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Diffstat (limited to 'drivers/media/video/ovcamchip/ov6x20.c')
-rw-r--r--drivers/media/video/ovcamchip/ov6x20.c414
1 files changed, 0 insertions, 414 deletions
diff --git a/drivers/media/video/ovcamchip/ov6x20.c b/drivers/media/video/ovcamchip/ov6x20.c
deleted file mode 100644
index c04130dab127..000000000000
--- a/drivers/media/video/ovcamchip/ov6x20.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/* OmniVision OV6620/OV6120 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * 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. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-/* Registers */
-#define REG_GAIN 0x00 /* gain [5:0] */
-#define REG_BLUE 0x01 /* blue gain */
-#define REG_RED 0x02 /* red gain */
-#define REG_SAT 0x03 /* saturation */
-#define REG_CNT 0x05 /* Y contrast */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_WB_BLUE 0x0C /* WB blue ratio [5:0] */
-#define REG_WB_RED 0x0D /* WB red ratio [5:0] */
-#define REG_EXP 0x10 /* exposure */
-
-/* Window parameters */
-#define HWSBASE 0x38
-#define HWEBASE 0x3A
-#define VWSBASE 0x05
-#define VWEBASE 0x06
-
-struct ov6x20 {
- int auto_brt;
- int auto_exp;
- int backlight;
- int bandfilt;
- int mirror;
-};
-
-/* Initial values for use with OV511/OV511+ cameras */
-static struct ovcamchip_regvals regvals_init_6x20_511[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x11, 0x01 },
- { 0x03, 0x60 },
- { 0x05, 0x7f }, /* For when autoadjust is off */
- { 0x07, 0xa8 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0x0f, 0x15 }, /* COMS */
- { 0x10, 0x75 }, /* AEC Exposure time */
- { 0x12, 0x24 }, /* Enable AGC and AWB */
- { 0x14, 0x04 },
- { 0x16, 0x03 },
- { 0x26, 0xb2 }, /* BLC enable */
- /* 0x28: 0x05 Selects RGB format if RGB on */
- { 0x28, 0x05 },
- { 0x2a, 0x04 }, /* Disable framerate adjust */
- { 0x2d, 0x99 },
- { 0x33, 0xa0 }, /* Color Processing Parameter */
- { 0x34, 0xd2 }, /* Max A/D range */
- { 0x38, 0x8b },
- { 0x39, 0x40 },
-
- { 0x3c, 0x39 }, /* Enable AEC mode changing */
- { 0x3c, 0x3c }, /* Change AEC mode */
- { 0x3c, 0x24 }, /* Disable AEC mode changing */
-
- { 0x3d, 0x80 },
- /* These next two registers (0x4a, 0x4b) are undocumented. They
- * control the color balance */
- { 0x4a, 0x80 },
- { 0x4b, 0x80 },
- { 0x4d, 0xd2 }, /* This reduces noise a bit */
- { 0x4e, 0xc1 },
- { 0x4f, 0x04 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* Initial values for use with OV518 cameras */
-static struct ovcamchip_regvals regvals_init_6x20_518[] = {
- { 0x12, 0x80 }, /* Do a reset */
- { 0x03, 0xc0 }, /* Saturation */
- { 0x05, 0x8a }, /* Contrast */
- { 0x0c, 0x24 }, /* AWB blue */
- { 0x0d, 0x24 }, /* AWB red */
- { 0x0e, 0x8d }, /* Additional 2x gain */
- { 0x0f, 0x25 }, /* Black expanding level = 1.3V */
- { 0x11, 0x01 }, /* Clock div. */
- { 0x12, 0x24 }, /* Enable AGC and AWB */
- { 0x13, 0x01 }, /* (default) */
- { 0x14, 0x80 }, /* Set reserved bit 7 */
- { 0x15, 0x01 }, /* (default) */
- { 0x16, 0x03 }, /* (default) */
- { 0x17, 0x38 }, /* (default) */
- { 0x18, 0xea }, /* (default) */
- { 0x19, 0x04 },
- { 0x1a, 0x93 },
- { 0x1b, 0x00 }, /* (default) */
- { 0x1e, 0xc4 }, /* (default) */
- { 0x1f, 0x04 }, /* (default) */
- { 0x20, 0x20 }, /* Enable 1st stage aperture correction */
- { 0x21, 0x10 }, /* Y offset */
- { 0x22, 0x88 }, /* U offset */
- { 0x23, 0xc0 }, /* Set XTAL power level */
- { 0x24, 0x53 }, /* AEC bright ratio */
- { 0x25, 0x7a }, /* AEC black ratio */
- { 0x26, 0xb2 }, /* BLC enable */
- { 0x27, 0xa2 }, /* Full output range */
- { 0x28, 0x01 }, /* (default) */
- { 0x29, 0x00 }, /* (default) */
- { 0x2a, 0x84 }, /* (default) */
- { 0x2b, 0xa8 }, /* Set custom frame rate */
- { 0x2c, 0xa0 }, /* (reserved) */
- { 0x2d, 0x95 }, /* Enable banding filter */
- { 0x2e, 0x88 }, /* V offset */
- { 0x33, 0x22 }, /* Luminance gamma on */
- { 0x34, 0xc7 }, /* A/D bias */
- { 0x36, 0x12 }, /* (reserved) */
- { 0x37, 0x63 }, /* (reserved) */
- { 0x38, 0x8b }, /* Quick AEC/AEB */
- { 0x39, 0x00 }, /* (default) */
- { 0x3a, 0x0f }, /* (default) */
- { 0x3b, 0x3c }, /* (default) */
- { 0x3c, 0x5c }, /* AEC controls */
- { 0x3d, 0x80 }, /* Drop 1 (bad) frame when AEC change */
- { 0x3e, 0x80 }, /* (default) */
- { 0x3f, 0x02 }, /* (default) */
- { 0x40, 0x10 }, /* (reserved) */
- { 0x41, 0x10 }, /* (reserved) */
- { 0x42, 0x00 }, /* (reserved) */
- { 0x43, 0x7f }, /* (reserved) */
- { 0x44, 0x80 }, /* (reserved) */
- { 0x45, 0x1c }, /* (reserved) */
- { 0x46, 0x1c }, /* (reserved) */
- { 0x47, 0x80 }, /* (reserved) */
- { 0x48, 0x5f }, /* (reserved) */
- { 0x49, 0x00 }, /* (reserved) */
- { 0x4a, 0x00 }, /* Color balance (undocumented) */
- { 0x4b, 0x80 }, /* Color balance (undocumented) */
- { 0x4c, 0x58 }, /* (reserved) */
- { 0x4d, 0xd2 }, /* U *= .938, V *= .838 */
- { 0x4e, 0xa0 }, /* (default) */
- { 0x4f, 0x04 }, /* UV 3-point average */
- { 0x50, 0xff }, /* (reserved) */
- { 0x51, 0x58 }, /* (reserved) */
- { 0x52, 0xc0 }, /* (reserved) */
- { 0x53, 0x42 }, /* (reserved) */
- { 0x27, 0xa6 }, /* Enable manual offset adj. (reg 21 & 22) */
- { 0x12, 0x20 },
- { 0x12, 0x24 },
-
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* This initializes the OV6x20 camera chip and relevant variables. */
-static int ov6x20_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x20 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- switch (c->adapter->id) {
- case I2C_HW_SMBUS_OV511:
- rc = ov_write_regvals(c, regvals_init_6x20_511);
- break;
- case I2C_HW_SMBUS_OV518:
- rc = ov_write_regvals(c, regvals_init_6x20_518);
- break;
- default:
- dev_err(&c->dev, "ov6x20: Unsupported adapter\n");
- rc = -ENODEV;
- }
-
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kzalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
-
- s->auto_brt = 1;
- s->auto_exp = 1;
-
- return rc;
-}
-
-static int ov6x20_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov6x20_set_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x20 *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_write(c, REG_CNT, v >> 8);
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_write(c, REG_BRT, v >> 8);
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_write(c, REG_RED, 0xFF - (v >> 8));
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, REG_BLUE, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_write(c, REG_EXP, v);
- break;
- case OVCAMCHIP_CID_FREQ:
- {
- int sixty = (v == 60);
-
- rc = ov_write(c, 0x2b, sixty?0xa8:0x28);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2a, sixty?0x84:0xa4);
- break;
- }
- case OVCAMCHIP_CID_BANDFILT:
- rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
- s->bandfilt = v;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
- s->auto_brt = v;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- rc = ov_write_mask(c, 0x13, v?0x01:0x00, 0x01);
- s->auto_exp = v;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- {
- rc = ov_write_mask(c, 0x4e, v?0xe0:0xc0, 0xe0);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x29, v?0x08:0x00, 0x08);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x0e, v?0x80:0x00, 0x80);
- s->backlight = v;
- break;
- }
- case OVCAMCHIP_CID_MIRROR:
- rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
- s->mirror = v;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
-out:
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
- return rc;
-}
-
-static int ov6x20_get_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x20 *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_read(c, REG_CNT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_read(c, REG_BRT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_read(c, REG_SAT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_read(c, REG_BLUE, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_read(c, REG_EXP, &val);
- ctl->value = val;
- break;
- case OVCAMCHIP_CID_BANDFILT:
- ctl->value = s->bandfilt;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- ctl->value = s->auto_brt;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- ctl->value = s->auto_exp;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- ctl->value = s->backlight;
- break;
- case OVCAMCHIP_CID_MIRROR:
- ctl->value = s->mirror;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, ctl->value, rc);
- return rc;
-}
-
-static int ov6x20_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- /******** QCIF-specific regs ********/
-
- ov_write(c, 0x14, win->quarter?0x24:0x04);
-
- /******** Palette-specific regs ********/
-
- /* OV518 needs 8 bit multiplexed in color mode, and 16 bit in B&W */
- if (c->adapter->id == I2C_HW_SMBUS_OV518) {
- if (win->format == VIDEO_PALETTE_GREY)
- ov_write_mask(c, 0x13, 0x00, 0x20);
- else
- ov_write_mask(c, 0x13, 0x20, 0x20);
- } else {
- if (win->format == VIDEO_PALETTE_GREY)
- ov_write_mask(c, 0x13, 0x20, 0x20);
- else
- ov_write_mask(c, 0x13, 0x00, 0x20);
- }
-
- /******** Clock programming ********/
-
- /* The OV6620 needs special handling. This prevents the
- * severe banding that normally occurs */
-
- /* Clock down */
- ov_write(c, 0x2a, 0x04);
-
- ov_write(c, 0x11, win->clockdiv);
-
- ov_write(c, 0x2a, 0x84);
- /* This next setting is critical. It seems to improve
- * the gain or the contrast. The "reserved" bits seem
- * to have some effect in this case. */
- ov_write(c, 0x2d, 0x85); /* FIXME: This messes up banding filter */
-
- return 0;
-}
-
-static int ov6x20_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov6x20_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 0;
- vwscale = 0;
- } else {
- hwscale = 1;
- vwscale = 1; /* The datasheet says 0; it's wrong */
- }
-
- ov_write(c, 0x17, HWSBASE + (win->x >> hwscale));
- ov_write(c, 0x18, HWEBASE + ((win->x + win->width) >> hwscale));
- ov_write(c, 0x19, VWSBASE + (win->y >> vwscale));
- ov_write(c, 0x1a, VWEBASE + ((win->y + win->height) >> vwscale));
-
- return 0;
-}
-
-static int ov6x20_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov6x20_set_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov6x20_get_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov6x20_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov6x20_ops = {
- .init = ov6x20_init,
- .free = ov6x20_free,
- .command = ov6x20_command,
-};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.