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Date: Fri, 18 Mar 2011 00:32:24 +0100
From: Patrice Chotard <patrice.chotard@....fr>
To: Jean-Francois Moine <moinejf@...e.fr>
CC: Theodore Kilgore <kilgota@...ach.math.auburn.edu>,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] New Jeilin dual-mode camera support
Le 17/03/2011 11:28, Jean-Francois Moine a écrit :
>
> On Wed, 16 Mar 2011 21:06:13 +0100
> Patrice Chotard <patrice.chotard@....fr> wrote:
>
>> This patch add a new jeilin dual mode camera support and some
>> specific controls settings.
>
> Hi Patrice and Theodore,
>
> Here are somme comments about Patrice's patch.
>
>> #include <linux/workqueue.h>
>> +#include <linux/delay.h>
>> #include <linux/slab.h>
>
> It is not a good idea to use mdelay(): it is a loop. Better use
> msleep().
>
>> - u8 quality; /* image quality */
>> - u8 jpegqual; /* webcam quality */
>> + u8 camquality; /* webcam quality */
>> + u8 jpegquality; /* jpeg quality */
>
> The webcam (encoding) quality and the jpeg (decoding) quality must be
> the same. Then, looking carefully, jpegquality is not used!
>
>> + u8 freq;
>> + u8 type;
>> + /* below variables are only used for SPORTSCAM_DV15 */
>> + u8 autogain;
>> + u8 cyan;
>> + u8 magenta;
>> + u8 yellow;
>
> You should use the new control mechanism (see stk014, sonixj, zc3xx...).
>
>> +#define V4L2_CID_CAMQUALITY (V4L2_CID_USER_BASE + 1)
>> + .id = V4L2_CID_CAMQUALITY,
>> + .type = V4L2_CTRL_TYPE_INTEGER,
>> + .name = "Image quality",
>
> The JPEG quality must be get/set by the VIDIOC_G_JPEGCOMP /
> VIDIOC_S_JPEGCOMP ioctl's.
>
>> +#define V4L2_CID_CYAN_BALANCE (V4L2_CID_USER_BASE + 2)
> [snip]
>> +#define V4L2_CID_MAGENTA_BALANCE (V4L2_CID_USER_BASE + 3)
> [snip]
>> +#define V4L2_CID_YELLOW_BALANCE (V4L2_CID_USER_BASE + 4)
>
> These values redefine V4L2_CID_SATURATION and V4L2_CID_HUE (user_base +
> 4 is no more defined). You should use V4L2_CID_RED_BALANCE,
> V4L2_CID_BLUE_BALANCE and V4L2_CID_GAIN to set these controls.
>
>> + if (sd->type == SPORTSCAM_DV15)
>> + start_commands_size = 9;
>> + else
>> + start_commands_size = ARRAY_SIZE(start_commands);
>
> Don't use magic values ('9').
>
>> + mdelay(start_commands[i].delay);
>
> See above.
>
> BTW, Theodore, as there is no USB command in the loop, there is no need
> to have a work queue (look at the SENSOR_OV772x in ov534).
>
> Best regards.
>
Hi,
Following Jean Francois's remark, here is a new version of my previous patch
for a new jeilin dual mode camera support with specific control settings.
Regards.
Signed-off-by: Patrice CHOTARD <patricechotard@...e.fr>
Signed-off-by: Theodore Kilgore <kilgota@...urn.edu>
---
Documentation/video4linux/gspca.txt | 1 +
drivers/media/video/gspca/jeilinj.c | 405 ++++++++++++++++++++++++++++++-----
2 files changed, 354 insertions(+), 52 deletions(-)
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt
index 261776e..c4245d2 100644
--- a/Documentation/video4linux/gspca.txt
+++ b/Documentation/video4linux/gspca.txt
@@ -265,6 +265,7 @@ pac7302 093a:2629 Genious iSlim 300
pac7302 093a:262a Webcam 300k
pac7302 093a:262c Philips SPC 230 NC
jeilinj 0979:0280 Sakar 57379
+jeilinj 0979:0270 Sportscam DV15
zc3xx 0ac8:0302 Z-star Vimicro zc0302
vc032x 0ac8:0321 Vimicro generic vc0321
vc032x 0ac8:0323 Vimicro Vc0323
diff --git a/drivers/media/video/gspca/jeilinj.c b/drivers/media/video/gspca/jeilinj.c
index 06b777f..b417589 100644
--- a/drivers/media/video/gspca/jeilinj.c
+++ b/drivers/media/video/gspca/jeilinj.c
@@ -6,6 +6,9 @@
*
* Copyright (C) 2009 Theodore Kilgore
*
+ * Sportscam DV15 support and control settings are
+ * Copyright (C) 2011 Patrice Chotard
+ *
* 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
@@ -34,6 +37,7 @@ MODULE_LICENSE("GPL");
/* Default timeouts, in ms */
#define JEILINJ_CMD_TIMEOUT 500
+#define JEILINJ_CMD_DELAY 160
#define JEILINJ_DATA_TIMEOUT 1000
/* Maximum transfer size to use. */
@@ -41,30 +45,40 @@ MODULE_LICENSE("GPL");
#define FRAME_HEADER_LEN 0x10
+enum {
+ SAKAR_57379,
+ SPORTSCAM_DV15,
+};
+
+#define CAMQUALITY_MIN 0 /* highest cam quality */
+#define CAMQUALITY_MAX 97 /* lowest cam quality */
+#define SPORTSCAM_DV15_CMD_SIZE 9
+
/* Structure to hold all of our device specific stuff */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
- const struct v4l2_pix_format *cap_mode;
/* Driver stuff */
struct work_struct work_struct;
struct workqueue_struct *work_thread;
- u8 quality; /* image quality */
- u8 jpegqual; /* webcam quality */
+ u8 quality;
+#define QUALITY_MIN 35
+#define QUALITY_MAX 85
+#define QUALITY_DEF 85
+
u8 jpeg_hdr[JPEG_HDR_SZ];
+ u8 freq;
+ u8 type;
+ /* below variables are only used for SPORTSCAM_DV15 */
+ u8 autogain;
+ u8 blue;
+ u8 green;
+ u8 red;
};
- struct jlj_command {
- unsigned char instruction[2];
- unsigned char ack_wanted;
- };
-
-/* AFAICT these cameras will only do 320x240. */
-static struct v4l2_pix_format jlj_mode[] = {
- { 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
- .bytesperline = 320,
- .sizeimage = 320 * 240,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .priv = 0}
+struct jlj_command {
+ unsigned char instruction[2];
+ unsigned char ack_wanted;
+ unsigned char delay;
};
/*
@@ -80,7 +94,7 @@ static int jlj_write2(struct gspca_dev *gspca_dev, unsigned char *command)
memcpy(gspca_dev->usb_buf, command, 2);
retval = usb_bulk_msg(gspca_dev->dev,
usb_sndbulkpipe(gspca_dev->dev, 3),
- gspca_dev->usb_buf, 2, NULL, 500);
+ gspca_dev->usb_buf, 2, NULL, JEILINJ_CMD_TIMEOUT);
if (retval < 0)
err("command write [%02x] error %d",
gspca_dev->usb_buf[0], retval);
@@ -94,7 +108,7 @@ static int jlj_read1(struct gspca_dev *gspca_dev, unsigned char response)
retval = usb_bulk_msg(gspca_dev->dev,
usb_rcvbulkpipe(gspca_dev->dev, 0x84),
- gspca_dev->usb_buf, 1, NULL, 500);
+ gspca_dev->usb_buf, 1, NULL, JEILINJ_CMD_TIMEOUT);
response = gspca_dev->usb_buf[0];
if (retval < 0)
err("read command [%02x] error %d",
@@ -102,49 +116,259 @@ static int jlj_read1(struct gspca_dev *gspca_dev, unsigned char response)
return retval;
}
+static void setfreq(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct jlj_command freq_commands[] = {
+ {{0x71, 0x80}, 0, 0},
+ {{0x70, 0x07}, 0, 0}
+ };
+
+ if (sd->freq)
+ freq_commands[0].instruction[1] & (sd->freq >> 1);
+
+ jlj_write2(gspca_dev, freq_commands[0].instruction);
+ jlj_write2(gspca_dev, freq_commands[1].instruction);
+}
+
+static void setcamquality(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct jlj_command quality_commands[] = {
+ {{0x71, 0x1E}, 0, 0},
+ {{0x70, 0x06}, 0, 0}
+ };
+ u8 camquality;
+
+ /* adapt camera quality from jpeg quality */
+ camquality = ((QUALITY_MAX - sd->quality) * CAMQUALITY_MAX)
+ / (QUALITY_MAX - QUALITY_MIN);
+ quality_commands[0].instruction[1] += camquality;
+
+ jlj_write2(gspca_dev, quality_commands[0].instruction);
+ jlj_write2(gspca_dev, quality_commands[1].instruction);
+}
+
+static void setautogain(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct jlj_command autogain_commands[] = {
+ {{0x94, 0x02}, 0, 0},
+ {{0xcf, 0x00}, 0, 0}
+ };
+
+ autogain_commands[1].instruction[1] = (sd->autogain << 4);
+
+ jlj_write2(gspca_dev, autogain_commands[0].instruction);
+ jlj_write2(gspca_dev, autogain_commands[1].instruction);
+}
+
+static void setred(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct jlj_command setred_commands[] = {
+ {{0x94, 0x02}, 0, 0},
+ {{0xe6, 0x00}, 0, 0}
+ };
+
+ setred_commands[1].instruction[1] = sd->red;
+
+ jlj_write2(gspca_dev, setred_commands[0].instruction);
+ jlj_write2(gspca_dev, setred_commands[1].instruction);
+}
+
+static void setgreen(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct jlj_command setgreen_commands[] = {
+ {{0x94, 0x02}, 0, 0},
+ {{0xe7, 0x00}, 0, 0}
+ };
+
+ setgreen_commands[1].instruction[1] = sd->green;
+
+ jlj_write2(gspca_dev, setgreen_commands[0].instruction);
+ jlj_write2(gspca_dev, setgreen_commands[1].instruction);
+}
+
+static void setblue(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct jlj_command setblue_commands[] = {
+ {{0x94, 0x02}, 0, 0},
+ {{0xe9, 0x00}, 0, 0}
+ };
+
+ setblue_commands[1].instruction[1] = sd->blue;
+
+ jlj_write2(gspca_dev, setblue_commands[0].instruction);
+ jlj_write2(gspca_dev, setblue_commands[1].instruction);
+}
+
+/* Functions to get and set a control value */
+#define SD_SETGET(thename) \
+static int sd_set##thename(struct gspca_dev *gspca_dev, s32 val)\
+{\
+ struct sd *sd = (struct sd *) gspca_dev;\
+\
+ sd->thename = val;\
+ if (gspca_dev->streaming)\
+ set##thename(gspca_dev);\
+ return 0;\
+} \
+static int sd_get##thename(struct gspca_dev *gspca_dev, s32 *val)\
+{\
+ struct sd *sd = (struct sd *) gspca_dev;\
+\
+ *val = sd->thename;\
+ return 0;\
+}
+
+SD_SETGET(freq);
+SD_SETGET(autogain);
+SD_SETGET(blue);
+SD_SETGET(green);
+SD_SETGET(red);
+
+static struct ctrl sd_ctrls[] = {
+ {
+ {
+ .id = V4L2_CID_POWER_LINE_FREQUENCY,
+ .type = V4L2_CTRL_TYPE_MENU,
+ .name = "Light frequency filter",
+ .minimum = V4L2_CID_POWER_LINE_FREQUENCY_DISABLED, /* 0 */
+ .maximum = V4L2_CID_POWER_LINE_FREQUENCY_60HZ, /* 2 */
+ .step = 1,
+ .default_value = V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
+ },
+ .set = sd_setfreq,
+ .get = sd_getfreq,
+ },
+ {
+ {
+ .id = V4L2_CID_AUTOGAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Automatic Gain (and Exposure)",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+#define AUTOGAIN_DEF 0
+ .default_value = AUTOGAIN_DEF,
+ },
+ .set = sd_setautogain,
+ .get = sd_getautogain,
+ },
+ {
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+#define BLUE_BALANCE_DEF 2
+ .default_value = BLUE_BALANCE_DEF,
+ },
+ .set = sd_setblue,
+ .get = sd_getblue,
+ },
+ {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "green balance",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+#define GREEN_BALANCE_DEF 2
+ .default_value = GREEN_BALANCE_DEF,
+ },
+ .set = sd_setgreen,
+ .get = sd_getgreen,
+ },
+ {
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+#define RED_BALANCE_DEF 2
+ .default_value = RED_BALANCE_DEF,
+ },
+ .set = sd_setred,
+ .get = sd_getred,
+ },
+};
+
+static struct v4l2_pix_format jlj_mode[] = {
+ { 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+ .bytesperline = 320,
+ .sizeimage = 320 * 240,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .priv = 0},
+ { 640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+ .bytesperline = 640,
+ .sizeimage = 640 * 480,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .priv = 0}
+};
+
static int jlj_start(struct gspca_dev *gspca_dev)
{
+ struct sd *sd = (struct sd *) gspca_dev;
int i;
int retval = -1;
+ int start_commands_size;
u8 response = 0xff;
struct jlj_command start_commands[] = {
- {{0x71, 0x81}, 0},
- {{0x70, 0x05}, 0},
- {{0x95, 0x70}, 1},
- {{0x71, 0x81}, 0},
- {{0x70, 0x04}, 0},
- {{0x95, 0x70}, 1},
- {{0x71, 0x00}, 0},
- {{0x70, 0x08}, 0},
- {{0x95, 0x70}, 1},
- {{0x94, 0x02}, 0},
- {{0xde, 0x24}, 0},
- {{0x94, 0x02}, 0},
- {{0xdd, 0xf0}, 0},
- {{0x94, 0x02}, 0},
- {{0xe3, 0x2c}, 0},
- {{0x94, 0x02}, 0},
- {{0xe4, 0x00}, 0},
- {{0x94, 0x02}, 0},
- {{0xe5, 0x00}, 0},
- {{0x94, 0x02}, 0},
- {{0xe6, 0x2c}, 0},
- {{0x94, 0x03}, 0},
- {{0xaa, 0x00}, 0},
- {{0x71, 0x1e}, 0},
- {{0x70, 0x06}, 0},
- {{0x71, 0x80}, 0},
- {{0x70, 0x07}, 0}
+ {{0x71, 0x81}, 0, 0},
+ {{0x70, 0x05}, 0, JEILINJ_CMD_DELAY},
+ {{0x95, 0x70}, 1, 0},
+ {{0x71, 0x81 - gspca_dev->curr_mode}, 0, 0},
+ {{0x70, 0x04}, 0, JEILINJ_CMD_DELAY},
+ {{0x95, 0x70}, 1, 0},
+ {{0x71, 0x00}, 0, 0}, /* start streaming ??*/
+ {{0x70, 0x08}, 0, JEILINJ_CMD_DELAY},
+ {{0x95, 0x70}, 1, 0},
+ {{0x94, 0x02}, 0, 0},
+ {{0xde, 0x24}, 0, 0},
+ {{0x94, 0x02}, 0, 0},
+ {{0xdd, 0xf0}, 0, 0},
+ {{0x94, 0x02}, 0, 0},
+ {{0xe3, 0x2c}, 0, 0},
+ {{0x94, 0x02}, 0, 0},
+ {{0xe4, 0x00}, 0, 0},
+ {{0x94, 0x02}, 0, 0},
+ {{0xe5, 0x00}, 0, 0},
+ {{0x94, 0x02}, 0, 0},
+ {{0xe6, 0x2c}, 0, 0},
+ {{0x94, 0x03}, 0, 0},
+ {{0xaa, 0x00}, 0, 0}
};
- for (i = 0; i < ARRAY_SIZE(start_commands); i++) {
+
+ /* Under Windows, USB spy shows that only the 9 first start
+ * commands are used for SPORTSCAM_DV15 webcam
+ */
+ if (sd->type == SPORTSCAM_DV15)
+ start_commands_size = SPORTSCAM_DV15_CMD_SIZE;
+ else
+ start_commands_size = ARRAY_SIZE(start_commands);
+
+ for (i = 0; i < start_commands_size; i++) {
retval = jlj_write2(gspca_dev, start_commands[i].instruction);
if (retval < 0)
return retval;
+ if (start_commands[i].delay)
+ msleep(start_commands[i].delay);
if (start_commands[i].ack_wanted)
retval = jlj_read1(gspca_dev, response);
if (retval < 0)
return retval;
}
+ setcamquality(gspca_dev);
+ setfreq(gspca_dev);
PDEBUG(D_ERR, "jlj_start retval is %d", retval);
return retval;
}
@@ -256,13 +480,17 @@ static int sd_config(struct gspca_dev *gspca_dev,
struct cam *cam = &gspca_dev->cam;
struct sd *dev = (struct sd *) gspca_dev;
- dev->quality = 85;
- dev->jpegqual = 85;
+ dev->type = id->driver_info;
+ dev->quality = QUALITY_DEF;
+ dev->freq = V4L2_CID_POWER_LINE_FREQUENCY_60HZ;
+ dev->red = RED_BALANCE_DEF;
+ dev->blue = BLUE_BALANCE_DEF;
+ dev->green = GREEN_BALANCE_DEF;
PDEBUG(D_PROBE,
"JEILINJ camera detected"
" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
cam->cam_mode = jlj_mode;
- cam->nmodes = 1;
+ cam->nmodes = ARRAY_SIZE(jlj_mode);
cam->bulk = 1;
/* We don't use the buffer gspca allocates so make it small. */
cam->bulk_size = 32;
@@ -300,7 +528,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(dev->jpeg_hdr, dev->quality);
- PDEBUG(D_STREAM, "Start streaming at 320x240");
+ PDEBUG(D_STREAM, "Start streaming at %dx%d",
+ gspca_dev->width, gspca_dev->height);
ret = jlj_start(gspca_dev);
if (ret < 0) {
PDEBUG(D_ERR, "Start streaming command failed");
@@ -315,14 +544,67 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* Table of supported USB devices */
static const struct usb_device_id device_table[] = {
- {USB_DEVICE(0x0979, 0x0280)},
+ {USB_DEVICE(0x0979, 0x0280), .driver_info = SAKAR_57379},
+ {USB_DEVICE(0x0979, 0x0270), .driver_info = SPORTSCAM_DV15},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
+static int sd_querymenu(struct gspca_dev *gspca_dev,
+ struct v4l2_querymenu *menu)
+{
+ switch (menu->id) {
+ case V4L2_CID_POWER_LINE_FREQUENCY:
+ switch (menu->index) {
+ case 0: /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
+ strcpy((char *) menu->name, "NoFliker");
+ return 0;
+ case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
+ strcpy((char *) menu->name, "50 Hz");
+ return 0;
+ case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
+ strcpy((char *) menu->name, "60 Hz");
+ return 0;
+ }
+ break;
+ }
+ return -EINVAL;
+}
+
+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);
+ setcamquality(gspca_dev);
+ }
+ 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 = {
+static const struct sd_desc sd_desc_sakar_57379 = {
.name = MODULE_NAME,
.config = sd_config,
.init = sd_init,
@@ -330,12 +612,31 @@ static const struct sd_desc sd_desc = {
.stop0 = sd_stop0,
};
+/* sub-driver description */
+static const struct sd_desc sd_desc_sportscam_dv15 = {
+ .name = MODULE_NAME,
+ .config = sd_config,
+ .init = sd_init,
+ .start = sd_start,
+ .stop0 = sd_stop0,
+ .ctrls = sd_ctrls,
+ .nctrls = ARRAY_SIZE(sd_ctrls),
+ .querymenu = sd_querymenu,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
+};
+
+static const struct sd_desc *sd_desc[2] = {
+ &sd_desc_sakar_57379,
+ &sd_desc_sportscam_dv15
+};
+
/* -- device connect -- */
static int sd_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
return gspca_dev_probe(intf, id,
- &sd_desc,
+ sd_desc[id->driver_info],
sizeof(struct sd),
THIS_MODULE);
}
--
1.7.0.4
--
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