From 795e6eb3262d3b7247ce450835eea6df6571d103 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 4 Jan 2012 16:58:44 -0300 Subject: [media] pwc: Remove software emulation of arbritary resolutions The pwc driver claims to support any resolution between 160x120 and 640x480, but emulates this by simply drawing a black border around the image. Userspace can draw its own black border if it really wants one. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pwc/pwc-misc.c | 87 ++++++++++++-------------------------- 1 file changed, 26 insertions(+), 61 deletions(-) (limited to 'drivers/media/video/pwc/pwc-misc.c') diff --git a/drivers/media/video/pwc/pwc-misc.c b/drivers/media/video/pwc/pwc-misc.c index 0b031336eab8..23a55b5814fc 100644 --- a/drivers/media/video/pwc/pwc-misc.c +++ b/drivers/media/video/pwc/pwc-misc.c @@ -27,67 +27,47 @@ #include "pwc.h" -const struct pwc_coord pwc_image_sizes[PSZ_MAX] = +const int pwc_image_sizes[PSZ_MAX][2] = { - { 128, 96, 0 }, /* sqcif */ - { 160, 120, 0 }, /* qsif */ - { 176, 144, 0 }, /* qcif */ - { 320, 240, 0 }, /* sif */ - { 352, 288, 0 }, /* cif */ - { 640, 480, 0 }, /* vga */ + { 128, 96 }, /* sqcif */ + { 160, 120 }, /* qsif */ + { 176, 144 }, /* qcif */ + { 320, 240 }, /* sif */ + { 352, 288 }, /* cif */ + { 640, 480 }, /* vga */ }; /* x,y -> PSZ_ */ -int pwc_decode_size(struct pwc_device *pdev, int width, int height) +int pwc_get_size(struct pwc_device *pdev, int width, int height) { - int i, find; - - /* Make sure we don't go beyond our max size. - NB: we have different limits for RAW and normal modes. In case - you don't have the decompressor loaded or use RAW mode, - the maximum viewable size is smaller. - */ - if (pdev->pixfmt != V4L2_PIX_FMT_YUV420) - { - if (width > pdev->abs_max.x || height > pdev->abs_max.y) - { - PWC_DEBUG_SIZE("VIDEO_PALETTE_RAW: going beyond abs_max.\n"); - return -1; - } - } - else - { - if (width > pdev->view_max.x || height > pdev->view_max.y) - { - PWC_DEBUG_SIZE("VIDEO_PALETTE_not RAW: going beyond view_max.\n"); - return -1; - } - } + int i; /* Find the largest size supported by the camera that fits into the - requested size. - */ - find = -1; + requested size. */ + for (i = PSZ_MAX - 1; i >= 0; i--) { + if (!(pdev->image_mask & (1 << i))) + continue; + + if (pwc_image_sizes[i][0] <= width && + pwc_image_sizes[i][1] <= height) + return i; + } + + /* No mode found, return the smallest mode we have */ for (i = 0; i < PSZ_MAX; i++) { - if (pdev->image_mask & (1 << i)) { - if (pwc_image_sizes[i].x <= width && pwc_image_sizes[i].y <= height) - find = i; - } + if (pdev->image_mask & (1 << i)) + return i; } - return find; + + /* Never reached there always is atleast one supported mode */ + return 0; } -/* initialize variables depending on type and decompressor*/ +/* initialize variables depending on type and decompressor */ void pwc_construct(struct pwc_device *pdev) { if (DEVICE_USE_CODEC1(pdev->type)) { - pdev->view_min.x = 128; - pdev->view_min.y = 96; - pdev->view_max.x = 352; - pdev->view_max.y = 288; - pdev->abs_max.x = 352; - pdev->abs_max.y = 288; pdev->image_mask = 1 << PSZ_SQCIF | 1 << PSZ_QCIF | 1 << PSZ_CIF; pdev->vcinterface = 2; pdev->vendpoint = 4; @@ -96,13 +76,7 @@ void pwc_construct(struct pwc_device *pdev) } else if (DEVICE_USE_CODEC3(pdev->type)) { - pdev->view_min.x = 160; - pdev->view_min.y = 120; - pdev->view_max.x = 640; - pdev->view_max.y = 480; pdev->image_mask = 1 << PSZ_QSIF | 1 << PSZ_SIF | 1 << PSZ_VGA; - pdev->abs_max.x = 640; - pdev->abs_max.y = 480; pdev->vcinterface = 3; pdev->vendpoint = 5; pdev->frame_header_size = TOUCAM_HEADER_SIZE; @@ -110,20 +84,11 @@ void pwc_construct(struct pwc_device *pdev) } else /* if (DEVICE_USE_CODEC2(pdev->type)) */ { - pdev->view_min.x = 128; - pdev->view_min.y = 96; - /* Anthill bug #38: PWC always reports max size, even without PWCX */ - pdev->view_max.x = 640; - pdev->view_max.y = 480; pdev->image_mask = 1 << PSZ_SQCIF | 1 << PSZ_QSIF | 1 << PSZ_QCIF | 1 << PSZ_SIF | 1 << PSZ_CIF | 1 << PSZ_VGA; - pdev->abs_max.x = 640; - pdev->abs_max.y = 480; pdev->vcinterface = 3; pdev->vendpoint = 4; pdev->frame_header_size = 0; pdev->frame_trailer_size = 0; } pdev->pixfmt = V4L2_PIX_FMT_YUV420; /* default */ - pdev->view_min.size = pdev->view_min.x * pdev->view_min.y; - pdev->view_max.size = pdev->view_max.x * pdev->view_max.y; } -- cgit v1.2.3 From d167a85c5fb45b1ecdacdb9b7733833a9af78da8 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 10 Jan 2012 13:01:41 -0300 Subject: [media] pwc: Fix pixfmt handling Before this patch various code in the mode setting patch checked pdev->pixfmt, but that was not set until the mode setting succeeded, so it was looking at the old pixfmt! This patch fixes this by making the pixfmt a parameter to set_video_mode, and setting it from set_video_mode on success. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pwc/pwc-ctrl.c | 39 +++++++++++++++++++------------------- drivers/media/video/pwc/pwc-if.c | 5 +++-- drivers/media/video/pwc/pwc-misc.c | 1 - drivers/media/video/pwc/pwc-v4l.c | 13 ++++--------- drivers/media/video/pwc/pwc.h | 2 +- 5 files changed, 28 insertions(+), 32 deletions(-) (limited to 'drivers/media/video/pwc/pwc-misc.c') diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c index 34a01b209251..51ab4c570d0b 100644 --- a/drivers/media/video/pwc/pwc-ctrl.c +++ b/drivers/media/video/pwc/pwc-ctrl.c @@ -168,8 +168,8 @@ int send_control_msg(struct pwc_device *pdev, request, value, pdev->vcinterface, buf, buflen); } -static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames, - int *compression) +static int set_video_mode_Nala(struct pwc_device *pdev, int size, int pixfmt, + int frames, int *compression) { unsigned char buf[3]; int ret, fps; @@ -212,14 +212,14 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames, PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret); return ret; } - if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) { + if (pEntry->compressed && pixfmt == V4L2_PIX_FMT_YUV420) pwc_dec1_init(pdev, buf); - } pdev->cmd_len = 3; memcpy(pdev->cmd_buf, buf, 3); /* Set various parameters */ + pdev->pixfmt = pixfmt; pdev->vframes = frames; pdev->valternate = pEntry->alternate; pdev->width = pwc_image_sizes[size][0]; @@ -245,8 +245,8 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames, } -static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, - int *compression) +static int set_video_mode_Timon(struct pwc_device *pdev, int size, int pixfmt, + int frames, int *compression) { unsigned char buf[13]; const struct Timon_table_entry *pChoose; @@ -278,14 +278,14 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, if (ret < 0) return ret; - if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) { + if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420) pwc_dec23_init(pdev, buf); - } pdev->cmd_len = 13; memcpy(pdev->cmd_buf, buf, 13); /* Set various parameters */ + pdev->pixfmt = pixfmt; pdev->vframes = (fps + 1) * 5; pdev->valternate = pChoose->alternate; pdev->width = pwc_image_sizes[size][0]; @@ -299,8 +299,8 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, } -static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, - int *compression) +static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int pixfmt, + int frames, int *compression) { const struct Kiara_table_entry *pChoose = NULL; int fps, ret; @@ -336,13 +336,13 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, if (ret < 0) return ret; - if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) { + if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420) pwc_dec23_init(pdev, buf); - } pdev->cmd_len = 12; memcpy(pdev->cmd_buf, buf, 12); /* All set and go */ + pdev->pixfmt = pixfmt; pdev->vframes = (fps + 1) * 5; pdev->valternate = pChoose->alternate; pdev->width = pwc_image_sizes[size][0]; @@ -358,23 +358,24 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, } int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, - int frames, int *compression) + int pixfmt, int frames, int *compression) { int ret, size; PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n", - width, height, frames, pdev->pixfmt); + width, height, frames, pixfmt); size = pwc_get_size(pdev, width, height); PWC_TRACE("decode_size = %d.\n", size); if (DEVICE_USE_CODEC1(pdev->type)) { - ret = set_video_mode_Nala(pdev, size, frames, compression); - + ret = set_video_mode_Nala(pdev, size, pixfmt, frames, + compression); } else if (DEVICE_USE_CODEC3(pdev->type)) { - ret = set_video_mode_Kiara(pdev, size, frames, compression); - + ret = set_video_mode_Kiara(pdev, size, pixfmt, frames, + compression); } else { - ret = set_video_mode_Timon(pdev, size, frames, compression); + ret = set_video_mode_Timon(pdev, size, pixfmt, frames, + compression); } if (ret < 0) { PWC_ERROR("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret); diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c index 250ad4c3e9d8..1f3386da05fa 100644 --- a/drivers/media/video/pwc/pwc-if.c +++ b/drivers/media/video/pwc/pwc-if.c @@ -386,7 +386,7 @@ retry: /* We first try with low compression and then retry with a higher compression setting if there is not enough bandwidth. */ ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, - pdev->vframes, &compression); + pdev->pixfmt, pdev->vframes, &compression); /* Get the current alternate interface, adjust packet size */ intf = usb_ifnum_to_if(udev, 0); @@ -1128,7 +1128,8 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id pwc_set_leds(pdev, 0, 0); /* Setup intial videomode */ - rc = pwc_set_video_mode(pdev, MAX_WIDTH, MAX_HEIGHT, 30, &compression); + rc = pwc_set_video_mode(pdev, MAX_WIDTH, MAX_HEIGHT, + V4L2_PIX_FMT_YUV420, 30, &compression); if (rc) goto err_free_mem; diff --git a/drivers/media/video/pwc/pwc-misc.c b/drivers/media/video/pwc/pwc-misc.c index 23a55b5814fc..9be5adffa874 100644 --- a/drivers/media/video/pwc/pwc-misc.c +++ b/drivers/media/video/pwc/pwc-misc.c @@ -90,5 +90,4 @@ void pwc_construct(struct pwc_device *pdev) pdev->frame_header_size = 0; pdev->frame_trailer_size = 0; } - pdev->pixfmt = V4L2_PIX_FMT_YUV420; /* default */ } diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c index ef422d0ac599..b275fad2927b 100644 --- a/drivers/media/video/pwc/pwc-v4l.c +++ b/drivers/media/video/pwc/pwc-v4l.c @@ -493,16 +493,11 @@ static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) (pixelformat>>24)&255); ret = pwc_set_video_mode(pdev, f->fmt.pix.width, f->fmt.pix.height, - 30, &compression); + pixelformat, 30, &compression); PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret); - if (ret == 0) { - pdev->pixfmt = pixelformat; - pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, - pdev->pixfmt); - } - + pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt); leave: mutex_unlock(&pdev->udevlock); return ret; @@ -1141,8 +1136,8 @@ static int pwc_s_parm(struct file *file, void *fh, goto leave; } - ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, fps, - &compression); + ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, pdev->pixfmt, + fps, &compression); pwc_g_parm(file, fh, parm); diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h index 0f3bc1b3a971..29b6d3dca83b 100644 --- a/drivers/media/video/pwc/pwc.h +++ b/drivers/media/video/pwc/pwc.h @@ -369,7 +369,7 @@ void pwc_construct(struct pwc_device *pdev); /** Functions in pwc-ctrl.c */ /* Request a certain video mode. Returns < 0 if not possible */ extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, - int frames, int *compression); + int pixfmt, int frames, int *compression); extern unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size); extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value); extern int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor); -- cgit v1.2.3