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path: root/drivers/media/video/ovcamchip/ov7x20.c
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Diffstat (limited to 'drivers/media/video/ovcamchip/ov7x20.c')
-rw-r--r--drivers/media/video/ovcamchip/ov7x20.c454
1 files changed, 0 insertions, 454 deletions
diff --git a/drivers/media/video/ovcamchip/ov7x20.c b/drivers/media/video/ovcamchip/ov7x20.c
deleted file mode 100644
index 8e26ae338f31..000000000000
--- a/drivers/media/video/ovcamchip/ov7x20.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/* OmniVision OV7620/OV7120 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * OV7620 fixes by Charl P. Botha <cpbotha@ieee.org>
- *
- * 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_BRT 0x06 /* Y brightness */
-#define REG_SHARP 0x07 /* analog sharpness */
-#define REG_BLUE_BIAS 0x0C /* WB blue ratio [5:0] */
-#define REG_RED_BIAS 0x0D /* WB red ratio [5:0] */
-#define REG_EXP 0x10 /* exposure */
-
-/* Default control settings. Values are in terms of V4L2 controls. */
-#define OV7120_DFL_BRIGHT 0x60
-#define OV7620_DFL_BRIGHT 0x60
-#define OV7120_DFL_SAT 0xb0
-#define OV7620_DFL_SAT 0xc0
-#define DFL_AUTO_EXP 1
-#define DFL_AUTO_GAIN 1
-#define OV7120_DFL_GAIN 0x00
-#define OV7620_DFL_GAIN 0x00
-/* NOTE: Since autoexposure is the default, these aren't programmed into the
- * OV7x20 chip. They are just here because V4L2 expects a default */
-#define OV7120_DFL_EXP 0x7f
-#define OV7620_DFL_EXP 0x7f
-
-/* Window parameters */
-#define HWSBASE 0x2F /* From 7620.SET (spec is wrong) */
-#define HWEBASE 0x2F
-#define VWSBASE 0x05
-#define VWEBASE 0x05
-
-struct ov7x20 {
- int auto_brt;
- int auto_exp;
- int auto_gain;
- int backlight;
- int bandfilt;
- int mirror;
-};
-
-/* Contrast look-up table */
-static unsigned char ctab[] = {
- 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
- 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
-};
-
-/* Settings for (Black & White) OV7120 camera chip */
-static struct ovcamchip_regvals regvals_init_7120[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x13, 0x00 }, /* Autoadjust off */
- { 0x12, 0x20 }, /* Disable AWB */
- { 0x13, DFL_AUTO_GAIN?0x01:0x00 }, /* Autoadjust on (if desired) */
- { 0x00, OV7120_DFL_GAIN },
- { 0x01, 0x80 },
- { 0x02, 0x80 },
- { 0x03, OV7120_DFL_SAT },
- { 0x06, OV7120_DFL_BRIGHT },
- { 0x07, 0x00 },
- { 0x0c, 0x20 },
- { 0x0d, 0x20 },
- { 0x11, 0x01 },
- { 0x14, 0x84 },
- { 0x15, 0x01 },
- { 0x16, 0x03 },
- { 0x17, 0x2f },
- { 0x18, 0xcf },
- { 0x19, 0x06 },
- { 0x1a, 0xf5 },
- { 0x1b, 0x00 },
- { 0x20, 0x08 },
- { 0x21, 0x80 },
- { 0x22, 0x80 },
- { 0x23, 0x00 },
- { 0x26, 0xa0 },
- { 0x27, 0xfa },
- { 0x28, 0x20 }, /* DON'T set bit 6. It is for the OV7620 only */
- { 0x29, DFL_AUTO_EXP?0x00:0x80 },
- { 0x2a, 0x10 },
- { 0x2b, 0x00 },
- { 0x2c, 0x88 },
- { 0x2d, 0x95 },
- { 0x2e, 0x80 },
- { 0x2f, 0x44 },
- { 0x60, 0x20 },
- { 0x61, 0x02 },
- { 0x62, 0x5f },
- { 0x63, 0xd5 },
- { 0x64, 0x57 },
- { 0x65, 0x83 }, /* OV says "don't change this value" */
- { 0x66, 0x55 },
- { 0x67, 0x92 },
- { 0x68, 0xcf },
- { 0x69, 0x76 },
- { 0x6a, 0x22 },
- { 0x6b, 0xe2 },
- { 0x6c, 0x40 },
- { 0x6d, 0x48 },
- { 0x6e, 0x80 },
- { 0x6f, 0x0d },
- { 0x70, 0x89 },
- { 0x71, 0x00 },
- { 0x72, 0x14 },
- { 0x73, 0x54 },
- { 0x74, 0xa0 },
- { 0x75, 0x8e },
- { 0x76, 0x00 },
- { 0x77, 0xff },
- { 0x78, 0x80 },
- { 0x79, 0x80 },
- { 0x7a, 0x80 },
- { 0x7b, 0xe6 },
- { 0x7c, 0x00 },
- { 0x24, 0x3a },
- { 0x25, 0x60 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* Settings for (color) OV7620 camera chip */
-static struct ovcamchip_regvals regvals_init_7620[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x00, OV7620_DFL_GAIN },
- { 0x01, 0x80 },
- { 0x02, 0x80 },
- { 0x03, OV7620_DFL_SAT },
- { 0x06, OV7620_DFL_BRIGHT },
- { 0x07, 0x00 },
- { 0x0c, 0x24 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0x11, 0x01 },
- { 0x12, 0x24 },
- { 0x13, DFL_AUTO_GAIN?0x01:0x00 },
- { 0x14, 0x84 },
- { 0x15, 0x01 },
- { 0x16, 0x03 },
- { 0x17, 0x2f },
- { 0x18, 0xcf },
- { 0x19, 0x06 },
- { 0x1a, 0xf5 },
- { 0x1b, 0x00 },
- { 0x20, 0x18 },
- { 0x21, 0x80 },
- { 0x22, 0x80 },
- { 0x23, 0x00 },
- { 0x26, 0xa2 },
- { 0x27, 0xea },
- { 0x28, 0x20 },
- { 0x29, DFL_AUTO_EXP?0x00:0x80 },
- { 0x2a, 0x10 },
- { 0x2b, 0x00 },
- { 0x2c, 0x88 },
- { 0x2d, 0x91 },
- { 0x2e, 0x80 },
- { 0x2f, 0x44 },
- { 0x60, 0x27 },
- { 0x61, 0x02 },
- { 0x62, 0x5f },
- { 0x63, 0xd5 },
- { 0x64, 0x57 },
- { 0x65, 0x83 },
- { 0x66, 0x55 },
- { 0x67, 0x92 },
- { 0x68, 0xcf },
- { 0x69, 0x76 },
- { 0x6a, 0x22 },
- { 0x6b, 0x00 },
- { 0x6c, 0x02 },
- { 0x6d, 0x44 },
- { 0x6e, 0x80 },
- { 0x6f, 0x1d },
- { 0x70, 0x8b },
- { 0x71, 0x00 },
- { 0x72, 0x14 },
- { 0x73, 0x54 },
- { 0x74, 0x00 },
- { 0x75, 0x8e },
- { 0x76, 0x00 },
- { 0x77, 0xff },
- { 0x78, 0x80 },
- { 0x79, 0x80 },
- { 0x7a, 0x80 },
- { 0x7b, 0xe2 },
- { 0x7c, 0x00 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* Returns index into the specified look-up table, with 'n' elements, for which
- * the value is greater than or equal to "val". If a match isn't found, (n-1)
- * is returned. The entries in the table must be in ascending order. */
-static inline int ov7x20_lut_find(unsigned char lut[], int n, unsigned char val)
-{
- int i = 0;
-
- while (lut[i] < val && i < n)
- i++;
-
- return i;
-}
-
-/* This initializes the OV7x20 camera chip and relevant variables. */
-static int ov7x20_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x20 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- if (ov->mono)
- rc = ov_write_regvals(c, regvals_init_7120);
- else
- rc = ov_write_regvals(c, regvals_init_7620);
-
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kzalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
-
- s->auto_brt = 1;
- s->auto_exp = DFL_AUTO_EXP;
- s->auto_gain = DFL_AUTO_GAIN;
-
- return 0;
-}
-
-static int ov7x20_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov7x20_set_v4l1_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x20 *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- {
- /* Use Y gamma control instead. Bit 0 enables it. */
- rc = ov_write(c, 0x64, ctab[v >> 12]);
- break;
- }
- case OVCAMCHIP_CID_BRIGHT:
- /* 7620 doesn't like manual changes when in auto mode */
- if (!s->auto_brt)
- rc = ov_write(c, REG_BRT, v >> 8);
- else
- rc = 0;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- if (!s->auto_exp)
- rc = ov_write(c, REG_EXP, v);
- else
- rc = -EBUSY;
- 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, 0x76, 0x01, 0x01);
- 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, 0x68, 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, 0x28, v?0x02:0x00, 0x02);
- 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 ov7x20_get_v4l1_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x20 *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_read(c, 0x64, &val);
- ctl->value = ov7x20_lut_find(ctab, 16, val) << 12;
- 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_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 ov7x20_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- int qvga = win->quarter;
-
- /******** QVGA-specific regs ********/
- ov_write_mask(c, 0x14, qvga?0x20:0x00, 0x20);
- ov_write_mask(c, 0x28, qvga?0x00:0x20, 0x20);
- ov_write(c, 0x24, qvga?0x20:0x3a);
- ov_write(c, 0x25, qvga?0x30:0x60);
- ov_write_mask(c, 0x2d, qvga?0x40:0x00, 0x40);
- if (!ov->mono)
- ov_write_mask(c, 0x67, qvga?0xf0:0x90, 0xf0);
- ov_write_mask(c, 0x74, qvga?0x20:0x00, 0x20);
-
- /******** Clock programming ********/
-
- ov_write(c, 0x11, win->clockdiv);
-
- return 0;
-}
-
-static int ov7x20_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov7x20_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 ov7x20_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov7x20_set_v4l1_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov7x20_get_v4l1_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov7x20_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov7x20_ops = {
- .init = ov7x20_init,
- .free = ov7x20_free,
- .command = ov7x20_command,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 17:25:56 +0000