diff options
Diffstat (limited to 'drivers/media/video/gspca/pac207.c')
| -rw-r--r-- | drivers/media/video/gspca/pac207.c | 469 |
1 files changed, 0 insertions, 469 deletions
diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c deleted file mode 100644 index d236d1791f78..000000000000 --- a/drivers/media/video/gspca/pac207.c +++ /dev/null @@ -1,469 +0,0 @@ -/* - * Pixart PAC207BCA library - * - * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com> - * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li - * Copyleft (C) 2005 Michel Xhaard mxhaard@magic.fr - * - * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> - * - * 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 - * (at your option) 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#define MODULE_NAME "pac207" - -#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"); -MODULE_LICENSE("GPL"); - -#define PAC207_CTRL_TIMEOUT 100 /* ms */ - -#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_REG 0x02 - -#define PAC207_GAIN_MIN 0 -#define PAC207_GAIN_MAX 31 -#define PAC207_GAIN_DEFAULT 7 /* power on default: 9 */ -#define PAC207_GAIN_REG 0x0e - -#define PAC207_AUTOGAIN_DEADZONE 30 - -/* specific webcam descriptor */ -struct sd { - struct gspca_dev gspca_dev; /* !! must be the first item */ - - struct v4l2_ctrl *brightness; - - u8 mode; - u8 sof_read; - u8 header_read; - u8 autogain_ignore_frames; - - atomic_t avg_lum; -}; - -static const struct v4l2_pix_format sif_mode[] = { - {176, 144, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE, - .bytesperline = 176, - .sizeimage = (176 + 2) * 144, - /* uncompressed, add 2 bytes / line for line header */ - .colorspace = V4L2_COLORSPACE_SRGB, - .priv = 1}, - {352, 288, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE, - .bytesperline = 352, - /* compressed, but only when needed (not compressed - when the framerate is low) */ - .sizeimage = (352 + 2) * 288, - .colorspace = V4L2_COLORSPACE_SRGB, - .priv = 0}, -}; - -static const __u8 pac207_sensor_init[][8] = { - {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0x84}, - {0x49, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30}, - {0x00, 0x00, 0x00, 0x70, 0xa0, 0xf8, 0x00, 0x00}, - {0x32, 0x00, 0x96, 0x00, 0xa2, 0x02, 0xaf, 0x00}, -}; - -static void pac207_write_regs(struct gspca_dev *gspca_dev, u16 index, - const u8 *buffer, u16 length) -{ - struct usb_device *udev = gspca_dev->dev; - int err; - - if (gspca_dev->usb_err < 0) - return; - - memcpy(gspca_dev->usb_buf, buffer, length); - - err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, - 0x00, index, - gspca_dev->usb_buf, length, PAC207_CTRL_TIMEOUT); - if (err < 0) { - pr_err("Failed to write registers to index 0x%04X, error %d\n", - index, err); - gspca_dev->usb_err = err; - } -} - -static void pac207_write_reg(struct gspca_dev *gspca_dev, u16 index, u16 value) -{ - struct usb_device *udev = gspca_dev->dev; - int err; - - if (gspca_dev->usb_err < 0) - return; - - err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, - value, index, NULL, 0, PAC207_CTRL_TIMEOUT); - if (err) { - pr_err("Failed to write a register (index 0x%04X, value 0x%02X, error %d)\n", - index, value, err); - gspca_dev->usb_err = err; - } -} - -static int pac207_read_reg(struct gspca_dev *gspca_dev, u16 index) -{ - struct usb_device *udev = gspca_dev->dev; - int res; - - if (gspca_dev->usb_err < 0) - return 0; - - res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, - 0x00, index, - gspca_dev->usb_buf, 1, PAC207_CTRL_TIMEOUT); - if (res < 0) { - pr_err("Failed to read a register (index 0x%04X, error %d)\n", - index, res); - gspca_dev->usb_err = res; - return 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 cam *cam; - u8 idreg[2]; - - idreg[0] = pac207_read_reg(gspca_dev, 0x0000); - idreg[1] = pac207_read_reg(gspca_dev, 0x0001); - idreg[0] = ((idreg[0] & 0x0f) << 4) | ((idreg[1] & 0xf0) >> 4); - idreg[1] = idreg[1] & 0x0f; - PDEBUG(D_PROBE, "Pixart Sensor ID 0x%02X Chips ID 0x%02X", - idreg[0], idreg[1]); - - if (idreg[0] != 0x27) { - PDEBUG(D_PROBE, "Error invalid sensor ID!"); - return -ENODEV; - } - - PDEBUG(D_PROBE, - "Pixart PAC207BCA Image Processor and Control Chip detected" - " (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct); - - cam = &gspca_dev->cam; - cam->cam_mode = sif_mode; - cam->nmodes = ARRAY_SIZE(sif_mode); - - return 0; -} - -/* this function is called at probe and resume time */ -static int sd_init(struct gspca_dev *gspca_dev) -{ - pac207_write_reg(gspca_dev, 0x41, 0x00); - /* Bit_0=Image Format, - * Bit_1=LED, - * Bit_2=Compression test mode enable */ - pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */ - - 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) -{ - struct sd *sd = (struct sd *) gspca_dev; - __u8 mode; - - pac207_write_reg(gspca_dev, 0x0f, 0x10); /* Power control (Bit 6-0) */ - pac207_write_regs(gspca_dev, 0x0002, pac207_sensor_init[0], 8); - pac207_write_regs(gspca_dev, 0x000a, pac207_sensor_init[1], 8); - pac207_write_regs(gspca_dev, 0x0012, pac207_sensor_init[2], 8); - pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[3], 8); - - /* Compression Balance */ - if (gspca_dev->width == 176) - pac207_write_reg(gspca_dev, 0x4a, 0xff); - else - pac207_write_reg(gspca_dev, 0x4a, 0x30); - pac207_write_reg(gspca_dev, 0x4b, 0x00); /* Sram test value */ - pac207_write_reg(gspca_dev, 0x08, v4l2_ctrl_g_ctrl(sd->brightness)); - - /* PGA global gain (Bit 4-0) */ - 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 */ - mode |= 0x01; - PDEBUG(D_STREAM, "pac207_start mode 176x144"); - } else { /* 352x288 */ - PDEBUG(D_STREAM, "pac207_start mode 352x288"); - } - pac207_write_reg(gspca_dev, 0x41, mode); - - pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */ - pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */ - msleep(10); - pac207_write_reg(gspca_dev, 0x40, 0x01); /* Start ISO pipe */ - - sd->sof_read = 0; - sd->autogain_ignore_frames = 0; - atomic_set(&sd->avg_lum, -1); - return gspca_dev->usb_err; -} - -static void sd_stopN(struct gspca_dev *gspca_dev) -{ - pac207_write_reg(gspca_dev, 0x40, 0x00); /* Stop ISO pipe */ - pac207_write_reg(gspca_dev, 0x41, 0x00); /* Turn of LED */ - pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */ -} - - -static void pac207_do_auto_gain(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - int avg_lum = atomic_read(&sd->avg_lum); - - if (avg_lum == -1) - return; - - if (sd->autogain_ignore_frames > 0) - sd->autogain_ignore_frames--; - else if (gspca_coarse_grained_expo_autogain(gspca_dev, avg_lum, - 90, PAC207_AUTOGAIN_DEADZONE)) - sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; -} - -static void sd_pkt_scan(struct gspca_dev *gspca_dev, - u8 *data, - int len) -{ - struct sd *sd = (struct sd *) gspca_dev; - unsigned char *sof; - - sof = pac_find_sof(&sd->sof_read, 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; - gspca_frame_add(gspca_dev, LAST_PACKET, - data, n); - sd->header_read = 0; - gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0); - len -= sof - data; - data = sof; - } - if (sd->header_read < 11) { - int needed; - - /* get average lumination from frame header (byte 5) */ - if (sd->header_read < 5) { - needed = 5 - sd->header_read; - if (len >= needed) - atomic_set(&sd->avg_lum, data[needed - 1]); - } - /* skip the rest of the header */ - needed = 11 - sd->header_read; - if (len <= needed) { - sd->header_read += len; - return; - } - data += needed; - len -= needed; - sd->header_read = 11; - } - - gspca_frame_add(gspca_dev, INTER_PACKET, data, len); -} - -#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) -static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, - u8 *data, /* interrupt packet data */ - int len) /* interrput packet length */ -{ - int ret = -EINVAL; - - if (len == 2 && data[0] == 0x5a && data[1] == 0x5a) { - input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); - input_sync(gspca_dev->input_dev); - input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); - input_sync(gspca_dev->input_dev); - ret = 0; - } - - return ret; -} -#endif - -/* sub-driver description */ -static const struct sd_desc sd_desc = { - .name = MODULE_NAME, - .config = sd_config, - .init = sd_init, - .init_controls = sd_init_controls, - .start = sd_start, - .stopN = sd_stopN, - .dq_callback = pac207_do_auto_gain, - .pkt_scan = sd_pkt_scan, -#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) - .int_pkt_scan = sd_int_pkt_scan, -#endif -}; - -/* -- module initialisation -- */ -static const struct usb_device_id device_table[] = { - {USB_DEVICE(0x041e, 0x4028)}, - {USB_DEVICE(0x093a, 0x2460)}, - {USB_DEVICE(0x093a, 0x2461)}, - {USB_DEVICE(0x093a, 0x2463)}, - {USB_DEVICE(0x093a, 0x2464)}, - {USB_DEVICE(0x093a, 0x2468)}, - {USB_DEVICE(0x093a, 0x2470)}, - {USB_DEVICE(0x093a, 0x2471)}, - {USB_DEVICE(0x093a, 0x2472)}, - {USB_DEVICE(0x093a, 0x2474)}, - {USB_DEVICE(0x093a, 0x2476)}, - {USB_DEVICE(0x145f, 0x013a)}, - {USB_DEVICE(0x2001, 0xf115)}, - {} -}; -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, - .reset_resume = gspca_resume, -#endif -}; - -module_usb_driver(sd_driver); |