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path: root/drivers/media/video/ovcamchip/ov7x10.c
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Diffstat (limited to 'drivers/media/video/ovcamchip/ov7x10.c')
-rw-r--r--drivers/media/video/ovcamchip/ov7x10.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/drivers/media/video/ovcamchip/ov7x10.c b/drivers/media/video/ovcamchip/ov7x10.c
deleted file mode 100644
index 5206e7913924..000000000000
--- a/drivers/media/video/ovcamchip/ov7x10.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/* OmniVision OV7610/OV7110 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * Color fixes by by Orion Sky Lawlor <olawlor@acm.org> (2/26/2000)
- *
- * 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 channel balance */
-#define REG_RED 0x02 /* red channel balance */
-#define REG_SAT 0x03 /* saturation */
-#define REG_CNT 0x05 /* Y contrast */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_BLUE_BIAS 0x0C /* blue channel bias [5:0] */
-#define REG_RED_BIAS 0x0D /* red channel bias [5:0] */
-#define REG_GAMMA_COEFF 0x0E /* gamma settings */
-#define REG_WB_RANGE 0x0F /* AEC/ALC/S-AWB settings */
-#define REG_EXP 0x10 /* manual exposure setting */
-#define REG_CLOCK 0x11 /* polarity/clock prescaler */
-#define REG_FIELD_DIVIDE 0x16 /* field interval/mode settings */
-#define REG_HWIN_START 0x17 /* horizontal window start */
-#define REG_HWIN_END 0x18 /* horizontal window end */
-#define REG_VWIN_START 0x19 /* vertical window start */
-#define REG_VWIN_END 0x1A /* vertical window end */
-#define REG_PIXEL_SHIFT 0x1B /* pixel shift */
-#define REG_YOFFSET 0x21 /* Y channel offset */
-#define REG_UOFFSET 0x22 /* U channel offset */
-#define REG_ECW 0x24 /* exposure white level for AEC */
-#define REG_ECB 0x25 /* exposure black level for AEC */
-#define REG_FRAMERATE_H 0x2A /* frame rate MSB + misc */
-#define REG_FRAMERATE_L 0x2B /* frame rate LSB */
-#define REG_ALC 0x2C /* Auto Level Control settings */
-#define REG_VOFFSET 0x2E /* V channel offset adjustment */
-#define REG_ARRAY_BIAS 0x2F /* array bias -- don't change */
-#define REG_YGAMMA 0x33 /* misc gamma settings [7:6] */
-#define REG_BIAS_ADJUST 0x34 /* misc bias settings */
-
-/* Window parameters */
-#define HWSBASE 0x38
-#define HWEBASE 0x3a
-#define VWSBASE 0x05
-#define VWEBASE 0x05
-
-struct ov7x10 {
- int auto_brt;
- int auto_exp;
- int bandfilt;
- int mirror;
-};
-
-/* Lawrence Glaister <lg@jfm.bc.ca> reports:
- *
- * Register 0x0f in the 7610 has the following effects:
- *
- * 0x85 (AEC method 1): Best overall, good contrast range
- * 0x45 (AEC method 2): Very overexposed
- * 0xa5 (spec sheet default): Ok, but the black level is
- * shifted resulting in loss of contrast
- * 0x05 (old driver setting): very overexposed, too much
- * contrast
- */
-static struct ovcamchip_regvals regvals_init_7x10[] = {
- { 0x10, 0xff },
- { 0x16, 0x03 },
- { 0x28, 0x24 },
- { 0x2b, 0xac },
- { 0x12, 0x00 },
- { 0x38, 0x81 },
- { 0x28, 0x24 }, /* 0c */
- { 0x0f, 0x85 }, /* lg's setting */
- { 0x15, 0x01 },
- { 0x20, 0x1c },
- { 0x23, 0x2a },
- { 0x24, 0x10 },
- { 0x25, 0x8a },
- { 0x26, 0xa2 },
- { 0x27, 0xc2 },
- { 0x2a, 0x04 },
- { 0x2c, 0xfe },
- { 0x2d, 0x93 },
- { 0x30, 0x71 },
- { 0x31, 0x60 },
- { 0x32, 0x26 },
- { 0x33, 0x20 },
- { 0x34, 0x48 },
- { 0x12, 0x24 },
- { 0x11, 0x01 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* This initializes the OV7x10 camera chip and relevant variables. */
-static int ov7x10_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x10 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- rc = ov_write_regvals(c, regvals_init_7x10);
- 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 ov7x10_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov7x10_set_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x10 *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_mask(c, 0x2a, sixty?0x00:0x80, 0x80);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2b, sixty?0x00:0xac);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x13, 0x10, 0x10);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x13, 0x00, 0x10);
- 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, 0x29, v?0x00:0x80, 0x80);
- s->auto_exp = 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 ov7x10_get_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x10 *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_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 ov7x10_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int qvga = win->quarter;
-
- /******** QVGA-specific regs ********/
-
- ov_write(c, 0x14, qvga?0x24:0x04);
-
- /******** Palette-specific regs ********/
-
- if (win->format == VIDEO_PALETTE_GREY) {
- ov_write_mask(c, 0x0e, 0x40, 0x40);
- ov_write_mask(c, 0x13, 0x20, 0x20);
- } else {
- ov_write_mask(c, 0x0e, 0x00, 0x40);
- ov_write_mask(c, 0x13, 0x00, 0x20);
- }
-
- /******** Clock programming ********/
-
- ov_write(c, 0x11, win->clockdiv);
-
- /******** Resolution-specific ********/
-
- if (win->width == 640 && win->height == 480)
- ov_write(c, 0x35, 0x9e);
- else
- ov_write(c, 0x35, 0x1e);
-
- return 0;
-}
-
-static int ov7x10_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov7x10_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 1;
- vwscale = 0;
- } else {
- hwscale = 2;
- vwscale = 1;
- }
-
- 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 ov7x10_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov7x10_set_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov7x10_get_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov7x10_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov7x10_ops = {
- .init = ov7x10_init,
- .free = ov7x10_free,
- .command = ov7x10_command,
-};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.