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Diffstat (limited to 'drivers/media/usb/gspca/spca561.c')
-rw-r--r--drivers/media/usb/gspca/spca561.c932
1 files changed, 932 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/spca561.c b/drivers/media/usb/gspca/spca561.c
new file mode 100644
index 0000000..403d71c
--- /dev/null
+++ b/drivers/media/usb/gspca/spca561.c
@@ -0,0 +1,932 @@
+/*
+ * Sunplus spca561 subdriver
+ *
+ * Copyright (C) 2004 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
+ * 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 "spca561"
+
+#include <linux/input.h>
+#include "gspca.h"
+
+MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
+MODULE_DESCRIPTION("GSPCA/SPCA561 USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+#define EXPOSURE_MAX (2047 + 325)
+
+/* specific webcam descriptor */
+struct sd {
+ struct gspca_dev gspca_dev; /* !! must be the first item */
+
+ struct { /* hue/contrast control cluster */
+ struct v4l2_ctrl *contrast;
+ struct v4l2_ctrl *hue;
+ };
+ struct v4l2_ctrl *autogain;
+
+#define EXPO12A_DEF 3
+ __u8 expo12a; /* expo/gain? for rev 12a */
+
+ __u8 chip_revision;
+#define Rev012A 0
+#define Rev072A 1
+
+ signed char ag_cnt;
+#define AG_CNT_START 13
+};
+
+static const struct v4l2_pix_format sif_012a_mode[] = {
+ {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
+ .bytesperline = 160,
+ .sizeimage = 160 * 120,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 3},
+ {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
+ .bytesperline = 176,
+ .sizeimage = 176 * 144,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 2},
+ {320, 240, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE,
+ .bytesperline = 320,
+ .sizeimage = 320 * 240 * 4 / 8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 1},
+ {352, 288, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE,
+ .bytesperline = 352,
+ .sizeimage = 352 * 288 * 4 / 8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0},
+};
+
+static const struct v4l2_pix_format sif_072a_mode[] = {
+ {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
+ .bytesperline = 160,
+ .sizeimage = 160 * 120,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 3},
+ {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
+ .bytesperline = 176,
+ .sizeimage = 176 * 144,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 2},
+ {320, 240, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
+ .bytesperline = 320,
+ .sizeimage = 320 * 240,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 1},
+ {352, 288, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
+ .bytesperline = 352,
+ .sizeimage = 352 * 288,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0},
+};
+
+/*
+ * Initialization data
+ * I'm not very sure how to split initialization from open data
+ * chunks. For now, we'll consider everything as initialization
+ */
+/* Frame packet header offsets for the spca561 */
+#define SPCA561_OFFSET_SNAP 1
+#define SPCA561_OFFSET_TYPE 2
+#define SPCA561_OFFSET_COMPRESS 3
+#define SPCA561_OFFSET_FRAMSEQ 4
+#define SPCA561_OFFSET_GPIO 5
+#define SPCA561_OFFSET_USBBUFF 6
+#define SPCA561_OFFSET_WIN2GRAVE 7
+#define SPCA561_OFFSET_WIN2RAVE 8
+#define SPCA561_OFFSET_WIN2BAVE 9
+#define SPCA561_OFFSET_WIN2GBAVE 10
+#define SPCA561_OFFSET_WIN1GRAVE 11
+#define SPCA561_OFFSET_WIN1RAVE 12
+#define SPCA561_OFFSET_WIN1BAVE 13
+#define SPCA561_OFFSET_WIN1GBAVE 14
+#define SPCA561_OFFSET_FREQ 15
+#define SPCA561_OFFSET_VSYNC 16
+#define SPCA561_INDEX_I2C_BASE 0x8800
+#define SPCA561_SNAPBIT 0x20
+#define SPCA561_SNAPCTRL 0x40
+
+static const u16 rev72a_reset[][2] = {
+ {0x0000, 0x8114}, /* Software GPIO output data */
+ {0x0001, 0x8114}, /* Software GPIO output data */
+ {0x0000, 0x8112}, /* Some kind of reset */
+ {}
+};
+static const __u16 rev72a_init_data1[][2] = {
+ {0x0003, 0x8701}, /* PCLK clock delay adjustment */
+ {0x0001, 0x8703}, /* HSYNC from cmos inverted */
+ {0x0011, 0x8118}, /* Enable and conf sensor */
+ {0x0001, 0x8118}, /* Conf sensor */
+ {0x0092, 0x8804}, /* I know nothing about these */
+ {0x0010, 0x8802}, /* 0x88xx registers, so I won't */
+ {}
+};
+static const u16 rev72a_init_sensor1[][2] = {
+ {0x0001, 0x000d},
+ {0x0002, 0x0018},
+ {0x0004, 0x0165},
+ {0x0005, 0x0021},
+ {0x0007, 0x00aa},
+ {0x0020, 0x1504},
+ {0x0039, 0x0002},
+ {0x0035, 0x0010},
+ {0x0009, 0x1049},
+ {0x0028, 0x000b},
+ {0x003b, 0x000f},
+ {0x003c, 0x0000},
+ {}
+};
+static const __u16 rev72a_init_data2[][2] = {
+ {0x0018, 0x8601}, /* Pixel/line selection for color separation */
+ {0x0000, 0x8602}, /* Optical black level for user setting */
+ {0x0060, 0x8604}, /* Optical black horizontal offset */
+ {0x0002, 0x8605}, /* Optical black vertical offset */
+ {0x0000, 0x8603}, /* Non-automatic optical black level */
+ {0x0002, 0x865b}, /* Horizontal offset for valid pixels */
+ {0x0000, 0x865f}, /* Vertical valid pixels window (x2) */
+ {0x00b0, 0x865d}, /* Horizontal valid pixels window (x2) */
+ {0x0090, 0x865e}, /* Vertical valid lines window (x2) */
+ {0x00e0, 0x8406}, /* Memory buffer threshold */
+ {0x0000, 0x8660}, /* Compensation memory stuff */
+ {0x0002, 0x8201}, /* Output address for r/w serial EEPROM */
+ {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */
+ {0x0001, 0x8200}, /* OprMode to be executed by hardware */
+/* from ms-win */
+ {0x0000, 0x8611}, /* R offset for white balance */
+ {0x00fd, 0x8612}, /* Gr offset for white balance */
+ {0x0003, 0x8613}, /* B offset for white balance */
+ {0x0000, 0x8614}, /* Gb offset for white balance */
+/* from ms-win */
+ {0x0035, 0x8651}, /* R gain for white balance */
+ {0x0040, 0x8652}, /* Gr gain for white balance */
+ {0x005f, 0x8653}, /* B gain for white balance */
+ {0x0040, 0x8654}, /* Gb gain for white balance */
+ {0x0002, 0x8502}, /* Maximum average bit rate stuff */
+ {0x0011, 0x8802},
+
+ {0x0087, 0x8700}, /* Set master clock (96Mhz????) */
+ {0x0081, 0x8702}, /* Master clock output enable */
+
+ {0x0000, 0x8500}, /* Set image type (352x288 no compression) */
+ /* Originally was 0x0010 (352x288 compression) */
+
+ {0x0002, 0x865b}, /* Horizontal offset for valid pixels */
+ {0x0003, 0x865c}, /* Vertical offset for valid lines */
+ {}
+};
+static const u16 rev72a_init_sensor2[][2] = {
+ {0x0003, 0x0121},
+ {0x0004, 0x0165},
+ {0x0005, 0x002f}, /* blanking control column */
+ {0x0006, 0x0000}, /* blanking mode row*/
+ {0x000a, 0x0002},
+ {0x0009, 0x1061}, /* setexposure times && pixel clock
+ * 0001 0 | 000 0110 0001 */
+ {0x0035, 0x0014},
+ {}
+};
+
+/******************** QC Express etch2 stuff ********************/
+static const __u16 Pb100_1map8300[][2] = {
+ /* reg, value */
+ {0x8320, 0x3304},
+
+ {0x8303, 0x0125}, /* image area */
+ {0x8304, 0x0169},
+ {0x8328, 0x000b},
+ {0x833c, 0x0001}, /*fixme: win:07*/
+
+ {0x832f, 0x1904}, /*fixme: was 0419*/
+ {0x8307, 0x00aa},
+ {0x8301, 0x0003},
+ {0x8302, 0x000e},
+ {}
+};
+static const __u16 Pb100_2map8300[][2] = {
+ /* reg, value */
+ {0x8339, 0x0000},
+ {0x8307, 0x00aa},
+ {}
+};
+
+static const __u16 spca561_161rev12A_data1[][2] = {
+ {0x29, 0x8118}, /* Control register (various enable bits) */
+ {0x08, 0x8114}, /* GPIO: Led off */
+ {0x0e, 0x8112}, /* 0x0e stream off 0x3e stream on */
+ {0x00, 0x8102}, /* white balance - new */
+ {0x92, 0x8804},
+ {0x04, 0x8802}, /* windows uses 08 */
+ {}
+};
+static const __u16 spca561_161rev12A_data2[][2] = {
+ {0x21, 0x8118},
+ {0x10, 0x8500},
+ {0x07, 0x8601},
+ {0x07, 0x8602},
+ {0x04, 0x8501},
+
+ {0x07, 0x8201}, /* windows uses 02 */
+ {0x08, 0x8200},
+ {0x01, 0x8200},
+
+ {0x90, 0x8604},
+ {0x00, 0x8605},
+ {0xb0, 0x8603},
+
+ /* sensor gains */
+ {0x07, 0x8601}, /* white balance - new */
+ {0x07, 0x8602}, /* white balance - new */
+ {0x00, 0x8610}, /* *red */
+ {0x00, 0x8611}, /* 3f *green */
+ {0x00, 0x8612}, /* green *blue */
+ {0x00, 0x8613}, /* blue *green */
+ {0x43, 0x8614}, /* green *red - white balance - was 0x35 */
+ {0x40, 0x8615}, /* 40 *green - white balance - was 0x35 */
+ {0x71, 0x8616}, /* 7a *blue - white balance - was 0x35 */
+ {0x40, 0x8617}, /* 40 *green - white balance - was 0x35 */
+
+ {0x0c, 0x8620}, /* 0c */
+ {0xc8, 0x8631}, /* c8 */
+ {0xc8, 0x8634}, /* c8 */
+ {0x23, 0x8635}, /* 23 */
+ {0x1f, 0x8636}, /* 1f */
+ {0xdd, 0x8637}, /* dd */
+ {0xe1, 0x8638}, /* e1 */
+ {0x1d, 0x8639}, /* 1d */
+ {0x21, 0x863a}, /* 21 */
+ {0xe3, 0x863b}, /* e3 */
+ {0xdf, 0x863c}, /* df */
+ {0xf0, 0x8505},
+ {0x32, 0x850a},
+/* {0x99, 0x8700}, * - white balance - new (removed) */
+ /* HDG we used to do this in stop0, making the init state and the state
+ after a start / stop different, so do this here instead. */
+ {0x29, 0x8118},
+ {}
+};
+
+static void reg_w_val(struct gspca_dev *gspca_dev, __u16 index, __u8 value)
+{
+ int ret;
+ struct usb_device *dev = gspca_dev->dev;
+
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0, /* request */
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, NULL, 0, 500);
+ PDEBUG(D_USBO, "reg write: 0x%02x:0x%02x", index, value);
+ if (ret < 0)
+ pr_err("reg write: error %d\n", ret);
+}
+
+static void write_vector(struct gspca_dev *gspca_dev,
+ const __u16 data[][2])
+{
+ int i;
+
+ i = 0;
+ while (data[i][1] != 0) {
+ reg_w_val(gspca_dev, data[i][1], data[i][0]);
+ i++;
+ }
+}
+
+/* read 'len' bytes to gspca_dev->usb_buf */
+static void reg_r(struct gspca_dev *gspca_dev,
+ __u16 index, __u16 length)
+{
+ usb_control_msg(gspca_dev->dev,
+ usb_rcvctrlpipe(gspca_dev->dev, 0),
+ 0, /* request */
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, /* value */
+ index, gspca_dev->usb_buf, length, 500);
+}
+
+/* write 'len' bytes from gspca_dev->usb_buf */
+static void reg_w_buf(struct gspca_dev *gspca_dev,
+ __u16 index, __u16 len)
+{
+ usb_control_msg(gspca_dev->dev,
+ usb_sndctrlpipe(gspca_dev->dev, 0),
+ 0, /* request */
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, /* value */
+ index, gspca_dev->usb_buf, len, 500);
+}
+
+static void i2c_write(struct gspca_dev *gspca_dev, __u16 value, __u16 reg)
+{
+ int retry = 60;
+
+ reg_w_val(gspca_dev, 0x8801, reg);
+ reg_w_val(gspca_dev, 0x8805, value);
+ reg_w_val(gspca_dev, 0x8800, value >> 8);
+ do {
+ reg_r(gspca_dev, 0x8803, 1);
+ if (!gspca_dev->usb_buf[0])
+ return;
+ msleep(10);
+ } while (--retry);
+}
+
+static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode)
+{
+ int retry = 60;
+ __u8 value;
+
+ reg_w_val(gspca_dev, 0x8804, 0x92);
+ reg_w_val(gspca_dev, 0x8801, reg);
+ reg_w_val(gspca_dev, 0x8802, mode | 0x01);
+ do {
+ reg_r(gspca_dev, 0x8803, 1);
+ if (!gspca_dev->usb_buf[0]) {
+ reg_r(gspca_dev, 0x8800, 1);
+ value = gspca_dev->usb_buf[0];
+ reg_r(gspca_dev, 0x8805, 1);
+ return ((int) value << 8) | gspca_dev->usb_buf[0];
+ }
+ msleep(10);
+ } while (--retry);
+ return -1;
+}
+
+static void sensor_mapwrite(struct gspca_dev *gspca_dev,
+ const __u16 (*sensormap)[2])
+{
+ while ((*sensormap)[0]) {
+ gspca_dev->usb_buf[0] = (*sensormap)[1];
+ gspca_dev->usb_buf[1] = (*sensormap)[1] >> 8;
+ reg_w_buf(gspca_dev, (*sensormap)[0], 2);
+ sensormap++;
+ }
+}
+
+static void write_sensor_72a(struct gspca_dev *gspca_dev,
+ const __u16 (*sensor)[2])
+{
+ while ((*sensor)[0]) {
+ i2c_write(gspca_dev, (*sensor)[1], (*sensor)[0]);
+ sensor++;
+ }
+}
+
+static void init_161rev12A(struct gspca_dev *gspca_dev)
+{
+ write_vector(gspca_dev, spca561_161rev12A_data1);
+ sensor_mapwrite(gspca_dev, Pb100_1map8300);
+/*fixme: should be in sd_start*/
+ write_vector(gspca_dev, spca561_161rev12A_data2);
+ sensor_mapwrite(gspca_dev, Pb100_2map8300);
+}
+
+/* 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;
+ __u16 vendor, product;
+ __u8 data1, data2;
+
+ /* Read frm global register the USB product and vendor IDs, just to
+ * prove that we can communicate with the device. This works, which
+ * confirms at we are communicating properly and that the device
+ * is a 561. */
+ reg_r(gspca_dev, 0x8104, 1);
+ data1 = gspca_dev->usb_buf[0];
+ reg_r(gspca_dev, 0x8105, 1);
+ data2 = gspca_dev->usb_buf[0];
+ vendor = (data2 << 8) | data1;
+ reg_r(gspca_dev, 0x8106, 1);
+ data1 = gspca_dev->usb_buf[0];
+ reg_r(gspca_dev, 0x8107, 1);
+ data2 = gspca_dev->usb_buf[0];
+ product = (data2 << 8) | data1;
+ if (vendor != id->idVendor || product != id->idProduct) {
+ PDEBUG(D_PROBE, "Bad vendor / product from device");
+ return -EINVAL;
+ }
+
+ cam = &gspca_dev->cam;
+ cam->needs_full_bandwidth = 1;
+
+ sd->chip_revision = id->driver_info;
+ if (sd->chip_revision == Rev012A) {
+ cam->cam_mode = sif_012a_mode;
+ cam->nmodes = ARRAY_SIZE(sif_012a_mode);
+ } else {
+ cam->cam_mode = sif_072a_mode;
+ cam->nmodes = ARRAY_SIZE(sif_072a_mode);
+ }
+ sd->expo12a = EXPO12A_DEF;
+ return 0;
+}
+
+/* this function is called at probe and resume time */
+static int sd_init_12a(struct gspca_dev *gspca_dev)
+{
+ PDEBUG(D_STREAM, "Chip revision: 012a");
+ init_161rev12A(gspca_dev);
+ return 0;
+}
+static int sd_init_72a(struct gspca_dev *gspca_dev)
+{
+ PDEBUG(D_STREAM, "Chip revision: 072a");
+ write_vector(gspca_dev, rev72a_reset);
+ msleep(200);
+ write_vector(gspca_dev, rev72a_init_data1);
+ write_sensor_72a(gspca_dev, rev72a_init_sensor1);
+ write_vector(gspca_dev, rev72a_init_data2);
+ write_sensor_72a(gspca_dev, rev72a_init_sensor2);
+ reg_w_val(gspca_dev, 0x8112, 0x30);
+ return 0;
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ __u16 reg;
+
+ if (sd->chip_revision == Rev012A)
+ reg = 0x8610;
+ else
+ reg = 0x8611;
+
+ reg_w_val(gspca_dev, reg + 0, val); /* R */
+ reg_w_val(gspca_dev, reg + 1, val); /* Gr */
+ reg_w_val(gspca_dev, reg + 2, val); /* B */
+ reg_w_val(gspca_dev, reg + 3, val); /* Gb */
+}
+
+static void setwhite(struct gspca_dev *gspca_dev, s32 white, s32 contrast)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ __u8 blue, red;
+ __u16 reg;
+
+ /* try to emulate MS-win as possible */
+ red = 0x20 + white * 3 / 8;
+ blue = 0x90 - white * 5 / 8;
+ if (sd->chip_revision == Rev012A) {
+ reg = 0x8614;
+ } else {
+ reg = 0x8651;
+ red += contrast - 0x20;
+ blue += contrast - 0x20;
+ reg_w_val(gspca_dev, 0x8652, contrast + 0x20); /* Gr */
+ reg_w_val(gspca_dev, 0x8654, contrast + 0x20); /* Gb */
+ }
+ reg_w_val(gspca_dev, reg, red);
+ reg_w_val(gspca_dev, reg + 2, blue);
+}
+
+/* rev 12a only */
+static void setexposure(struct gspca_dev *gspca_dev, s32 val)
+{
+ int i, expo = 0;
+
+ /* Register 0x8309 controls exposure for the spca561,
+ the basic exposure setting goes from 1-2047, where 1 is completely
+ dark and 2047 is very bright. It not only influences exposure but
+ also the framerate (to allow for longer exposure) from 1 - 300 it
+ only raises the exposure time then from 300 - 600 it halves the
+ framerate to be able to further raise the exposure time and for every
+ 300 more it halves the framerate again. This allows for a maximum
+ exposure time of circa 0.2 - 0.25 seconds (30 / (2000/3000) fps).
+ Sometimes this is not enough, the 1-2047 uses bits 0-10, bits 11-12
+ configure a divider for the base framerate which us used at the
+ exposure setting of 1-300. These bits configure the base framerate
+ according to the following formula: fps = 60 / (value + 2) */
+
+ /* We choose to use the high bits setting the fixed framerate divisor
+ asap, as setting high basic exposure setting without the fixed
+ divider in combination with high gains makes the cam stop */
+ int table[] = { 0, 450, 550, 625, EXPOSURE_MAX };
+
+ for (i = 0; i < ARRAY_SIZE(table) - 1; i++) {
+ if (val <= table[i + 1]) {
+ expo = val - table[i];
+ if (i)
+ expo += 300;
+ expo |= i << 11;
+ break;
+ }
+ }
+
+ gspca_dev->usb_buf[0] = expo;
+ gspca_dev->usb_buf[1] = expo >> 8;
+ reg_w_buf(gspca_dev, 0x8309, 2);
+}
+
+/* rev 12a only */
+static void setgain(struct gspca_dev *gspca_dev, s32 val)
+{
+ /* gain reg low 6 bits 0-63 gain, bit 6 and 7, both double the
+ sensitivity when set, so 31 + one of them set == 63, and 15
+ with both of them set == 63 */
+ if (val < 64)
+ gspca_dev->usb_buf[0] = val;
+ else if (val < 128)
+ gspca_dev->usb_buf[0] = (val / 2) | 0x40;
+ else
+ gspca_dev->usb_buf[0] = (val / 4) | 0xc0;
+
+ gspca_dev->usb_buf[1] = 0;
+ reg_w_buf(gspca_dev, 0x8335, 2);
+}
+
+static void setautogain(struct gspca_dev *gspca_dev, s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (val)
+ sd->ag_cnt = AG_CNT_START;
+ else
+ sd->ag_cnt = -1;
+}
+
+static int sd_start_12a(struct gspca_dev *gspca_dev)
+{
+ int mode;
+ static const __u8 Reg8391[8] =
+ {0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00};
+
+ mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
+ if (mode <= 1) {
+ /* Use compression on 320x240 and above */
+ reg_w_val(gspca_dev, 0x8500, 0x10 | mode);
+ } else {
+ /* I couldn't get the compression to work below 320x240
+ * Fortunately at these resolutions the bandwidth
+ * is sufficient to push raw frames at ~20fps */
+ reg_w_val(gspca_dev, 0x8500, mode);
+ } /* -- qq@kuku.eu.org */
+
+ gspca_dev->usb_buf[0] = 0xaa;
+ gspca_dev->usb_buf[1] = 0x00;
+ reg_w_buf(gspca_dev, 0x8307, 2);
+ /* clock - lower 0x8X values lead to fps > 30 */
+ reg_w_val(gspca_dev, 0x8700, 0x8a);
+ /* 0x8f 0x85 0x27 clock */
+ reg_w_val(gspca_dev, 0x8112, 0x1e | 0x20);
+ reg_w_val(gspca_dev, 0x850b, 0x03);
+ memcpy(gspca_dev->usb_buf, Reg8391, 8);
+ reg_w_buf(gspca_dev, 0x8391, 8);
+ reg_w_buf(gspca_dev, 0x8390, 8);
+
+ /* Led ON (bit 3 -> 0 */
+ reg_w_val(gspca_dev, 0x8114, 0x00);
+ return 0;
+}
+static int sd_start_72a(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int Clck;
+ int mode;
+
+ write_vector(gspca_dev, rev72a_reset);
+ msleep(200);
+ write_vector(gspca_dev, rev72a_init_data1);
+ write_sensor_72a(gspca_dev, rev72a_init_sensor1);
+
+ mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
+ switch (mode) {
+ default:
+ case 0:
+ Clck = 0x27; /* ms-win 0x87 */
+ break;
+ case 1:
+ Clck = 0x25;
+ break;
+ case 2:
+ Clck = 0x22;
+ break;
+ case 3:
+ Clck = 0x21;
+ break;
+ }
+ reg_w_val(gspca_dev, 0x8700, Clck); /* 0x27 clock */
+ reg_w_val(gspca_dev, 0x8702, 0x81);
+ reg_w_val(gspca_dev, 0x8500, mode); /* mode */
+ write_sensor_72a(gspca_dev, rev72a_init_sensor2);
+ setwhite(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue),
+ v4l2_ctrl_g_ctrl(sd->contrast));
+/* setbrightness(gspca_dev); * fixme: bad values */
+ setautogain(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
+ reg_w_val(gspca_dev, 0x8112, 0x10 | 0x20);
+ return 0;
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (sd->chip_revision == Rev012A) {
+ reg_w_val(gspca_dev, 0x8112, 0x0e);
+ /* Led Off (bit 3 -> 1 */
+ reg_w_val(gspca_dev, 0x8114, 0x08);
+ } else {
+ reg_w_val(gspca_dev, 0x8112, 0x20);
+/* reg_w_val(gspca_dev, 0x8102, 0x00); ?? */
+ }
+}
+
+static void do_autogain(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int expotimes;
+ int pixelclk;
+ int gainG;
+ __u8 R, Gr, Gb, B;
+ int y;
+ __u8 luma_mean = 110;
+ __u8 luma_delta = 20;
+ __u8 spring = 4;
+
+ if (sd->ag_cnt < 0)
+ return;
+ if (--sd->ag_cnt >= 0)
+ return;
+ sd->ag_cnt = AG_CNT_START;
+
+ switch (sd->chip_revision) {
+ case Rev072A:
+ reg_r(gspca_dev, 0x8621, 1);
+ Gr = gspca_dev->usb_buf[0];
+ reg_r(gspca_dev, 0x8622, 1);
+ R = gspca_dev->usb_buf[0];
+ reg_r(gspca_dev, 0x8623, 1);
+ B = gspca_dev->usb_buf[0];
+ reg_r(gspca_dev, 0x8624, 1);
+ Gb = gspca_dev->usb_buf[0];
+ y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8;
+ /* u= (128*B-(43*(Gr+Gb+R))) >> 8; */
+ /* v= (128*R-(53*(Gr+Gb))-21*B) >> 8; */
+ /* PDEBUG(D_CONF,"reading Y %d U %d V %d ",y,u,v); */
+
+ if (y < luma_mean - luma_delta ||
+ y > luma_mean + luma_delta) {
+ expotimes = i2c_read(gspca_dev, 0x09, 0x10);
+ pixelclk = 0x0800;
+ expotimes = expotimes & 0x07ff;
+ /* PDEBUG(D_PACK,
+ "Exposition Times 0x%03X Clock 0x%04X ",
+ expotimes,pixelclk); */
+ gainG = i2c_read(gspca_dev, 0x35, 0x10);
+ /* PDEBUG(D_PACK,
+ "reading Gain register %d", gainG); */
+
+ expotimes += (luma_mean - y) >> spring;
+ gainG += (luma_mean - y) / 50;
+ /* PDEBUG(D_PACK,
+ "compute expotimes %d gain %d",
+ expotimes,gainG); */
+
+ if (gainG > 0x3f)
+ gainG = 0x3f;
+ else if (gainG < 3)
+ gainG = 3;
+ i2c_write(gspca_dev, gainG, 0x35);
+
+ if (expotimes > 0x0256)
+ expotimes = 0x0256;
+ else if (expotimes < 3)
+ expotimes = 3;
+ i2c_write(gspca_dev, expotimes | pixelclk, 0x09);
+ }
+ break;
+ }
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+ u8 *data, /* isoc packet */
+ int len) /* iso packet length */
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ len--;
+ switch (*data++) { /* sequence number */
+ case 0: /* start of frame */
+ gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
+
+ /* This should never happen */
+ if (len < 2) {
+ PERR("Short SOF packet, ignoring");
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ return;
+ }
+
+#if IS_ENABLED(CONFIG_INPUT)
+ if (data[0] & 0x20) {
+ 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);
+ }
+#endif
+
+ if (data[1] & 0x10) {
+ /* compressed bayer */
+ gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
+ } else {
+ /* raw bayer (with a header, which we skip) */
+ if (sd->chip_revision == Rev012A) {
+ data += 20;
+ len -= 20;
+ } else {
+ data += 16;
+ len -= 16;
+ }
+ gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
+ }
+ return;
+ case 0xff: /* drop (empty mpackets) */
+ return;
+ }
+ gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
+}
+
+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 (!gspca_dev->streaming)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ setbrightness(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_CONTRAST:
+ /* hue/contrast control cluster for 72a */
+ setwhite(gspca_dev, sd->hue->val, ctrl->val);
+ break;
+ case V4L2_CID_HUE:
+ /* just plain hue control for 12a */
+ setwhite(gspca_dev, ctrl->val, 0);
+ break;
+ case V4L2_CID_EXPOSURE:
+ setexposure(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_GAIN:
+ setgain(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_AUTOGAIN:
+ setautogain(gspca_dev, ctrl->val);
+ break;
+ }
+ return gspca_dev->usb_err;
+}
+
+static const struct v4l2_ctrl_ops sd_ctrl_ops = {
+ .s_ctrl = sd_s_ctrl,
+};
+
+static int sd_init_controls_12a(struct gspca_dev *gspca_dev)
+{
+ struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
+
+ gspca_dev->vdev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(hdl, 3);
+ v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_HUE, 1, 0x7f, 1, 0x40);
+ v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
+ v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, EXPOSURE_MAX, 1, 700);
+ v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_GAIN, 0, 255, 1, 63);
+
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+ return 0;
+}
+
+static int sd_init_controls_72a(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->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x20);
+ sd->hue = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_HUE, 1, 0x7f, 1, 0x40);
+ v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, 0, 0x3f, 1, 0x20);
+ sd->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+ v4l2_ctrl_cluster(2, &sd->contrast);
+ return 0;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc_12a = {
+ .name = MODULE_NAME,
+ .init_controls = sd_init_controls_12a,
+ .config = sd_config,
+ .init = sd_init_12a,
+ .start = sd_start_12a,
+ .stopN = sd_stopN,
+ .pkt_scan = sd_pkt_scan,
+#if IS_ENABLED(CONFIG_INPUT)
+ .other_input = 1,
+#endif
+};
+static const struct sd_desc sd_desc_72a = {
+ .name = MODULE_NAME,
+ .init_controls = sd_init_controls_72a,
+ .config = sd_config,
+ .init = sd_init_72a,
+ .start = sd_start_72a,
+ .stopN = sd_stopN,
+ .pkt_scan = sd_pkt_scan,
+ .dq_callback = do_autogain,
+#if IS_ENABLED(CONFIG_INPUT)
+ .other_input = 1,
+#endif
+};
+static const struct sd_desc *sd_desc[2] = {
+ &sd_desc_12a,
+ &sd_desc_72a
+};
+
+/* -- module initialisation -- */
+static const struct usb_device_id device_table[] = {
+ {USB_DEVICE(0x041e, 0x401a), .driver_info = Rev072A},
+ {USB_DEVICE(0x041e, 0x403b), .driver_info = Rev012A},
+ {USB_DEVICE(0x0458, 0x7004), .driver_info = Rev072A},
+ {USB_DEVICE(0x0461, 0x0815), .driver_info = Rev072A},
+ {USB_DEVICE(0x046d, 0x0928), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x0929), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x092a), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x092b), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x092c), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x092d), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x092e), .driver_info = Rev012A},
+ {USB_DEVICE(0x046d, 0x092f), .driver_info = Rev012A},
+ {USB_DEVICE(0x04fc, 0x0561), .driver_info = Rev072A},
+ {USB_DEVICE(0x060b, 0xa001), .driver_info = Rev072A},
+ {USB_DEVICE(0x10fd, 0x7e50), .driver_info = Rev072A},
+ {USB_DEVICE(0xabcd, 0xcdee), .driver_info = Rev072A},
+ {}
+};
+
+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[id->driver_info],
+ 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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 05:23:38 +0000