diff options
Diffstat (limited to 'drivers/media/video/pwc/pwc-ctrl.c')
| -rw-r--r-- | drivers/media/video/pwc/pwc-ctrl.c | 154 |
1 files changed, 55 insertions, 99 deletions
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c index 9c1fb3f07de..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); @@ -152,26 +121,38 @@ 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 pixfmt, int frames, int *compression, int send_to_cam) { - unsigned char buf[3]; int fps, ret = 0; struct Nala_table_entry *pEntry; int frames2frames[31] = @@ -206,18 +187,14 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int pixfmt, if (pEntry->alternate == 0) return -EINVAL; - memcpy(buf, pEntry->mode, 3); if (send_to_cam) - ret = send_video_command(pdev, pdev->vendpoint, buf, 3); - if (ret < 0) { - PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret); + ret = send_video_command(pdev, pdev->vendpoint, + pEntry->mode, 3); + if (ret < 0) return ret; - } - if (pEntry->compressed && pixfmt == V4L2_PIX_FMT_YUV420) - pwc_dec1_init(pdev, buf); - 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; @@ -249,7 +226,6 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int pixfmt, 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 fps, ret = 0; @@ -274,17 +250,14 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int pixfmt, if (pChoose == NULL || pChoose->alternate == 0) return -ENOENT; /* Not supported. */ - memcpy(buf, pChoose->mode, 13); if (send_to_cam) - ret = send_video_command(pdev, pdev->vendpoint, buf, 13); + ret = send_video_command(pdev, pdev->vendpoint, + pChoose->mode, 13); if (ret < 0) return ret; if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420) - pwc_dec23_init(pdev, buf); - - pdev->cmd_len = 13; - memcpy(pdev->cmd_buf, buf, 13); + pwc_dec23_init(pdev, pChoose->mode); /* Set various parameters */ pdev->pixfmt = pixfmt; @@ -306,7 +279,6 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int pixfmt, { const struct Kiara_table_entry *pChoose = NULL; int fps, ret = 0; - unsigned char buf[12]; if (size >= PSZ_MAX || *compression < 0 || *compression > 3) return -EINVAL; @@ -328,22 +300,15 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int pixfmt, 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 */ if (send_to_cam) - ret = send_video_command(pdev, 4, buf, 12); + ret = send_video_command(pdev, 4, pChoose->mode, 12); if (ret < 0) return ret; if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420) - pwc_dec23_init(pdev, buf); + pwc_dec23_init(pdev, pChoose->mode); - pdev->cmd_len = 12; - memcpy(pdev->cmd_buf, buf, 12); /* All set and go */ pdev->pixfmt = pixfmt; pdev->vframes = (fps + 1) * 5; @@ -445,13 +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; } @@ -459,7 +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; @@ -469,37 +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; @@ -520,7 +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) @@ -530,13 +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); @@ -544,7 +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) @@ -560,11 +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); @@ -574,7 +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) @@ -584,14 +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 |