Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/usb/media/pwc/pwc-ctrl.c b/drivers/usb/media/pwc/pwc-ctrl.c
new file mode 100644
index 0000000..26aa914
--- /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;
+}
+
+
+