/* * Driver for the s5k4aa sensor * * Copyright (C) 2008 Erik Andrén * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project. * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br> * * Portions of code to USB interface and ALi driver software, * Copyright (c) 2006 Willem Duinker * v4l2 interface modeled after the V4L2 driver * for SN9C10x PC Camera Controllers * * 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, version 2. * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include "m5602_s5k4aa.h" static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl); static void s5k4aa_dump_registers(struct sd *sd); static const struct v4l2_ctrl_ops s5k4aa_ctrl_ops = { .s_ctrl = s5k4aa_s_ctrl, }; static const struct dmi_system_id s5k4aa_vflip_dmi_table[] = { { .ident = "BRUNEINIT", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"), DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"), DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001") } }, { .ident = "Fujitsu-Siemens Amilo Xa 2528", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528") } }, { .ident = "Fujitsu-Siemens Amilo Xi 2428", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428") } }, { .ident = "Fujitsu-Siemens Amilo Xi 2528", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528") } }, { .ident = "Fujitsu-Siemens Amilo Xi 2550", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550") } }, { .ident = "Fujitsu-Siemens Amilo Pa 2548", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548") } }, { .ident = "Fujitsu-Siemens Amilo Pi 2530", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 2530") } }, { .ident = "MSI GX700", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), DMI_MATCH(DMI_PRODUCT_NAME, "GX700"), DMI_MATCH(DMI_BIOS_DATE, "12/02/2008") } }, { .ident = "MSI GX700", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), DMI_MATCH(DMI_PRODUCT_NAME, "GX700"), DMI_MATCH(DMI_BIOS_DATE, "07/26/2007") } }, { .ident = "MSI GX700", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), DMI_MATCH(DMI_PRODUCT_NAME, "GX700"), DMI_MATCH(DMI_BIOS_DATE, "07/19/2007") } }, { .ident = "MSI GX700/GX705/EX700", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700") } }, { .ident = "MSI L735", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X") } }, { .ident = "Lenovo Y300", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"), DMI_MATCH(DMI_PRODUCT_NAME, "Y300") } }, { } }; static struct v4l2_pix_format s5k4aa_modes[] = { { 640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .sizeimage = 640 * 480, .bytesperline = 640, .colorspace = V4L2_COLORSPACE_SRGB, .priv = 0 }, { 1280, 1024, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .sizeimage = 1280 * 1024, .bytesperline = 1280, .colorspace = V4L2_COLORSPACE_SRGB, .priv = 0 } }; int s5k4aa_probe(struct sd *sd) { u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75}; struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; int i, err = 0; if (force_sensor) { if (force_sensor == S5K4AA_SENSOR) { pr_info("Forcing a %s sensor\n", s5k4aa.name); goto sensor_found; } /* If we want to force another sensor, don't try to probe this * one */ return -ENODEV; } PDEBUG(D_PROBE, "Probing for a s5k4aa sensor"); /* Preinit the sensor */ for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) { u8 data[2] = {0x00, 0x00}; switch (preinit_s5k4aa[i][0]) { case BRIDGE: err = m5602_write_bridge(sd, preinit_s5k4aa[i][1], preinit_s5k4aa[i][2]); break; case SENSOR: data[0] = preinit_s5k4aa[i][2]; err = m5602_write_sensor(sd, preinit_s5k4aa[i][1], data, 1); break; case SENSOR_LONG: data[0] = preinit_s5k4aa[i][2]; data[1] = preinit_s5k4aa[i][3]; err = m5602_write_sensor(sd, preinit_s5k4aa[i][1], data, 2); break; default: pr_info("Invalid stream command, exiting init\n"); return -EINVAL; } } /* Test some registers, but we don't know their exact meaning yet */ if (m5602_read_sensor(sd, 0x00, prod_id, 2)) return -ENODEV; if (m5602_read_sensor(sd, 0x02, prod_id+2, 2)) return -ENODEV; if (m5602_read_sensor(sd, 0x04, prod_id+4, 2)) return -ENODEV; if (memcmp(prod_id, expected_prod_id, sizeof(prod_id))) return -ENODEV; else pr_info("Detected a s5k4aa sensor\n"); sensor_found: sd->gspca_dev.cam.cam_mode = s5k4aa_modes; sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes); return 0; } int s5k4aa_start(struct sd *sd) { int i, err = 0; u8 data[2]; struct cam *cam = &sd->gspca_dev.cam; struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) { case 1280: PDEBUG(D_CONF, "Configuring camera for SXGA mode"); for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) { switch (SXGA_s5k4aa[i][0]) { case BRIDGE: err = m5602_write_bridge(sd, SXGA_s5k4aa[i][1], SXGA_s5k4aa[i][2]); break; case SENSOR: data[0] = SXGA_s5k4aa[i][2]; err = m5602_write_sensor(sd, SXGA_s5k4aa[i][1], data, 1); break; case SENSOR_LONG: data[0] = SXGA_s5k4aa[i][2]; data[1] = SXGA_s5k4aa[i][3]; err = m5602_write_sensor(sd, SXGA_s5k4aa[i][1], data, 2); break; default: pr_err("Invalid stream command, exiting init\n"); return -EINVAL; } } break; case 640: PDEBUG(D_CONF, "Configuring camera for VGA mode"); for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) { switch (VGA_s5k4aa[i][0]) { case BRIDGE: err = m5602_write_bridge(sd, VGA_s5k4aa[i][1], VGA_s5k4aa[i][2]); break; case SENSOR: data[0] = VGA_s5k4aa[i][2]; err = m5602_write_sensor(sd, VGA_s5k4aa[i][1], data, 1); break; case SENSOR_LONG: data[0] = VGA_s5k4aa[i][2]; data[1] = VGA_s5k4aa[i][3]; err = m5602_write_sensor(sd, VGA_s5k4aa[i][1], data, 2); break; default: pr_err("Invalid stream command, exiting init\n"); return -EINVAL; } } break; } if (err < 0) return err; return 0; } int s5k4aa_init(struct sd *sd) { int i, err = 0; for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) { u8 data[2] = {0x00, 0x00}; switch (init_s5k4aa[i][0]) { case BRIDGE: err = m5602_write_bridge(sd, init_s5k4aa[i][1], init_s5k4aa[i][2]); break; case SENSOR: data[0] = init_s5k4aa[i][2]; err = m5602_write_sensor(sd, init_s5k4aa[i][1], data, 1); break; case SENSOR_LONG: data[0] = init_s5k4aa[i][2]; data[1] = init_s5k4aa[i][3]; err = m5602_write_sensor(sd, init_s5k4aa[i][1], data, 2); break; default: pr_info("Invalid stream command, exiting init\n"); return -EINVAL; } } if (dump_sensor) s5k4aa_dump_registers(sd); return err; } int s5k4aa_init_controls(struct sd *sd) { struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler; sd->gspca_dev.vdev.ctrl_handler = hdl; v4l2_ctrl_handler_init(hdl, 6); v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_BRIGHTNESS, 0, 0x1f, 1, S5K4AA_DEFAULT_BRIGHTNESS); v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_EXPOSURE, 13, 0xfff, 1, 0x100); v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_GAIN, 0, 127, 1, S5K4AA_DEFAULT_GAIN); v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_SHARPNESS, 0, 1, 1, 1); sd->hflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); sd->vflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); if (hdl->error) { pr_err("Could not initialize controls\n"); return hdl->error; } v4l2_ctrl_cluster(2, &sd->hflip); return 0; } static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; u8 data = S5K4AA_PAGE_MAP_2; int err; PDEBUG(D_CONF, "Set exposure to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) return err; data = (val >> 8) & 0xff; err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1); if (err < 0) return err; data = val & 0xff; err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1); return err; } static int s5k4aa_set_hvflip(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; u8 data = S5K4AA_PAGE_MAP_2; int err; int hflip = sd->hflip->val; int vflip = sd->vflip->val; PDEBUG(D_CONF, "Set hvflip %d %d", hflip, vflip); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) return err; err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1); if (err < 0) return err; if (dmi_check_system(s5k4aa_vflip_dmi_table)) { hflip = !hflip; vflip = !vflip; } data = (data & 0x7f) | (vflip << 7) | (hflip << 6); err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1); if (err < 0) return err; err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); if (err < 0) return err; if (hflip) data &= 0xfe; else data |= 0x01; err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); if (err < 0) return err; err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); if (err < 0) return err; if (vflip) data &= 0xfe; else data |= 0x01; err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); if (err < 0) return err; return 0; } static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; u8 data = S5K4AA_PAGE_MAP_2; int err; PDEBUG(D_CONF, "Set gain to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) return err; data = val & 0xff; err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1); return err; } static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; u8 data = S5K4AA_PAGE_MAP_2; int err; PDEBUG(D_CONF, "Set brightness to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) return err; data = val & 0xff; return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1); } static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; u8 data = S5K4AA_PAGE_MAP_2; int err; PDEBUG(D_CONF, "Set noise to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) return err; data = val & 0x01; return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1); } static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl) { struct gspca_dev *gspca_dev = container_of(ctrl->handler, struct gspca_dev, ctrl_handler); int err; if (!gspca_dev->streaming) return 0; switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: err = s5k4aa_set_brightness(gspca_dev, ctrl->val); break; case V4L2_CID_EXPOSURE: err = s5k4aa_set_exposure(gspca_dev, ctrl->val); break; case V4L2_CID_GAIN: err = s5k4aa_set_gain(gspca_dev, ctrl->val); break; case V4L2_CID_SHARPNESS: err = s5k4aa_set_noise(gspca_dev, ctrl->val); break; case V4L2_CID_HFLIP: err = s5k4aa_set_hvflip(gspca_dev); break; default: return -EINVAL; } return err; } void s5k4aa_disconnect(struct sd *sd) { sd->sensor = NULL; } static void s5k4aa_dump_registers(struct sd *sd) { int address; u8 page, old_page; m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1); for (page = 0; page < 16; page++) { m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1); pr_info("Dumping the s5k4aa register state for page 0x%x\n", page); for (address = 0; address <= 0xff; address++) { u8 value = 0; m5602_read_sensor(sd, address, &value, 1); pr_info("register 0x%x contains 0x%x\n", address, value); } } pr_info("s5k4aa register state dump complete\n"); for (page = 0; page < 16; page++) { m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1); pr_info("Probing for which registers that are read/write for page 0x%x\n", page); for (address = 0; address <= 0xff; address++) { u8 old_value, ctrl_value, test_value = 0xff; m5602_read_sensor(sd, address, &old_value, 1); m5602_write_sensor(sd, address, &test_value, 1); m5602_read_sensor(sd, address, &ctrl_value, 1); if (ctrl_value == test_value) pr_info("register 0x%x is writeable\n", address); else pr_info("register 0x%x is read only\n", address); /* Restore original value */ m5602_write_sensor(sd, address, &old_value, 1); } } pr_info("Read/write register probing complete\n"); m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1); }