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Diffstat (limited to 'drivers/media/video/gspca/sonixj.c')
-rw-r--r--drivers/media/video/gspca/sonixj.c353
1 files changed, 229 insertions, 124 deletions
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index d6f39ce1b7e1..6415aff5cbd1 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -29,8 +29,6 @@ MODULE_AUTHOR("Jean-François Moine <http://moinejf.free.fr>");
MODULE_DESCRIPTION("GSPCA/SONIX JPEG USB Camera Driver");
MODULE_LICENSE("GPL");
-static int starcam;
-
/* controls */
enum e_ctrl {
BRIGHTNESS,
@@ -57,11 +55,18 @@ struct sd {
atomic_t avg_lum;
u32 exposure;
+ struct work_struct work;
+ struct workqueue_struct *work_thread;
+
+ u32 pktsz; /* (used by pkt_scan) */
+ u16 npkt;
+ u8 nchg;
+ s8 short_mark;
+
u8 quality; /* image quality */
-#define QUALITY_MIN 60
-#define QUALITY_MAX 95
-#define QUALITY_DEF 80
- u8 jpegqual; /* webcam quality */
+#define QUALITY_MIN 25
+#define QUALITY_MAX 90
+#define QUALITY_DEF 70
u8 reg01;
u8 reg17;
@@ -99,6 +104,8 @@ enum sensors {
SENSOR_SP80708,
};
+static void qual_upd(struct work_struct *work);
+
/* device flags */
#define F_PDN_INV 0x01 /* inverse pin S_PWR_DN / sn_xxx tables */
#define F_ILLUM 0x02 /* presence of illuminator */
@@ -401,7 +408,7 @@ static const u8 sn_hv7131[0x1c] = {
static const u8 sn_mi0360[0x1c] = {
/* reg0 reg1 reg2 reg3 reg4 reg5 reg6 reg7 */
- 0x00, 0x61, 0x40, 0x00, 0x1a, 0x20, 0x20, 0x20,
+ 0x00, 0x63, 0x40, 0x00, 0x1a, 0x20, 0x20, 0x20,
/* reg8 reg9 rega regb regc regd rege regf */
0x81, 0x5d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* reg10 reg11 reg12 reg13 reg14 reg15 reg16 reg17 */
@@ -847,18 +854,8 @@ static const u8 mt9v111_sensor_init[][8] = {
{0xb1, 0x5c, 0x01, 0x00, 0x01, 0x00, 0x00, 0x10}, /* IFP select */
{0xb1, 0x5c, 0x08, 0x04, 0x80, 0x00, 0x00, 0x10}, /* output fmt ctrl */
{0xb1, 0x5c, 0x06, 0x00, 0x00, 0x00, 0x00, 0x10}, /* op mode ctrl */
- {0xb1, 0x5c, 0x02, 0x00, 0x16, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x03, 0x01, 0xe1, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x04, 0x02, 0x81, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x05, 0x00, 0x04, 0x00, 0x00, 0x10},
{0xb1, 0x5c, 0x01, 0x00, 0x04, 0x00, 0x00, 0x10}, /* sensor select */
- {0xb1, 0x5c, 0x02, 0x00, 0x16, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x03, 0x01, 0xe6, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x04, 0x02, 0x86, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x05, 0x00, 0x04, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x06, 0x00, 0x00, 0x00, 0x00, 0x10},
{0xb1, 0x5c, 0x08, 0x00, 0x08, 0x00, 0x00, 0x10}, /* row start */
- {0xb1, 0x5c, 0x0e, 0x00, 0x08, 0x00, 0x00, 0x10},
{0xb1, 0x5c, 0x02, 0x00, 0x16, 0x00, 0x00, 0x10}, /* col start */
{0xb1, 0x5c, 0x03, 0x01, 0xe7, 0x00, 0x00, 0x10}, /* window height */
{0xb1, 0x5c, 0x04, 0x02, 0x87, 0x00, 0x00, 0x10}, /* window width */
@@ -872,15 +869,10 @@ static const u8 mt9v111_sensor_init[][8] = {
{}
};
static const u8 mt9v111_sensor_param1[][8] = {
- {0xb1, 0x5c, 0x20, 0x00, 0x00, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x20, 0x00, 0x00, 0x00, 0x00, 0x10},
- {0xb1, 0x5c, 0x09, 0x01, 0x2c, 0x00, 0x00, 0x10},
- {0xd1, 0x5c, 0x2b, 0x00, 0x33, 0x00, 0xa0, 0x10}, /* green1 gain */
- {0xd1, 0x5c, 0x2d, 0x00, 0xa0, 0x00, 0x33, 0x10}, /* red gain */
- /*******/
- {0xb1, 0x5c, 0x06, 0x00, 0x1e, 0x00, 0x00, 0x10}, /* vert blanking */
- {0xb1, 0x5c, 0x05, 0x00, 0x0a, 0x00, 0x00, 0x10}, /* horiz blanking */
- {0xd1, 0x5c, 0x2c, 0x00, 0xad, 0x00, 0xad, 0x10}, /* blue gain */
+ {0xd1, 0x5c, 0x2b, 0x00, 0x33, 0x00, 0xad, 0x10}, /* G1 and B gains */
+ {0xd1, 0x5c, 0x2d, 0x00, 0xad, 0x00, 0x33, 0x10}, /* R and G2 gains */
+ {0xb1, 0x5c, 0x06, 0x00, 0x40, 0x00, 0x00, 0x10}, /* vert blanking */
+ {0xb1, 0x5c, 0x05, 0x00, 0x09, 0x00, 0x00, 0x10}, /* horiz blanking */
{0xb1, 0x5c, 0x35, 0x01, 0xc0, 0x00, 0x00, 0x10}, /* global gain */
{}
};
@@ -1784,7 +1776,12 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->ag_cnt = -1;
sd->quality = QUALITY_DEF;
- sd->jpegqual = 80;
+
+ /* if USB 1.1, let some bandwidth for the audio device */
+ if (gspca_dev->audio && gspca_dev->dev->speed < USB_SPEED_HIGH)
+ gspca_dev->nbalt--;
+
+ INIT_WORK(&sd->work, qual_upd);
return 0;
}
@@ -1794,7 +1791,7 @@ static int sd_init(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
const u8 *sn9c1xx;
- u8 regGpio[] = { 0x29, 0x74 }; /* with audio */
+ u8 regGpio[] = { 0x29, 0x70 }; /* no audio */
u8 regF1;
/* setup a selector by bridge */
@@ -1806,6 +1803,8 @@ static int sd_init(struct gspca_dev *gspca_dev)
if (gspca_dev->usb_err < 0)
return gspca_dev->usb_err;
PDEBUG(D_PROBE, "Sonix chip id: %02x", regF1);
+ if (gspca_dev->audio)
+ regGpio[1] |= 0x04; /* with audio */
switch (sd->bridge) {
case BRIDGE_SN9C102P:
case BRIDGE_SN9C105:
@@ -1838,14 +1837,7 @@ static int sd_init(struct gspca_dev *gspca_dev)
case BRIDGE_SN9C102P:
reg_w1(gspca_dev, 0x02, regGpio[1]);
break;
- case BRIDGE_SN9C105:
- reg_w(gspca_dev, 0x01, regGpio, 2);
- break;
- case BRIDGE_SN9C110:
- reg_w1(gspca_dev, 0x02, 0x62);
- break;
- case BRIDGE_SN9C120:
- regGpio[1] = 0x70; /* no audio */
+ default:
reg_w(gspca_dev, 0x01, regGpio, 2);
break;
}
@@ -1944,10 +1936,10 @@ static u32 setexposure(struct gspca_dev *gspca_dev,
u8 expo_c1[] =
{ 0xb1, 0x5c, 0x09, 0x00, 0x00, 0x00, 0x00, 0x10 };
- if (expo > 0x0280)
- expo = 0x0280;
- else if (expo < 0x0040)
- expo = 0x0040;
+ if (expo > 0x0390)
+ expo = 0x0390;
+ else if (expo < 0x0060)
+ expo = 0x0060;
expo_c1[3] = expo >> 8;
expo_c1[4] = expo;
i2c_w8(gspca_dev, expo_c1);
@@ -2004,10 +1996,13 @@ static void setbrightness(struct gspca_dev *gspca_dev)
sd->exposure = setexposure(gspca_dev, expo);
break;
case SENSOR_GC0307:
- case SENSOR_MT9V111:
expo = brightness;
sd->exposure = setexposure(gspca_dev, expo);
return; /* don't set the Y offset */
+ case SENSOR_MT9V111:
+ expo = brightness << 2;
+ sd->exposure = setexposure(gspca_dev, expo);
+ return; /* don't set the Y offset */
case SENSOR_OM6802:
expo = brightness << 2;
sd->exposure = setexposure(gspca_dev, expo);
@@ -2199,14 +2194,11 @@ static void setillum(struct gspca_dev *gspca_dev)
sd->ctrls[ILLUM].val ? 0x64 : 0x60);
break;
case SENSOR_MT9V111:
- if (starcam)
- reg_w1(gspca_dev, 0x02,
- sd->ctrls[ILLUM].val ?
- 0x55 : 0x54); /* 370i */
- else
- reg_w1(gspca_dev, 0x02,
- sd->ctrls[ILLUM].val ?
- 0x66 : 0x64); /* Clip */
+ reg_w1(gspca_dev, 0x02,
+ sd->ctrls[ILLUM].val ? 0x77 : 0x74);
+/* should have been: */
+/* 0x55 : 0x54); * 370i */
+/* 0x66 : 0x64); * Clip */
break;
}
}
@@ -2271,18 +2263,12 @@ static void setfreq(struct gspca_dev *gspca_dev)
static void setjpegqual(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int i, sc;
- if (sd->jpegqual < 50)
- sc = 5000 / sd->jpegqual;
- else
- sc = 200 - sd->jpegqual * 2;
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
#if USB_BUF_SZ < 64
#error "No room enough in usb_buf for quantization table"
#endif
- for (i = 0; i < 64; i++)
- gspca_dev->usb_buf[i] =
- (jpeg_head[JPEG_QT0_OFFSET + i] * sc + 50) / 100;
+ memcpy(gspca_dev->usb_buf, &sd->jpeg_hdr[JPEG_QT0_OFFSET], 64);
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0x08,
@@ -2290,9 +2276,7 @@ static void setjpegqual(struct gspca_dev *gspca_dev)
0x0100, 0,
gspca_dev->usb_buf, 64,
500);
- for (i = 0; i < 64; i++)
- gspca_dev->usb_buf[i] =
- (jpeg_head[JPEG_QT1_OFFSET + i] * sc + 50) / 100;
+ memcpy(gspca_dev->usb_buf, &sd->jpeg_hdr[JPEG_QT1_OFFSET], 64);
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0x08,
@@ -2305,6 +2289,19 @@ static void setjpegqual(struct gspca_dev *gspca_dev)
reg_w1(gspca_dev, 0x18, sd->reg18);
}
+/* JPEG quality update */
+/* This function is executed from a work queue. */
+static void qual_upd(struct work_struct *work)
+{
+ struct sd *sd = container_of(work, struct sd, work);
+ struct gspca_dev *gspca_dev = &sd->gspca_dev;
+
+ mutex_lock(&gspca_dev->usb_lock);
+ PDEBUG(D_STREAM, "qual_upd %d%%", sd->quality);
+ setjpegqual(gspca_dev);
+ mutex_unlock(&gspca_dev->usb_lock);
+}
+
/* -- start the camera -- */
static int sd_start(struct gspca_dev *gspca_dev)
{
@@ -2338,7 +2335,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* create the JPEG header */
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
- jpeg_set_qual(sd->jpeg_hdr, sd->quality);
/* initialize the bridge */
sn9c1xx = sn_tb[sd->sensor];
@@ -2619,6 +2615,11 @@ static int sd_start(struct gspca_dev *gspca_dev)
setcolors(gspca_dev);
setautogain(gspca_dev);
setfreq(gspca_dev);
+
+ sd->pktsz = sd->npkt = 0;
+ sd->nchg = sd->short_mark = 0;
+ sd->work_thread = create_singlethread_workqueue(MODULE_NAME);
+
return gspca_dev->usb_err;
}
@@ -2695,6 +2696,20 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
/* reg_w1(gspca_dev, 0xf1, 0x01); */
}
+/* called on streamoff with alt==0 and on disconnect */
+/* the usb_lock is held at entry - restore on exit */
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (sd->work_thread != NULL) {
+ mutex_unlock(&gspca_dev->usb_lock);
+ destroy_workqueue(sd->work_thread);
+ mutex_lock(&gspca_dev->usb_lock);
+ sd->work_thread = NULL;
+ }
+}
+
static void do_autogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
@@ -2732,6 +2747,7 @@ static void do_autogain(struct gspca_dev *gspca_dev)
(unsigned int) (expotimes << 8));
break;
case SENSOR_OM6802:
+ case SENSOR_MT9V111:
expotimes = sd->exposure;
expotimes += (luma_mean - delta) >> 2;
if (expotimes < 0)
@@ -2744,7 +2760,6 @@ static void do_autogain(struct gspca_dev *gspca_dev)
/* case SENSOR_MO4000: */
/* case SENSOR_MI0360: */
/* case SENSOR_MI0360B: */
-/* case SENSOR_MT9V111: */
expotimes = sd->exposure;
expotimes += (luma_mean - delta) >> 6;
if (expotimes < 0)
@@ -2757,6 +2772,29 @@ static void do_autogain(struct gspca_dev *gspca_dev)
}
}
+/* set the average luminosity from an isoc marker */
+static void set_lum(struct sd *sd,
+ u8 *data)
+{
+ int avg_lum;
+
+ /* w0 w1 w2
+ * w3 w4 w5
+ * w6 w7 w8
+ */
+ avg_lum = (data[27] << 8) + data[28] /* w3 */
+
+ + (data[31] << 8) + data[32] /* w5 */
+
+ + (data[23] << 8) + data[24] /* w1 */
+
+ + (data[35] << 8) + data[36] /* w7 */
+
+ + (data[29] << 10) + (data[30] << 2); /* w4 * 4 */
+ avg_lum >>= 10;
+ atomic_set(&sd->avg_lum, avg_lum);
+}
+
/* scan the URB packets */
/* This function is run at interrupt level. */
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
@@ -2764,70 +2802,141 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
int len) /* iso packet length */
{
struct sd *sd = (struct sd *) gspca_dev;
- int sof, avg_lum;
-
- /* the image ends on a 64 bytes block starting with
- * ff d9 ff ff 00 c4 c4 96
- * and followed by various information including luminosity */
- /* this block may be splitted between two packets */
- /* a new image always starts in a new packet */
- switch (gspca_dev->last_packet_type) {
- case DISCARD_PACKET: /* restart image building */
- sof = len - 64;
- if (sof >= 0 && data[sof] == 0xff && data[sof + 1] == 0xd9)
- gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
- return;
- case LAST_PACKET: /* put the JPEG 422 header */
+ int i, new_qual;
+
+ /*
+ * A frame ends on the marker
+ * ff ff 00 c4 c4 96 ..
+ * which is 62 bytes long and is followed by various information
+ * including statuses and luminosity.
+ *
+ * A marker may be splitted on two packets.
+ *
+ * The 6th byte of a marker contains the bits:
+ * 0x08: USB full
+ * 0xc0: frame sequence
+ * When the bit 'USB full' is set, the frame must be discarded;
+ * this is also the case when the 2 bytes before the marker are
+ * not the JPEG end of frame ('ff d9').
+ */
+
+/*fixme: assumption about the following code:
+ * - there can be only one marker in a packet
+ */
+
+ /* skip the remaining bytes of a short marker */
+ i = sd->short_mark;
+ if (i != 0) {
+ sd->short_mark = 0;
+ if (i < 0 /* if 'ff' at end of previous packet */
+ && data[0] == 0xff
+ && data[1] == 0x00)
+ goto marker_found;
+ if (data[0] == 0xff && data[1] == 0xff) {
+ i = 0;
+ goto marker_found;
+ }
+ len -= i;
+ if (len <= 0)
+ return;
+ data += i;
+ }
+
+ /* count the packets and their size */
+ sd->npkt++;
+ sd->pktsz += len;
+
+ /* search backwards if there is a marker in the packet */
+ for (i = len - 1; --i >= 0; ) {
+ if (data[i] != 0xff) {
+ i--;
+ continue;
+ }
+ if (data[i + 1] == 0xff) {
+
+ /* (there may be 'ff ff' inside a marker) */
+ if (i + 2 >= len || data[i + 2] == 0x00)
+ goto marker_found;
+ }
+ }
+
+ /* no marker found */
+ /* add the JPEG header if first fragment */
+ if (data[len - 1] == 0xff)
+ sd->short_mark = -1;
+ if (gspca_dev->last_packet_type == LAST_PACKET)
gspca_frame_add(gspca_dev, FIRST_PACKET,
sd->jpeg_hdr, JPEG_HDR_SZ);
- break;
- }
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
+ return;
+
+ /* marker found */
+ /* if some error, discard the frame and decrease the quality */
+marker_found:
+ new_qual = 0;
+ if (i > 2) {
+ if (data[i - 2] != 0xff || data[i - 1] != 0xd9) {
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ new_qual = -3;
+ }
+ } else if (i + 6 < len) {
+ if (data[i + 6] & 0x08) {
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ new_qual = -5;
+ }
+ }
- data = gspca_dev->image;
- if (data == NULL)
- return;
- sof = gspca_dev->image_len - 64;
- if (data[sof] != 0xff
- || data[sof + 1] != 0xd9)
- return;
+ gspca_frame_add(gspca_dev, LAST_PACKET, data, i);
- /* end of image found - remove the trailing data */
- gspca_dev->image_len = sof + 2;
- gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
- if (sd->ag_cnt < 0)
- return;
-/* w1 w2 w3 */
-/* w4 w5 w6 */
-/* w7 w8 */
-/* w4 */
- avg_lum = ((data[sof + 29] << 8) | data[sof + 30]) >> 6;
-/* w6 */
- avg_lum += ((data[sof + 33] << 8) | data[sof + 34]) >> 6;
-/* w2 */
- avg_lum += ((data[sof + 25] << 8) | data[sof + 26]) >> 6;
-/* w8 */
- avg_lum += ((data[sof + 37] << 8) | data[sof + 38]) >> 6;
-/* w5 */
- avg_lum += ((data[sof + 31] << 8) | data[sof + 32]) >> 4;
- avg_lum >>= 4;
- atomic_set(&sd->avg_lum, avg_lum);
-}
+ /* compute the filling rate and a new JPEG quality */
+ if (new_qual == 0) {
+ int r;
-static int sd_set_jcomp(struct gspca_dev *gspca_dev,
- struct v4l2_jpegcompression *jcomp)
-{
- struct sd *sd = (struct sd *) gspca_dev;
+ r = (sd->pktsz * 100) /
+ (sd->npkt *
+ gspca_dev->urb[0]->iso_frame_desc[0].length);
+ if (r >= 85)
+ new_qual = -3;
+ else if (r < 75)
+ new_qual = 2;
+ }
+ if (new_qual != 0) {
+ sd->nchg += new_qual;
+ if (sd->nchg < -6 || sd->nchg >= 12) {
+ sd->nchg = 0;
+ new_qual += sd->quality;
+ if (new_qual < QUALITY_MIN)
+ new_qual = QUALITY_MIN;
+ else if (new_qual > QUALITY_MAX)
+ new_qual = QUALITY_MAX;
+ if (new_qual != sd->quality) {
+ sd->quality = new_qual;
+ queue_work(sd->work_thread, &sd->work);
+ }
+ }
+ } else {
+ sd->nchg = 0;
+ }
+ sd->pktsz = sd->npkt = 0;
- 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;
+ /* if the marker is smaller than 62 bytes,
+ * memorize the number of bytes to skip in the next packet */
+ if (i + 62 > len) { /* no more usable data */
+ sd->short_mark = i + 62 - len;
+ return;
+ }
+ if (sd->ag_cnt >= 0)
+ set_lum(sd, data + i);
+
+ /* if more data, start a new frame */
+ i += 62;
+ if (i < len) {
+ data += i;
+ len -= i;
+ gspca_frame_add(gspca_dev, FIRST_PACKET,
+ sd->jpeg_hdr, JPEG_HDR_SZ);
+ gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
+ }
}
static int sd_get_jcomp(struct gspca_dev *gspca_dev,
@@ -2891,10 +3000,10 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
+ .stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
.get_jcomp = sd_get_jcomp,
- .set_jcomp = sd_set_jcomp,
.querymenu = sd_querymenu,
#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
.int_pkt_scan = sd_int_pkt_scan,
@@ -3004,7 +3113,3 @@ static void __exit sd_mod_exit(void)
module_init(sd_mod_init);
module_exit(sd_mod_exit);
-
-module_param(starcam, int, 0644);
-MODULE_PARM_DESC(starcam,
- "StarCam model. 0: Clip, 1: 370i");
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-31 16:31:14 +0000