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path: root/drivers/media/video/bt819.c
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Diffstat (limited to 'drivers/media/video/bt819.c')
-rw-r--r--drivers/media/video/bt819.c641
1 files changed, 0 insertions, 641 deletions
diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
deleted file mode 100644
index ddd2a7964de..00000000000
--- a/drivers/media/video/bt819.c
+++ /dev/null
@@ -1,641 +0,0 @@
-/*
- * bt819 - BT819A VideoStream Decoder (Rockwell Part)
- *
- * Copyright (C) 1999 Mike Bernson <mike@mlb.org>
- * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
- *
- * Modifications for LML33/DC10plus unified driver
- * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
- *
- * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
- * - moved over to linux>=2.4.x i2c protocol (9/9/2002)
- *
- * This code was modify/ported from the saa7111 driver written
- * by Dave Perks.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/signal.h>
-#include <linux/types.h>
-#include <linux/i2c.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/uaccess.h>
-
-#include <linux/videodev.h>
-#include <linux/video_decoder.h>
-
-
-MODULE_DESCRIPTION("Brooktree-819 video decoder driver");
-MODULE_AUTHOR("Mike Bernson & Dave Perks");
-MODULE_LICENSE("GPL");
-
-
-#define I2C_NAME(s) (s)->name
-
-
-static int debug;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0-1)");
-
-#define dprintk(num, format, args...) \
- do { \
- if (debug >= num) \
- printk(format, ##args); \
- } while (0)
-
-/* ----------------------------------------------------------------------- */
-
-struct bt819 {
- unsigned char reg[32];
-
- int initialized;
- int norm;
- int input;
- int enable;
- int bright;
- int contrast;
- int hue;
- int sat;
-};
-
-struct timing {
- int hactive;
- int hdelay;
- int vactive;
- int vdelay;
- int hscale;
- int vscale;
-};
-
-/* for values, see the bt819 datasheet */
-static struct timing timing_data[] = {
- {864 - 24, 20, 625 - 2, 1, 0x0504, 0x0000},
- {858 - 24, 20, 525 - 2, 1, 0x00f8, 0x0000},
-};
-
-#define I2C_BT819 0x8a
-
-/* ----------------------------------------------------------------------- */
-
-static inline int
-bt819_write (struct i2c_client *client,
- u8 reg,
- u8 value)
-{
- struct bt819 *decoder = i2c_get_clientdata(client);
-
- decoder->reg[reg] = value;
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-static inline int
-bt819_setbit (struct i2c_client *client,
- u8 reg,
- u8 bit,
- u8 value)
-{
- struct bt819 *decoder = i2c_get_clientdata(client);
-
- return bt819_write(client, reg,
- (decoder->
- reg[reg] & ~(1 << bit)) |
- (value ? (1 << bit) : 0));
-}
-
-static int
-bt819_write_block (struct i2c_client *client,
- const u8 *data,
- unsigned int len)
-{
- int ret = -1;
- u8 reg;
-
- /* the bt819 has an autoincrement function, use it if
- * the adapter understands raw I2C */
- if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
- /* do raw I2C, not smbus compatible */
- struct bt819 *decoder = i2c_get_clientdata(client);
- u8 block_data[32];
- int block_len;
-
- while (len >= 2) {
- block_len = 0;
- block_data[block_len++] = reg = data[0];
- do {
- block_data[block_len++] =
- decoder->reg[reg++] = data[1];
- len -= 2;
- data += 2;
- } while (len >= 2 && data[0] == reg &&
- block_len < 32);
- if ((ret = i2c_master_send(client, block_data,
- block_len)) < 0)
- break;
- }
- } else {
- /* do some slow I2C emulation kind of thing */
- while (len >= 2) {
- reg = *data++;
- if ((ret = bt819_write(client, reg, *data++)) < 0)
- break;
- len -= 2;
- }
- }
-
- return ret;
-}
-
-static inline int
-bt819_read (struct i2c_client *client,
- u8 reg)
-{
- return i2c_smbus_read_byte_data(client, reg);
-}
-
-static int
-bt819_init (struct i2c_client *client)
-{
- struct bt819 *decoder = i2c_get_clientdata(client);
-
- static unsigned char init[] = {
- //0x1f, 0x00, /* Reset */
- 0x01, 0x59, /* 0x01 input format */
- 0x02, 0x00, /* 0x02 temporal decimation */
- 0x03, 0x12, /* 0x03 Cropping msb */
- 0x04, 0x16, /* 0x04 Vertical Delay, lsb */
- 0x05, 0xe0, /* 0x05 Vertical Active lsb */
- 0x06, 0x80, /* 0x06 Horizontal Delay lsb */
- 0x07, 0xd0, /* 0x07 Horizontal Active lsb */
- 0x08, 0x00, /* 0x08 Horizontal Scaling msb */
- 0x09, 0xf8, /* 0x09 Horizontal Scaling lsb */
- 0x0a, 0x00, /* 0x0a Brightness control */
- 0x0b, 0x30, /* 0x0b Miscellaneous control */
- 0x0c, 0xd8, /* 0x0c Luma Gain lsb */
- 0x0d, 0xfe, /* 0x0d Chroma Gain (U) lsb */
- 0x0e, 0xb4, /* 0x0e Chroma Gain (V) msb */
- 0x0f, 0x00, /* 0x0f Hue control */
- 0x12, 0x04, /* 0x12 Output Format */
- 0x13, 0x20, /* 0x13 Vertial Scaling msb 0x00
- chroma comb OFF, line drop scaling, interlace scaling
- BUG? Why does turning the chroma comb on fuck up color?
- Bug in the bt819 stepping on my board?
- */
- 0x14, 0x00, /* 0x14 Vertial Scaling lsb */
- 0x16, 0x07, /* 0x16 Video Timing Polarity
- ACTIVE=active low
- FIELD: high=odd,
- vreset=active high,
- hreset=active high */
- 0x18, 0x68, /* 0x18 AGC Delay */
- 0x19, 0x5d, /* 0x19 Burst Gate Delay */
- 0x1a, 0x80, /* 0x1a ADC Interface */
- };
-
- struct timing *timing = &timing_data[decoder->norm];
-
- init[0x03 * 2 - 1] =
- (((timing->vdelay >> 8) & 0x03) << 6) | (((timing->
- vactive >> 8) &
- 0x03) << 4) |
- (((timing->hdelay >> 8) & 0x03) << 2) | ((timing->
- hactive >> 8) &
- 0x03);
- init[0x04 * 2 - 1] = timing->vdelay & 0xff;
- init[0x05 * 2 - 1] = timing->vactive & 0xff;
- init[0x06 * 2 - 1] = timing->hdelay & 0xff;
- init[0x07 * 2 - 1] = timing->hactive & 0xff;
- init[0x08 * 2 - 1] = timing->hscale >> 8;
- init[0x09 * 2 - 1] = timing->hscale & 0xff;
- /* 0x15 in array is address 0x19 */
- init[0x15 * 2 - 1] = (decoder->norm == 0) ? 115 : 93; /* Chroma burst delay */
- /* reset */
- bt819_write(client, 0x1f, 0x00);
- mdelay(1);
-
- /* init */
- return bt819_write_block(client, init, sizeof(init));
-
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int
-bt819_command (struct i2c_client *client,
- unsigned int cmd,
- void *arg)
-{
- int temp;
-
- struct bt819 *decoder = i2c_get_clientdata(client);
-
- if (!decoder->initialized) { // First call to bt819_init could be
- bt819_init(client); // without #FRST = 0
- decoder->initialized = 1;
- }
-
- switch (cmd) {
-
- case 0:
- /* This is just for testing!!! */
- bt819_init(client);
- break;
-
- case DECODER_GET_CAPABILITIES:
- {
- struct video_decoder_capability *cap = arg;
-
- cap->flags = VIDEO_DECODER_PAL |
- VIDEO_DECODER_NTSC |
- VIDEO_DECODER_AUTO |
- VIDEO_DECODER_CCIR;
- cap->inputs = 8;
- cap->outputs = 1;
- }
- break;
-
- case DECODER_GET_STATUS:
- {
- int *iarg = arg;
- int status;
- int res;
-
- status = bt819_read(client, 0x00);
- res = 0;
- if ((status & 0x80)) {
- res |= DECODER_STATUS_GOOD;
- }
- switch (decoder->norm) {
- case VIDEO_MODE_NTSC:
- res |= DECODER_STATUS_NTSC;
- break;
- case VIDEO_MODE_PAL:
- res |= DECODER_STATUS_PAL;
- break;
- default:
- case VIDEO_MODE_AUTO:
- if ((status & 0x10)) {
- res |= DECODER_STATUS_PAL;
- } else {
- res |= DECODER_STATUS_NTSC;
- }
- break;
- }
- res |= DECODER_STATUS_COLOR;
- *iarg = res;
-
- dprintk(1, KERN_INFO "%s: get status %x\n", I2C_NAME(client),
- *iarg);
- }
- break;
-
- case DECODER_SET_NORM:
- {
- int *iarg = arg;
- struct timing *timing = NULL;
-
- dprintk(1, KERN_INFO "%s: set norm %x\n", I2C_NAME(client),
- *iarg);
-
- switch (*iarg) {
- case VIDEO_MODE_NTSC:
- bt819_setbit(client, 0x01, 0, 1);
- bt819_setbit(client, 0x01, 1, 0);
- bt819_setbit(client, 0x01, 5, 0);
- bt819_write(client, 0x18, 0x68);
- bt819_write(client, 0x19, 0x5d);
- //bt819_setbit(client, 0x1a, 5, 1);
- timing = &timing_data[VIDEO_MODE_NTSC];
- break;
- case VIDEO_MODE_PAL:
- bt819_setbit(client, 0x01, 0, 1);
- bt819_setbit(client, 0x01, 1, 1);
- bt819_setbit(client, 0x01, 5, 1);
- bt819_write(client, 0x18, 0x7f);
- bt819_write(client, 0x19, 0x72);
- //bt819_setbit(client, 0x1a, 5, 0);
- timing = &timing_data[VIDEO_MODE_PAL];
- break;
- case VIDEO_MODE_AUTO:
- bt819_setbit(client, 0x01, 0, 0);
- bt819_setbit(client, 0x01, 1, 0);
- break;
- default:
- dprintk(1,
- KERN_ERR
- "%s: unsupported norm %d\n",
- I2C_NAME(client), *iarg);
- return -EINVAL;
- }
-
- if (timing) {
- bt819_write(client, 0x03,
- (((timing->vdelay >> 8) & 0x03) << 6) |
- (((timing->vactive >> 8) & 0x03) << 4) |
- (((timing->hdelay >> 8) & 0x03) << 2) |
- ((timing->hactive >> 8) & 0x03) );
- bt819_write(client, 0x04, timing->vdelay & 0xff);
- bt819_write(client, 0x05, timing->vactive & 0xff);
- bt819_write(client, 0x06, timing->hdelay & 0xff);
- bt819_write(client, 0x07, timing->hactive & 0xff);
- bt819_write(client, 0x08, (timing->hscale >> 8) & 0xff);
- bt819_write(client, 0x09, timing->hscale & 0xff);
- }
-
- decoder->norm = *iarg;
- }
- break;
-
- case DECODER_SET_INPUT:
- {
- int *iarg = arg;
-
- dprintk(1, KERN_INFO "%s: set input %x\n", I2C_NAME(client),
- *iarg);
-
- if (*iarg < 0 || *iarg > 7) {
- return -EINVAL;
- }
-
- if (decoder->input != *iarg) {
- decoder->input = *iarg;
- /* select mode */
- if (decoder->input == 0) {
- bt819_setbit(client, 0x0b, 6, 0);
- bt819_setbit(client, 0x1a, 1, 1);
- } else {
- bt819_setbit(client, 0x0b, 6, 1);
- bt819_setbit(client, 0x1a, 1, 0);
- }
- }
- }
- break;
-
- case DECODER_SET_OUTPUT:
- {
- int *iarg = arg;
-
- dprintk(1, KERN_INFO "%s: set output %x\n", I2C_NAME(client),
- *iarg);
-
- /* not much choice of outputs */
- if (*iarg != 0) {
- return -EINVAL;
- }
- }
- break;
-
- case DECODER_ENABLE_OUTPUT:
- {
- int *iarg = arg;
- int enable = (*iarg != 0);
-
- dprintk(1, KERN_INFO "%s: enable output %x\n",
- I2C_NAME(client), *iarg);
-
- if (decoder->enable != enable) {
- decoder->enable = enable;
-
- if (decoder->enable) {
- bt819_setbit(client, 0x16, 7, 0);
- } else {
- bt819_setbit(client, 0x16, 7, 1);
- }
- }
- }
- break;
-
- case DECODER_SET_PICTURE:
- {
- struct video_picture *pic = arg;
-
- dprintk(1,
- KERN_INFO
- "%s: set picture brightness %d contrast %d colour %d\n",
- I2C_NAME(client), pic->brightness, pic->contrast,
- pic->colour);
-
-
- if (decoder->bright != pic->brightness) {
- /* We want -128 to 127 we get 0-65535 */
- decoder->bright = pic->brightness;
- bt819_write(client, 0x0a,
- (decoder->bright >> 8) - 128);
- }
-
- if (decoder->contrast != pic->contrast) {
- /* We want 0 to 511 we get 0-65535 */
- decoder->contrast = pic->contrast;
- bt819_write(client, 0x0c,
- (decoder->contrast >> 7) & 0xff);
- bt819_setbit(client, 0x0b, 2,
- ((decoder->contrast >> 15) & 0x01));
- }
-
- if (decoder->sat != pic->colour) {
- /* We want 0 to 511 we get 0-65535 */
- decoder->sat = pic->colour;
- bt819_write(client, 0x0d,
- (decoder->sat >> 7) & 0xff);
- bt819_setbit(client, 0x0b, 1,
- ((decoder->sat >> 15) & 0x01));
-
- temp = (decoder->sat * 201) / 237;
- bt819_write(client, 0x0e, (temp >> 7) & 0xff);
- bt819_setbit(client, 0x0b, 0, (temp >> 15) & 0x01);
- }
-
- if (decoder->hue != pic->hue) {
- /* We want -128 to 127 we get 0-65535 */
- decoder->hue = pic->hue;
- bt819_write(client, 0x0f,
- 128 - (decoder->hue >> 8));
- }
- }
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-/*
- * Generic i2c probe
- * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
- */
-static unsigned short normal_i2c[] = {
- I2C_BT819 >> 1,
- I2C_CLIENT_END,
-};
-
-static unsigned short ignore = I2C_CLIENT_END;
-
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .probe = &ignore,
- .ignore = &ignore,
-};
-
-static struct i2c_driver i2c_driver_bt819;
-
-static int
-bt819_detect_client (struct i2c_adapter *adapter,
- int address,
- int kind)
-{
- int i, id;
- struct bt819 *decoder;
- struct i2c_client *client;
-
- dprintk(1,
- KERN_INFO
- "bt819: detecting bt819 client on address 0x%x\n",
- address << 1);
-
- /* Check if the adapter supports the needed features */
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
-
- client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver_bt819;
-
- decoder = kzalloc(sizeof(struct bt819), GFP_KERNEL);
- if (decoder == NULL) {
- kfree(client);
- return -ENOMEM;
- }
- decoder->norm = VIDEO_MODE_NTSC;
- decoder->input = 0;
- decoder->enable = 1;
- decoder->bright = 32768;
- decoder->contrast = 32768;
- decoder->hue = 32768;
- decoder->sat = 32768;
- decoder->initialized = 0;
- i2c_set_clientdata(client, decoder);
-
- id = bt819_read(client, 0x17);
- switch (id & 0xf0) {
- case 0x70:
- strlcpy(I2C_NAME(client), "bt819a", sizeof(I2C_NAME(client)));
- break;
- case 0x60:
- strlcpy(I2C_NAME(client), "bt817a", sizeof(I2C_NAME(client)));
- break;
- case 0x20:
- strlcpy(I2C_NAME(client), "bt815a", sizeof(I2C_NAME(client)));
- break;
- default:
- dprintk(1,
- KERN_ERR
- "bt819: unknown chip version 0x%x (ver 0x%x)\n",
- id & 0xf0, id & 0x0f);
- kfree(decoder);
- kfree(client);
- return 0;
- }
-
- i = i2c_attach_client(client);
- if (i) {
- kfree(client);
- kfree(decoder);
- return i;
- }
-
- i = bt819_init(client);
- if (i < 0) {
- dprintk(1, KERN_ERR "%s_attach: init status %d\n",
- I2C_NAME(client), i);
- } else {
- dprintk(1,
- KERN_INFO
- "%s_attach: chip version 0x%x at address 0x%x\n",
- I2C_NAME(client), id & 0x0f,
- client->addr << 1);
- }
-
- return 0;
-}
-
-static int
-bt819_attach_adapter (struct i2c_adapter *adapter)
-{
- return i2c_probe(adapter, &addr_data, &bt819_detect_client);
-}
-
-static int
-bt819_detach_client (struct i2c_client *client)
-{
- struct bt819 *decoder = i2c_get_clientdata(client);
- int err;
-
- err = i2c_detach_client(client);
- if (err) {
- return err;
- }
-
- kfree(decoder);
- kfree(client);
-
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static struct i2c_driver i2c_driver_bt819 = {
- .driver = {
- .name = "bt819",
- },
-
- .id = I2C_DRIVERID_BT819,
-
- .attach_adapter = bt819_attach_adapter,
- .detach_client = bt819_detach_client,
- .command = bt819_command,
-};
-
-static int __init
-bt819_init_module (void)
-{
- return i2c_add_driver(&i2c_driver_bt819);
-}
-
-static void __exit
-bt819_exit (void)
-{
- i2c_del_driver(&i2c_driver_bt819);
-}
-
-module_init(bt819_init_module);
-module_exit(bt819_exit);
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