| /* |
| * Mars MR97310A library |
| * |
| * Copyright (C) 2009 Kyle Guinn <elyk03@gmail.com> |
| * |
| * Support for the MR97310A cameras in addition to the Aiptek Pencam VGA+ |
| * and for the routines for detecting and classifying these various cameras, |
| * |
| * Copyright (C) 2009 Theodore Kilgore <kilgota@auburn.edu> |
| * |
| * Acknowledgements: |
| * |
| * The MR97311A support in gspca/mars.c has been helpful in understanding some |
| * of the registers in these cameras. |
| * |
| * Hans de Goede <hdgoede@redhat.com> and |
| * Thomas Kaiser <thomas@kaiser-linux.li> |
| * have assisted with their experience. Each of them has also helped by |
| * testing a previously unsupported camera. |
| * |
| * 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 |
| * 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 |
| */ |
| |
| #define MODULE_NAME "mr97310a" |
| |
| #include "gspca.h" |
| |
| #define CAM_TYPE_CIF 0 |
| #define CAM_TYPE_VGA 1 |
| |
| #define MR97310A_BRIGHTNESS_MIN -254 |
| #define MR97310A_BRIGHTNESS_MAX 255 |
| #define MR97310A_BRIGHTNESS_DEFAULT 0 |
| |
| #define MR97310A_EXPOSURE_MIN 300 |
| #define MR97310A_EXPOSURE_MAX 4095 |
| #define MR97310A_EXPOSURE_DEFAULT 1000 |
| |
| #define MR97310A_GAIN_MIN 0 |
| #define MR97310A_GAIN_MAX 31 |
| #define MR97310A_GAIN_DEFAULT 25 |
| |
| MODULE_AUTHOR("Kyle Guinn <elyk03@gmail.com>," |
| "Theodore Kilgore <kilgota@auburn.edu>"); |
| MODULE_DESCRIPTION("GSPCA/Mars-Semi MR97310A USB Camera Driver"); |
| MODULE_LICENSE("GPL"); |
| |
| /* global parameters */ |
| int force_sensor_type = -1; |
| module_param(force_sensor_type, int, 0644); |
| MODULE_PARM_DESC(force_sensor_type, "Force sensor type (-1 (auto), 0 or 1)"); |
| |
| /* specific webcam descriptor */ |
| struct sd { |
| struct gspca_dev gspca_dev; /* !! must be the first item */ |
| u8 sof_read; |
| u8 cam_type; /* 0 is CIF and 1 is VGA */ |
| u8 sensor_type; /* We use 0 and 1 here, too. */ |
| u8 do_lcd_stop; |
| |
| int brightness; |
| u16 exposure; |
| u8 gain; |
| }; |
| |
| struct sensor_w_data { |
| u8 reg; |
| u8 flags; |
| u8 data[16]; |
| int len; |
| }; |
| |
| 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_setgain(struct gspca_dev *gspca_dev, __s32 val); |
| static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val); |
| static void setbrightness(struct gspca_dev *gspca_dev); |
| static void setexposure(struct gspca_dev *gspca_dev); |
| static void setgain(struct gspca_dev *gspca_dev); |
| |
| /* V4L2 controls supported by the driver */ |
| static struct ctrl sd_ctrls[] = { |
| { |
| #define BRIGHTNESS_IDX 0 |
| { |
| .id = V4L2_CID_BRIGHTNESS, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Brightness", |
| .minimum = MR97310A_BRIGHTNESS_MIN, |
| .maximum = MR97310A_BRIGHTNESS_MAX, |
| .step = 1, |
| .default_value = MR97310A_BRIGHTNESS_DEFAULT, |
| .flags = 0, |
| }, |
| .set = sd_setbrightness, |
| .get = sd_getbrightness, |
| }, |
| { |
| #define EXPOSURE_IDX 1 |
| { |
| .id = V4L2_CID_EXPOSURE, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Exposure", |
| .minimum = MR97310A_EXPOSURE_MIN, |
| .maximum = MR97310A_EXPOSURE_MAX, |
| .step = 1, |
| .default_value = MR97310A_EXPOSURE_DEFAULT, |
| .flags = 0, |
| }, |
| .set = sd_setexposure, |
| .get = sd_getexposure, |
| }, |
| { |
| #define GAIN_IDX 2 |
| { |
| .id = V4L2_CID_GAIN, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Gain", |
| .minimum = MR97310A_GAIN_MIN, |
| .maximum = MR97310A_GAIN_MAX, |
| .step = 1, |
| .default_value = MR97310A_GAIN_DEFAULT, |
| .flags = 0, |
| }, |
| .set = sd_setgain, |
| .get = sd_getgain, |
| }, |
| }; |
| |
| static const struct v4l2_pix_format vga_mode[] = { |
| {160, 120, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE, |
| .bytesperline = 160, |
| .sizeimage = 160 * 120, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 4}, |
| {176, 144, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE, |
| .bytesperline = 176, |
| .sizeimage = 176 * 144, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 3}, |
| {320, 240, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE, |
| .bytesperline = 320, |
| .sizeimage = 320 * 240, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 2}, |
| {352, 288, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE, |
| .bytesperline = 352, |
| .sizeimage = 352 * 288, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 1}, |
| {640, 480, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE, |
| .bytesperline = 640, |
| .sizeimage = 640 * 480, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 0}, |
| }; |
| |
| /* the bytes to write are in gspca_dev->usb_buf */ |
| static int mr_write(struct gspca_dev *gspca_dev, int len) |
| { |
| int rc; |
| |
| rc = usb_bulk_msg(gspca_dev->dev, |
| usb_sndbulkpipe(gspca_dev->dev, 4), |
| gspca_dev->usb_buf, len, NULL, 500); |
| if (rc < 0) |
| PDEBUG(D_ERR, "reg write [%02x] error %d", |
| gspca_dev->usb_buf[0], rc); |
| return rc; |
| } |
| |
| /* the bytes are read into gspca_dev->usb_buf */ |
| static int mr_read(struct gspca_dev *gspca_dev, int len) |
| { |
| int rc; |
| |
| rc = usb_bulk_msg(gspca_dev->dev, |
| usb_rcvbulkpipe(gspca_dev->dev, 3), |
| gspca_dev->usb_buf, len, NULL, 500); |
| if (rc < 0) |
| PDEBUG(D_ERR, "reg read [%02x] error %d", |
| gspca_dev->usb_buf[0], rc); |
| return rc; |
| } |
| |
| static int sensor_write_reg(struct gspca_dev *gspca_dev, u8 reg, u8 flags, |
| const u8 *data, int len) |
| { |
| gspca_dev->usb_buf[0] = 0x1f; |
| gspca_dev->usb_buf[1] = flags; |
| gspca_dev->usb_buf[2] = reg; |
| memcpy(gspca_dev->usb_buf + 3, data, len); |
| |
| return mr_write(gspca_dev, len + 3); |
| } |
| |
| static int sensor_write_regs(struct gspca_dev *gspca_dev, |
| const struct sensor_w_data *data, int len) |
| { |
| int i, rc; |
| |
| for (i = 0; i < len; i++) { |
| rc = sensor_write_reg(gspca_dev, data[i].reg, data[i].flags, |
| data[i].data, data[i].len); |
| if (rc < 0) |
| return rc; |
| } |
| |
| return 0; |
| } |
| |
| static int sensor_write1(struct gspca_dev *gspca_dev, u8 reg, u8 data) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| u8 buf, confirm_reg; |
| int rc; |
| |
| buf = data; |
| rc = sensor_write_reg(gspca_dev, reg, 0x01, &buf, 1); |
| if (rc < 0) |
| return rc; |
| |
| buf = 0x01; |
| confirm_reg = sd->sensor_type ? 0x13 : 0x11; |
| rc = sensor_write_reg(gspca_dev, confirm_reg, 0x00, &buf, 1); |
| if (rc < 0) |
| return rc; |
| |
| return 0; |
| } |
| |
| static int cam_get_response16(struct gspca_dev *gspca_dev) |
| { |
| __u8 *data = gspca_dev->usb_buf; |
| int err_code; |
| |
| data[0] = 0x21; |
| err_code = mr_write(gspca_dev, 1); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = mr_read(gspca_dev, 16); |
| return err_code; |
| } |
| |
| static int zero_the_pointer(struct gspca_dev *gspca_dev) |
| { |
| __u8 *data = gspca_dev->usb_buf; |
| int err_code; |
| u8 status = 0; |
| int tries = 0; |
| |
| err_code = cam_get_response16(gspca_dev); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = mr_write(gspca_dev, 1); |
| data[0] = 0x19; |
| data[1] = 0x51; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = cam_get_response16(gspca_dev); |
| if (err_code < 0) |
| return err_code; |
| |
| data[0] = 0x19; |
| data[1] = 0xba; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = cam_get_response16(gspca_dev); |
| if (err_code < 0) |
| return err_code; |
| |
| data[0] = 0x19; |
| data[1] = 0x00; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = cam_get_response16(gspca_dev); |
| if (err_code < 0) |
| return err_code; |
| |
| data[0] = 0x19; |
| data[1] = 0x00; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| while (status != 0x0a && tries < 256) { |
| err_code = cam_get_response16(gspca_dev); |
| status = data[0]; |
| tries++; |
| if (err_code < 0) |
| return err_code; |
| } |
| if (status != 0x0a) |
| PDEBUG(D_ERR, "status is %02x", status); |
| |
| tries = 0; |
| while (tries < 4) { |
| data[0] = 0x19; |
| data[1] = 0x00; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = cam_get_response16(gspca_dev); |
| status = data[0]; |
| tries++; |
| if (err_code < 0) |
| return err_code; |
| } |
| |
| data[0] = 0x19; |
| err_code = mr_write(gspca_dev, 1); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = mr_read(gspca_dev, 16); |
| if (err_code < 0) |
| return err_code; |
| |
| return 0; |
| } |
| |
| static u8 get_sensor_id(struct gspca_dev *gspca_dev) |
| { |
| int err_code; |
| |
| gspca_dev->usb_buf[0] = 0x1e; |
| err_code = mr_write(gspca_dev, 1); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = mr_read(gspca_dev, 16); |
| if (err_code < 0) |
| return err_code; |
| |
| PDEBUG(D_PROBE, "Byte zero reported is %01x", gspca_dev->usb_buf[0]); |
| |
| return gspca_dev->usb_buf[0]; |
| } |
| |
| /* this function is called at probe time */ |
| 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 *data = gspca_dev->usb_buf; |
| int err_code; |
| |
| cam = &gspca_dev->cam; |
| cam->cam_mode = vga_mode; |
| cam->nmodes = ARRAY_SIZE(vga_mode); |
| |
| if (id->idProduct == 0x010e) { |
| sd->cam_type = CAM_TYPE_CIF; |
| cam->nmodes--; |
| |
| data[0] = 0x01; |
| data[1] = 0x01; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| msleep(200); |
| data[0] = get_sensor_id(gspca_dev); |
| /* |
| * Known CIF cameras. If you have another to report, please do |
| * |
| * Name byte just read sd->sensor_type |
| * reported by |
| * Sakar Spy-shot 0x28 T. Kilgore 0 |
| * Innovage 0xf5 (unstable) T. Kilgore 0 |
| * Vivitar Mini 0x53 H. De Goede 0 |
| * Vivitar Mini 0x04 / 0x24 E. Rodriguez 0 |
| * Vivitar Mini 0x08 T. Kilgore 1 |
| * Elta-Media 8212dc 0x23 T. Kaiser 1 |
| * Philips dig. keych. 0x37 T. Kilgore 1 |
| */ |
| if ((data[0] & 0x78) == 8 || |
| ((data[0] & 0x2) == 0x2 && data[0] != 0x53)) |
| sd->sensor_type = 1; |
| else |
| sd->sensor_type = 0; |
| |
| PDEBUG(D_PROBE, "MR97310A CIF camera detected, sensor: %d", |
| sd->sensor_type); |
| |
| if (force_sensor_type != -1) { |
| sd->sensor_type = !! force_sensor_type; |
| PDEBUG(D_PROBE, "Forcing sensor type to: %d", |
| sd->sensor_type); |
| } |
| |
| if (sd->sensor_type == 0) |
| gspca_dev->ctrl_dis = (1 << BRIGHTNESS_IDX); |
| } else { |
| sd->cam_type = CAM_TYPE_VGA; |
| PDEBUG(D_PROBE, "MR97310A VGA camera detected"); |
| gspca_dev->ctrl_dis = (1 << BRIGHTNESS_IDX) | |
| (1 << EXPOSURE_IDX) | (1 << GAIN_IDX); |
| } |
| |
| sd->brightness = MR97310A_BRIGHTNESS_DEFAULT; |
| sd->exposure = MR97310A_EXPOSURE_DEFAULT; |
| sd->gain = MR97310A_GAIN_DEFAULT; |
| |
| return 0; |
| } |
| |
| /* this function is called at probe and resume time */ |
| static int sd_init(struct gspca_dev *gspca_dev) |
| { |
| return 0; |
| } |
| |
| static int start_cif_cam(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| __u8 *data = gspca_dev->usb_buf; |
| int err_code; |
| const __u8 startup_string[] = { |
| 0x00, |
| 0x0d, |
| 0x01, |
| 0x00, /* Hsize/8 for 352 or 320 */ |
| 0x00, /* Vsize/4 for 288 or 240 */ |
| 0x13, /* or 0xbb, depends on sensor */ |
| 0x00, /* Hstart, depends on res. */ |
| 0x00, /* reserved ? */ |
| 0x00, /* Vstart, depends on res. and sensor */ |
| 0x50, /* 0x54 to get 176 or 160 */ |
| 0xc0 |
| }; |
| |
| /* Note: Some of the above descriptions guessed from MR97113A driver */ |
| data[0] = 0x01; |
| data[1] = 0x01; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| memcpy(data, startup_string, 11); |
| if (sd->sensor_type) |
| data[5] = 0xbb; |
| |
| switch (gspca_dev->width) { |
| case 160: |
| data[9] |= 0x04; /* reg 8, 2:1 scale down from 320 */ |
| /* fall thru */ |
| case 320: |
| default: |
| data[3] = 0x28; /* reg 2, H size/8 */ |
| data[4] = 0x3c; /* reg 3, V size/4 */ |
| data[6] = 0x14; /* reg 5, H start */ |
| data[8] = 0x1a + sd->sensor_type; /* reg 7, V start */ |
| break; |
| case 176: |
| data[9] |= 0x04; /* reg 8, 2:1 scale down from 352 */ |
| /* fall thru */ |
| case 352: |
| data[3] = 0x2c; /* reg 2, H size/8 */ |
| data[4] = 0x48; /* reg 3, V size/4 */ |
| data[6] = 0x06; /* reg 5, H start */ |
| data[8] = 0x06 - sd->sensor_type; /* reg 7, V start */ |
| break; |
| } |
| err_code = mr_write(gspca_dev, 11); |
| if (err_code < 0) |
| return err_code; |
| |
| if (!sd->sensor_type) { |
| const struct sensor_w_data cif_sensor0_init_data[] = { |
| {0x02, 0x00, {0x03, 0x5a, 0xb5, 0x01, |
| 0x0f, 0x14, 0x0f, 0x10}, 8}, |
| {0x0c, 0x00, {0x04, 0x01, 0x01, 0x00, 0x1f}, 5}, |
| {0x12, 0x00, {0x07}, 1}, |
| {0x1f, 0x00, {0x06}, 1}, |
| {0x27, 0x00, {0x04}, 1}, |
| {0x29, 0x00, {0x0c}, 1}, |
| {0x40, 0x00, {0x40, 0x00, 0x04}, 3}, |
| {0x50, 0x00, {0x60}, 1}, |
| {0x60, 0x00, {0x06}, 1}, |
| {0x6b, 0x00, {0x85, 0x85, 0xc8, 0xc8, 0xc8, 0xc8}, 6}, |
| {0x72, 0x00, {0x1e, 0x56}, 2}, |
| {0x75, 0x00, {0x58, 0x40, 0xa2, 0x02, 0x31, 0x02, |
| 0x31, 0x80, 0x00}, 9}, |
| {0x11, 0x00, {0x01}, 1}, |
| {0, 0, {0}, 0} |
| }; |
| err_code = sensor_write_regs(gspca_dev, cif_sensor0_init_data, |
| ARRAY_SIZE(cif_sensor0_init_data)); |
| } else { /* sd->sensor_type = 1 */ |
| const struct sensor_w_data cif_sensor1_init_data[] = { |
| /* Reg 3,4, 7,8 get set by the controls */ |
| {0x02, 0x00, {0x10}, 1}, |
| {0x05, 0x01, {0x22}, 1}, /* 5/6 also seen as 65h/32h */ |
| {0x06, 0x01, {0x00}, 1}, |
| {0x09, 0x02, {0x0e}, 1}, |
| {0x0a, 0x02, {0x05}, 1}, |
| {0x0b, 0x02, {0x05}, 1}, |
| {0x0c, 0x02, {0x0f}, 1}, |
| {0x0d, 0x02, {0x07}, 1}, |
| {0x0e, 0x02, {0x0c}, 1}, |
| {0x0f, 0x00, {0x00}, 1}, |
| {0x10, 0x00, {0x06}, 1}, |
| {0x11, 0x00, {0x07}, 1}, |
| {0x12, 0x00, {0x00}, 1}, |
| {0x13, 0x00, {0x01}, 1}, |
| {0, 0, {0}, 0} |
| }; |
| /* Without this command the cam won't work with USB-UHCI */ |
| gspca_dev->usb_buf[0] = 0x0a; |
| gspca_dev->usb_buf[1] = 0x00; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| err_code = sensor_write_regs(gspca_dev, cif_sensor1_init_data, |
| ARRAY_SIZE(cif_sensor1_init_data)); |
| } |
| if (err_code < 0) |
| return err_code; |
| |
| setbrightness(gspca_dev); |
| setexposure(gspca_dev); |
| setgain(gspca_dev); |
| |
| msleep(200); |
| |
| data[0] = 0x00; |
| data[1] = 0x4d; /* ISOC transfering enable... */ |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| return 0; |
| } |
| |
| static int start_vga_cam(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| __u8 *data = gspca_dev->usb_buf; |
| int err_code; |
| const __u8 startup_string[] = {0x00, 0x0d, 0x01, 0x00, 0x00, 0x2b, |
| 0x00, 0x00, 0x00, 0x50, 0xc0}; |
| |
| /* What some of these mean is explained in start_cif_cam(), above */ |
| sd->sof_read = 0; |
| |
| /* |
| * We have to know which camera we have, because the register writes |
| * depend upon the camera. This test, run before we actually enter |
| * the initialization routine, distinguishes most of the cameras, If |
| * needed, another routine is done later, too. |
| */ |
| memset(data, 0, 16); |
| data[0] = 0x20; |
| err_code = mr_write(gspca_dev, 1); |
| if (err_code < 0) |
| return err_code; |
| |
| err_code = mr_read(gspca_dev, 16); |
| if (err_code < 0) |
| return err_code; |
| |
| PDEBUG(D_PROBE, "Byte reported is %02x", data[0]); |
| |
| msleep(200); |
| /* |
| * Known VGA cameras. If you have another to report, please do |
| * |
| * Name byte just read sd->sensor_type |
| * sd->do_lcd_stop |
| * Aiptek Pencam VGA+ 0x31 0 1 |
| * ION digital 0x31 0 1 |
| * Argus DC-1620 0x30 1 0 |
| * Argus QuickClix 0x30 1 1 (not caught here) |
| */ |
| sd->sensor_type = data[0] & 1; |
| sd->do_lcd_stop = (~data[0]) & 1; |
| |
| |
| |
| /* Streaming setup begins here. */ |
| |
| |
| data[0] = 0x01; |
| data[1] = 0x01; |
| err_code = mr_write(gspca_dev, 2); |
| if (err_code < 0) |
| return err_code; |
| |
| /* |
| * A second test can now resolve any remaining ambiguity in the |
| * identification of the camera type, |
| */ |
| if (!sd->sensor_type) { |
| data[0] = get_sensor_id(gspca_dev); |
| if (data[0] == 0x7f) { |
| sd->sensor_type = 1; |
| PDEBUG(D_PROBE, "sensor_type corrected to 1"); |
| } |
| msleep(200); |
| } |
| |
| if (force_sensor_type != -1) { |
| sd->sensor_type = !! force_sensor_type; |
| PDEBUG(D_PROBE, "Forcing sensor type to: %d", |
| sd->sensor_type); |
| } |
| |
| /* |
| * Known VGA cameras. |
| * This test is only run if the previous test returned 0x30, but |
| * here is the information for all others, too, just for reference. |
| * |
| * Name byte just read sd->sensor_type |
| * |
| * Aiptek Pencam VGA+ 0xfb (this test not run) 1 |
| * ION digital 0xbd (this test not run) 1 |
| * Argus DC-1620 0xe5 (no change) 0 |
| * Argus QuickClix 0x7f (reclassified) 1 |
| */ |
| memcpy(data, startup_string, 11); |
| if (!sd->sensor_type) { |
| data[5] = 0x00; |
| data[10] = 0x91; |
| } |
| |
| switch (gspca_dev->width) { |
| case 160: |
| data[9] |= 0x0c; /* reg 8, 4:1 scale down */ |
| /* fall thru */ |
| case 320: |
| data[9] |= 0x04; /* reg 8, 2:1 scale down */ |
| /* fall thru */ |
| case 640: |
| default: |
| data[3] = 0x50; /* reg 2, H size/8 */ |
| data[4] = 0x78; /* reg 3, V size/4 */ |
| data[6] = 0x04; /* reg 5, H start */ |
| data[8] = 0x03; /* reg 7, V start */ |
| if (sd->do_lcd_stop) |
| data[8] = 0x04; /* Bayer tile shifted */ |
| break; |
| |
| case 176: |
| data[9] |= 0x04; /* reg 8, 2:1 scale down */ |
| /* fall thru */ |
| case 352: |
| data[3] = 0x2c; /* reg 2, H size */ |
| data[4] = 0x48; /* reg 3, V size */ |
| data[6] = 0x94; /* reg 5, H start */ |
| data[8] = 0x63; /* reg 7, V start */ |
| if (sd->do_lcd_stop) |
| data[8] = 0x64; /* Bayer tile shifted */ |
| break; |
| } |
| |
| err_code = mr_write(gspca_dev, 11); |
| if (err_code < 0) |
| return err_code; |
| |
| if (!sd->sensor_type) { |
| /* The only known sensor_type 0 cam is the Argus DC-1620 */ |
| const struct sensor_w_data vga_sensor0_init_data[] = { |
| {0x01, 0x00, {0x0c, 0x00, 0x04}, 3}, |
| {0x14, 0x00, {0x01, 0xe4, 0x02, 0x84}, 4}, |
| {0x20, 0x00, {0x00, 0x80, 0x00, 0x08}, 4}, |
| {0x25, 0x00, {0x03, 0xa9, 0x80}, 3}, |
| {0x30, 0x00, {0x30, 0x18, 0x10, 0x18}, 4}, |
| {0, 0, {0}, 0} |
| }; |
| err_code = sensor_write_regs(gspca_dev, vga_sensor0_init_data, |
| ARRAY_SIZE(vga_sensor0_init_data)); |
| } else { /* sd->sensor_type = 1 */ |
| const struct sensor_w_data vga_sensor1_init_data[] = { |
| {0x02, 0x00, {0x06, 0x59, 0x0c, 0x16, 0x00, |
| 0x07, 0x00, 0x01}, 8}, |
| {0x11, 0x04, {0x01}, 1}, |
| /*{0x0a, 0x00, {0x00, 0x01, 0x00, 0x00, 0x01, */ |
| {0x0a, 0x00, {0x01, 0x06, 0x00, 0x00, 0x01, |
| 0x00, 0x0a}, 7}, |
| {0x11, 0x04, {0x01}, 1}, |
| {0x12, 0x00, {0x00, 0x63, 0x00, 0x70, 0x00, 0x00}, 6}, |
| {0x11, 0x04, {0x01}, 1}, |
| {0, 0, {0}, 0} |
| }; |
| err_code = sensor_write_regs(gspca_dev, vga_sensor1_init_data, |
| ARRAY_SIZE(vga_sensor1_init_data)); |
| } |
| if (err_code < 0) |
| return err_code; |
| |
| msleep(200); |
| data[0] = 0x00; |
| data[1] = 0x4d; /* ISOC transfering enable... */ |
| err_code = mr_write(gspca_dev, 2); |
| |
| return err_code; |
| } |
| |
| static int sd_start(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| int err_code; |
| struct cam *cam; |
| |
| cam = &gspca_dev->cam; |
| sd->sof_read = 0; |
| /* |
| * Some of the supported cameras require the memory pointer to be |
| * set to 0, or else they will not stream. |
| */ |
| zero_the_pointer(gspca_dev); |
| msleep(200); |
| if (sd->cam_type == CAM_TYPE_CIF) { |
| err_code = start_cif_cam(gspca_dev); |
| } else { |
| err_code = start_vga_cam(gspca_dev); |
| } |
| return err_code; |
| } |
| |
| static void sd_stopN(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| int result; |
| |
| gspca_dev->usb_buf[0] = 1; |
| gspca_dev->usb_buf[1] = 0; |
| result = mr_write(gspca_dev, 2); |
| if (result < 0) |
| PDEBUG(D_ERR, "Camera Stop failed"); |
| |
| /* Not all the cams need this, but even if not, probably a good idea */ |
| zero_the_pointer(gspca_dev); |
| if (sd->do_lcd_stop) { |
| gspca_dev->usb_buf[0] = 0x19; |
| gspca_dev->usb_buf[1] = 0x54; |
| result = mr_write(gspca_dev, 2); |
| if (result < 0) |
| PDEBUG(D_ERR, "Camera Stop failed"); |
| } |
| } |
| |
| static void setbrightness(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| u8 val; |
| |
| if (gspca_dev->ctrl_dis & (1 << BRIGHTNESS_IDX)) |
| return; |
| |
| /* Note register 7 is also seen as 0x8x or 0xCx in dumps */ |
| if (sd->brightness > 0) { |
| sensor_write1(gspca_dev, 7, 0x00); |
| val = sd->brightness; |
| } else { |
| sensor_write1(gspca_dev, 7, 0x01); |
| val = 257 - sd->brightness; |
| } |
| sensor_write1(gspca_dev, 8, val); |
| } |
| |
| static void setexposure(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| u8 val; |
| |
| if (gspca_dev->ctrl_dis & (1 << EXPOSURE_IDX)) |
| return; |
| |
| if (sd->sensor_type) { |
| val = sd->exposure >> 4; |
| sensor_write1(gspca_dev, 3, val); |
| val = sd->exposure & 0xf; |
| sensor_write1(gspca_dev, 4, val); |
| } else { |
| u8 clockdiv; |
| int exposure; |
| |
| /* We have both a clock divider and an exposure register. |
| We first calculate the clock divider, as that determines |
| the maximum exposure and then we calculayte the exposure |
| register setting (which goes from 0 - 511). |
| |
| Note our 0 - 4095 exposure is mapped to 0 - 511 |
| milliseconds exposure time */ |
| clockdiv = (60 * sd->exposure + 7999) / 8000; |
| |
| /* Limit framerate to not exceed usb bandwidth */ |
| if (clockdiv < 3 && gspca_dev->width >= 320) |
| clockdiv = 3; |
| else if (clockdiv < 2) |
| clockdiv = 2; |
| |
| /* Frame exposure time in ms = 1000 * clockdiv / 60 -> |
| exposure = (sd->exposure / 8) * 511 / (1000 * clockdiv / 60) */ |
| exposure = (60 * 511 * sd->exposure) / (8000 * clockdiv); |
| if (exposure > 511) |
| exposure = 511; |
| |
| /* exposure register value is reversed! */ |
| exposure = 511 - exposure; |
| |
| sensor_write1(gspca_dev, 0x02, clockdiv); |
| sensor_write1(gspca_dev, 0x0e, exposure & 0xff); |
| sensor_write1(gspca_dev, 0x0f, exposure >> 8); |
| } |
| } |
| |
| static void setgain(struct gspca_dev *gspca_dev) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| if (gspca_dev->ctrl_dis & (1 << GAIN_IDX)) |
| return; |
| |
| if (sd->sensor_type) { |
| sensor_write1(gspca_dev, 0x0e, sd->gain); |
| } else { |
| sensor_write1(gspca_dev, 0x10, sd->gain); |
| } |
| } |
| |
| 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; |
| } |
| |
| /* Include pac common sof detection functions */ |
| #include "pac_common.h" |
| |
| static void sd_pkt_scan(struct gspca_dev *gspca_dev, |
| struct gspca_frame *frame, /* target */ |
| __u8 *data, /* isoc packet */ |
| int len) /* iso packet length */ |
| { |
| unsigned char *sof; |
| |
| sof = pac_find_sof(gspca_dev, data, len); |
| if (sof) { |
| int n; |
| |
| /* finish decoding current frame */ |
| n = sof - data; |
| if (n > sizeof pac_sof_marker) |
| n -= sizeof pac_sof_marker; |
| else |
| n = 0; |
| frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, |
| data, n); |
| /* Start next frame. */ |
| gspca_frame_add(gspca_dev, FIRST_PACKET, frame, |
| pac_sof_marker, sizeof pac_sof_marker); |
| len -= sof - data; |
| data = sof; |
| } |
| gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); |
| } |
| |
| /* 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, |
| .start = sd_start, |
| .stopN = sd_stopN, |
| .pkt_scan = sd_pkt_scan, |
| }; |
| |
| /* -- module initialisation -- */ |
| static const __devinitdata struct usb_device_id device_table[] = { |
| {USB_DEVICE(0x08ca, 0x0111)}, /* Aiptek Pencam VGA+ */ |
| {USB_DEVICE(0x093a, 0x010f)}, /* All other known MR97310A VGA cams */ |
| {USB_DEVICE(0x093a, 0x010e)}, /* All known MR97310A CIF cams */ |
| {} |
| }; |
| MODULE_DEVICE_TABLE(usb, device_table); |
| |
| /* -- device connect -- */ |
| static int sd_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), |
| THIS_MODULE); |
| } |
| |
| static struct usb_driver sd_driver = { |
| .name = MODULE_NAME, |
| .id_table = device_table, |
| .probe = sd_probe, |
| .disconnect = gspca_disconnect, |
| #ifdef CONFIG_PM |
| .suspend = gspca_suspend, |
| .resume = gspca_resume, |
| #endif |
| }; |
| |
| /* -- module insert / remove -- */ |
| static int __init sd_mod_init(void) |
| { |
| int ret; |
| |
| ret = usb_register(&sd_driver); |
| if (ret < 0) |
| return ret; |
| PDEBUG(D_PROBE, "registered"); |
| return 0; |
| } |
| static void __exit sd_mod_exit(void) |
| { |
| usb_deregister(&sd_driver); |
| PDEBUG(D_PROBE, "deregistered"); |
| } |
| |
| module_init(sd_mod_init); |
| module_exit(sd_mod_exit); |
