diff options
Diffstat (limited to 'drivers/usb/media/pwc/pwc-ctrl.c')
| -rw-r--r-- | drivers/usb/media/pwc/pwc-ctrl.c | 1630 |
1 files changed, 1630 insertions, 0 deletions
diff --git a/drivers/usb/media/pwc/pwc-ctrl.c b/drivers/usb/media/pwc/pwc-ctrl.c new file mode 100644 index 00000000000..26aa914bc54 --- /dev/null +++ b/drivers/usb/media/pwc/pwc-ctrl.c @@ -0,0 +1,1630 @@ +/* Driver for Philips webcam + Functions that send various control messages to the webcam, including + video modes. + (C) 1999-2003 Nemosoft Unv. + (C) 2004 Luc Saillard (luc@saillard.org) + + NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx + driver and thus may have bugs that are not present in the original version. + Please send bug reports and support requests to <luc@saillard.org>. + + NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx + driver and thus may have bugs that are not present in the original version. + Please send bug reports and support requests to <luc@saillard.org>. + The decompression routines have been implemented by reverse-engineering the + Nemosoft binary pwcx module. Caveat emptor. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +/* + Changes + 2001/08/03 Alvarado Added methods for changing white balance and + red/green gains + */ + +/* Control functions for the cam; brightness, contrast, video mode, etc. */ + +#ifdef __KERNEL__ +#include <asm/uaccess.h> +#endif +#include <asm/errno.h> +#include <linux/version.h> + +#include "pwc.h" +#include "pwc-ioctl.h" +#include "pwc-uncompress.h" +#include "pwc-kiara.h" +#include "pwc-timon.h" +#include "pwc-dec1.h" +#include "pwc-dec23.h" + +/* Request types: video */ +#define SET_LUM_CTL 0x01 +#define GET_LUM_CTL 0x02 +#define SET_CHROM_CTL 0x03 +#define GET_CHROM_CTL 0x04 +#define SET_STATUS_CTL 0x05 +#define GET_STATUS_CTL 0x06 +#define SET_EP_STREAM_CTL 0x07 +#define GET_EP_STREAM_CTL 0x08 +#define SET_MPT_CTL 0x0D +#define GET_MPT_CTL 0x0E + +/* Selectors for the Luminance controls [GS]ET_LUM_CTL */ +#define AGC_MODE_FORMATTER 0x2000 +#define PRESET_AGC_FORMATTER 0x2100 +#define SHUTTER_MODE_FORMATTER 0x2200 +#define PRESET_SHUTTER_FORMATTER 0x2300 +#define PRESET_CONTOUR_FORMATTER 0x2400 +#define AUTO_CONTOUR_FORMATTER 0x2500 +#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600 +#define CONTRAST_FORMATTER 0x2700 +#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800 +#define FLICKERLESS_MODE_FORMATTER 0x2900 +#define AE_CONTROL_SPEED 0x2A00 +#define BRIGHTNESS_FORMATTER 0x2B00 +#define GAMMA_FORMATTER 0x2C00 + +/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */ +#define WB_MODE_FORMATTER 0x1000 +#define AWB_CONTROL_SPEED_FORMATTER 0x1100 +#define AWB_CONTROL_DELAY_FORMATTER 0x1200 +#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300 +#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400 +#define COLOUR_MODE_FORMATTER 0x1500 +#define SATURATION_MODE_FORMATTER1 0x1600 +#define SATURATION_MODE_FORMATTER2 0x1700 + +/* Selectors for the Status controls [GS]ET_STATUS_CTL */ +#define SAVE_USER_DEFAULTS_FORMATTER 0x0200 +#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300 +#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400 +#define READ_AGC_FORMATTER 0x0500 +#define READ_SHUTTER_FORMATTER 0x0600 +#define READ_RED_GAIN_FORMATTER 0x0700 +#define READ_BLUE_GAIN_FORMATTER 0x0800 +#define SENSOR_TYPE_FORMATTER1 0x0C00 +#define READ_RAW_Y_MEAN_FORMATTER 0x3100 +#define SET_POWER_SAVE_MODE_FORMATTER 0x3200 +#define MIRROR_IMAGE_FORMATTER 0x3300 +#define LED_FORMATTER 0x3400 +#define SENSOR_TYPE_FORMATTER2 0x3700 + +/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */ +#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100 + +/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */ +#define PT_RELATIVE_CONTROL_FORMATTER 0x01 +#define PT_RESET_CONTROL_FORMATTER 0x02 +#define PT_STATUS_FORMATTER 0x03 + +static char *size2name[PSZ_MAX] = +{ + "subQCIF", + "QSIF", + "QCIF", + "SIF", + "CIF", + "VGA", +}; + +/********/ + +/* Entries for the Nala (645/646) camera; the Nala doesn't have compression + preferences, so you either get compressed or non-compressed streams. + + An alternate value of 0 means this mode is not available at all. + */ + +struct Nala_table_entry { + char alternate; /* USB alternate setting */ + int compressed; /* Compressed yes/no */ + + unsigned char mode[3]; /* precomputed mode table */ +}; + +static struct Nala_table_entry Nala_table[PSZ_MAX][8] = +{ +#include "pwc-nala.h" +}; + + +/****************************************************************************/ + + +#define SendControlMsg(request, value, buflen) \ + 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, 500) + +#define RecvControlMsg(request, value, buflen) \ + usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \ + request, \ + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \ + value, \ + pdev->vcinterface, \ + &buf, buflen, 500) + + +#if PWC_DEBUG +void pwc_hexdump(void *p, int len) +{ + int i; + unsigned char *s; + char buf[100], *d; + + s = (unsigned char *)p; + d = buf; + *d = '\0'; + Debug("Doing hexdump @ %p, %d bytes.\n", p, len); + for (i = 0; i < len; i++) { + d += sprintf(d, "%02X ", *s++); + if ((i & 0xF) == 0xF) { + Debug("%s\n", buf); + d = buf; + *d = '\0'; + } + } + if ((i & 0xF) != 0) + Debug("%s\n", buf); +} +#endif + +static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen) +{ + return usb_control_msg(udev, + usb_sndctrlpipe(udev, 0), + SET_EP_STREAM_CTL, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + VIDEO_OUTPUT_CONTROL_FORMATTER, + index, + buf, buflen, 1000); +} + + + +static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames) +{ + unsigned char buf[3]; + int ret, fps; + struct Nala_table_entry *pEntry; + int frames2frames[31] = + { /* closest match of framerate */ + 0, 0, 0, 0, 4, /* 0-4 */ + 5, 5, 7, 7, 10, /* 5-9 */ + 10, 10, 12, 12, 15, /* 10-14 */ + 15, 15, 15, 20, 20, /* 15-19 */ + 20, 20, 20, 24, 24, /* 20-24 */ + 24, 24, 24, 24, 24, /* 25-29 */ + 24 /* 30 */ + }; + int frames2table[31] = + { 0, 0, 0, 0, 0, /* 0-4 */ + 1, 1, 1, 2, 2, /* 5-9 */ + 3, 3, 4, 4, 4, /* 10-14 */ + 5, 5, 5, 5, 5, /* 15-19 */ + 6, 6, 6, 6, 7, /* 20-24 */ + 7, 7, 7, 7, 7, /* 25-29 */ + 7 /* 30 */ + }; + + if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25) + return -EINVAL; + frames = frames2frames[frames]; + fps = frames2table[frames]; + pEntry = &Nala_table[size][fps]; + if (pEntry->alternate == 0) + return -EINVAL; + + if (pEntry->compressed) + return -ENOENT; /* Not supported. */ + + memcpy(buf, pEntry->mode, 3); + ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3); + if (ret < 0) { + Debug("Failed to send video command... %d\n", ret); + return ret; + } + if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW) + { + switch(pdev->type) { + case 645: + case 646: + pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); + break; + + case 675: + case 680: + case 690: + case 720: + case 730: + case 740: + case 750: + pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); + break; + } + } + + pdev->cmd_len = 3; + memcpy(pdev->cmd_buf, buf, 3); + + /* Set various parameters */ + pdev->vframes = frames; + pdev->vsize = size; + pdev->valternate = pEntry->alternate; + pdev->image = pwc_image_sizes[size]; + pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2; + if (pEntry->compressed) { + if (pdev->release < 5) { /* 4 fold compression */ + pdev->vbandlength = 528; + pdev->frame_size /= 4; + } + else { + pdev->vbandlength = 704; + pdev->frame_size /= 3; + } + } + else + pdev->vbandlength = 0; + return 0; +} + + +static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot) +{ + unsigned char buf[13]; + const struct Timon_table_entry *pChoose; + int ret, fps; + + if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3) + return -EINVAL; + if (size == PSZ_VGA && frames > 15) + return -EINVAL; + fps = (frames / 5) - 1; + + /* Find a supported framerate with progressively higher compression ratios + if the preferred ratio is not available. + */ + pChoose = NULL; + while (compression <= 3) { + pChoose = &Timon_table[size][fps][compression]; + if (pChoose->alternate != 0) + break; + compression++; + } + if (pChoose == NULL || pChoose->alternate == 0) + return -ENOENT; /* Not supported. */ + + memcpy(buf, pChoose->mode, 13); + if (snapshot) + buf[0] |= 0x80; + ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13); + if (ret < 0) + return ret; + + if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW) + pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); + + pdev->cmd_len = 13; + memcpy(pdev->cmd_buf, buf, 13); + + /* Set various parameters */ + pdev->vframes = frames; + pdev->vsize = size; + pdev->vsnapshot = snapshot; + pdev->valternate = pChoose->alternate; + pdev->image = pwc_image_sizes[size]; + pdev->vbandlength = pChoose->bandlength; + if (pChoose->bandlength > 0) + pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4; + else + pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8; + return 0; +} + + +static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot) +{ + const struct Kiara_table_entry *pChoose = NULL; + int fps, ret; + unsigned char buf[12]; + struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}}; + + if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3) + return -EINVAL; + if (size == PSZ_VGA && frames > 15) + return -EINVAL; + fps = (frames / 5) - 1; + + /* special case: VGA @ 5 fps and snapshot is raw bayer mode */ + if (size == PSZ_VGA && frames == 5 && snapshot) + { + /* Only available in case the raw palette is selected or + we have the decompressor available. This mode is + only available in compressed form + */ + if (pdev->vpalette == VIDEO_PALETTE_RAW) + { + Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette); + pChoose = &RawEntry; + } + else + { + Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n"); + } + } + else + { + /* Find a supported framerate with progressively higher compression ratios + if the preferred ratio is not available. + Skip this step when using RAW modes. + */ + while (compression <= 3) { + pChoose = &Kiara_table[size][fps][compression]; + if (pChoose->alternate != 0) + break; + compression++; + } + } + if (pChoose == NULL || pChoose->alternate == 0) + return -ENOENT; /* Not supported. */ + + Debug("Using alternate setting %d.\n", pChoose->alternate); + + /* usb_control_msg won't take staticly allocated arrays as argument?? */ + memcpy(buf, pChoose->mode, 12); + if (snapshot) + buf[0] |= 0x80; + + /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */ + ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12); + if (ret < 0) + return ret; + + if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW) + pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); + + pdev->cmd_len = 12; + memcpy(pdev->cmd_buf, buf, 12); + /* All set and go */ + pdev->vframes = frames; + pdev->vsize = size; + pdev->vsnapshot = snapshot; + pdev->valternate = pChoose->alternate; + pdev->image = pwc_image_sizes[size]; + pdev->vbandlength = pChoose->bandlength; + if (pdev->vbandlength > 0) + pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4; + else + pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8; + return 0; +} + + + +/** + @pdev: device structure + @width: viewport width + @height: viewport height + @frame: framerate, in fps + @compression: preferred compression ratio + @snapshot: snapshot mode or streaming + */ +int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot) +{ + int ret, size; + + Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette); + size = pwc_decode_size(pdev, width, height); + if (size < 0) { + Debug("Could not find suitable size.\n"); + return -ERANGE; + } + Debug("decode_size = %d.\n", size); + + ret = -EINVAL; + switch(pdev->type) { + case 645: + case 646: + ret = set_video_mode_Nala(pdev, size, frames); + break; + + case 675: + case 680: + case 690: + ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot); + break; + + case 720: + case 730: + case 740: + case 750: + ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot); + break; + } + if (ret < 0) { + if (ret == -ENOENT) + Info("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name[size], frames); + else { + Err("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret); + } + return ret; + } + pdev->view.x = width; + pdev->view.y = height; + pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size; + pwc_set_image_buffer_size(pdev); + Trace(TRACE_SIZE, "Set viewport to %dx%d, image size is %dx%d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y); + return 0; +} + + +void pwc_set_image_buffer_size(struct pwc_device *pdev) +{ + int i, factor = 0, filler = 0; + + /* for PALETTE_YUV420P */ + switch(pdev->vpalette) + { + case VIDEO_PALETTE_YUV420P: + factor = 6; + filler = 128; + break; + case VIDEO_PALETTE_RAW: + factor = 6; /* can be uncompressed YUV420P */ + filler = 0; + break; + } + + /* Set sizes in bytes */ + pdev->image.size = pdev->image.x * pdev->image.y * factor / 4; + pdev->view.size = pdev->view.x * pdev->view.y * factor / 4; + + /* Align offset, or you'll get some very weird results in + YUV420 mode... x must be multiple of 4 (to get the Y's in + place), and y even (or you'll mixup U & V). This is less of a + problem for YUV420P. + */ + pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC; + pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE; + + /* Fill buffers with gray or black */ + for (i = 0; i < MAX_IMAGES; i++) { + if (pdev->image_ptr[i] != NULL) + memset(pdev->image_ptr[i], filler, pdev->view.size); + } +} + + + +/* BRIGHTNESS */ + +int pwc_get_brightness(struct pwc_device *pdev) +{ + char buf; + int ret; + + ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1); + if (ret < 0) + return ret; + return buf << 9; +} + +int pwc_set_brightness(struct pwc_device *pdev, int value) +{ + char buf; + + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + buf = (value >> 9) & 0x7f; + return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1); +} + +/* CONTRAST */ + +int pwc_get_contrast(struct pwc_device *pdev) +{ + char buf; + int ret; + + ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1); + if (ret < 0) + return ret; + return buf << 10; +} + +int pwc_set_contrast(struct pwc_device *pdev, int value) +{ + char buf; + + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + buf = (value >> 10) & 0x3f; + return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1); +} + +/* GAMMA */ + +int pwc_get_gamma(struct pwc_device *pdev) +{ + char buf; + int ret; + + ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1); + if (ret < 0) + return ret; + return buf << 11; +} + +int pwc_set_gamma(struct pwc_device *pdev, int value) +{ + char buf; + + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + buf = (value >> 11) & 0x1f; + return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1); +} + + +/* SATURATION */ + +int pwc_get_saturation(struct pwc_device *pdev) +{ + char buf; + int ret; + + if (pdev->type < 675) + return -1; + ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1); + if (ret < 0) + return ret; + return 32768 + buf * 327; +} + +int pwc_set_saturation(struct pwc_device *pdev, int value) +{ + char buf; + + if (pdev->type < 675) + return -EINVAL; + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + /* saturation ranges from -100 to +100 */ + buf = (value - 32768) / 327; + return SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1); +} + +/* AGC */ + +static inline int pwc_set_agc(struct pwc_device *pdev, int mode, int value) +{ + char buf; + int ret; + + if (mode) + buf = 0x0; /* auto */ + else + buf = 0xff; /* fixed */ + + ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1); + + if (!mode && ret >= 0) { + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + buf = (value >> 10) & 0x3F; + ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1); + } + if (ret < 0) + return ret; + return 0; +} + +static inline int pwc_get_agc(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1); + if (ret < 0) + return ret; + + if (buf != 0) { /* fixed */ + ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1); + if (ret < 0) + return ret; + if (buf > 0x3F) + buf = 0x3F; + *value = (buf << 10); + } + else { /* auto */ + ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1); + if (ret < 0) + return ret; + /* Gah... this value ranges from 0x00 ... 0x9F */ + if (buf > 0x9F) + buf = 0x9F; + *value = -(48 + buf * 409); + } + + return 0; +} + +static inline int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value) +{ + char buf[2]; + int speed, ret; + + + if (mode) + buf[0] = 0x0; /* auto */ + else + buf[0] = 0xff; /* fixed */ + + ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1); + + if (!mode && ret >= 0) { + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + switch(pdev->type) { + case 675: + case 680: + case 690: + /* speed ranges from 0x0 to 0x290 (656) */ + speed = (value / 100); + buf[1] = speed >> 8; + buf[0] = speed & 0xff; + break; + case 720: + case 730: + case 740: + case 750: + /* speed seems to range from 0x0 to 0xff */ + buf[1] = 0; + buf[0] = value >> 8; + break; + } + + ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2); + } + return ret; +} + + +/* POWER */ + +int pwc_camera_power(struct pwc_device *pdev, int power) +{ + char buf; + + if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6)) + return 0; /* Not supported by Nala or Timon < release 6 */ + + if (power) + buf = 0x00; /* active */ + else + buf = 0xFF; /* power save */ + return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1); +} + + + +/* private calls */ + +static inline int pwc_restore_user(struct pwc_device *pdev) +{ + char buf; /* dummy */ + return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0); +} + +static inline int pwc_save_user(struct pwc_device *pdev) +{ + char buf; /* dummy */ + return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0); +} + +static inline int pwc_restore_factory(struct pwc_device *pdev) +{ + char buf; /* dummy */ + return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0); +} + + /* ************************************************* */ + /* Patch by Alvarado: (not in the original version */ + + /* + * the camera recognizes modes from 0 to 4: + * + * 00: indoor (incandescant lighting) + * 01: outdoor (sunlight) + * 02: fluorescent lighting + * 03: manual + * 04: auto + */ +static inline int pwc_set_awb(struct pwc_device *pdev, int mode) +{ + char buf; + int ret; + + if (mode < 0) + mode = 0; + + if (mode > 4) + mode = 4; + + buf = mode & 0x07; /* just the lowest three bits */ + + ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1); + + if (ret < 0) + return ret; + return 0; +} + +static inline int pwc_get_awb(struct pwc_device *pdev) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1); + + if (ret < 0) + return ret; + return buf; +} + +static inline int pwc_set_red_gain(struct pwc_device *pdev, int value) +{ + unsigned char buf; + + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + /* only the msb is considered */ + buf = value >> 8; + return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1); +} + +static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1); + if (ret < 0) + return ret; + *value = buf << 8; + return 0; +} + + +static inline int pwc_set_blue_gain(struct pwc_device *pdev, int value) +{ + unsigned char buf; + + if (value < 0) + value = 0; + if (value > 0xffff) + value = 0xffff; + /* only the msb is considered */ + buf = value >> 8; + return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1); +} + +static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1); + if (ret < 0) + return ret; + *value = buf << 8; + return 0; +} + + +/* The following two functions are different, since they only read the + internal red/blue gains, which may be different from the manual + gains set or read above. + */ +static inline int pwc_read_red_gain(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1); + if (ret < 0) + return ret; + *value = buf << 8; + return 0; +} + +static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1); + if (ret < 0) + return ret; + *value = buf << 8; + return 0; +} + + +static inline int pwc_set_wb_speed(struct pwc_device *pdev, int speed) +{ + unsigned char buf; + + /* useful range is 0x01..0x20 */ + buf = speed / 0x7f0; + return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1); +} + +static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1); + if (ret < 0) + return ret; + *value = buf * 0x7f0; + return 0; +} + + +static inline int pwc_set_wb_delay(struct pwc_device *pdev, int delay) +{ + unsigned char buf; + + /* useful range is 0x01..0x3F */ + buf = (delay >> 10); + return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1); +} + +static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1); + if (ret < 0) + return ret; + *value = buf << 10; + return 0; +} + + +int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value) +{ + unsigned char buf[2]; + + if (pdev->type < 730) + return 0; + on_value /= 100; + off_value /= 100; + if (on_value < 0) + on_value = 0; + if (on_value > 0xff) + on_value = 0xff; + if (off_value < 0) + off_value = 0; + if (off_value > 0xff) + off_value = 0xff; + + buf[0] = on_value; + buf[1] = off_value; + + return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2); +} + +int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value) +{ + unsigned char buf[2]; + int ret; + + if (pdev->type < 730) { + *on_value = -1; + *off_value = -1; + return 0; + } + + ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2); + if (ret < 0) + return ret; + *on_value = buf[0] * 100; + *off_value = buf[1] * 100; + return 0; +} + +static inline int pwc_set_contour(struct pwc_device *pdev, int contour) +{ + unsigned char buf; + int ret; + + if (contour < 0) + buf = 0xff; /* auto contour on */ + else + buf = 0x0; /* auto contour off */ + ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1); + if (ret < 0) + return ret; + + if (contour < 0) + return 0; + if (contour > 0xffff) + contour = 0xffff; + + buf = (contour >> 10); /* contour preset is [0..3f] */ + ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1); + if (ret < 0) + return ret; + return 0; +} + +static inline int pwc_get_contour(struct pwc_device *pdev, int *contour) +{ + unsigned char buf; + int ret; + + ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1); + if (ret < 0) + return ret; + + if (buf == 0) { + /* auto mode off, query current preset value */ + ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1); + if (ret < 0) + return ret; + *contour = buf << 10; + } + else + *contour = -1; + return 0; +} + + +static inline int pwc_set_backlight(struct pwc_device *pdev, int backlight) +{ + unsigned char buf; + + if (backlight) + buf = 0xff; + else + buf = 0x0; + return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1); +} + +static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight) +{ + int ret; + unsigned char buf; + + ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1); + if (ret < 0) + return ret; + *backlight = buf; + return 0; +} + + +static inline int pwc_set_flicker(struct pwc_device *pdev, int flicker) +{ + unsigned char buf; + + if (flicker) + buf = 0xff; + else + buf = 0x0; + return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1); +} + +static inline int pwc_get_flicker(struct pwc_device *pdev, int *flicker) +{ + int ret; + unsigned char buf; + + ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1); + if (ret < 0) + return ret; + *flicker = buf; + return 0; +} + + +static inline int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise) +{ + unsigned char buf; + + if (noise < 0) + noise = 0; + if (noise > 3) + noise = 3; + buf = noise; + return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1); +} + +static inline int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise) +{ + int ret; + unsigned char buf; + + ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1); + if (ret < 0) + return ret; + *noise = buf; + return 0; +} + +static int pwc_mpt_reset(struct pwc_device *pdev, int flags) +{ + unsigned char buf; + + buf = flags & 0x03; // only lower two bits are currently used + return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1); +} + +static inline int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt) +{ + unsigned char buf[4]; + + /* set new relative angle; angles are expressed in degrees * 100, + but cam as .5 degree resolution, hence devide by 200. Also + the angle must be multiplied by 64 before it's send to + the cam (??) + */ + pan = 64 * pan / 100; + tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */ + buf[0] = pan & 0xFF; + buf[1] = (pan >> 8) & 0xFF; + buf[2] = tilt & 0xFF; + buf[3] = (tilt >> 8) & 0xFF; + return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4); +} + +static inline int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status) +{ + int ret; + unsigned char buf[5]; + + ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5); + if (ret < 0) + return ret; + status->status = buf[0] & 0x7; // 3 bits are used for reporting + status->time_pan = (buf[1] << 8) + buf[2]; + status->time_tilt = (buf[3] << 8) + buf[4]; + return 0; +} + + +int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor) +{ + unsigned char buf; + int ret = -1, request; + + if (pdev->type < 675) + request = SENSOR_TYPE_FORMATTER1; + else if (pdev->type < 730) + return -1; /* The Vesta series doesn't have this call */ + else + request = SENSOR_TYPE_FORMATTER2; + + ret = RecvControlMsg(GET_STATUS_CTL, request, 1); + if (ret < 0) + return ret; + if (pdev->type < 675) + *sensor = buf | 0x100; + else + *sensor = buf; + return 0; +} + + + /* End of Add-Ons */ + /* ************************************************* */ + +/* Linux 2.5.something and 2.6 pass direct pointers to arguments of + ioctl() calls. With 2.4, you have to do tedious copy_from_user() + and copy_to_user() calls. With these macros we circumvent this, + and let me maintain only one source file. The functionality is + exactly the same otherwise. + */ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) + +/* define local variable for arg */ +#define ARG_DEF(ARG_type, ARG_name)\ + ARG_type *ARG_name = arg; +/* copy arg to local variable */ +#define ARG_IN(ARG_name) /* nothing */ +/* argument itself (referenced) */ +#define ARGR(ARG_name) (*ARG_name) +/* argument address */ +#define ARGA(ARG_name) ARG_name +/* copy local variable to arg */ +#define ARG_OUT(ARG_name) /* nothing */ + +#else + +#define ARG_DEF(ARG_type, ARG_name)\ + ARG_type ARG_name; +#define ARG_IN(ARG_name)\ + if (copy_from_user(&ARG_name, arg, sizeof(ARG_name))) {\ + ret = -EFAULT;\ + break;\ + } +#define ARGR(ARG_name) ARG_name +#define ARGA(ARG_name) &ARG_name +#define ARG_OUT(ARG_name)\ + if (copy_to_user(arg, &ARG_name, sizeof(ARG_name))) {\ + ret = -EFAULT;\ + break;\ + } + +#endif + +int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg) +{ + int ret = 0; + + switch(cmd) { + case VIDIOCPWCRUSER: + { + if (pwc_restore_user(pdev)) + ret = -EINVAL; + break; + } + + case VIDIOCPWCSUSER: + { + if (pwc_save_user(pdev)) + ret = -EINVAL; + break; + } + + case VIDIOCPWCFACTORY: + { + if (pwc_restore_factory(pdev)) + ret = -EINVAL; + break; + } + + case VIDIOCPWCSCQUAL: + { + ARG_DEF(int, qual) + + ARG_IN(qual) + if (ARGR(qual) < 0 || ARGR(qual) > 3) + ret = -EINVAL; + else + ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot); + if (ret >= 0) + pdev->vcompression = ARGR(qual); + break; + } + + case VIDIOCPWCGCQUAL: + { + ARG_DEF(int, qual) + + ARGR(qual) = pdev->vcompression; + ARG_OUT(qual) + break; + } + + case VIDIOCPWCPROBE: + { + ARG_DEF(struct pwc_probe, probe) + + strcpy(ARGR(probe).name, pdev->vdev->name); + ARGR(probe).type = pdev->type; + ARG_OUT(probe) + break; + } + + case VIDIOCPWCGSERIAL: + { + ARG_DEF(struct pwc_serial, serial) + + strcpy(ARGR(serial).serial, pdev->serial); + ARG_OUT(serial) + break; + } + + case VIDIOCPWCSAGC: + { + ARG_DEF(int, agc) + + ARG_IN(agc) + if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc))) + ret = -EINVAL; + break; + } + + case VIDIOCPWCGAGC: + { + ARG_DEF(int, agc) + + if (pwc_get_agc(pdev, ARGA(agc))) + ret = -EINVAL; + ARG_OUT(agc) + break; + } + + case VIDIOCPWCSSHUTTER: + { + ARG_DEF(int, shutter_speed) + + ARG_IN(shutter_speed) + ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed)); + break; + } + + case VIDIOCPWCSAWB: + { + ARG_DEF(struct pwc_whitebalance, wb) + + ARG_IN(wb) + ret = pwc_set_awb(pdev, ARGR(wb).mode); + if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) { + pwc_set_red_gain(pdev, ARGR(wb).manual_red); + pwc_set_blue_gain(pdev, ARGR(wb).manual_blue); + } + break; + } + + case VIDIOCPWCGAWB: + { + ARG_DEF(struct pwc_whitebalance, wb) + + memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance)); + ARGR(wb).mode = pwc_get_awb(pdev); + if (ARGR(wb).mode < 0) + ret = -EINVAL; + else { + if (ARGR(wb).mode == PWC_WB_MANUAL) { + ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red); + if (ret < 0) + break; + ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue); + if (ret < 0) + break; + } + if (ARGR(wb).mode == PWC_WB_AUTO) { + ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red); + if (ret < 0) + break; + ret =pwc_read_blue_gain(pdev, &ARGR(wb).read_blue); + if (ret < 0) + break; + } + } + ARG_OUT(wb) + break; + } + + case VIDIOCPWCSAWBSPEED: + { + ARG_DEF(struct pwc_wb_speed, wbs) + + if (ARGR(wbs).control_speed > 0) { + ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed); + } + if (ARGR(wbs).control_delay > 0) { + ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay); + } + break; + } + + case VIDIOCPWCGAWBSPEED: + { + ARG_DEF(struct pwc_wb_speed, wbs) + + ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed); + if (ret < 0) + break; + ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay); + if (ret < 0) + break; + ARG_OUT(wbs) + break; + } + + case VIDIOCPWCSLED: + { + ARG_DEF(struct pwc_leds, leds) + + ARG_IN(leds) + ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off); + break; + } + + + case VIDIOCPWCGLED: + { + ARG_DEF(struct pwc_leds, leds) + + ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off); + ARG_OUT(leds) + break; + } + + case VIDIOCPWCSCONTOUR: + { + ARG_DEF(int, contour) + + ARG_IN(contour) + ret = pwc_set_contour(pdev, ARGR(contour)); + break; + } + + case VIDIOCPWCGCONTOUR: + { + ARG_DEF(int, contour) + + ret = pwc_get_contour(pdev, ARGA(contour)); + ARG_OUT(contour) + break; + } + + case VIDIOCPWCSBACKLIGHT: + { + ARG_DEF(int, backlight) + + ARG_IN(backlight) + ret = pwc_set_backlight(pdev, ARGR(backlight)); + break; + } + + case VIDIOCPWCGBACKLIGHT: + { + ARG_DEF(int, backlight) + + ret = pwc_get_backlight(pdev, ARGA(backlight)); + ARG_OUT(backlight) + break; + } + + case VIDIOCPWCSFLICKER: + { + ARG_DEF(int, flicker) + + ARG_IN(flicker) + ret = pwc_set_flicker(pdev, ARGR(flicker)); + break; + } + + case VIDIOCPWCGFLICKER: + { + ARG_DEF(int, flicker) + + ret = pwc_get_flicker(pdev, ARGA(flicker)); + ARG_OUT(flicker) + break; + } + + case VIDIOCPWCSDYNNOISE: + { + ARG_DEF(int, dynnoise) + + ARG_IN(dynnoise) + ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise)); + break; + } + + case VIDIOCPWCGDYNNOISE: + { + ARG_DEF(int, dynnoise) + + ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise)); + ARG_OUT(dynnoise); + break; + } + + case VIDIOCPWCGREALSIZE: + { + ARG_DEF(struct pwc_imagesize, size) + + ARGR(size).width = pdev->image.x; + ARGR(size).height = pdev->image.y; + ARG_OUT(size) + break; + } + + case VIDIOCPWCMPTRESET: + { + if (pdev->features & FEATURE_MOTOR_PANTILT) + { + ARG_DEF(int, flags) + + ARG_IN(flags) + ret = pwc_mpt_reset(pdev, ARGR(flags)); + if (ret >= 0) + { + pdev->pan_angle = 0; + pdev->tilt_angle = 0; + } + } + else + { + ret = -ENXIO; + } + break; + } + + case VIDIOCPWCMPTGRANGE: + { + if (pdev->features & FEATURE_MOTOR_PANTILT) + { + ARG_DEF(struct pwc_mpt_range, range) + + ARGR(range) = pdev->angle_range; + ARG_OUT(range) + } + else + { + ret = -ENXIO; + } + break; + } + + case VIDIOCPWCMPTSANGLE: + { + int new_pan, new_tilt; + + if (pdev->features & FEATURE_MOTOR_PANTILT) + { + ARG_DEF(struct pwc_mpt_angles, angles) + + ARG_IN(angles) + /* The camera can only set relative angles, so + do some calculations when getting an absolute angle . + */ + if (ARGR(angles).absolute) + { + new_pan = ARGR(angles).pan; + new_tilt = ARGR(angles).tilt; + } + else + { + new_pan = pdev->pan_angle + ARGR(angles).pan; + new_tilt = pdev->tilt_angle + ARGR(angles).tilt; + } + /* check absolute ranges */ + if (new_pan < pdev->angle_range.pan_min || + new_pan > pdev->angle_range.pan_max || + new_tilt < pdev->angle_range.tilt_min || + new_tilt > pdev->angle_range.tilt_max) + { + ret = -ERANGE; + } + else + { + /* go to relative range, check again */ + new_pan -= pdev->pan_angle; + new_tilt -= pdev->tilt_angle; + /* angles are specified in degrees * 100, thus the limit = 36000 */ + if (new_pan < -36000 || new_pan > 36000 || new_tilt < -36000 || new_tilt > 36000) + ret = -ERANGE; + } + if (ret == 0) /* no errors so far */ + { + ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt); + if (ret >= 0) + { + pdev->pan_angle += new_pan; + pdev->tilt_angle += new_tilt; + } + if (ret == -EPIPE) /* stall -> out of range */ + ret = -ERANGE; + } + } + else + { + ret = -ENXIO; + } + break; + } + + case VIDIOCPWCMPTGANGLE: + { + + if (pdev->features & FEATURE_MOTOR_PANTILT) + { + ARG_DEF(struct pwc_mpt_angles, angles) + + ARGR(angles).absolute = 1; + ARGR(angles).pan = pdev->pan_angle; + ARGR(angles).tilt = pdev->tilt_angle; + ARG_OUT(angles) + } + else + { + ret = -ENXIO; + } + break; + } + + case VIDIOCPWCMPTSTATUS: + { + if (pdev->features & FEATURE_MOTOR_PANTILT) + { + ARG_DEF(struct pwc_mpt_status, status) + + ret = pwc_mpt_get_status(pdev, ARGA(status)); + ARG_OUT(status) + } + else + { + ret = -ENXIO; + } + break; + } + + case VIDIOCPWCGVIDCMD: + { + ARG_DEF(struct pwc_video_command, cmd); + + ARGR(cmd).type = pdev->type; + ARGR(cmd).release = pdev->release; + ARGR(cmd).command_len = pdev->cmd_len; + memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len); + ARGR(cmd).bandlength = pdev->vbandlength; + ARGR(cmd).frame_size = pdev->frame_size; + ARG_OUT(cmd) + break; + } + /* + case VIDIOCPWCGVIDTABLE: + { + ARG_DEF(struct pwc_table_init_buffer, table); + ARGR(table).len = pdev->cmd_len; + memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size); + ARG_OUT(table) + break; + } + */ + + default: + ret = -ENOIOCTLCMD; + break; + } + + if (ret > 0) + return 0; + return ret; +} + + + |