diff options
Diffstat (limited to 'drivers/media/video/adv7175.c')
| -rw-r--r-- | drivers/media/video/adv7175.c | 534 |
1 files changed, 0 insertions, 534 deletions
diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c deleted file mode 100644 index 8ee07a68f70..00000000000 --- a/drivers/media/video/adv7175.c +++ /dev/null @@ -1,534 +0,0 @@ -/* - * adv7175 - adv7175a video encoder driver version 0.0.3 - * - * Copyright (C) 1998 Dave Perks <dperks@ibm.net> - * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> - * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> - * - some corrections for Pinnacle Systems Inc. DC10plus card. - * - * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> - * - moved over to linux>=2.4.x i2c protocol (9/9/2002) - * - * 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_encoder.h> - -MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver"); -MODULE_AUTHOR("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 adv7175 { - int norm; - int input; - int enable; - int bright; - int contrast; - int hue; - int sat; -}; - -#define I2C_ADV7175 0xd4 -#define I2C_ADV7176 0x54 - -static char adv7175_name[] = "adv7175"; -static char adv7176_name[] = "adv7176"; - -static char *inputs[] = { "pass_through", "play_back", "color_bar" }; -static char *norms[] = { "PAL", "NTSC", "SECAM->PAL (may not work!)" }; - -/* ----------------------------------------------------------------------- */ - -static inline int -adv7175_write (struct i2c_client *client, - u8 reg, - u8 value) -{ - return i2c_smbus_write_byte_data(client, reg, value); -} - -static inline int -adv7175_read (struct i2c_client *client, - u8 reg) -{ - return i2c_smbus_read_byte_data(client, reg); -} - -static int -adv7175_write_block (struct i2c_client *client, - const u8 *data, - unsigned int len) -{ - int ret = -1; - u8 reg; - - /* the adv7175 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 */ - 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++] = data[1]; - reg++; - 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 = adv7175_write(client, reg, - *data++)) < 0) - break; - len -= 2; - } - } - - return ret; -} - -static void -set_subcarrier_freq (struct i2c_client *client, - int pass_through) -{ - /* for some reason pass_through NTSC needs - * a different sub-carrier freq to remain stable. */ - if(pass_through) - adv7175_write(client, 0x02, 0x00); - else - adv7175_write(client, 0x02, 0x55); - - adv7175_write(client, 0x03, 0x55); - adv7175_write(client, 0x04, 0x55); - adv7175_write(client, 0x05, 0x25); -} - -/* ----------------------------------------------------------------------- */ -// Output filter: S-Video Composite - -#define MR050 0x11 //0x09 -#define MR060 0x14 //0x0c - -//--------------------------------------------------------------------------- - -#define TR0MODE 0x46 -#define TR0RST 0x80 - -#define TR1CAPT 0x80 -#define TR1PLAY 0x00 - -static const unsigned char init_common[] = { - - 0x00, MR050, /* MR0, PAL enabled */ - 0x01, 0x00, /* MR1 */ - 0x02, 0x0c, /* subc. freq. */ - 0x03, 0x8c, /* subc. freq. */ - 0x04, 0x79, /* subc. freq. */ - 0x05, 0x26, /* subc. freq. */ - 0x06, 0x40, /* subc. phase */ - - 0x07, TR0MODE, /* TR0, 16bit */ - 0x08, 0x21, /* */ - 0x09, 0x00, /* */ - 0x0a, 0x00, /* */ - 0x0b, 0x00, /* */ - 0x0c, TR1CAPT, /* TR1 */ - 0x0d, 0x4f, /* MR2 */ - 0x0e, 0x00, /* */ - 0x0f, 0x00, /* */ - 0x10, 0x00, /* */ - 0x11, 0x00, /* */ -}; - -static const unsigned char init_pal[] = { - 0x00, MR050, /* MR0, PAL enabled */ - 0x01, 0x00, /* MR1 */ - 0x02, 0x0c, /* subc. freq. */ - 0x03, 0x8c, /* subc. freq. */ - 0x04, 0x79, /* subc. freq. */ - 0x05, 0x26, /* subc. freq. */ - 0x06, 0x40, /* subc. phase */ -}; - -static const unsigned char init_ntsc[] = { - 0x00, MR060, /* MR0, NTSC enabled */ - 0x01, 0x00, /* MR1 */ - 0x02, 0x55, /* subc. freq. */ - 0x03, 0x55, /* subc. freq. */ - 0x04, 0x55, /* subc. freq. */ - 0x05, 0x25, /* subc. freq. */ - 0x06, 0x1a, /* subc. phase */ -}; - -static int -adv7175_command (struct i2c_client *client, - unsigned int cmd, - void *arg) -{ - struct adv7175 *encoder = i2c_get_clientdata(client); - - switch (cmd) { - - case 0: - /* This is just for testing!!! */ - adv7175_write_block(client, init_common, - sizeof(init_common)); - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - break; - - case ENCODER_GET_CAPABILITIES: - { - struct video_encoder_capability *cap = arg; - - cap->flags = VIDEO_ENCODER_PAL | - VIDEO_ENCODER_NTSC | - VIDEO_ENCODER_SECAM; /* well, hacky */ - cap->inputs = 2; - cap->outputs = 1; - } - break; - - case ENCODER_SET_NORM: - { - int iarg = *(int *) arg; - - switch (iarg) { - - case VIDEO_MODE_NTSC: - adv7175_write_block(client, init_ntsc, - sizeof(init_ntsc)); - if (encoder->input == 0) - adv7175_write(client, 0x0d, 0x4f); // Enable genlock - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - break; - - case VIDEO_MODE_PAL: - adv7175_write_block(client, init_pal, - sizeof(init_pal)); - if (encoder->input == 0) - adv7175_write(client, 0x0d, 0x4f); // Enable genlock - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - break; - - case VIDEO_MODE_SECAM: // WARNING! ADV7176 does not support SECAM. - /* This is an attempt to convert - * SECAM->PAL (typically it does not work - * due to genlock: when decoder is in SECAM - * and encoder in in PAL the subcarrier can - * not be syncronized with horizontal - * quency) */ - adv7175_write_block(client, init_pal, - sizeof(init_pal)); - if (encoder->input == 0) - adv7175_write(client, 0x0d, 0x49); // Disable genlock - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - break; - default: - dprintk(1, KERN_ERR "%s: illegal norm: %d\n", - I2C_NAME(client), iarg); - return -EINVAL; - - } - dprintk(1, KERN_INFO "%s: switched to %s\n", I2C_NAME(client), - norms[iarg]); - encoder->norm = iarg; - } - break; - - case ENCODER_SET_INPUT: - { - int iarg = *(int *) arg; - - /* RJ: *iarg = 0: input is from SAA7110 - *iarg = 1: input is from ZR36060 - *iarg = 2: color bar */ - - switch (iarg) { - - case 0: - adv7175_write(client, 0x01, 0x00); - - if (encoder->norm == VIDEO_MODE_NTSC) - set_subcarrier_freq(client, 1); - - adv7175_write(client, 0x0c, TR1CAPT); /* TR1 */ - if (encoder->norm == VIDEO_MODE_SECAM) - adv7175_write(client, 0x0d, 0x49); // Disable genlock - else - adv7175_write(client, 0x0d, 0x4f); // Enable genlock - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - //udelay(10); - break; - - case 1: - adv7175_write(client, 0x01, 0x00); - - if (encoder->norm == VIDEO_MODE_NTSC) - set_subcarrier_freq(client, 0); - - adv7175_write(client, 0x0c, TR1PLAY); /* TR1 */ - adv7175_write(client, 0x0d, 0x49); - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - //udelay(10); - break; - - case 2: - adv7175_write(client, 0x01, 0x80); - - if (encoder->norm == VIDEO_MODE_NTSC) - set_subcarrier_freq(client, 0); - - adv7175_write(client, 0x0d, 0x49); - adv7175_write(client, 0x07, TR0MODE | TR0RST); - adv7175_write(client, 0x07, TR0MODE); - //udelay(10); - break; - - default: - dprintk(1, KERN_ERR "%s: illegal input: %d\n", - I2C_NAME(client), iarg); - return -EINVAL; - - } - dprintk(1, KERN_INFO "%s: switched to %s\n", I2C_NAME(client), - inputs[iarg]); - encoder->input = iarg; - } - break; - - case ENCODER_SET_OUTPUT: - { - int *iarg = arg; - - /* not much choice of outputs */ - if (*iarg != 0) { - return -EINVAL; - } - } - break; - - case ENCODER_ENABLE_OUTPUT: - { - int *iarg = arg; - - encoder->enable = !!*iarg; - } - 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_ADV7175 >> 1, (I2C_ADV7175 >> 1) + 1, - I2C_ADV7176 >> 1, (I2C_ADV7176 >> 1) + 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_adv7175; - -static int -adv7175_detect_client (struct i2c_adapter *adapter, - int address, - int kind) -{ - int i; - struct i2c_client *client; - struct adv7175 *encoder; - char *dname; - - dprintk(1, - KERN_INFO - "adv7175.c: detecting adv7175 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_adv7175; - if ((client->addr == I2C_ADV7175 >> 1) || - (client->addr == (I2C_ADV7175 >> 1) + 1)) { - dname = adv7175_name; - } else if ((client->addr == I2C_ADV7176 >> 1) || - (client->addr == (I2C_ADV7176 >> 1) + 1)) { - dname = adv7176_name; - } else { - /* We should never get here!!! */ - kfree(client); - return 0; - } - strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client))); - - encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL); - if (encoder == NULL) { - kfree(client); - return -ENOMEM; - } - encoder->norm = VIDEO_MODE_PAL; - encoder->input = 0; - encoder->enable = 1; - i2c_set_clientdata(client, encoder); - - i = i2c_attach_client(client); - if (i) { - kfree(client); - kfree(encoder); - return i; - } - - i = adv7175_write_block(client, init_common, sizeof(init_common)); - if (i >= 0) { - i = adv7175_write(client, 0x07, TR0MODE | TR0RST); - i = adv7175_write(client, 0x07, TR0MODE); - i = adv7175_read(client, 0x12); - dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%x\n", - I2C_NAME(client), i & 1, client->addr << 1); - } - if (i < 0) { - dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n", - I2C_NAME(client), i); - } - - return 0; -} - -static int -adv7175_attach_adapter (struct i2c_adapter *adapter) -{ - dprintk(1, - KERN_INFO - "adv7175.c: starting probe for adapter %s (0x%x)\n", - I2C_NAME(adapter), adapter->id); - return i2c_probe(adapter, &addr_data, &adv7175_detect_client); -} - -static int -adv7175_detach_client (struct i2c_client *client) -{ - struct adv7175 *encoder = i2c_get_clientdata(client); - int err; - - err = i2c_detach_client(client); - if (err) { - return err; - } - - kfree(encoder); - kfree(client); - - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static struct i2c_driver i2c_driver_adv7175 = { - .driver = { - .name = "adv7175", /* name */ - }, - - .id = I2C_DRIVERID_ADV7175, - - .attach_adapter = adv7175_attach_adapter, - .detach_client = adv7175_detach_client, - .command = adv7175_command, -}; - -static int __init -adv7175_init (void) -{ - return i2c_add_driver(&i2c_driver_adv7175); -} - -static void __exit -adv7175_exit (void) -{ - i2c_del_driver(&i2c_driver_adv7175); -} - -module_init(adv7175_init); -module_exit(adv7175_exit); |