#include <linux/input.h>
#include "gspca.h"
+/* Include pac common sof detection functions */
+#include "pac_common.h"
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
MODULE_DESCRIPTION("Pixart PAC207");
#define PAC207_BRIGHTNESS_MIN 0
#define PAC207_BRIGHTNESS_MAX 255
#define PAC207_BRIGHTNESS_DEFAULT 46
+#define PAC207_BRIGHTNESS_REG 0x08
#define PAC207_EXPOSURE_MIN 3
#define PAC207_EXPOSURE_MAX 90 /* 1 sec expo time / 1 fps */
#define PAC207_EXPOSURE_DEFAULT 5 /* power on default: 3 */
#define PAC207_EXPOSURE_KNEE 9 /* fps: 90 / exposure -> 9: 10 fps */
+#define PAC207_EXPOSURE_REG 0x02
#define PAC207_GAIN_MIN 0
#define PAC207_GAIN_MAX 31
#define PAC207_GAIN_DEFAULT 7 /* power on default: 9 */
#define PAC207_GAIN_KNEE 15
+#define PAC207_GAIN_REG 0x0e
#define PAC207_AUTOGAIN_DEADZONE 30
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
- u8 mode;
-
- u8 brightness;
- u8 exposure;
- u8 autogain;
- u8 gain;
+ struct v4l2_ctrl *brightness;
+ u8 mode;
u8 sof_read;
u8 header_read;
u8 autogain_ignore_frames;
atomic_t avg_lum;
};
-/* V4L2 controls supported by the driver */
-static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
-static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
-static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
-static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
-
-static const struct ctrl sd_ctrls[] = {
-#define SD_BRIGHTNESS 0
- {
- {
- .id = V4L2_CID_BRIGHTNESS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Brightness",
- .minimum = PAC207_BRIGHTNESS_MIN,
- .maximum = PAC207_BRIGHTNESS_MAX,
- .step = 1,
- .default_value = PAC207_BRIGHTNESS_DEFAULT,
- .flags = 0,
- },
- .set = sd_setbrightness,
- .get = sd_getbrightness,
- },
-#define SD_EXPOSURE 1
- {
- {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = PAC207_EXPOSURE_MIN,
- .maximum = PAC207_EXPOSURE_MAX,
- .step = 1,
- .default_value = PAC207_EXPOSURE_DEFAULT,
- .flags = 0,
- },
- .set = sd_setexposure,
- .get = sd_getexposure,
- },
-#define SD_AUTOGAIN 2
- {
- {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto Gain",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
-#define AUTOGAIN_DEF 1
- .default_value = AUTOGAIN_DEF,
- .flags = 0,
- },
- .set = sd_setautogain,
- .get = sd_getautogain,
- },
-#define SD_GAIN 3
- {
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = PAC207_GAIN_MIN,
- .maximum = PAC207_GAIN_MAX,
- .step = 1,
- .default_value = PAC207_GAIN_DEFAULT,
- .flags = 0,
- },
- .set = sd_setgain,
- .get = sd_getgain,
- },
-};
-
static const struct v4l2_pix_format sif_mode[] = {
{176, 144, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
.bytesperline = 176,
static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
- struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam;
u8 idreg[2];
cam = &gspca_dev->cam;
cam->cam_mode = sif_mode;
cam->nmodes = ARRAY_SIZE(sif_mode);
- sd->brightness = PAC207_BRIGHTNESS_DEFAULT;
- sd->exposure = PAC207_EXPOSURE_DEFAULT;
- sd->gain = PAC207_GAIN_DEFAULT;
- sd->autogain = AUTOGAIN_DEF;
return 0;
}
return gspca_dev->usb_err;
}
+static void setcontrol(struct gspca_dev *gspca_dev, u16 reg, u16 val)
+{
+ pac207_write_reg(gspca_dev, reg, val);
+ pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
+ pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
+}
+
+static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gspca_dev *gspca_dev =
+ container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+ struct sd *sd = (struct sd *)gspca_dev;
+
+ gspca_dev->usb_err = 0;
+
+ if (ctrl->id == V4L2_CID_AUTOGAIN && ctrl->is_new && ctrl->val) {
+ /* when switching to autogain set defaults to make sure
+ we are on a valid point of the autogain gain /
+ exposure knee graph, and give this change time to
+ take effect before doing autogain. */
+ gspca_dev->exposure->val = PAC207_EXPOSURE_DEFAULT;
+ gspca_dev->gain->val = PAC207_GAIN_DEFAULT;
+ sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
+ }
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ setcontrol(gspca_dev, PAC207_BRIGHTNESS_REG, ctrl->val);
+ break;
+ case V4L2_CID_AUTOGAIN:
+ if (gspca_dev->exposure->is_new || (ctrl->is_new && ctrl->val))
+ setcontrol(gspca_dev, PAC207_EXPOSURE_REG,
+ gspca_dev->exposure->val);
+ if (gspca_dev->gain->is_new || (ctrl->is_new && ctrl->val))
+ setcontrol(gspca_dev, PAC207_GAIN_REG,
+ gspca_dev->gain->val);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return gspca_dev->usb_err;
+}
+
+static const struct v4l2_ctrl_ops sd_ctrl_ops = {
+ .s_ctrl = sd_s_ctrl,
+};
+
+/* this function is called at probe time */
+static int sd_init_controls(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
+
+ gspca_dev->vdev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(hdl, 4);
+
+ sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_BRIGHTNESS,
+ PAC207_BRIGHTNESS_MIN, PAC207_BRIGHTNESS_MAX,
+ 1, PAC207_BRIGHTNESS_DEFAULT);
+ gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ PAC207_EXPOSURE_MIN, PAC207_EXPOSURE_MAX,
+ 1, PAC207_EXPOSURE_DEFAULT);
+ gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_GAIN,
+ PAC207_GAIN_MIN, PAC207_GAIN_MAX,
+ 1, PAC207_GAIN_DEFAULT);
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+ v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false);
+ return 0;
+}
+
/* -- start the camera -- */
static int sd_start(struct gspca_dev *gspca_dev)
{
else
pac207_write_reg(gspca_dev, 0x4a, 0x30);
pac207_write_reg(gspca_dev, 0x4b, 0x00); /* Sram test value */
- pac207_write_reg(gspca_dev, 0x08, sd->brightness);
+ pac207_write_reg(gspca_dev, 0x08, v4l2_ctrl_g_ctrl(sd->brightness));
/* PGA global gain (Bit 4-0) */
- pac207_write_reg(gspca_dev, 0x0e, sd->gain);
- pac207_write_reg(gspca_dev, 0x02, sd->exposure); /* PXCK = 12MHz /n */
+ pac207_write_reg(gspca_dev, 0x0e,
+ v4l2_ctrl_g_ctrl(gspca_dev->gain));
+ pac207_write_reg(gspca_dev, 0x02,
+ v4l2_ctrl_g_ctrl(gspca_dev->exposure)); /* PXCK = 12MHz /n */
mode = 0x02; /* Image Format (Bit 0), LED (1), Compr. test mode (2) */
if (gspca_dev->width == 176) { /* 176x144 */
pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
}
-/* Include pac common sof detection functions */
-#include "pac_common.h"
static void pac207_do_auto_gain(struct gspca_dev *gspca_dev)
{
if (sd->autogain_ignore_frames > 0)
sd->autogain_ignore_frames--;
- else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum,
+ else if (gspca_expo_autogain(gspca_dev, avg_lum,
90, PAC207_AUTOGAIN_DEADZONE,
PAC207_GAIN_KNEE, PAC207_EXPOSURE_KNEE))
sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
}
-static void setbrightness(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- pac207_write_reg(gspca_dev, 0x08, sd->brightness);
- pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
- pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
-}
-
-static void setexposure(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- pac207_write_reg(gspca_dev, 0x02, sd->exposure);
- pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
- pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
-}
-
-static void setgain(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- pac207_write_reg(gspca_dev, 0x0e, sd->gain);
- pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
- pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
-}
-
-static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- sd->brightness = val;
- if (gspca_dev->streaming)
- setbrightness(gspca_dev);
- return 0;
-}
-
-static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- *val = sd->brightness;
- return 0;
-}
-
-static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- sd->exposure = val;
- if (gspca_dev->streaming)
- setexposure(gspca_dev);
- return 0;
-}
-
-static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- *val = sd->exposure;
- return 0;
-}
-
-static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- sd->gain = val;
- if (gspca_dev->streaming)
- setgain(gspca_dev);
- return 0;
-}
-
-static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- *val = sd->gain;
- return 0;
-}
-
-static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- sd->autogain = val;
- /* when switching to autogain set defaults to make sure
- we are on a valid point of the autogain gain /
- exposure knee graph, and give this change time to
- take effect before doing autogain. */
- if (sd->autogain) {
- sd->exposure = PAC207_EXPOSURE_DEFAULT;
- sd->gain = PAC207_GAIN_DEFAULT;
- if (gspca_dev->streaming) {
- sd->autogain_ignore_frames =
- PAC_AUTOGAIN_IGNORE_FRAMES;
- setexposure(gspca_dev);
- setgain(gspca_dev);
- }
- }
-
- return 0;
-}
-
-static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- *val = sd->autogain;
- return 0;
-}
-
#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, /* interrupt packet data */
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
- .ctrls = sd_ctrls,
- .nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config,
.init = sd_init,
+ .init_controls = sd_init_controls,
.start = sd_start,
.stopN = sd_stopN,
.dq_callback = pac207_do_auto_gain,
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff