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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-22 19:54:53 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-22 20:01:40 (GMT) |
commit | ae19ffbadc1b2100285a5b5b3d0a4e0a11390904 (patch) | |
tree | 3c2086ab67398a019089a47ca3f362a4bc6db74f /drivers/media/video/em28xx/em28xx-video.c | |
parent | 34e84f39a27d059a3e6ec6e8b94aafa702e6f220 (diff) | |
parent | 9173a8ef24a6b1b8031507b35b8ffe5f85a87692 (diff) | |
download | linux-fsl-qoriq-ae19ffbadc1b2100285a5b5b3d0a4e0a11390904.tar.xz |
Merge branch 'master' into for-linus
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-video.c')
-rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 161 |
1 files changed, 102 insertions, 59 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index ab079d9..a6bdbc2 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -124,7 +124,7 @@ static struct em28xx_fmt format[] = { /* supported controls */ /* Common to all boards */ -static struct v4l2_queryctrl em28xx_qctrl[] = { +static struct v4l2_queryctrl ac97_qctrl[] = { { .id = V4L2_CID_AUDIO_VOLUME, .type = V4L2_CTRL_TYPE_INTEGER, @@ -133,7 +133,7 @@ static struct v4l2_queryctrl em28xx_qctrl[] = { .maximum = 0x1f, .step = 0x1, .default_value = 0x1f, - .flags = 0, + .flags = V4L2_CTRL_FLAG_SLIDER, }, { .id = V4L2_CID_AUDIO_MUTE, .type = V4L2_CTRL_TYPE_BOOLEAN, @@ -609,10 +609,29 @@ static void res_free(struct em28xx_fh *fh) } /* - * em28xx_get_ctrl() - * return the current saturation, brightness or contrast, mute state + * ac97_queryctrl() + * return the ac97 supported controls */ -static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) +static int ac97_queryctrl(struct v4l2_queryctrl *qc) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) { + if (qc->id && qc->id == ac97_qctrl[i].id) { + memcpy(qc, &(ac97_qctrl[i]), sizeof(*qc)); + return 0; + } + } + + /* Control is not ac97 related */ + return 1; +} + +/* + * ac97_get_ctrl() + * return the current values for ac97 mute and volume + */ +static int ac97_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) { switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -622,29 +641,41 @@ static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) ctrl->value = dev->volume; return 0; default: - return -EINVAL; + /* Control is not ac97 related */ + return 1; } } /* - * em28xx_set_ctrl() - * mute or set new saturation, brightness or contrast + * ac97_set_ctrl() + * set values for ac97 mute and volume */ -static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) +static int ac97_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) { + int i; + + for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) + if (ctrl->id == ac97_qctrl[i].id) + goto handle; + + /* Announce that hasn't handle it */ + return 1; + +handle: + if (ctrl->value < ac97_qctrl[i].minimum || + ctrl->value > ac97_qctrl[i].maximum) + return -ERANGE; + switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: - if (ctrl->value != dev->mute) { - dev->mute = ctrl->value; - return em28xx_audio_analog_set(dev); - } - return 0; + dev->mute = ctrl->value; + break; case V4L2_CID_AUDIO_VOLUME: dev->volume = ctrl->value; - return em28xx_audio_analog_set(dev); - default: - return -EINVAL; + break; } + + return em28xx_audio_analog_set(dev); } static int check_dev(struct em28xx *dev) @@ -974,6 +1005,9 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; + if (!dev->audio_mode.has_audio) + return -EINVAL; + switch (a->index) { case EM28XX_AMUX_VIDEO: strcpy(a->name, "Television"); @@ -1015,6 +1049,9 @@ static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) struct em28xx *dev = fh->dev; + if (!dev->audio_mode.has_audio) + return -EINVAL; + if (a->index >= MAX_EM28XX_INPUT) return -EINVAL; if (0 == INPUT(a->index)->type) @@ -1038,7 +1075,6 @@ static int vidioc_queryctrl(struct file *file, void *priv, struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; int id = qc->id; - int i; int rc; rc = check_dev(dev); @@ -1049,15 +1085,14 @@ static int vidioc_queryctrl(struct file *file, void *priv, qc->id = id; - if (!dev->board.has_msp34xx) { - for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { - if (qc->id && qc->id == em28xx_qctrl[i].id) { - memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); - return 0; - } - } + /* enumberate AC97 controls */ + if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { + rc = ac97_queryctrl(qc); + if (!rc) + return 0; } + /* enumberate V4L2 device controls */ mutex_lock(&dev->lock); v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc); mutex_unlock(&dev->lock); @@ -1082,14 +1117,16 @@ static int vidioc_g_ctrl(struct file *file, void *priv, mutex_lock(&dev->lock); - if (dev->board.has_msp34xx) + /* Set an AC97 control */ + if (dev->audio_mode.ac97 != EM28XX_NO_AC97) + rc = ac97_get_ctrl(dev, ctrl); + else + rc = 1; + + /* It were not an AC97 control. Sends it to the v4l2 dev interface */ + if (rc == 1) { v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl); - else { - rc = em28xx_get_ctrl(dev, ctrl); - if (rc < 0) { - v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl); - rc = 0; - } + rc = 0; } mutex_unlock(&dev->lock); @@ -1101,7 +1138,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv, { struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; - u8 i; int rc; rc = check_dev(dev); @@ -1110,28 +1146,31 @@ static int vidioc_s_ctrl(struct file *file, void *priv, mutex_lock(&dev->lock); - if (dev->board.has_msp34xx) - v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl); - else { + /* Set an AC97 control */ + if (dev->audio_mode.ac97 != EM28XX_NO_AC97) + rc = ac97_set_ctrl(dev, ctrl); + else rc = 1; - for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { - if (ctrl->id == em28xx_qctrl[i].id) { - if (ctrl->value < em28xx_qctrl[i].minimum || - ctrl->value > em28xx_qctrl[i].maximum) { - rc = -ERANGE; - break; - } - - rc = em28xx_set_ctrl(dev, ctrl); - break; - } - } - } - /* Control not found - try to send it to the attached devices */ + /* It isn't an AC97 control. Sends it to the v4l2 dev interface */ if (rc == 1) { v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl); - rc = 0; + + /* + * In the case of non-AC97 volume controls, we still need + * to do some setups at em28xx, in order to mute/unmute + * and to adjust audio volume. However, the value ranges + * should be checked by the corresponding V4L subdriver. + */ + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + dev->mute = ctrl->value; + rc = em28xx_audio_analog_set(dev); + break; + case V4L2_CID_AUDIO_VOLUME: + dev->volume = ctrl->value; + rc = em28xx_audio_analog_set(dev); + } } mutex_unlock(&dev->lock); @@ -1275,8 +1314,9 @@ static int vidioc_g_register(struct file *file, void *priv, v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); return 0; case V4L2_CHIP_MATCH_I2C_ADDR: - /* Not supported yet */ - return -EINVAL; + /* TODO: is this correct? */ + v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); + return 0; default: if (!v4l2_chip_match_host(®->match)) return -EINVAL; @@ -1327,8 +1367,9 @@ static int vidioc_s_register(struct file *file, void *priv, v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); return 0; case V4L2_CHIP_MATCH_I2C_ADDR: - /* Not supported yet */ - return -EINVAL; + /* TODO: is this correct? */ + v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); + return 0; default: if (!v4l2_chip_match_host(®->match)) return -EINVAL; @@ -1431,9 +1472,11 @@ static int vidioc_querycap(struct file *file, void *priv, cap->capabilities = V4L2_CAP_SLICED_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; + if (dev->audio_mode.has_audio) + cap->capabilities |= V4L2_CAP_AUDIO; + if (dev->tuner_type != TUNER_ABSENT) cap->capabilities |= V4L2_CAP_TUNER; @@ -1654,9 +1697,9 @@ static int radio_queryctrl(struct file *file, void *priv, qc->id >= V4L2_CID_LASTP1) return -EINVAL; - for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { - if (qc->id && qc->id == em28xx_qctrl[i].id) { - memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); + for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) { + if (qc->id && qc->id == ac97_qctrl[i].id) { + memcpy(qc, &(ac97_qctrl[i]), sizeof(*qc)); return 0; } } |