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path: root/drivers/media/video/gspca/mars.c
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Diffstat (limited to 'drivers/media/video/gspca/mars.c')
-rw-r--r--drivers/media/video/gspca/mars.c506
1 files changed, 304 insertions, 202 deletions
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c
index 3d2090e67a63..75e8d14e4ac7 100644
--- a/drivers/media/video/gspca/mars.c
+++ b/drivers/media/video/gspca/mars.c
@@ -32,17 +32,91 @@ MODULE_LICENSE("GPL");
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
- char qindex;
+ u8 brightness;
+ u8 colors;
+ u8 gamma;
+ u8 sharpness;
+ u8 quality;
+#define QUALITY_MIN 40
+#define QUALITY_MAX 70
+#define QUALITY_DEF 50
+
+ u8 *jpeg_hdr;
};
/* 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_setcolors(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
+
static struct ctrl sd_ctrls[] = {
+ {
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = 0,
+ .maximum = 30,
+ .step = 1,
+#define BRIGHTNESS_DEF 15
+ .default_value = BRIGHTNESS_DEF,
+ },
+ .set = sd_setbrightness,
+ .get = sd_getbrightness,
+ },
+ {
+ {
+ .id = V4L2_CID_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Color",
+ .minimum = 1,
+ .maximum = 255,
+ .step = 1,
+#define COLOR_DEF 200
+ .default_value = COLOR_DEF,
+ },
+ .set = sd_setcolors,
+ .get = sd_getcolors,
+ },
+ {
+ {
+ .id = V4L2_CID_GAMMA,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gamma",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+#define GAMMA_DEF 1
+ .default_value = GAMMA_DEF,
+ },
+ .set = sd_setgamma,
+ .get = sd_getgamma,
+ },
+ {
+ {
+ .id = V4L2_CID_SHARPNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Sharpness",
+ .minimum = 0,
+ .maximum = 2,
+ .step = 1,
+#define SHARPNESS_DEF 1
+ .default_value = SHARPNESS_DEF,
+ },
+ .set = sd_setsharpness,
+ .get = sd_getsharpness,
+ },
};
static const struct v4l2_pix_format vga_mode[] = {
{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 320,
- .sizeimage = 320 * 240 * 3 / 8 + 589,
+ .sizeimage = 320 * 240 * 3 / 8 + 590,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 2},
{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
@@ -52,65 +126,45 @@ static const struct v4l2_pix_format vga_mode[] = {
.priv = 1},
};
-/* MI Register table //elvis */
-enum {
- REG_HW_MI_0,
- REG_HW_MI_1,
- REG_HW_MI_2,
- REG_HW_MI_3,
- REG_HW_MI_4,
- REG_HW_MI_5,
- REG_HW_MI_6,
- REG_HW_MI_7,
- REG_HW_MI_9 = 0x09,
- REG_HW_MI_B = 0x0B,
- REG_HW_MI_C,
- REG_HW_MI_D,
- REG_HW_MI_1E = 0x1E,
- REG_HW_MI_20 = 0x20,
- REG_HW_MI_2B = 0x2B,
- REG_HW_MI_2C,
- REG_HW_MI_2D,
- REG_HW_MI_2E,
- REG_HW_MI_35 = 0x35,
- REG_HW_MI_5F = 0x5f,
- REG_HW_MI_60,
- REG_HW_MI_61,
- REG_HW_MI_62,
- REG_HW_MI_63,
- REG_HW_MI_64,
- REG_HW_MI_F1 = 0xf1,
- ATTR_TOTAL_MI_REG = 0xf2
+static const __u8 mi_data[0x20] = {
+/* 01 02 03 04 05 06 07 08 */
+ 0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
+/* 09 0a 0b 0c 0d 0e 0f 10 */
+ 0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
+/* 11 12 13 14 15 16 17 18 */
+ 0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
+/* 19 1a 1b 1c 1d 1e 1f 20 */
+ 0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
};
-/* the bytes to write are in gspca_dev->usb_buf */
+/* write <len> bytes from gspca_dev->usb_buf */
static int reg_w(struct gspca_dev *gspca_dev,
- __u16 index, int len)
+ int len)
{
- int rc;
-
- rc = usb_control_msg(gspca_dev->dev,
- usb_sndbulkpipe(gspca_dev->dev, 4),
- 0x12,
- 0xc8, /* ?? */
- 0, /* value */
- index, gspca_dev->usb_buf, len, 500);
- if (rc < 0)
- PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc);
- return rc;
+ int alen, ret;
+
+ ret = usb_bulk_msg(gspca_dev->dev,
+ usb_sndbulkpipe(gspca_dev->dev, 4),
+ gspca_dev->usb_buf,
+ len,
+ &alen,
+ 500); /* timeout in milliseconds */
+ if (ret < 0)
+ PDEBUG(D_ERR, "reg write [%02x] error %d",
+ gspca_dev->usb_buf[0], ret);
+ return ret;
}
-static void bulk_w(struct gspca_dev *gspca_dev,
- __u16 *pch,
- __u16 Address)
+static void mi_w(struct gspca_dev *gspca_dev,
+ u8 addr,
+ u8 value)
{
gspca_dev->usb_buf[0] = 0x1f;
gspca_dev->usb_buf[1] = 0; /* control byte */
- gspca_dev->usb_buf[2] = Address;
- gspca_dev->usb_buf[3] = *pch >> 8; /* high byte */
- gspca_dev->usb_buf[4] = *pch; /* low byte */
+ gspca_dev->usb_buf[2] = addr;
+ gspca_dev->usb_buf[3] = value;
- reg_w(gspca_dev, Address, 5);
+ reg_w(gspca_dev, 4);
}
/* this function is called at probe time */
@@ -121,10 +175,14 @@ static int sd_config(struct gspca_dev *gspca_dev,
struct cam *cam;
cam = &gspca_dev->cam;
- cam->epaddr = 0x01;
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);
- sd->qindex = 1; /* set the quantization table */
+ sd->brightness = BRIGHTNESS_DEF;
+ sd->colors = COLOR_DEF;
+ sd->gamma = GAMMA_DEF;
+ sd->sharpness = SHARPNESS_DEF;
+ sd->quality = QUALITY_DEF;
+ gspca_dev->nbalt = 9; /* use the altsetting 08 */
return 0;
}
@@ -136,24 +194,22 @@ static int sd_init(struct gspca_dev *gspca_dev)
static int sd_start(struct gspca_dev *gspca_dev)
{
+ struct sd *sd = (struct sd *) gspca_dev;
int err_code;
- __u8 *data;
- __u16 *MI_buf;
- int h_size, v_size;
- int intpipe;
-
- PDEBUG(D_STREAM, "camera start, iface %d, alt 8", gspca_dev->iface);
- err_code = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 8);
- if (err_code < 0) {
- PDEBUG(D_ERR|D_STREAM, "Set packet size: set interface error");
- return err_code;
- }
+ u8 *data;
+ int i;
+
+ /* create the JPEG header */
+ sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+ jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+ 0x21); /* JPEG 422 */
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
data = gspca_dev->usb_buf;
+
data[0] = 0x01; /* address */
data[1] = 0x01;
-
- err_code = reg_w(gspca_dev, data[0], 2);
+ err_code = reg_w(gspca_dev, 2);
if (err_code < 0)
return err_code;
@@ -163,30 +219,28 @@ static int sd_start(struct gspca_dev *gspca_dev)
data[0] = 0x00; /* address */
data[1] = 0x0c | 0x01; /* reg 0 */
data[2] = 0x01; /* reg 1 */
- h_size = gspca_dev->width;
- v_size = gspca_dev->height;
- data[3] = h_size / 8; /* h_size , reg 2 */
- data[4] = v_size / 8; /* v_size , reg 3 */
+ data[3] = gspca_dev->width / 8; /* h_size , reg 2 */
+ data[4] = gspca_dev->height / 8; /* v_size , reg 3 */
data[5] = 0x30; /* reg 4, MI, PAS5101 :
* 0x30 for 24mhz , 0x28 for 12mhz */
- data[6] = 4; /* reg 5, H start */
- data[7] = 0xc0; /* reg 6, gamma 1.5 */
- data[8] = 3; /* reg 7, V start */
+ data[6] = 0x02; /* reg 5, H start - was 0x04 */
+ data[7] = sd->gamma * 0x40; /* reg 0x06: gamma */
+ data[8] = 0x01; /* reg 7, V start - was 0x03 */
/* if (h_size == 320 ) */
/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
/* else */
data[9] = 0x52; /* reg 8, 24MHz, no scale down */
- data[10] = 0x5d; /* reg 9, I2C device address
- * [for PAS5101 (0x40)] [for MI (0x5d)] */
+/*jfm: from win trace*/
+ data[10] = 0x18;
- err_code = reg_w(gspca_dev, data[0], 11);
+ err_code = reg_w(gspca_dev, 11);
if (err_code < 0)
return err_code;
data[0] = 0x23; /* address */
data[1] = 0x09; /* reg 35, append frame header */
- err_code = reg_w(gspca_dev, data[0], 2);
+ err_code = reg_w(gspca_dev, 2);
if (err_code < 0)
return err_code;
@@ -197,137 +251,57 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* else */
data[1] = 50; /* 50 reg 60, pc-cam frame size
* (unit: 4KB) 200KB */
- err_code = reg_w(gspca_dev, data[0], 2);
+ err_code = reg_w(gspca_dev, 2);
if (err_code < 0)
return err_code;
- if (0) { /* fixed dark-gain */
- data[1] = 0; /* reg 94, Y Gain (1.75) */
- data[2] = 0; /* reg 95, UV Gain (1.75) */
- data[3] = 0x3f; /* reg 96, Y Gain/UV Gain/disable
- * auto dark-gain */
- data[4] = 0; /* reg 97, set fixed dark level */
- data[5] = 0; /* reg 98, don't care */
- } else { /* auto dark-gain */
- data[1] = 0; /* reg 94, Y Gain (auto) */
- data[2] = 0; /* reg 95, UV Gain (1.75) */
- data[3] = 0x78; /* reg 96, Y Gain/UV Gain/disable
- * auto dark-gain */
- switch (gspca_dev->width) {
-/* case 1280: */
-/* data[4] = 154;
- * reg 97, %3 shadow point (unit: 256 pixel) */
-/* data[5] = 51;
- * reg 98, %1 highlight point
- * (uint: 256 pixel) */
-/* break; */
- default:
-/* case 640: */
- data[4] = 36; /* reg 97, %3 shadow point
- * (unit: 256 pixel) */
- data[5] = 12; /* reg 98, %1 highlight point
- * (uint: 256 pixel) */
- break;
- case 320:
- data[4] = 9; /* reg 97, %3 shadow point
- * (unit: 256 pixel) */
- data[5] = 3; /* reg 98, %1 highlight point
- * (uint: 256 pixel) */
- break;
- }
- }
/* auto dark-gain */
data[0] = 0x5e; /* address */
-
- err_code = reg_w(gspca_dev, data[0], 6);
+ data[1] = 0; /* reg 94, Y Gain (auto) */
+/*jfm: from win trace*/
+ /* reg 0x5f/0x60 (LE) = saturation */
+ /* h (60): xxxx x100
+ * l (5f): xxxx x000 */
+ data[2] = sd->colors << 3;
+ data[3] = ((sd->colors >> 2) & 0xf8) | 0x04;
+ data[4] = sd->brightness; /* reg 0x61 = brightness */
+ data[5] = 0x00;
+
+ err_code = reg_w(gspca_dev, 6);
if (err_code < 0)
return err_code;
data[0] = 0x67;
- data[1] = 0x13; /* reg 103, first pixel B, disable sharpness */
- err_code = reg_w(gspca_dev, data[0], 2);
+/*jfm: from win trace*/
+ data[1] = sd->sharpness * 4 + 3;
+ data[2] = 0x14;
+ err_code = reg_w(gspca_dev, 3);
if (err_code < 0)
return err_code;
- /*
- * initialize the value of MI sensor...
- */
- MI_buf = kzalloc(ATTR_TOTAL_MI_REG * sizeof *MI_buf, GFP_KERNEL);
- MI_buf[REG_HW_MI_1] = 0x000a;
- MI_buf[REG_HW_MI_2] = 0x000c;
- MI_buf[REG_HW_MI_3] = 0x0405;
- MI_buf[REG_HW_MI_4] = 0x0507;
- /* mi_Attr_Reg_[REG_HW_MI_5] = 0x01ff;//13 */
- MI_buf[REG_HW_MI_5] = 0x0013; /* 13 */
- MI_buf[REG_HW_MI_6] = 0x001f; /* vertical blanking */
- /* mi_Attr_Reg_[REG_HW_MI_6] = 0x0400; // vertical blanking */
- MI_buf[REG_HW_MI_7] = 0x0002;
- /* mi_Attr_Reg_[REG_HW_MI_9] = 0x015f; */
- /* mi_Attr_Reg_[REG_HW_MI_9] = 0x030f; */
- MI_buf[REG_HW_MI_9] = 0x0374;
- MI_buf[REG_HW_MI_B] = 0x0000;
- MI_buf[REG_HW_MI_C] = 0x0000;
- MI_buf[REG_HW_MI_D] = 0x0000;
- MI_buf[REG_HW_MI_1E] = 0x8000;
-/* mi_Attr_Reg_[REG_HW_MI_20] = 0x1104; */
- MI_buf[REG_HW_MI_20] = 0x1104; /* 0x111c; */
- MI_buf[REG_HW_MI_2B] = 0x0008;
-/* mi_Attr_Reg_[REG_HW_MI_2C] = 0x000f; */
- MI_buf[REG_HW_MI_2C] = 0x001f; /* lita suggest */
- MI_buf[REG_HW_MI_2D] = 0x0008;
- MI_buf[REG_HW_MI_2E] = 0x0008;
- MI_buf[REG_HW_MI_35] = 0x0051;
- MI_buf[REG_HW_MI_5F] = 0x0904; /* fail to write */
- MI_buf[REG_HW_MI_60] = 0x0000;
- MI_buf[REG_HW_MI_61] = 0x0000;
- MI_buf[REG_HW_MI_62] = 0x0498;
- MI_buf[REG_HW_MI_63] = 0x0000;
- MI_buf[REG_HW_MI_64] = 0x0000;
- MI_buf[REG_HW_MI_F1] = 0x0001;
- /* changing while setting up the different value of dx/dy */
-
- if (gspca_dev->width != 1280) {
- MI_buf[0x01] = 0x010a;
- MI_buf[0x02] = 0x014c;
- MI_buf[0x03] = 0x01e5;
- MI_buf[0x04] = 0x0287;
- }
- MI_buf[0x20] = 0x1104;
-
- bulk_w(gspca_dev, MI_buf + 1, 1);
- bulk_w(gspca_dev, MI_buf + 2, 2);
- bulk_w(gspca_dev, MI_buf + 3, 3);
- bulk_w(gspca_dev, MI_buf + 4, 4);
- bulk_w(gspca_dev, MI_buf + 5, 5);
- bulk_w(gspca_dev, MI_buf + 6, 6);
- bulk_w(gspca_dev, MI_buf + 7, 7);
- bulk_w(gspca_dev, MI_buf + 9, 9);
- bulk_w(gspca_dev, MI_buf + 0x0b, 0x0b);
- bulk_w(gspca_dev, MI_buf + 0x0c, 0x0c);
- bulk_w(gspca_dev, MI_buf + 0x0d, 0x0d);
- bulk_w(gspca_dev, MI_buf + 0x1e, 0x1e);
- bulk_w(gspca_dev, MI_buf + 0x20, 0x20);
- bulk_w(gspca_dev, MI_buf + 0x2b, 0x2b);
- bulk_w(gspca_dev, MI_buf + 0x2c, 0x2c);
- bulk_w(gspca_dev, MI_buf + 0x2d, 0x2d);
- bulk_w(gspca_dev, MI_buf + 0x2e, 0x2e);
- bulk_w(gspca_dev, MI_buf + 0x35, 0x35);
- bulk_w(gspca_dev, MI_buf + 0x5f, 0x5f);
- bulk_w(gspca_dev, MI_buf + 0x60, 0x60);
- bulk_w(gspca_dev, MI_buf + 0x61, 0x61);
- bulk_w(gspca_dev, MI_buf + 0x62, 0x62);
- bulk_w(gspca_dev, MI_buf + 0x63, 0x63);
- bulk_w(gspca_dev, MI_buf + 0x64, 0x64);
- bulk_w(gspca_dev, MI_buf + 0xf1, 0xf1);
- kfree(MI_buf);
-
- intpipe = usb_sndintpipe(gspca_dev->dev, 0);
- err_code = usb_clear_halt(gspca_dev->dev, intpipe);
+ data[0] = 0x69;
+ data[1] = 0x2f;
+ data[2] = 0x28;
+ data[3] = 0x42;
+ err_code = reg_w(gspca_dev, 4);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x63;
+ data[1] = 0x07;
+ err_code = reg_w(gspca_dev, 2);
+/*jfm: win trace - many writes here to reg 0x64*/
+ if (err_code < 0)
+ return err_code;
+
+ /* initialize the MI sensor */
+ for (i = 0; i < sizeof mi_data; i++)
+ mi_w(gspca_dev, i + 1, mi_data[i]);
data[0] = 0x00;
data[1] = 0x4d; /* ISOC transfering enable... */
- reg_w(gspca_dev, data[0], 2);
- return err_code;
+ reg_w(gspca_dev, 2);
+ return 0;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
@@ -336,11 +310,18 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
gspca_dev->usb_buf[0] = 1;
gspca_dev->usb_buf[1] = 0;
- result = reg_w(gspca_dev, gspca_dev->usb_buf[0], 2);
+ result = reg_w(gspca_dev, 2);
if (result < 0)
PDEBUG(D_ERR, "Camera Stop failed");
}
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ kfree(sd->jpeg_hdr);
+}
+
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
__u8 *data, /* isoc packet */
@@ -363,16 +344,16 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
|| data[5 + p] == 0x65
|| data[5 + p] == 0x66
|| data[5 + p] == 0x67) {
- PDEBUG(D_PACK, "sof offset: %d leng: %d",
+ PDEBUG(D_PACK, "sof offset: %d len: %d",
p, len);
frame = gspca_frame_add(gspca_dev, LAST_PACKET,
- frame, data, 0);
+ frame, data, p);
/* put the JPEG header */
- jpeg_put_header(gspca_dev, frame,
- sd->qindex, 0x21);
- data += 16;
- len -= 16;
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+ sd->jpeg_hdr, JPEG_HDR_SZ);
+ data += p + 16;
+ len -= p + 16;
break;
}
}
@@ -380,6 +361,121 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
+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) {
+ gspca_dev->usb_buf[0] = 0x61;
+ gspca_dev->usb_buf[1] = val;
+ reg_w(gspca_dev, 2);
+ }
+ 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_setcolors(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->colors = val;
+ if (gspca_dev->streaming) {
+
+ /* see sd_start */
+ gspca_dev->usb_buf[0] = 0x5f;
+ gspca_dev->usb_buf[1] = sd->colors << 3;
+ gspca_dev->usb_buf[2] = ((sd->colors >> 2) & 0xf8) | 0x04;
+ reg_w(gspca_dev, 3);
+ }
+ return 0;
+}
+
+static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->colors;
+ return 0;
+}
+
+static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->gamma = val;
+ if (gspca_dev->streaming) {
+ gspca_dev->usb_buf[0] = 0x06;
+ gspca_dev->usb_buf[1] = val * 0x40;
+ reg_w(gspca_dev, 2);
+ }
+ return 0;
+}
+
+static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->gamma;
+ return 0;
+}
+
+static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->sharpness = val;
+ if (gspca_dev->streaming) {
+ gspca_dev->usb_buf[0] = 0x67;
+ gspca_dev->usb_buf[1] = val * 4 + 3;
+ reg_w(gspca_dev, 2);
+ }
+ return 0;
+}
+
+static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->sharpness;
+ return 0;
+}
+
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -389,7 +485,10 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
+ .stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
@@ -421,8 +520,11 @@ static struct usb_driver sd_driver = {
/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
- if (usb_register(&sd_driver) < 0)
- return -1;
+ int ret;
+
+ ret = usb_register(&sd_driver);
+ if (ret < 0)
+ return ret;
PDEBUG(D_PROBE, "registered");
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.