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Commit 71ef85c7 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (8943): saa5246a: convert i2c driver for new i2c API 

- Convert to use v4l2-i2c-drv-legacy.h to be able to handle the new i2c API
- Cleanups
- Use v4l_dbg/v4l_info to have uniform kernel messages
Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 2633812f
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drivers/media/video/saa5246a.c
View file @ 71ef85c7
...@@ -43,138 +43,363 @@ ...@@ -43,138 +43,363 @@
#include <linux/mm.h> #include <linux/mm.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/i2c.h> #include <linux/i2c.h>
#include <linux/videotext.h>
#include <linux/smp_lock.h> #include <linux/smp_lock.h>
#include <linux/mutex.h>
#include <linux/videotext.h>
#include <linux/videodev.h> #include <linux/videodev.h>
#include <media/v4l2-common.h> #include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h> #include <media/v4l2-ioctl.h>
#include <linux/mutex.h> #include <media/v4l2-i2c-drv-legacy.h>
#include "saa5246a.h"
MODULE_AUTHOR("Michael Geng <linux@MichaelGeng.de>"); MODULE_AUTHOR("Michael Geng <linux@MichaelGeng.de>");
MODULE_DESCRIPTION("Philips SAA5246A, SAA5281 Teletext decoder driver"); MODULE_DESCRIPTION("Philips SAA5246A, SAA5281 Teletext decoder driver");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
struct saa5246a_device #define MAJOR_VERSION 1 /* driver major version number */
{ #define MINOR_VERSION 8 /* driver minor version number */
u8 pgbuf[NUM_DAUS][VTX_VIRTUALSIZE];
int is_searching[NUM_DAUS]; /* Number of DAUs = number of pages that can be searched at the same time. */
struct i2c_client *client; #define NUM_DAUS 4
unsigned long in_use;
struct mutex lock; #define NUM_ROWS_PER_PAGE 40
};
/* first column is 0 (not 1) */
#define POS_TIME_START 32
#define POS_TIME_END 39
#define POS_HEADER_START 7
#define POS_HEADER_END 31
/* Returns 'true' if the part of the videotext page described with req contains
(at least parts of) the time field */
#define REQ_CONTAINS_TIME(p_req) \
((p_req)->start <= POS_TIME_END && \
(p_req)->end >= POS_TIME_START)
/* Returns 'true' if the part of the videotext page described with req contains
(at least parts of) the page header */
#define REQ_CONTAINS_HEADER(p_req) \
((p_req)->start <= POS_HEADER_END && \
(p_req)->end >= POS_HEADER_START)
/*****************************************************************************/
/* Mode register numbers of the SAA5246A */
/*****************************************************************************/
#define SAA5246A_REGISTER_R0 0
#define SAA5246A_REGISTER_R1 1
#define SAA5246A_REGISTER_R2 2
#define SAA5246A_REGISTER_R3 3
#define SAA5246A_REGISTER_R4 4
#define SAA5246A_REGISTER_R5 5
#define SAA5246A_REGISTER_R6 6
#define SAA5246A_REGISTER_R7 7
#define SAA5246A_REGISTER_R8 8
#define SAA5246A_REGISTER_R9 9
#define SAA5246A_REGISTER_R10 10
#define SAA5246A_REGISTER_R11 11
#define SAA5246A_REGISTER_R11B 11
/* SAA5246A mode registers often autoincrement to the next register.
Therefore we use variable argument lists. The following macro indicates
the end of a command list. */
#define COMMAND_END (-1)
/*****************************************************************************/
/* Contents of the mode registers of the SAA5246A */
/*****************************************************************************/
/* Register R0 (Advanced Control) */
#define R0_SELECT_R11 0x00
#define R0_SELECT_R11B 0x01
#define R0_PLL_TIME_CONSTANT_LONG 0x00
#define R0_PLL_TIME_CONSTANT_SHORT 0x02
#define R0_ENABLE_nODD_EVEN_OUTPUT 0x00
#define R0_DISABLE_nODD_EVEN_OUTPUT 0x04
#define R0_ENABLE_HDR_POLL 0x00
#define R0_DISABLE_HDR_POLL 0x10
#define R0_DO_NOT_FORCE_nODD_EVEN_LOW_IF_PICTURE_DISPLAYED 0x00
#define R0_FORCE_nODD_EVEN_LOW_IF_PICTURE_DISPLAYED 0x20
#define R0_NO_FREE_RUN_PLL 0x00
#define R0_FREE_RUN_PLL 0x40
#define R0_NO_AUTOMATIC_FASTEXT_PROMPT 0x00
#define R0_AUTOMATIC_FASTEXT_PROMPT 0x80
/* Register R1 (Mode) */
#define R1_INTERLACED_312_AND_HALF_312_AND_HALF_LINES 0x00
#define R1_NON_INTERLACED_312_313_LINES 0x01
#define R1_NON_INTERLACED_312_312_LINES 0x02
#define R1_FFB_LEADING_EDGE_IN_FIRST_BROAD_PULSE 0x03
#define R1_FFB_LEADING_EDGE_IN_SECOND_BROAD_PULSE 0x07
#define R1_DEW 0x00
#define R1_FULL_FIELD 0x08
#define R1_EXTENDED_PACKET_DISABLE 0x00
#define R1_EXTENDED_PACKET_ENABLE 0x10
#define R1_DAUS_ALL_ON 0x00
#define R1_DAUS_ALL_OFF 0x20
#define R1_7_BITS_PLUS_PARITY 0x00
#define R1_8_BITS_NO_PARITY 0x40
#define R1_VCS_TO_SCS 0x00
#define R1_NO_VCS_TO_SCS 0x80
/* Register R2 (Page request address) */
#define R2_IN_R3_SELECT_PAGE_HUNDREDS 0x00
#define R2_IN_R3_SELECT_PAGE_TENS 0x01
#define R2_IN_R3_SELECT_PAGE_UNITS 0x02
#define R2_IN_R3_SELECT_HOURS_TENS 0x03
#define R2_IN_R3_SELECT_HOURS_UNITS 0x04
#define R2_IN_R3_SELECT_MINUTES_TENS 0x05
#define R2_IN_R3_SELECT_MINUTES_UNITS 0x06
#define R2_DAU_0 0x00
#define R2_DAU_1 0x10
#define R2_DAU_2 0x20
#define R2_DAU_3 0x30
#define R2_BANK_0 0x00
#define R2_BANK 1 0x40
#define R2_HAMMING_CHECK_ON 0x80
#define R2_HAMMING_CHECK_OFF 0x00
/* Register R3 (Page request data) */
#define R3_PAGE_HUNDREDS_0 0x00
#define R3_PAGE_HUNDREDS_1 0x01
#define R3_PAGE_HUNDREDS_2 0x02
#define R3_PAGE_HUNDREDS_3 0x03
#define R3_PAGE_HUNDREDS_4 0x04
#define R3_PAGE_HUNDREDS_5 0x05
#define R3_PAGE_HUNDREDS_6 0x06
#define R3_PAGE_HUNDREDS_7 0x07
static struct video_device saa_template; /* Declared near bottom */ #define R3_HOLD_PAGE 0x00
#define R3_UPDATE_PAGE 0x08
/* Addresses to scan */ #define R3_PAGE_HUNDREDS_DO_NOT_CARE 0x00
static unsigned short normal_i2c[] = { I2C_ADDRESS, I2C_CLIENT_END }; #define R3_PAGE_HUNDREDS_DO_CARE 0x10
I2C_CLIENT_INSMOD; #define R3_PAGE_TENS_DO_NOT_CARE 0x00
#define R3_PAGE_TENS_DO_CARE 0x10
static struct i2c_client client_template; #define R3_PAGE_UNITS_DO_NOT_CARE 0x00
#define R3_PAGE_UNITS_DO_CARE 0x10
static int saa5246a_attach(struct i2c_adapter *adap, int addr, int kind) #define R3_HOURS_TENS_DO_NOT_CARE 0x00
{ #define R3_HOURS_TENS_DO_CARE 0x10
int pgbuf;
int err;
struct i2c_client *client;
struct video_device *vd;
struct saa5246a_device *t;
printk(KERN_INFO "saa5246a: teletext chip found.\n"); #define R3_HOURS_UNITS_DO_NOT_CARE 0x00
client=kmalloc(sizeof(*client), GFP_KERNEL); #define R3_HOURS_UNITS_DO_CARE 0x10
if(client==NULL)
return -ENOMEM;
client_template.adapter = adap;
client_template.addr = addr;
memcpy(client, &client_template, sizeof(*client));
t = kzalloc(sizeof(*t), GFP_KERNEL);
if(t==NULL)
{
kfree(client);
return -ENOMEM;
}
strlcpy(client->name, IF_NAME, I2C_NAME_SIZE);
mutex_init(&t->lock);
/* #define R3_MINUTES_TENS_DO_NOT_CARE 0x00
* Now create a video4linux device #define R3_MINUTES_TENS_DO_CARE 0x10
*/
vd = video_device_alloc(); #define R3_MINUTES_UNITS_DO_NOT_CARE 0x00
if(vd==NULL) #define R3_MINUTES_UNITS_DO_CARE 0x10
{
kfree(t);
kfree(client);
return -ENOMEM;
}
i2c_set_clientdata(client, vd);
memcpy(vd, &saa_template, sizeof(*vd));
for (pgbuf = 0; pgbuf < NUM_DAUS; pgbuf++) /* Register R4 (Display chapter) */
{ #define R4_DISPLAY_PAGE_0 0x00
memset(t->pgbuf[pgbuf], ' ', sizeof(t->pgbuf[0])); #define R4_DISPLAY_PAGE_1 0x01
t->is_searching[pgbuf] = false; #define R4_DISPLAY_PAGE_2 0x02
} #define R4_DISPLAY_PAGE_3 0x03
video_set_drvdata(vd, t); #define R4_DISPLAY_PAGE_4 0x04
#define R4_DISPLAY_PAGE_5 0x05
#define R4_DISPLAY_PAGE_6 0x06
#define R4_DISPLAY_PAGE_7 0x07
/* Register R5 (Normal display control) */
#define R5_PICTURE_INSIDE_BOXING_OFF 0x00
#define R5_PICTURE_INSIDE_BOXING_ON 0x01
/* #define R5_PICTURE_OUTSIDE_BOXING_OFF 0x00
* Register it #define R5_PICTURE_OUTSIDE_BOXING_ON 0x02
*/
if((err=video_register_device(vd, VFL_TYPE_VTX,-1))<0) #define R5_TEXT_INSIDE_BOXING_OFF 0x00
{ #define R5_TEXT_INSIDE_BOXING_ON 0x04
kfree(t);
kfree(client);
video_device_release(vd);
return err;
}
t->client = client;
i2c_attach_client(client);
return 0;
}
/* #define R5_TEXT_OUTSIDE_BOXING_OFF 0x00
* We do most of the hard work when we become a device on the i2c. #define R5_TEXT_OUTSIDE_BOXING_ON 0x08
*/
static int saa5246a_probe(struct i2c_adapter *adap)
{
if (adap->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adap, &addr_data, saa5246a_attach);
return 0;
}
static int saa5246a_detach(struct i2c_client *client) #define R5_CONTRAST_REDUCTION_INSIDE_BOXING_OFF 0x00
{ #define R5_CONTRAST_REDUCTION_INSIDE_BOXING_ON 0x10
struct video_device *vd = i2c_get_clientdata(client);
i2c_detach_client(client); #define R5_CONTRAST_REDUCTION_OUTSIDE_BOXING_OFF 0x00
video_unregister_device(vd); #define R5_CONTRAST_REDUCTION_OUTSIDE_BOXING_ON 0x20
kfree(video_get_drvdata(vd));
kfree(client);
return 0;
}
/* #define R5_BACKGROUND_COLOR_INSIDE_BOXING_OFF 0x00
* I2C interfaces #define R5_BACKGROUND_COLOR_INSIDE_BOXING_ON 0x40
*/
#define R5_BACKGROUND_COLOR_OUTSIDE_BOXING_OFF 0x00
#define R5_BACKGROUND_COLOR_OUTSIDE_BOXING_ON 0x80
/* Register R6 (Newsflash display) */
#define R6_NEWSFLASH_PICTURE_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_PICTURE_INSIDE_BOXING_ON 0x01
#define R6_NEWSFLASH_PICTURE_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_PICTURE_OUTSIDE_BOXING_ON 0x02
#define R6_NEWSFLASH_TEXT_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_TEXT_INSIDE_BOXING_ON 0x04
#define R6_NEWSFLASH_TEXT_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_TEXT_OUTSIDE_BOXING_ON 0x08
#define R6_NEWSFLASH_CONTRAST_REDUCTION_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_CONTRAST_REDUCTION_INSIDE_BOXING_ON 0x10
#define R6_NEWSFLASH_CONTRAST_REDUCTION_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_CONTRAST_REDUCTION_OUTSIDE_BOXING_ON 0x20
#define R6_NEWSFLASH_BACKGROUND_COLOR_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_BACKGROUND_COLOR_INSIDE_BOXING_ON 0x40
#define R6_NEWSFLASH_BACKGROUND_COLOR_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_BACKGROUND_COLOR_OUTSIDE_BOXING_ON 0x80
/* Register R7 (Display mode) */
#define R7_BOX_OFF_ROW_0 0x00
#define R7_BOX_ON_ROW_0 0x01
#define R7_BOX_OFF_ROW_1_TO_23 0x00
#define R7_BOX_ON_ROW_1_TO_23 0x02
#define R7_BOX_OFF_ROW_24 0x00
#define R7_BOX_ON_ROW_24 0x04
#define R7_SINGLE_HEIGHT 0x00
#define R7_DOUBLE_HEIGHT 0x08
#define R7_TOP_HALF 0x00
#define R7_BOTTOM_HALF 0x10
#define R7_REVEAL_OFF 0x00
#define R7_REVEAL_ON 0x20
#define R7_CURSER_OFF 0x00
#define R7_CURSER_ON 0x40
#define R7_STATUS_BOTTOM 0x00
#define R7_STATUS_TOP 0x80
/* Register R8 (Active chapter) */
#define R8_ACTIVE_CHAPTER_0 0x00
#define R8_ACTIVE_CHAPTER_1 0x01
#define R8_ACTIVE_CHAPTER_2 0x02
#define R8_ACTIVE_CHAPTER_3 0x03
#define R8_ACTIVE_CHAPTER_4 0x04
#define R8_ACTIVE_CHAPTER_5 0x05
#define R8_ACTIVE_CHAPTER_6 0x06
#define R8_ACTIVE_CHAPTER_7 0x07
static struct i2c_driver i2c_driver_videotext = #define R8_CLEAR_MEMORY 0x08
#define R8_DO_NOT_CLEAR_MEMORY 0x00
/* Register R9 (Curser row) */
#define R9_CURSER_ROW_0 0x00
#define R9_CURSER_ROW_1 0x01
#define R9_CURSER_ROW_2 0x02
#define R9_CURSER_ROW_25 0x19
/* Register R10 (Curser column) */
#define R10_CURSER_COLUMN_0 0x00
#define R10_CURSER_COLUMN_6 0x06
#define R10_CURSER_COLUMN_8 0x08
/*****************************************************************************/
/* Row 25 control data in column 0 to 9 */
/*****************************************************************************/
#define ROW25_COLUMN0_PAGE_UNITS 0x0F
#define ROW25_COLUMN1_PAGE_TENS 0x0F
#define ROW25_COLUMN2_MINUTES_UNITS 0x0F
#define ROW25_COLUMN3_MINUTES_TENS 0x07
#define ROW25_COLUMN3_DELETE_PAGE 0x08
#define ROW25_COLUMN4_HOUR_UNITS 0x0F
#define ROW25_COLUMN5_HOUR_TENS 0x03
#define ROW25_COLUMN5_INSERT_HEADLINE 0x04
#define ROW25_COLUMN5_INSERT_SUBTITLE 0x08
#define ROW25_COLUMN6_SUPPRESS_HEADER 0x01
#define ROW25_COLUMN6_UPDATE_PAGE 0x02
#define ROW25_COLUMN6_INTERRUPTED_SEQUENCE 0x04
#define ROW25_COLUMN6_SUPPRESS_DISPLAY 0x08
#define ROW25_COLUMN7_SERIAL_MODE 0x01
#define ROW25_COLUMN7_CHARACTER_SET 0x0E
#define ROW25_COLUMN8_PAGE_HUNDREDS 0x07
#define ROW25_COLUMN8_PAGE_NOT_FOUND 0x10
#define ROW25_COLUMN9_PAGE_BEING_LOOKED_FOR 0x20
#define ROW25_COLUMN0_TO_7_HAMMING_ERROR 0x10
/*****************************************************************************/
/* Helper macros for extracting page, hour and minute digits */
/*****************************************************************************/
/* BYTE_POS 0 is at row 0, column 0,
BYTE_POS 1 is at row 0, column 1,
BYTE_POS 40 is at row 1, column 0, (with NUM_ROWS_PER_PAGE = 40)
BYTE_POS 41 is at row 1, column 1, (with NUM_ROWS_PER_PAGE = 40),
... */
#define ROW(BYTE_POS) (BYTE_POS / NUM_ROWS_PER_PAGE)
#define COLUMN(BYTE_POS) (BYTE_POS % NUM_ROWS_PER_PAGE)
/*****************************************************************************/
/* Helper macros for extracting page, hour and minute digits */
/*****************************************************************************/
/* Macros for extracting hundreds, tens and units of a page number which
must be in the range 0 ... 0x799.
Note that page is coded in hexadecimal, i.e. 0x123 means page 123.
page 0x.. means page 8.. */
#define HUNDREDS_OF_PAGE(page) (((page) / 0x100) & 0x7)
#define TENS_OF_PAGE(page) (((page) / 0x10) & 0xF)
#define UNITS_OF_PAGE(page) ((page) & 0xF)
/* Macros for extracting tens and units of a hour information which
must be in the range 0 ... 0x24.
Note that hour is coded in hexadecimal, i.e. 0x12 means 12 hours */
#define TENS_OF_HOUR(hour) ((hour) / 0x10)
#define UNITS_OF_HOUR(hour) ((hour) & 0xF)
/* Macros for extracting tens and units of a minute information which
must be in the range 0 ... 0x59.
Note that minute is coded in hexadecimal, i.e. 0x12 means 12 minutes */
#define TENS_OF_MINUTE(minute) ((minute) / 0x10)
#define UNITS_OF_MINUTE(minute) ((minute) & 0xF)
#define HOUR_MAX 0x23
#define MINUTE_MAX 0x59
#define PAGE_MAX 0x8FF
struct saa5246a_device
{ {
.driver = { u8 pgbuf[NUM_DAUS][VTX_VIRTUALSIZE];
.name = IF_NAME, /* name */ int is_searching[NUM_DAUS];
}, struct i2c_client *client;
.id = I2C_DRIVERID_SAA5249, /* in i2c.h */ unsigned long in_use;
.attach_adapter = saa5246a_probe, struct mutex lock;
.detach_client = saa5246a_detach,
}; };
static struct i2c_client client_template = { static struct video_device saa_template; /* Declared near bottom */
.driver = &i2c_driver_videotext,
.name = "(unset)", /*
}; * I2C interfaces
*/
static int i2c_sendbuf(struct saa5246a_device *t, int reg, int count, u8 *data) static int i2c_sendbuf(struct saa5246a_device *t, int reg, int count, u8 *data)
{ {
...@@ -794,22 +1019,6 @@ static int saa5246a_release(struct inode *inode, struct file *file) ...@@ -794,22 +1019,6 @@ static int saa5246a_release(struct inode *inode, struct file *file)
return 0; return 0;
} }
static int __init init_saa_5246a (void)
{
printk(KERN_INFO
"SAA5246A (or compatible) Teletext decoder driver version %d.%d\n",
MAJOR_VERSION, MINOR_VERSION);
return i2c_add_driver(&i2c_driver_videotext);
}
static void __exit cleanup_saa_5246a (void)
{
i2c_del_driver(&i2c_driver_videotext);
}
module_init(init_saa_5246a);
module_exit(cleanup_saa_5246a);
static const struct file_operations saa_fops = { static const struct file_operations saa_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.open = saa5246a_open, .open = saa5246a_open,
...@@ -820,8 +1029,79 @@ static const struct file_operations saa_fops = { ...@@ -820,8 +1029,79 @@ static const struct file_operations saa_fops = {
static struct video_device saa_template = static struct video_device saa_template =
{ {
.name = IF_NAME, .name = "saa5246a",
.fops = &saa_fops, .fops = &saa_fops,
.release = video_device_release, .release = video_device_release,
.minor = -1, .minor = -1,
}; };
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x22 >> 1, I2C_CLIENT_END };
I2C_CLIENT_INSMOD;
static int saa5246a_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int pgbuf;
int err;
struct video_device *vd;
struct saa5246a_device *t;
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
v4l_info(client, "VideoText version %d.%d\n",
MAJOR_VERSION, MINOR_VERSION);
t = kzalloc(sizeof(*t), GFP_KERNEL);
if (t == NULL)
return -ENOMEM;
mutex_init(&t->lock);
/* Now create a video4linux device */
vd = video_device_alloc();
if (vd == NULL) {
kfree(t);
return -ENOMEM;
}
i2c_set_clientdata(client, vd);
memcpy(vd, &saa_template, sizeof(*vd));
for (pgbuf = 0; pgbuf < NUM_DAUS; pgbuf++) {
memset(t->pgbuf[pgbuf], ' ', sizeof(t->pgbuf[0]));
t->is_searching[pgbuf] = false;
}
video_set_drvdata(vd, t);
/* Register it */
err = video_register_device(vd, VFL_TYPE_VTX, -1);
if (err < 0) {
kfree(t);
video_device_release(vd);
return err;
}
t->client = client;
return 0;
}
static int saa5246a_remove(struct i2c_client *client)
{
struct video_device *vd = i2c_get_clientdata(client);
video_unregister_device(vd);
kfree(video_get_drvdata(vd));
return 0;
}
static const struct i2c_device_id saa5246a_id[] = {
{ "saa5246a", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, saa5246a_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "saa5246a",
.driverid = I2C_DRIVERID_SAA5249,
.probe = saa5246a_probe,
.remove = saa5246a_remove,
.id_table = saa5246a_id,
};
drivers/media/video/saa5246a.h deleted 100644 → 0
View file @ 2633812f
/*
Driver for the SAA5246A or SAA5281 Teletext (=Videotext) decoder chips from
Philips.
Copyright (C) 2004 Michael Geng (linux@MichaelGeng.de)
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.
*/
#ifndef __SAA5246A_H__
#define __SAA5246A_H__
#define MAJOR_VERSION 1 /* driver major version number */
#define MINOR_VERSION 8 /* driver minor version number */
#define IF_NAME "SAA5246A"
#define I2C_ADDRESS 17
/* Number of DAUs = number of pages that can be searched at the same time. */
#define NUM_DAUS 4
#define NUM_ROWS_PER_PAGE 40
/* first column is 0 (not 1) */
#define POS_TIME_START 32
#define POS_TIME_END 39
#define POS_HEADER_START 7
#define POS_HEADER_END 31
/* Returns 'true' if the part of the videotext page described with req contains
(at least parts of) the time field */
#define REQ_CONTAINS_TIME(p_req) \
((p_req)->start <= POS_TIME_END && \
(p_req)->end >= POS_TIME_START)
/* Returns 'true' if the part of the videotext page described with req contains
(at least parts of) the page header */
#define REQ_CONTAINS_HEADER(p_req) \
((p_req)->start <= POS_HEADER_END && \
(p_req)->end >= POS_HEADER_START)
/*****************************************************************************/
/* Mode register numbers of the SAA5246A */
/*****************************************************************************/
#define SAA5246A_REGISTER_R0 0
#define SAA5246A_REGISTER_R1 1
#define SAA5246A_REGISTER_R2 2
#define SAA5246A_REGISTER_R3 3
#define SAA5246A_REGISTER_R4 4
#define SAA5246A_REGISTER_R5 5
#define SAA5246A_REGISTER_R6 6
#define SAA5246A_REGISTER_R7 7
#define SAA5246A_REGISTER_R8 8
#define SAA5246A_REGISTER_R9 9
#define SAA5246A_REGISTER_R10 10
#define SAA5246A_REGISTER_R11 11
#define SAA5246A_REGISTER_R11B 11
/* SAA5246A mode registers often autoincrement to the next register.
Therefore we use variable argument lists. The following macro indicates
the end of a command list. */
#define COMMAND_END (- 1)
/*****************************************************************************/
/* Contents of the mode registers of the SAA5246A */
/*****************************************************************************/
/* Register R0 (Advanced Control) */
#define R0_SELECT_R11 0x00
#define R0_SELECT_R11B 0x01
#define R0_PLL_TIME_CONSTANT_LONG 0x00
#define R0_PLL_TIME_CONSTANT_SHORT 0x02
#define R0_ENABLE_nODD_EVEN_OUTPUT 0x00
#define R0_DISABLE_nODD_EVEN_OUTPUT 0x04
#define R0_ENABLE_HDR_POLL 0x00
#define R0_DISABLE_HDR_POLL 0x10
#define R0_DO_NOT_FORCE_nODD_EVEN_LOW_IF_PICTURE_DISPLAYED 0x00
#define R0_FORCE_nODD_EVEN_LOW_IF_PICTURE_DISPLAYED 0x20
#define R0_NO_FREE_RUN_PLL 0x00
#define R0_FREE_RUN_PLL 0x40
#define R0_NO_AUTOMATIC_FASTEXT_PROMPT 0x00
#define R0_AUTOMATIC_FASTEXT_PROMPT 0x80
/* Register R1 (Mode) */
#define R1_INTERLACED_312_AND_HALF_312_AND_HALF_LINES 0x00
#define R1_NON_INTERLACED_312_313_LINES 0x01
#define R1_NON_INTERLACED_312_312_LINES 0x02
#define R1_FFB_LEADING_EDGE_IN_FIRST_BROAD_PULSE 0x03
#define R1_FFB_LEADING_EDGE_IN_SECOND_BROAD_PULSE 0x07
#define R1_DEW 0x00
#define R1_FULL_FIELD 0x08
#define R1_EXTENDED_PACKET_DISABLE 0x00
#define R1_EXTENDED_PACKET_ENABLE 0x10
#define R1_DAUS_ALL_ON 0x00
#define R1_DAUS_ALL_OFF 0x20
#define R1_7_BITS_PLUS_PARITY 0x00
#define R1_8_BITS_NO_PARITY 0x40
#define R1_VCS_TO_SCS 0x00
#define R1_NO_VCS_TO_SCS 0x80
/* Register R2 (Page request address) */
#define R2_IN_R3_SELECT_PAGE_HUNDREDS 0x00
#define R2_IN_R3_SELECT_PAGE_TENS 0x01
#define R2_IN_R3_SELECT_PAGE_UNITS 0x02
#define R2_IN_R3_SELECT_HOURS_TENS 0x03
#define R2_IN_R3_SELECT_HOURS_UNITS 0x04
#define R2_IN_R3_SELECT_MINUTES_TENS 0x05
#define R2_IN_R3_SELECT_MINUTES_UNITS 0x06
#define R2_DAU_0 0x00
#define R2_DAU_1 0x10
#define R2_DAU_2 0x20
#define R2_DAU_3 0x30
#define R2_BANK_0 0x00
#define R2_BANK 1 0x40
#define R2_HAMMING_CHECK_ON 0x80
#define R2_HAMMING_CHECK_OFF 0x00
/* Register R3 (Page request data) */
#define R3_PAGE_HUNDREDS_0 0x00
#define R3_PAGE_HUNDREDS_1 0x01
#define R3_PAGE_HUNDREDS_2 0x02
#define R3_PAGE_HUNDREDS_3 0x03
#define R3_PAGE_HUNDREDS_4 0x04
#define R3_PAGE_HUNDREDS_5 0x05
#define R3_PAGE_HUNDREDS_6 0x06
#define R3_PAGE_HUNDREDS_7 0x07
#define R3_HOLD_PAGE 0x00
#define R3_UPDATE_PAGE 0x08
#define R3_PAGE_HUNDREDS_DO_NOT_CARE 0x00
#define R3_PAGE_HUNDREDS_DO_CARE 0x10
#define R3_PAGE_TENS_DO_NOT_CARE 0x00
#define R3_PAGE_TENS_DO_CARE 0x10
#define R3_PAGE_UNITS_DO_NOT_CARE 0x00
#define R3_PAGE_UNITS_DO_CARE 0x10
#define R3_HOURS_TENS_DO_NOT_CARE 0x00
#define R3_HOURS_TENS_DO_CARE 0x10
#define R3_HOURS_UNITS_DO_NOT_CARE 0x00
#define R3_HOURS_UNITS_DO_CARE 0x10
#define R3_MINUTES_TENS_DO_NOT_CARE 0x00
#define R3_MINUTES_TENS_DO_CARE 0x10
#define R3_MINUTES_UNITS_DO_NOT_CARE 0x00
#define R3_MINUTES_UNITS_DO_CARE 0x10
/* Register R4 (Display chapter) */
#define R4_DISPLAY_PAGE_0 0x00
#define R4_DISPLAY_PAGE_1 0x01
#define R4_DISPLAY_PAGE_2 0x02
#define R4_DISPLAY_PAGE_3 0x03
#define R4_DISPLAY_PAGE_4 0x04
#define R4_DISPLAY_PAGE_5 0x05
#define R4_DISPLAY_PAGE_6 0x06
#define R4_DISPLAY_PAGE_7 0x07
/* Register R5 (Normal display control) */
#define R5_PICTURE_INSIDE_BOXING_OFF 0x00
#define R5_PICTURE_INSIDE_BOXING_ON 0x01
#define R5_PICTURE_OUTSIDE_BOXING_OFF 0x00
#define R5_PICTURE_OUTSIDE_BOXING_ON 0x02
#define R5_TEXT_INSIDE_BOXING_OFF 0x00
#define R5_TEXT_INSIDE_BOXING_ON 0x04
#define R5_TEXT_OUTSIDE_BOXING_OFF 0x00
#define R5_TEXT_OUTSIDE_BOXING_ON 0x08
#define R5_CONTRAST_REDUCTION_INSIDE_BOXING_OFF 0x00
#define R5_CONTRAST_REDUCTION_INSIDE_BOXING_ON 0x10
#define R5_CONTRAST_REDUCTION_OUTSIDE_BOXING_OFF 0x00
#define R5_CONTRAST_REDUCTION_OUTSIDE_BOXING_ON 0x20
#define R5_BACKGROUND_COLOR_INSIDE_BOXING_OFF 0x00
#define R5_BACKGROUND_COLOR_INSIDE_BOXING_ON 0x40
#define R5_BACKGROUND_COLOR_OUTSIDE_BOXING_OFF 0x00
#define R5_BACKGROUND_COLOR_OUTSIDE_BOXING_ON 0x80
/* Register R6 (Newsflash display) */
#define R6_NEWSFLASH_PICTURE_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_PICTURE_INSIDE_BOXING_ON 0x01
#define R6_NEWSFLASH_PICTURE_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_PICTURE_OUTSIDE_BOXING_ON 0x02
#define R6_NEWSFLASH_TEXT_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_TEXT_INSIDE_BOXING_ON 0x04
#define R6_NEWSFLASH_TEXT_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_TEXT_OUTSIDE_BOXING_ON 0x08
#define R6_NEWSFLASH_CONTRAST_REDUCTION_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_CONTRAST_REDUCTION_INSIDE_BOXING_ON 0x10
#define R6_NEWSFLASH_CONTRAST_REDUCTION_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_CONTRAST_REDUCTION_OUTSIDE_BOXING_ON 0x20
#define R6_NEWSFLASH_BACKGROUND_COLOR_INSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_BACKGROUND_COLOR_INSIDE_BOXING_ON 0x40
#define R6_NEWSFLASH_BACKGROUND_COLOR_OUTSIDE_BOXING_OFF 0x00
#define R6_NEWSFLASH_BACKGROUND_COLOR_OUTSIDE_BOXING_ON 0x80
/* Register R7 (Display mode) */
#define R7_BOX_OFF_ROW_0 0x00
#define R7_BOX_ON_ROW_0 0x01
#define R7_BOX_OFF_ROW_1_TO_23 0x00
#define R7_BOX_ON_ROW_1_TO_23 0x02
#define R7_BOX_OFF_ROW_24 0x00
#define R7_BOX_ON_ROW_24 0x04
#define R7_SINGLE_HEIGHT 0x00
#define R7_DOUBLE_HEIGHT 0x08
#define R7_TOP_HALF 0x00
#define R7_BOTTOM_HALF 0x10
#define R7_REVEAL_OFF 0x00
#define R7_REVEAL_ON 0x20
#define R7_CURSER_OFF 0x00
#define R7_CURSER_ON 0x40
#define R7_STATUS_BOTTOM 0x00
#define R7_STATUS_TOP 0x80
/* Register R8 (Active chapter) */
#define R8_ACTIVE_CHAPTER_0 0x00
#define R8_ACTIVE_CHAPTER_1 0x01
#define R8_ACTIVE_CHAPTER_2 0x02
#define R8_ACTIVE_CHAPTER_3 0x03
#define R8_ACTIVE_CHAPTER_4 0x04
#define R8_ACTIVE_CHAPTER_5 0x05
#define R8_ACTIVE_CHAPTER_6 0x06
#define R8_ACTIVE_CHAPTER_7 0x07
#define R8_CLEAR_MEMORY 0x08
#define R8_DO_NOT_CLEAR_MEMORY 0x00
/* Register R9 (Curser row) */
#define R9_CURSER_ROW_0 0x00
#define R9_CURSER_ROW_1 0x01
#define R9_CURSER_ROW_2 0x02
#define R9_CURSER_ROW_25 0x19
/* Register R10 (Curser column) */
#define R10_CURSER_COLUMN_0 0x00
#define R10_CURSER_COLUMN_6 0x06
#define R10_CURSER_COLUMN_8 0x08
/*****************************************************************************/
/* Row 25 control data in column 0 to 9 */
/*****************************************************************************/
#define ROW25_COLUMN0_PAGE_UNITS 0x0F
#define ROW25_COLUMN1_PAGE_TENS 0x0F
#define ROW25_COLUMN2_MINUTES_UNITS 0x0F
#define ROW25_COLUMN3_MINUTES_TENS 0x07
#define ROW25_COLUMN3_DELETE_PAGE 0x08
#define ROW25_COLUMN4_HOUR_UNITS 0x0F
#define ROW25_COLUMN5_HOUR_TENS 0x03
#define ROW25_COLUMN5_INSERT_HEADLINE 0x04
#define ROW25_COLUMN5_INSERT_SUBTITLE 0x08
#define ROW25_COLUMN6_SUPPRESS_HEADER 0x01
#define ROW25_COLUMN6_UPDATE_PAGE 0x02
#define ROW25_COLUMN6_INTERRUPTED_SEQUENCE 0x04
#define ROW25_COLUMN6_SUPPRESS_DISPLAY 0x08
#define ROW25_COLUMN7_SERIAL_MODE 0x01
#define ROW25_COLUMN7_CHARACTER_SET 0x0E
#define ROW25_COLUMN8_PAGE_HUNDREDS 0x07
#define ROW25_COLUMN8_PAGE_NOT_FOUND 0x10
#define ROW25_COLUMN9_PAGE_BEING_LOOKED_FOR 0x20
#define ROW25_COLUMN0_TO_7_HAMMING_ERROR 0x10
/*****************************************************************************/
/* Helper macros for extracting page, hour and minute digits */
/*****************************************************************************/
/* BYTE_POS 0 is at row 0, column 0,
BYTE_POS 1 is at row 0, column 1,
BYTE_POS 40 is at row 1, column 0, (with NUM_ROWS_PER_PAGE = 40)
BYTE_POS 41 is at row 1, column 1, (with NUM_ROWS_PER_PAGE = 40),
... */
#define ROW(BYTE_POS) (BYTE_POS / NUM_ROWS_PER_PAGE)
#define COLUMN(BYTE_POS) (BYTE_POS % NUM_ROWS_PER_PAGE)
/*****************************************************************************/
/* Helper macros for extracting page, hour and minute digits */
/*****************************************************************************/
/* Macros for extracting hundreds, tens and units of a page number which
must be in the range 0 ... 0x799.
Note that page is coded in hexadecimal, i.e. 0x123 means page 123.
page 0x.. means page 8.. */
#define HUNDREDS_OF_PAGE(page) (((page) / 0x100) & 0x7)
#define TENS_OF_PAGE(page) (((page) / 0x10) & 0xF)
#define UNITS_OF_PAGE(page) ((page) & 0xF)
/* Macros for extracting tens and units of a hour information which
must be in the range 0 ... 0x24.
Note that hour is coded in hexadecimal, i.e. 0x12 means 12 hours */
#define TENS_OF_HOUR(hour) ((hour) / 0x10)
#define UNITS_OF_HOUR(hour) ((hour) & 0xF)
/* Macros for extracting tens and units of a minute information which
must be in the range 0 ... 0x59.
Note that minute is coded in hexadecimal, i.e. 0x12 means 12 minutes */
#define TENS_OF_MINUTE(minute) ((minute) / 0x10)
#define UNITS_OF_MINUTE(minute) ((minute) & 0xF)
#define HOUR_MAX 0x23
#define MINUTE_MAX 0x59
#define PAGE_MAX 0x8FF
#endif /* __SAA5246A_H__ */
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