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path: root/drivers/media/video/pwc/pwc-ctrl.c
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Diffstat (limited to 'drivers/media/video/pwc/pwc-ctrl.c')
-rw-r--r--drivers/media/video/pwc/pwc-ctrl.c239
1 files changed, 102 insertions, 137 deletions
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
index 905d41d90c6..1f506fde97d 100644
--- a/drivers/media/video/pwc/pwc-ctrl.c
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -104,47 +104,16 @@ static struct Nala_table_entry Nala_table[PSZ_MAX][PWC_FPS_MAX_NALA] =
/****************************************************************************/
-static int _send_control_msg(struct pwc_device *pdev,
- u8 request, u16 value, int index, void *buf, int buflen)
-{
- int rc;
- void *kbuf = NULL;
-
- if (buflen) {
- kbuf = kmemdup(buf, buflen, GFP_KERNEL); /* not allowed on stack */
- if (kbuf == NULL)
- return -ENOMEM;
- }
-
- rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0),
- request,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value,
- index,
- kbuf, buflen, USB_CTRL_SET_TIMEOUT);
-
- kfree(kbuf);
- return rc;
-}
-
static int recv_control_msg(struct pwc_device *pdev,
- u8 request, u16 value, void *buf, int buflen)
+ u8 request, u16 value, int recv_count)
{
int rc;
- void *kbuf = kmalloc(buflen, GFP_KERNEL); /* not allowed on stack */
-
- if (kbuf == NULL)
- return -ENOMEM;
rc = usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0),
request,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value,
- pdev->vcinterface,
- kbuf, buflen, USB_CTRL_GET_TIMEOUT);
- memcpy(buf, kbuf, buflen);
- kfree(kbuf);
-
+ value, pdev->vcinterface,
+ pdev->ctrl_buf, recv_count, USB_CTRL_GET_TIMEOUT);
if (rc < 0)
PWC_ERROR("recv_control_msg error %d req %02x val %04x\n",
rc, request, value);
@@ -152,27 +121,39 @@ static int recv_control_msg(struct pwc_device *pdev,
}
static inline int send_video_command(struct pwc_device *pdev,
- int index, void *buf, int buflen)
+ int index, const unsigned char *buf, int buflen)
{
- return _send_control_msg(pdev,
- SET_EP_STREAM_CTL,
- VIDEO_OUTPUT_CONTROL_FORMATTER,
- index,
- buf, buflen);
+ int rc;
+
+ memcpy(pdev->ctrl_buf, buf, buflen);
+
+ rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0),
+ SET_EP_STREAM_CTL,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ VIDEO_OUTPUT_CONTROL_FORMATTER, index,
+ pdev->ctrl_buf, buflen, USB_CTRL_SET_TIMEOUT);
+ if (rc >= 0)
+ memcpy(pdev->cmd_buf, buf, buflen);
+ else
+ PWC_ERROR("send_video_command error %d\n", rc);
+
+ return rc;
}
int send_control_msg(struct pwc_device *pdev,
u8 request, u16 value, void *buf, int buflen)
{
- return _send_control_msg(pdev,
- request, value, pdev->vcinterface, buf, buflen);
+ return usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0),
+ request,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, pdev->vcinterface,
+ buf, buflen, USB_CTRL_SET_TIMEOUT);
}
-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, int send_to_cam)
{
- unsigned char buf[3];
- int ret, fps;
+ int fps, ret = 0;
struct Nala_table_entry *pEntry;
int frames2frames[31] =
{ /* closest match of framerate */
@@ -194,30 +175,29 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames,
7 /* 30 */
};
- if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
+ if (size < 0 || size > PSZ_CIF)
return -EINVAL;
+ if (frames < 4)
+ frames = 4;
+ else if (frames > 25)
+ frames = 25;
frames = frames2frames[frames];
fps = frames2table[frames];
pEntry = &Nala_table[size][fps];
if (pEntry->alternate == 0)
return -EINVAL;
- memcpy(buf, pEntry->mode, 3);
- ret = send_video_command(pdev, pdev->vendpoint, buf, 3);
- if (ret < 0) {
- PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret);
+ if (send_to_cam)
+ ret = send_video_command(pdev, pdev->vendpoint,
+ pEntry->mode, 3);
+ if (ret < 0)
return ret;
- }
- if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
- ret = pwc_dec1_init(pdev, pdev->type, pdev->release, buf);
- if (ret < 0)
- return ret;
- }
- pdev->cmd_len = 3;
- memcpy(pdev->cmd_buf, buf, 3);
+ if (pEntry->compressed && pixfmt == V4L2_PIX_FMT_YUV420)
+ pwc_dec1_init(pdev, pEntry->mode);
/* Set various parameters */
+ pdev->pixfmt = pixfmt;
pdev->vframes = frames;
pdev->valternate = pEntry->alternate;
pdev->width = pwc_image_sizes[size][0];
@@ -243,18 +223,20 @@ 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, int send_to_cam)
{
- unsigned char buf[13];
const struct Timon_table_entry *pChoose;
- int ret, fps;
+ int fps, ret = 0;
- if (size >= PSZ_MAX || frames < 5 || frames > 30 ||
- *compression < 0 || *compression > 3)
- return -EINVAL;
- if (size == PSZ_VGA && frames > 15)
+ if (size >= PSZ_MAX || *compression < 0 || *compression > 3)
return -EINVAL;
+ if (frames < 5)
+ frames = 5;
+ else if (size == PSZ_VGA && frames > 15)
+ frames = 15;
+ else if (frames > 30)
+ frames = 30;
fps = (frames / 5) - 1;
/* Find a supported framerate with progressively higher compression */
@@ -268,22 +250,18 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames,
if (pChoose == NULL || pChoose->alternate == 0)
return -ENOENT; /* Not supported. */
- memcpy(buf, pChoose->mode, 13);
- ret = send_video_command(pdev, pdev->vendpoint, buf, 13);
+ if (send_to_cam)
+ ret = send_video_command(pdev, pdev->vendpoint,
+ pChoose->mode, 13);
if (ret < 0)
return ret;
- if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
- ret = pwc_dec23_init(pdev, pdev->type, buf);
- if (ret < 0)
- return ret;
- }
-
- pdev->cmd_len = 13;
- memcpy(pdev->cmd_buf, buf, 13);
+ if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420)
+ pwc_dec23_init(pdev, pChoose->mode);
/* Set various parameters */
- pdev->vframes = frames;
+ pdev->pixfmt = pixfmt;
+ pdev->vframes = (fps + 1) * 5;
pdev->valternate = pChoose->alternate;
pdev->width = pwc_image_sizes[size][0];
pdev->height = pwc_image_sizes[size][1];
@@ -296,18 +274,20 @@ 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, int send_to_cam)
{
const struct Kiara_table_entry *pChoose = NULL;
- int fps, ret;
- unsigned char buf[12];
+ int fps, ret = 0;
- if (size >= PSZ_MAX || frames < 5 || frames > 30 ||
- *compression < 0 || *compression > 3)
- return -EINVAL;
- if (size == PSZ_VGA && frames > 15)
+ if (size >= PSZ_MAX || *compression < 0 || *compression > 3)
return -EINVAL;
+ if (frames < 5)
+ frames = 5;
+ else if (size == PSZ_VGA && frames > 15)
+ frames = 15;
+ else if (frames > 30)
+ frames = 30;
fps = (frames / 5) - 1;
/* Find a supported framerate with progressively higher compression */
@@ -320,26 +300,18 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames,
if (pChoose == NULL || pChoose->alternate == 0)
return -ENOENT; /* Not supported. */
- PWC_TRACE("Using alternate setting %d.\n", pChoose->alternate);
-
- /* usb_control_msg won't take staticly allocated arrays as argument?? */
- memcpy(buf, pChoose->mode, 12);
-
/* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
- ret = send_video_command(pdev, 4 /* pdev->vendpoint */, buf, 12);
+ if (send_to_cam)
+ ret = send_video_command(pdev, 4, pChoose->mode, 12);
if (ret < 0)
return ret;
- if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
- ret = pwc_dec23_init(pdev, pdev->type, buf);
- if (ret < 0)
- return ret;
- }
+ if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420)
+ pwc_dec23_init(pdev, pChoose->mode);
- pdev->cmd_len = 12;
- memcpy(pdev->cmd_buf, buf, 12);
/* All set and go */
- pdev->vframes = frames;
+ pdev->pixfmt = pixfmt;
+ pdev->vframes = (fps + 1) * 5;
pdev->valternate = pChoose->alternate;
pdev->width = pwc_image_sizes[size][0];
pdev->height = pwc_image_sizes[size][1];
@@ -354,22 +326,24 @@ 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 send_to_cam)
{
int ret, size;
- PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n", width, height, frames, pdev->pixfmt);
+ PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n",
+ 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, send_to_cam);
} 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, send_to_cam);
} else {
- ret = set_video_mode_Timon(pdev, size, frames, compression);
+ ret = set_video_mode_Timon(pdev, size, pixfmt, frames,
+ compression, send_to_cam);
}
if (ret < 0) {
PWC_ERROR("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
@@ -436,13 +410,12 @@ unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned i
int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data)
{
int ret;
- u8 buf;
- ret = recv_control_msg(pdev, request, value, &buf, sizeof(buf));
+ ret = recv_control_msg(pdev, request, value, 1);
if (ret < 0)
return ret;
- *data = buf;
+ *data = pdev->ctrl_buf[0];
return 0;
}
@@ -450,7 +423,8 @@ int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data)
{
int ret;
- ret = send_control_msg(pdev, request, value, &data, sizeof(data));
+ pdev->ctrl_buf[0] = data;
+ ret = send_control_msg(pdev, request, value, pdev->ctrl_buf, 1);
if (ret < 0)
return ret;
@@ -460,37 +434,34 @@ int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data)
int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data)
{
int ret;
- s8 buf;
- ret = recv_control_msg(pdev, request, value, &buf, sizeof(buf));
+ ret = recv_control_msg(pdev, request, value, 1);
if (ret < 0)
return ret;
- *data = buf;
+ *data = ((s8 *)pdev->ctrl_buf)[0];
return 0;
}
int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data)
{
int ret;
- u8 buf[2];
- ret = recv_control_msg(pdev, request, value, buf, sizeof(buf));
+ ret = recv_control_msg(pdev, request, value, 2);
if (ret < 0)
return ret;
- *data = (buf[1] << 8) | buf[0];
+ *data = (pdev->ctrl_buf[1] << 8) | pdev->ctrl_buf[0];
return 0;
}
int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data)
{
int ret;
- u8 buf[2];
- buf[0] = data & 0xff;
- buf[1] = data >> 8;
- ret = send_control_msg(pdev, request, value, buf, sizeof(buf));
+ pdev->ctrl_buf[0] = data & 0xff;
+ pdev->ctrl_buf[1] = data >> 8;
+ ret = send_control_msg(pdev, request, value, pdev->ctrl_buf, 2);
if (ret < 0)
return ret;
@@ -511,7 +482,6 @@ int pwc_button_ctrl(struct pwc_device *pdev, u16 value)
/* POWER */
void pwc_camera_power(struct pwc_device *pdev, int power)
{
- char buf;
int r;
if (!pdev->power_save)
@@ -521,13 +491,11 @@ void pwc_camera_power(struct pwc_device *pdev, int power)
return; /* Not supported by Nala or Timon < release 6 */
if (power)
- buf = 0x00; /* active */
+ pdev->ctrl_buf[0] = 0x00; /* active */
else
- buf = 0xFF; /* power save */
- r = send_control_msg(pdev,
- SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER,
- &buf, sizeof(buf));
-
+ pdev->ctrl_buf[0] = 0xFF; /* power save */
+ r = send_control_msg(pdev, SET_STATUS_CTL,
+ SET_POWER_SAVE_MODE_FORMATTER, pdev->ctrl_buf, 1);
if (r < 0)
PWC_ERROR("Failed to power %s camera (%d)\n",
power ? "on" : "off", r);
@@ -535,7 +503,6 @@ void pwc_camera_power(struct pwc_device *pdev, int power)
int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
{
- unsigned char buf[2];
int r;
if (pdev->type < 730)
@@ -551,11 +518,11 @@ int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
if (off_value > 0xff)
off_value = 0xff;
- buf[0] = on_value;
- buf[1] = off_value;
+ pdev->ctrl_buf[0] = on_value;
+ pdev->ctrl_buf[1] = off_value;
r = send_control_msg(pdev,
- SET_STATUS_CTL, LED_FORMATTER, &buf, sizeof(buf));
+ SET_STATUS_CTL, LED_FORMATTER, pdev->ctrl_buf, 2);
if (r < 0)
PWC_ERROR("Failed to set LED on/off time (%d)\n", r);
@@ -565,7 +532,6 @@ int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
#ifdef CONFIG_USB_PWC_DEBUG
int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
{
- unsigned char buf;
int ret = -1, request;
if (pdev->type < 675)
@@ -575,14 +541,13 @@ int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
else
request = SENSOR_TYPE_FORMATTER2;
- ret = recv_control_msg(pdev,
- GET_STATUS_CTL, request, &buf, sizeof(buf));
+ ret = recv_control_msg(pdev, GET_STATUS_CTL, request, 1);
if (ret < 0)
return ret;
if (pdev->type < 675)
- *sensor = buf | 0x100;
+ *sensor = pdev->ctrl_buf[0] | 0x100;
else
- *sensor = buf;
+ *sensor = pdev->ctrl_buf[0];
return 0;
}
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-20 21:34:03 +0000