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path: root/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
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Diffstat (limited to 'drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c')
-rw-r--r--drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c540
1 files changed, 0 insertions, 540 deletions
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
deleted file mode 100644
index 06fa54c5efb2..000000000000
--- a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
+++ /dev/null
@@ -1,540 +0,0 @@
-/*
- * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
- * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
- * Copyright (c) 2002, 2003 Tuukka Toivonen
- * Copyright (c) 2008 Erik Andrén
- * Copyright (c) 2008 Chia-I Wu
- *
- * 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
- *
- * P/N 861037: Sensor HDCS1000 ASIC STV0600
- * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
- * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
- * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
- * P/N 861075-0040: Sensor HDCS1000 ASIC
- * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
- * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "stv06xx_hdcs.h"
-
-static struct v4l2_pix_format hdcs1x00_mode[] = {
- {
- HDCS_1X00_DEF_WIDTH,
- HDCS_1X00_DEF_HEIGHT,
- V4L2_PIX_FMT_SGRBG8,
- V4L2_FIELD_NONE,
- .sizeimage =
- HDCS_1X00_DEF_WIDTH * HDCS_1X00_DEF_HEIGHT,
- .bytesperline = HDCS_1X00_DEF_WIDTH,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .priv = 1
- }
-};
-
-static struct v4l2_pix_format hdcs1020_mode[] = {
- {
- HDCS_1020_DEF_WIDTH,
- HDCS_1020_DEF_HEIGHT,
- V4L2_PIX_FMT_SGRBG8,
- V4L2_FIELD_NONE,
- .sizeimage =
- HDCS_1020_DEF_WIDTH * HDCS_1020_DEF_HEIGHT,
- .bytesperline = HDCS_1020_DEF_WIDTH,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .priv = 1
- }
-};
-
-enum hdcs_power_state {
- HDCS_STATE_SLEEP,
- HDCS_STATE_IDLE,
- HDCS_STATE_RUN
-};
-
-/* no lock? */
-struct hdcs {
- enum hdcs_power_state state;
- int w, h;
-
- /* visible area of the sensor array */
- struct {
- int left, top;
- int width, height;
- int border;
- } array;
-
- struct {
- /* Column timing overhead */
- u8 cto;
- /* Column processing overhead */
- u8 cpo;
- /* Row sample period constant */
- u16 rs;
- /* Exposure reset duration */
- u16 er;
- } exp;
-
- int psmp;
-};
-
-static int hdcs_reg_write_seq(struct sd *sd, u8 reg, u8 *vals, u8 len)
-{
- u8 regs[I2C_MAX_BYTES * 2];
- int i;
-
- if (unlikely((len <= 0) || (len >= I2C_MAX_BYTES) ||
- (reg + len > 0xff)))
- return -EINVAL;
-
- for (i = 0; i < len; i++) {
- regs[2 * i] = reg;
- regs[2 * i + 1] = vals[i];
- /* All addresses are shifted left one bit
- * as bit 0 toggles r/w */
- reg += 2;
- }
-
- return stv06xx_write_sensor_bytes(sd, regs, len);
-}
-
-static int hdcs_set_state(struct sd *sd, enum hdcs_power_state state)
-{
- struct hdcs *hdcs = sd->sensor_priv;
- u8 val;
- int ret;
-
- if (hdcs->state == state)
- return 0;
-
- /* we need to go idle before running or sleeping */
- if (hdcs->state != HDCS_STATE_IDLE) {
- ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 0);
- if (ret)
- return ret;
- }
-
- hdcs->state = HDCS_STATE_IDLE;
-
- if (state == HDCS_STATE_IDLE)
- return 0;
-
- switch (state) {
- case HDCS_STATE_SLEEP:
- val = HDCS_SLEEP_MODE;
- break;
-
- case HDCS_STATE_RUN:
- val = HDCS_RUN_ENABLE;
- break;
-
- default:
- return -EINVAL;
- }
-
- ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), val);
-
- /* Update the state if the write succeeded */
- if (!ret)
- hdcs->state = state;
-
- return ret;
-}
-
-static int hdcs_reset(struct sd *sd)
-{
- struct hdcs *hdcs = sd->sensor_priv;
- int err;
-
- err = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 1);
- if (err < 0)
- return err;
-
- err = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 0);
- if (err < 0)
- hdcs->state = HDCS_STATE_IDLE;
-
- return err;
-}
-
-static int hdcs_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- struct hdcs *hdcs = sd->sensor_priv;
- int rowexp, srowexp;
- int max_srowexp;
- /* Column time period */
- int ct;
- /* Column processing period */
- int cp;
- /* Row processing period */
- int rp;
- /* Minimum number of column timing periods
- within the column processing period */
- int mnct;
- int cycles, err;
- u8 exp[14];
-
- cycles = val * HDCS_CLK_FREQ_MHZ * 257;
-
- ct = hdcs->exp.cto + hdcs->psmp + (HDCS_ADC_START_SIG_DUR + 2);
- cp = hdcs->exp.cto + (hdcs->w * ct / 2);
-
- /* the cycles one row takes */
- rp = hdcs->exp.rs + cp;
-
- rowexp = cycles / rp;
-
- /* the remaining cycles */
- cycles -= rowexp * rp;
-
- /* calculate sub-row exposure */
- if (IS_1020(sd)) {
- /* see HDCS-1020 datasheet 3.5.6.4, p. 63 */
- srowexp = hdcs->w - (cycles + hdcs->exp.er + 13) / ct;
-
- mnct = (hdcs->exp.er + 12 + ct - 1) / ct;
- max_srowexp = hdcs->w - mnct;
- } else {
- /* see HDCS-1000 datasheet 3.4.5.5, p. 61 */
- srowexp = cp - hdcs->exp.er - 6 - cycles;
-
- mnct = (hdcs->exp.er + 5 + ct - 1) / ct;
- max_srowexp = cp - mnct * ct - 1;
- }
-
- if (srowexp < 0)
- srowexp = 0;
- else if (srowexp > max_srowexp)
- srowexp = max_srowexp;
-
- if (IS_1020(sd)) {
- exp[0] = HDCS20_CONTROL;
- exp[1] = 0x00; /* Stop streaming */
- exp[2] = HDCS_ROWEXPL;
- exp[3] = rowexp & 0xff;
- exp[4] = HDCS_ROWEXPH;
- exp[5] = rowexp >> 8;
- exp[6] = HDCS20_SROWEXP;
- exp[7] = (srowexp >> 2) & 0xff;
- exp[8] = HDCS20_ERROR;
- exp[9] = 0x10; /* Clear exposure error flag*/
- exp[10] = HDCS20_CONTROL;
- exp[11] = 0x04; /* Restart streaming */
- err = stv06xx_write_sensor_bytes(sd, exp, 6);
- } else {
- exp[0] = HDCS00_CONTROL;
- exp[1] = 0x00; /* Stop streaming */
- exp[2] = HDCS_ROWEXPL;
- exp[3] = rowexp & 0xff;
- exp[4] = HDCS_ROWEXPH;
- exp[5] = rowexp >> 8;
- exp[6] = HDCS00_SROWEXPL;
- exp[7] = srowexp & 0xff;
- exp[8] = HDCS00_SROWEXPH;
- exp[9] = srowexp >> 8;
- exp[10] = HDCS_STATUS;
- exp[11] = 0x10; /* Clear exposure error flag*/
- exp[12] = HDCS00_CONTROL;
- exp[13] = 0x04; /* Restart streaming */
- err = stv06xx_write_sensor_bytes(sd, exp, 7);
- if (err < 0)
- return err;
- }
- PDEBUG(D_V4L2, "Writing exposure %d, rowexp %d, srowexp %d",
- val, rowexp, srowexp);
- return err;
-}
-
-static int hdcs_set_gains(struct sd *sd, u8 g)
-{
- int err;
- u8 gains[4];
-
- /* the voltage gain Av = (1 + 19 * val / 127) * (1 + bit7) */
- if (g > 127)
- g = 0x80 | (g / 2);
-
- gains[0] = g;
- gains[1] = g;
- gains[2] = g;
- gains[3] = g;
-
- err = hdcs_reg_write_seq(sd, HDCS_ERECPGA, gains, 4);
- return err;
-}
-
-static int hdcs_set_gain(struct gspca_dev *gspca_dev, __s32 val)
-{
- PDEBUG(D_V4L2, "Writing gain %d", val);
- return hdcs_set_gains((struct sd *) gspca_dev,
- val & 0xff);
-}
-
-static int hdcs_set_size(struct sd *sd,
- unsigned int width, unsigned int height)
-{
- struct hdcs *hdcs = sd->sensor_priv;
- u8 win[4];
- unsigned int x, y;
- int err;
-
- /* must be multiple of 4 */
- width = (width + 3) & ~0x3;
- height = (height + 3) & ~0x3;
-
- if (width > hdcs->array.width)
- width = hdcs->array.width;
-
- if (IS_1020(sd)) {
- /* the borders are also invalid */
- if (height + 2 * hdcs->array.border + HDCS_1020_BOTTOM_Y_SKIP
- > hdcs->array.height)
- height = hdcs->array.height - 2 * hdcs->array.border -
- HDCS_1020_BOTTOM_Y_SKIP;
-
- y = (hdcs->array.height - HDCS_1020_BOTTOM_Y_SKIP - height) / 2
- + hdcs->array.top;
- } else {
- if (height > hdcs->array.height)
- height = hdcs->array.height;
-
- y = hdcs->array.top + (hdcs->array.height - height) / 2;
- }
-
- x = hdcs->array.left + (hdcs->array.width - width) / 2;
-
- win[0] = y / 4;
- win[1] = x / 4;
- win[2] = (y + height) / 4 - 1;
- win[3] = (x + width) / 4 - 1;
-
- err = hdcs_reg_write_seq(sd, HDCS_FWROW, win, 4);
- if (err < 0)
- return err;
-
- /* Update the current width and height */
- hdcs->w = width;
- hdcs->h = height;
- return err;
-}
-
-static int hdcs_s_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct gspca_dev *gspca_dev =
- container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
- int err = -EINVAL;
-
- switch (ctrl->id) {
- case V4L2_CID_GAIN:
- err = hdcs_set_gain(gspca_dev, ctrl->val);
- break;
- case V4L2_CID_EXPOSURE:
- err = hdcs_set_exposure(gspca_dev, ctrl->val);
- break;
- }
- return err;
-}
-
-static const struct v4l2_ctrl_ops hdcs_ctrl_ops = {
- .s_ctrl = hdcs_s_ctrl,
-};
-
-static int hdcs_init_controls(struct sd *sd)
-{
- struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
-
- v4l2_ctrl_handler_init(hdl, 2);
- v4l2_ctrl_new_std(hdl, &hdcs_ctrl_ops,
- V4L2_CID_EXPOSURE, 0, 0xff, 1, HDCS_DEFAULT_EXPOSURE);
- v4l2_ctrl_new_std(hdl, &hdcs_ctrl_ops,
- V4L2_CID_GAIN, 0, 0xff, 1, HDCS_DEFAULT_GAIN);
- return hdl->error;
-}
-
-static int hdcs_probe_1x00(struct sd *sd)
-{
- struct hdcs *hdcs;
- u16 sensor;
- int ret;
-
- ret = stv06xx_read_sensor(sd, HDCS_IDENT, &sensor);
- if (ret < 0 || sensor != 0x08)
- return -ENODEV;
-
- pr_info("HDCS-1000/1100 sensor detected\n");
-
- sd->gspca_dev.cam.cam_mode = hdcs1x00_mode;
- sd->gspca_dev.cam.nmodes = ARRAY_SIZE(hdcs1x00_mode);
-
- hdcs = kmalloc(sizeof(struct hdcs), GFP_KERNEL);
- if (!hdcs)
- return -ENOMEM;
-
- hdcs->array.left = 8;
- hdcs->array.top = 8;
- hdcs->array.width = HDCS_1X00_DEF_WIDTH;
- hdcs->array.height = HDCS_1X00_DEF_HEIGHT;
- hdcs->array.border = 4;
-
- hdcs->exp.cto = 4;
- hdcs->exp.cpo = 2;
- hdcs->exp.rs = 186;
- hdcs->exp.er = 100;
-
- /*
- * Frame rate on HDCS-1000 with STV600 depends on PSMP:
- * 4 = doesn't work at all
- * 5 = 7.8 fps,
- * 6 = 6.9 fps,
- * 8 = 6.3 fps,
- * 10 = 5.5 fps,
- * 15 = 4.4 fps,
- * 31 = 2.8 fps
- *
- * Frame rate on HDCS-1000 with STV602 depends on PSMP:
- * 15 = doesn't work at all
- * 18 = doesn't work at all
- * 19 = 7.3 fps
- * 20 = 7.4 fps
- * 21 = 7.4 fps
- * 22 = 7.4 fps
- * 24 = 6.3 fps
- * 30 = 5.4 fps
- */
- hdcs->psmp = (sd->bridge == BRIDGE_STV602) ? 20 : 5;
-
- sd->sensor_priv = hdcs;
-
- return 0;
-}
-
-static int hdcs_probe_1020(struct sd *sd)
-{
- struct hdcs *hdcs;
- u16 sensor;
- int ret;
-
- ret = stv06xx_read_sensor(sd, HDCS_IDENT, &sensor);
- if (ret < 0 || sensor != 0x10)
- return -ENODEV;
-
- pr_info("HDCS-1020 sensor detected\n");
-
- sd->gspca_dev.cam.cam_mode = hdcs1020_mode;
- sd->gspca_dev.cam.nmodes = ARRAY_SIZE(hdcs1020_mode);
-
- hdcs = kmalloc(sizeof(struct hdcs), GFP_KERNEL);
- if (!hdcs)
- return -ENOMEM;
-
- /*
- * From Andrey's test image: looks like HDCS-1020 upper-left
- * visible pixel is at 24,8 (y maybe even smaller?) and lower-right
- * visible pixel at 375,299 (x maybe even larger?)
- */
- hdcs->array.left = 24;
- hdcs->array.top = 4;
- hdcs->array.width = HDCS_1020_DEF_WIDTH;
- hdcs->array.height = 304;
- hdcs->array.border = 4;
-
- hdcs->psmp = 6;
-
- hdcs->exp.cto = 3;
- hdcs->exp.cpo = 3;
- hdcs->exp.rs = 155;
- hdcs->exp.er = 96;
-
- sd->sensor_priv = hdcs;
-
- return 0;
-}
-
-static int hdcs_start(struct sd *sd)
-{
- PDEBUG(D_STREAM, "Starting stream");
-
- return hdcs_set_state(sd, HDCS_STATE_RUN);
-}
-
-static int hdcs_stop(struct sd *sd)
-{
- PDEBUG(D_STREAM, "Halting stream");
-
- return hdcs_set_state(sd, HDCS_STATE_SLEEP);
-}
-
-static int hdcs_init(struct sd *sd)
-{
- struct hdcs *hdcs = sd->sensor_priv;
- int i, err = 0;
-
- /* Set the STV0602AA in STV0600 emulation mode */
- if (sd->bridge == BRIDGE_STV602)
- stv06xx_write_bridge(sd, STV_STV0600_EMULATION, 1);
-
- /* Execute the bridge init */
- for (i = 0; i < ARRAY_SIZE(stv_bridge_init) && !err; i++) {
- err = stv06xx_write_bridge(sd, stv_bridge_init[i][0],
- stv_bridge_init[i][1]);
- }
- if (err < 0)
- return err;
-
- /* sensor soft reset */
- hdcs_reset(sd);
-
- /* Execute the sensor init */
- for (i = 0; i < ARRAY_SIZE(stv_sensor_init) && !err; i++) {
- err = stv06xx_write_sensor(sd, stv_sensor_init[i][0],
- stv_sensor_init[i][1]);
- }
- if (err < 0)
- return err;
-
- /* Enable continuous frame capture, bit 2: stop when frame complete */
- err = stv06xx_write_sensor(sd, HDCS_REG_CONFIG(sd), BIT(3));
- if (err < 0)
- return err;
-
- /* Set PGA sample duration
- (was 0x7E for the STV602, but caused slow framerate with HDCS-1020) */
- if (IS_1020(sd))
- err = stv06xx_write_sensor(sd, HDCS_TCTRL,
- (HDCS_ADC_START_SIG_DUR << 6) | hdcs->psmp);
- else
- err = stv06xx_write_sensor(sd, HDCS_TCTRL,
- (HDCS_ADC_START_SIG_DUR << 5) | hdcs->psmp);
- if (err < 0)
- return err;
-
- return hdcs_set_size(sd, hdcs->array.width, hdcs->array.height);
-}
-
-static int hdcs_dump(struct sd *sd)
-{
- u16 reg, val;
-
- pr_info("Dumping sensor registers:\n");
-
- for (reg = HDCS_IDENT; reg <= HDCS_ROWEXPH; reg++) {
- stv06xx_read_sensor(sd, reg, &val);
- pr_info("reg 0x%02x = 0x%02x\n", reg, val);
- }
- return 0;
-}
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