9v022->chip_control); + ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); if (!ret) - ret = reg_write(icd, MT9V022_READ_MODE, 0x300); + ret = reg_write(client, MT9V022_READ_MODE, 0x300); /* All defaults */ if (!ret) /* AEC, AGC on */ - ret = reg_set(icd, MT9V022_AEC_AGC_ENABLE, 0x3); + ret = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x3); if (!ret) - ret = reg_write(icd, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, 480); + ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, 480); if (!ret) /* default - auto */ - ret = reg_clear(icd, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1); + ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1); if (!ret) - ret = reg_write(icd, MT9V022_DIGITAL_TEST_PATTERN, 0); + ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0); return ret; } @@ -186,10 +184,11 @@ static int mt9v022_release(struct soc_camera_device *icd) static int mt9v022_start_capture(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); /* Switch to master "normal" mode */ mt9v022->chip_control &= ~0x10; - if (reg_write(icd, MT9V022_CHIP_CONTROL, + if (reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control) < 0) return -EIO; return 0; @@ -197,10 +196,11 @@ static int mt9v022_start_capture(struct soc_camera_device *icd) static int mt9v022_stop_capture(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); /* Switch to snapshot mode */ mt9v022->chip_control |= 0x10; - if (reg_write(icd, MT9V022_CHIP_CONTROL, + if (reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control) < 0) return -EIO; return 0; @@ -209,8 +209,9 @@ static int mt9v022_stop_capture(struct soc_camera_device *icd) static int mt9v022_set_bus_param(struct soc_camera_device *icd, unsigned long flags) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); - struct soc_camera_link *icl = mt9v022->client->dev.platform_data; + struct soc_camera_link *icl = client->dev.platform_data; unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK; int ret; u16 pixclk = 0; @@ -243,14 +244,14 @@ static int mt9v022_set_bus_param(struct soc_camera_device *icd, if (!(flags & SOCAM_VSYNC_ACTIVE_HIGH)) pixclk |= 0x2; - ret = reg_write(icd, MT9V022_PIXCLK_FV_LV, pixclk); + ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk); if (ret < 0) return ret; if (!(flags & SOCAM_MASTER)) mt9v022->chip_control &= ~0x8; - ret = reg_write(icd, MT9V022_CHIP_CONTROL, mt9v022->chip_control); + ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); if (ret < 0) return ret; @@ -282,35 +283,36 @@ static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd) static int mt9v022_set_crop(struct soc_camera_device *icd, struct v4l2_rect *rect) { + struct i2c_client *client = to_i2c_client(icd->control); int ret; /* Like in example app. Contradicts the datasheet though */ - ret = reg_read(icd, MT9V022_AEC_AGC_ENABLE); + ret = reg_read(client, MT9V022_AEC_AGC_ENABLE); if (ret >= 0) { if (ret & 1) /* Autoexposure */ - ret = reg_write(icd, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, + ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, rect->height + icd->y_skip_top + 43); else - ret = reg_write(icd, MT9V022_TOTAL_SHUTTER_WIDTH, + ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, rect->height + icd->y_skip_top + 43); } /* Setup frame format: defaults apart from width and height */ if (!ret) - ret = reg_write(icd, MT9V022_COLUMN_START, rect->left); + ret = reg_write(client, MT9V022_COLUMN_START, rect->left); if (!ret) - ret = reg_write(icd, MT9V022_ROW_START, rect->top); + ret = reg_write(client, MT9V022_ROW_START, rect->top); if (!ret) /* Default 94, Phytec driver says: * "width + horizontal blank >= 660" */ - ret = reg_write(icd, MT9V022_HORIZONTAL_BLANKING, + ret = reg_write(client, MT9V022_HORIZONTAL_BLANKING, rect->width > 660 - 43 ? 43 : 660 - rect->width); if (!ret) - ret = reg_write(icd, MT9V022_VERTICAL_BLANKING, 45); + ret = reg_write(client, MT9V022_VERTICAL_BLANKING, 45); if (!ret) - ret = reg_write(icd, MT9V022_WINDOW_WIDTH, rect->width); + ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect->width); if (!ret) - ret = reg_write(icd, MT9V022_WINDOW_HEIGHT, + ret = reg_write(client, MT9V022_WINDOW_HEIGHT, rect->height + icd->y_skip_top); if (ret < 0) @@ -396,16 +398,16 @@ static int mt9v022_get_chip_id(struct soc_camera_device *icd, static int mt9v022_get_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) return -EINVAL; - if (reg->match.addr != mt9v022->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; reg->size = 2; - reg->val = reg_read(icd, reg->reg); + reg->val = reg_read(client, reg->reg); if (reg->val > 0xffff) return -EIO; @@ -416,15 +418,15 @@ static int mt9v022_get_register(struct soc_camera_device *icd, static int mt9v022_set_register(struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { - struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); + struct i2c_client *client = to_i2c_client(icd->control); if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) return -EINVAL; - if (reg->match.addr != mt9v022->client->addr) + if (reg->match.addr != client->addr) return -ENODEV; - if (reg_write(icd, reg->reg, reg->val) < 0) + if (reg_write(client, reg->reg, reg->val) < 0) return -EIO; return 0; @@ -517,29 +519,30 @@ static struct soc_camera_ops mt9v022_ops = { static int mt9v022_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { + struct i2c_client *client = to_i2c_client(icd->control); int data; switch (ctrl->id) { case V4L2_CID_VFLIP: - data = reg_read(icd, MT9V022_READ_MODE); + data = reg_read(client, MT9V022_READ_MODE); if (data < 0) return -EIO; ctrl->value = !!(data & 0x10); break; case V4L2_CID_HFLIP: - data = reg_read(icd, MT9V022_READ_MODE); + data = reg_read(client, MT9V022_READ_MODE); if (data < 0) return -EIO; ctrl->value = !!(data & 0x20); break; case V4L2_CID_EXPOSURE_AUTO: - data = reg_read(icd, MT9V022_AEC_AGC_ENABLE); + data = reg_read(client, MT9V022_AEC_AGC_ENABLE); if (data < 0) return -EIO; ctrl->value = !!(data & 0x1); break; case V4L2_CID_AUTOGAIN: - data = reg_read(icd, MT9V022_AEC_AGC_ENABLE); + data = reg_read(client, MT9V022_AEC_AGC_ENABLE); if (data < 0) return -EIO; ctrl->value = !!(data & 0x2); @@ -552,6 +555,7 @@ static int mt9v022_set_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { int data; + struct i2c_client *client = to_i2c_client(icd->control); const struct v4l2_queryctrl *qctrl; qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id); @@ -562,17 +566,17 @@ static int mt9v022_set_control(struct soc_camera_device *icd, switch (ctrl->id) { case V4L2_CID_VFLIP: if (ctrl->value) - data = reg_set(icd, MT9V022_READ_MODE, 0x10); + data = reg_set(client, MT9V022_READ_MODE, 0x10); else - data = reg_clear(icd, MT9V022_READ_MODE, 0x10); + data = reg_clear(client, MT9V022_READ_MODE, 0x10); if (data < 0) return -EIO; break; case V4L2_CID_HFLIP: if (ctrl->value) - data = reg_set(icd, MT9V022_READ_MODE, 0x20); + data = reg_set(client, MT9V022_READ_MODE, 0x20); else - data = reg_clear(icd, MT9V022_READ_MODE, 0x20); + data = reg_clear(client, MT9V022_READ_MODE, 0x20); if (data < 0) return -EIO; break; @@ -593,12 +597,12 @@ static int mt9v022_set_control(struct soc_camera_device *icd, /* The user wants to set gain manually, hope, she * knows, what she's doing... Switch AGC off. */ - if (reg_clear(icd, MT9V022_AEC_AGC_ENABLE, 0x2) < 0) + if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0) return -EIO; dev_info(&icd->dev, "Setting gain from %d to %lu\n", - reg_read(icd, MT9V022_ANALOG_GAIN), gain); - if (reg_write(icd, MT9V022_ANALOG_GAIN, gain) < 0) + reg_read(client, MT9V022_ANALOG_GAIN), gain); + if (reg_write(client, MT9V022_ANALOG_GAIN, gain) < 0) return -EIO; icd->gain = ctrl->value; } @@ -614,13 +618,13 @@ static int mt9v022_set_control(struct soc_camera_device *icd, /* The user wants to set shutter width manually, hope, * she knows, what she's doing... Switch AEC off. */ - if (reg_clear(icd, MT9V022_AEC_AGC_ENABLE, 0x1) < 0) + if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1) < 0) return -EIO; dev_dbg(&icd->dev, "Shutter width from %d to %lu\n", - reg_read(icd, MT9V022_TOTAL_SHUTTER_WIDTH), + reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH), shutter); - if (reg_write(icd, MT9V022_TOTAL_SHUTTER_WIDTH, + if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, shutter) < 0) return -EIO; icd->exposure = ctrl->value; @@ -628,17 +632,17 @@ static int mt9v022_set_control(struct soc_camera_device *icd, break; case V4L2_CID_AUTOGAIN: if (ctrl->value) - data = reg_set(icd, MT9V022_AEC_AGC_ENABLE, 0x2); + data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2); else - data = reg_clear(icd, MT9V022_AEC_AGC_ENABLE, 0x2); + data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2); if (data < 0) return -EIO; break; case V4L2_CID_EXPOSURE_AUTO: if (ctrl->value) - data = reg_set(icd, MT9V022_AEC_AGC_ENABLE, 0x1); + data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1); else - data = reg_clear(icd, MT9V022_AEC_AGC_ENABLE, 0x1); + data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1); if (data < 0) return -EIO; break; @@ -650,8 +654,9 @@ static int mt9v022_set_control(struct soc_camera_device *icd, * this wasn't our capture interface, so, we wait for the right one */ static int mt9v022_video_probe(struct soc_camera_device *icd) { + struct i2c_client *client = to_i2c_client(icd->control); struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); - struct soc_camera_link *icl = mt9v022->client->dev.platform_data; + struct soc_camera_link *icl = client->dev.platform_data; s32 data; int ret; unsigned long flags; @@ -661,7 +666,7 @@ static int mt9v022_video_probe(struct soc_camera_device *icd) return -ENODEV; /* Read out the chip version register */ - data = reg_read(icd, MT9V022_CHIP_VERSION); + data = reg_read(client, MT9V022_CHIP_VERSION); /* must be 0x1311 or 0x1313 */ if (data != 0x1311 && data != 0x1313) { @@ -672,12 +677,12 @@ static int mt9v022_video_probe(struct soc_camera_device *icd) } /* Soft reset */ - ret = reg_write(icd, MT9V022_RESET, 1); + ret = reg_write(client, MT9V022_RESET, 1); if (ret < 0) goto ei2c; /* 15 clock cycles */ udelay(200); - if (reg_read(icd, MT9V022_RESET)) { + if (reg_read(client, MT9V022_RESET)) { dev_err(&icd->dev, "Resetting MT9V022 failed!\n"); goto ei2c; } @@ -685,11 +690,11 @@ static int mt9v022_video_probe(struct soc_camera_device *icd) /* Set monochrome or colour sensor type */ if (sensor_type && (!strcmp("colour", sensor_type) || !strcmp("color", sensor_type))) { - ret = reg_write(icd, MT9V022_PIXEL_OPERATION_MODE, 4 | 0x11); + ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 4 | 0x11); mt9v022->model = V4L2_IDENT_MT9V022IX7ATC; icd->formats = mt9v022_colour_formats; } else { - ret = reg_write(icd, MT9V022_PIXEL_OPERATION_MODE, 0x11); + ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 0x11); mt9v022->model = V4L2_IDENT_MT9V022IX7ATM; icd->formats = mt9v022_monochrome_formats; } -- cgit v1.2.3 From 820b1bf8a59407c1b4171306b9d6577c65d3a016 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:57:42 +0200 Subject: soc-camera: link host drivers after clients From: Guennadi Liakhovetski With the transition of soc-camera to become a platform driver and to the v4l2-subdev framework the initialisation order becomes important. In case of a static build clients (i2c) drivers have to be available when host drivers are probed. Moving host drivers down in the Makefile achieves the desired order. Signed-off-by: Guennadi Liakhovetski --- drivers/media/video/Makefile | 9 +++++---- 1 files changed, 5 insertions(+), 4 deletions(-) --- linux/drivers/media/video/Makefile | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/linux/drivers/media/video/Makefile b/linux/drivers/media/video/Makefile index 3f1a0350a..7aefac643 100644 --- a/linux/drivers/media/video/Makefile +++ b/linux/drivers/media/video/Makefile @@ -134,10 +134,6 @@ obj-$(CONFIG_VIDEO_CX18) += cx18/ obj-$(CONFIG_VIDEO_VIVI) += vivi.o obj-$(CONFIG_VIDEO_CX23885) += cx23885/ -obj-$(CONFIG_VIDEO_MX1) += mx1_camera.o -obj-$(CONFIG_VIDEO_MX3) += mx3_camera.o -obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o -obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o obj-$(CONFIG_VIDEO_OMAP2) += omap2cam.o obj-$(CONFIG_SOC_CAMERA) += soc_camera.o obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o @@ -147,6 +143,11 @@ obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o obj-$(CONFIG_SOC_CAMERA_OV772X) += ov772x.o obj-$(CONFIG_SOC_CAMERA_PLATFORM) += soc_camera_platform.o obj-$(CONFIG_SOC_CAMERA_TW9910) += tw9910.o +# soc-camera host drivers have to be linked after camera drivers +obj-$(CONFIG_VIDEO_MX1) += mx1_camera.o +obj-$(CONFIG_VIDEO_MX3) += mx3_camera.o +obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o +obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o obj-$(CONFIG_VIDEO_AU0828) += au0828/ -- cgit v1.2.3 From c3cc042608813e24ef6a3510cdae6d0924c1be09 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:58:24 +0200 Subject: mx3_camera: Fix compilation with CONFIG_PM From: Sascha Hauer Signed-off-by: Sascha Hauer Signed-off-by: Guennadi Liakhovetski priority: high --- drivers/media/video/mx3_camera.c | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-) --- linux/drivers/media/video/mx3_camera.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/linux/drivers/media/video/mx3_camera.c b/linux/drivers/media/video/mx3_camera.c index cb13faa2e..4d47eeb14 100644 --- a/linux/drivers/media/video/mx3_camera.c +++ b/linux/drivers/media/video/mx3_camera.c @@ -1063,10 +1063,6 @@ static struct soc_camera_host_ops mx3_soc_camera_host_ops = { .owner = THIS_MODULE, .add = mx3_camera_add_device, .remove = mx3_camera_remove_device, -#ifdef CONFIG_PM - .suspend = mx3_camera_suspend, - .resume = mx3_camera_resume, -#endif .set_crop = mx3_camera_set_crop, .set_fmt = mx3_camera_set_fmt, .try_fmt = mx3_camera_try_fmt, -- cgit v1.2.3 From 157f8eb764c03a0d74db15db98790bca85d5f9dd Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Apr 2009 17:58:35 +0200 Subject: pxa_camera: Documentation of the FSM From: Robert Jarzmik After DMA redesign, the pxa_camera dynamic behaviour should be documented so that future contributors understand how it works, and improve it. Signed-off-by: Robert Jarzmik Signed-off-by: Guennadi Liakhovetski --- Documentation/video4linux/pxa_camera.txt | 49 ++++++++++++++++++++++++++++++ 1 files changed, 49 insertions(+), 0 deletions(-) --- linux/Documentation/video4linux/pxa_camera.txt | 49 ++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/linux/Documentation/video4linux/pxa_camera.txt b/linux/Documentation/video4linux/pxa_camera.txt index b1137f9a5..4f6d0ca01 100644 --- a/linux/Documentation/video4linux/pxa_camera.txt +++ b/linux/Documentation/video4linux/pxa_camera.txt @@ -26,6 +26,55 @@ Global video workflow Once the last buffer is filled in, the QCI interface stops. + c) Capture global finite state machine schema + + +----+ +---+ +----+ + | DQ | | Q | | DQ | + | v | v | v + +-----------+ +------------------------+ + | STOP | | Wait for capture start | + +-----------+ Q +------------------------+ ++-> | QCI: stop | ------------------> | QCI: run | <------------+ +| | DMA: stop | | DMA: stop | | +| +-----------+ +-----> +------------------------+ | +| / | | +| / +---+ +----+ | | +|capture list empty / | Q | | DQ | | QCI Irq EOF | +| / | v | v v | +| +--------------------+ +----------------------+ | +| | DMA hotlink missed | | Capture running | | +| +--------------------+ +----------------------+ | +| | QCI: run | +-----> | QCI: run | <-+ | +| | DMA: stop | / | DMA: run | | | +| +--------------------+ / +----------------------+ | Other | +| ^ /DMA still | | channels | +| | capture list / running | DMA Irq End | not | +| | not empty / | | finished | +| | / v | yet | +| +----------------------+ +----------------------+ | | +| | Videobuf released | | Channel completed | | | +| +----------------------+ +----------------------+ | | ++-- | QCI: run | | QCI: run | --+ | + | DMA: run | | DMA: run | | + +----------------------+ +----------------------+ | + ^ / | | + | no overrun / | overrun | + | / v | + +--------------------+ / +----------------------+ | + | Frame completed | / | Frame overran | | + +--------------------+ <-----+ +----------------------+ restart frame | + | QCI: run | | QCI: stop | --------------+ + | DMA: run | | DMA: stop | + +--------------------+ +----------------------+ + + Legend: - each box is a FSM state + - each arrow is the condition to transition to another state + - an arrow with a comment is a mandatory transition (no condition) + - arrow "Q" means : a buffer was enqueued + - arrow "DQ" means : a buffer was dequeued + - "QCI: stop" means the QCI interface is not enabled + - "DMA: stop" means all 3 DMA channels are stopped + - "DMA: run" means at least 1 DMA channel is still running DMA usage --------- -- cgit v1.2.3