v4.19.13 snapshot.
diff --git a/drivers/media/usb/pwc/pwc-ctrl.c b/drivers/media/usb/pwc/pwc-ctrl.c
new file mode 100644
index 0000000..655cef3
--- /dev/null
+++ b/drivers/media/usb/pwc/pwc-ctrl.c
@@ -0,0 +1,555 @@
+/* Driver for Philips webcam
+ Functions that send various control messages to the webcam, including
+ video modes.
+ (C) 1999-2003 Nemosoft Unv.
+ (C) 2004-2006 Luc Saillard (luc@saillard.org)
+ (C) 2011 Hans de Goede <hdegoede@redhat.com>
+
+ 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 <linux/uaccess.h>
+#endif
+#include <asm/errno.h>
+
+#include "pwc.h"
+#include "pwc-kiara.h"
+#include "pwc-timon.h"
+#include "pwc-dec1.h"
+#include "pwc-dec23.h"
+
+/* Selectors for status controls used only in this file */
+#define GET_STATUS_B00 0x0B00
+#define SENSOR_TYPE_FORMATTER1 0x0C00
+#define GET_STATUS_3000 0x3000
+#define READ_RAW_Y_MEAN_FORMATTER 0x3100
+#define SET_POWER_SAVE_MODE_FORMATTER 0x3200
+#define MIRROR_IMAGE_FORMATTER 0x3300
+#define LED_FORMATTER 0x3400
+#define LOWLIGHT 0x3500
+#define GET_STATUS_3600 0x3600
+#define SENSOR_TYPE_FORMATTER2 0x3700
+#define GET_STATUS_3800 0x3800
+#define GET_STATUS_4000 0x4000
+#define GET_STATUS_4100 0x4100 /* Get */
+#define CTL_STATUS_4200 0x4200 /* [GS] 1 */
+
+/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
+#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
+
+static const 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.
+ */
+
+#define PWC_FPS_MAX_NALA 8
+
+struct Nala_table_entry {
+ char alternate; /* USB alternate setting */
+ int compressed; /* Compressed yes/no */
+
+ unsigned char mode[3]; /* precomputed mode table */
+};
+
+static unsigned int Nala_fps_vector[PWC_FPS_MAX_NALA] = { 4, 5, 7, 10, 12, 15, 20, 24 };
+
+static struct Nala_table_entry Nala_table[PSZ_MAX][PWC_FPS_MAX_NALA] =
+{
+#include "pwc-nala.h"
+};
+
+/****************************************************************************/
+
+static int recv_control_msg(struct pwc_device *pdev,
+ u8 request, u16 value, int recv_count)
+{
+ int rc;
+
+ rc = usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0),
+ request,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 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);
+ return rc;
+}
+
+static inline int send_video_command(struct pwc_device *pdev,
+ int index, const unsigned char *buf, int 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 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)
+{
+ int fps, ret = 0;
+ 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)
+ return -EINVAL;
+ if (frames < 4)
+ frames = 4;
+ else if (size > PSZ_QCIF && frames > 15)
+ frames = 15;
+ else if (frames > 25)
+ frames = 25;
+ frames = frames2frames[frames];
+ fps = frames2table[frames];
+ pEntry = &Nala_table[size][fps];
+ if (pEntry->alternate == 0)
+ return -EINVAL;
+
+ if (send_to_cam)
+ 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, pEntry->mode);
+
+ /* Set various parameters */
+ pdev->pixfmt = pixfmt;
+ pdev->vframes = frames;
+ pdev->valternate = pEntry->alternate;
+ pdev->width = pwc_image_sizes[size][0];
+ pdev->height = pwc_image_sizes[size][1];
+ pdev->frame_size = (pdev->width * pdev->height * 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;
+
+ /* Let pwc-if.c:isoc_init know we don't support higher compression */
+ *compression = 3;
+
+ return 0;
+}
+
+
+static int set_video_mode_Timon(struct pwc_device *pdev, int size, int pixfmt,
+ int frames, int *compression, int send_to_cam)
+{
+ const struct Timon_table_entry *pChoose;
+ int fps, ret = 0;
+
+ 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 */
+ 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. */
+
+ if (send_to_cam)
+ 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, pChoose->mode);
+
+ /* Set various parameters */
+ 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];
+ pdev->vbandlength = pChoose->bandlength;
+ if (pChoose->bandlength > 0)
+ pdev->frame_size = (pChoose->bandlength * pdev->height) / 4;
+ else
+ pdev->frame_size = (pdev->width * pdev->height * 12) / 8;
+ return 0;
+}
+
+
+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 = 0;
+
+ 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 */
+ 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. */
+
+ /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
+ if (send_to_cam)
+ 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, pChoose->mode);
+
+ /* All set and go */
+ 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];
+ pdev->vbandlength = pChoose->bandlength;
+ if (pdev->vbandlength > 0)
+ pdev->frame_size = (pdev->vbandlength * pdev->height) / 4;
+ else
+ pdev->frame_size = (pdev->width * pdev->height * 12) / 8;
+ PWC_TRACE("frame_size=%d, vframes=%d, vsize=%d, vbandlength=%d\n",
+ pdev->frame_size, pdev->vframes, size, pdev->vbandlength);
+ return 0;
+}
+
+int pwc_set_video_mode(struct pwc_device *pdev, int width, int height,
+ 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, 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, pixfmt, frames,
+ compression, send_to_cam);
+ } else if (DEVICE_USE_CODEC3(pdev->type)) {
+ ret = set_video_mode_Kiara(pdev, size, pixfmt, frames,
+ compression, send_to_cam);
+ } else {
+ 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);
+ return ret;
+ }
+ pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
+ PWC_DEBUG_SIZE("Set resolution to %dx%d\n", pdev->width, pdev->height);
+ return 0;
+}
+
+static unsigned int pwc_get_fps_Nala(struct pwc_device *pdev, unsigned int index, unsigned int size)
+{
+ unsigned int i;
+
+ for (i = 0; i < PWC_FPS_MAX_NALA; i++) {
+ if (Nala_table[size][i].alternate) {
+ if (index--==0) return Nala_fps_vector[i];
+ }
+ }
+ return 0;
+}
+
+static unsigned int pwc_get_fps_Kiara(struct pwc_device *pdev, unsigned int index, unsigned int size)
+{
+ unsigned int i;
+
+ for (i = 0; i < PWC_FPS_MAX_KIARA; i++) {
+ if (Kiara_table[size][i][3].alternate) {
+ if (index--==0) return Kiara_fps_vector[i];
+ }
+ }
+ return 0;
+}
+
+static unsigned int pwc_get_fps_Timon(struct pwc_device *pdev, unsigned int index, unsigned int size)
+{
+ unsigned int i;
+
+ for (i=0; i < PWC_FPS_MAX_TIMON; i++) {
+ if (Timon_table[size][i][3].alternate) {
+ if (index--==0) return Timon_fps_vector[i];
+ }
+ }
+ return 0;
+}
+
+unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size)
+{
+ unsigned int ret;
+
+ if (DEVICE_USE_CODEC1(pdev->type)) {
+ ret = pwc_get_fps_Nala(pdev, index, size);
+
+ } else if (DEVICE_USE_CODEC3(pdev->type)) {
+ ret = pwc_get_fps_Kiara(pdev, index, size);
+
+ } else {
+ ret = pwc_get_fps_Timon(pdev, index, size);
+ }
+
+ return ret;
+}
+
+int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data)
+{
+ int ret;
+
+ ret = recv_control_msg(pdev, request, value, 1);
+ if (ret < 0)
+ return ret;
+
+ *data = pdev->ctrl_buf[0];
+ return 0;
+}
+
+int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data)
+{
+ int ret;
+
+ pdev->ctrl_buf[0] = data;
+ ret = send_control_msg(pdev, request, value, pdev->ctrl_buf, 1);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data)
+{
+ int ret;
+
+ ret = recv_control_msg(pdev, request, value, 1);
+ if (ret < 0)
+ return ret;
+
+ *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;
+
+ ret = recv_control_msg(pdev, request, value, 2);
+ if (ret < 0)
+ return ret;
+
+ *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;
+
+ 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;
+
+ return 0;
+}
+
+int pwc_button_ctrl(struct pwc_device *pdev, u16 value)
+{
+ int ret;
+
+ ret = send_control_msg(pdev, SET_STATUS_CTL, value, NULL, 0);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/* POWER */
+void pwc_camera_power(struct pwc_device *pdev, int power)
+{
+ int r;
+
+ if (!pdev->power_save)
+ return;
+
+ if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
+ return; /* Not supported by Nala or Timon < release 6 */
+
+ if (power)
+ pdev->ctrl_buf[0] = 0x00; /* active */
+ else
+ 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);
+}
+
+int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
+{
+ int r;
+
+ 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;
+
+ pdev->ctrl_buf[0] = on_value;
+ pdev->ctrl_buf[1] = off_value;
+
+ r = send_control_msg(pdev,
+ SET_STATUS_CTL, LED_FORMATTER, pdev->ctrl_buf, 2);
+ if (r < 0)
+ PWC_ERROR("Failed to set LED on/off time (%d)\n", r);
+
+ return r;
+}
+
+#ifdef CONFIG_USB_PWC_DEBUG
+int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
+{
+ 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 = recv_control_msg(pdev, GET_STATUS_CTL, request, 1);
+ if (ret < 0)
+ return ret;
+ if (pdev->type < 675)
+ *sensor = pdev->ctrl_buf[0] | 0x100;
+ else
+ *sensor = pdev->ctrl_buf[0];
+ return 0;
+}
+#endif