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: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
2633812f89
commit
71ef85c7e0
@ -43,19 +43,349 @@
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/i2c.h>
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#include <linux/videotext.h>
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#include <linux/smp_lock.h>
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#include <linux/mutex.h>
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#include <linux/videotext.h>
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#include <linux/videodev.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/mutex.h>
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#include "saa5246a.h"
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#include <media/v4l2-i2c-drv-legacy.h>
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MODULE_AUTHOR("Michael Geng <linux@MichaelGeng.de>");
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MODULE_DESCRIPTION("Philips SAA5246A, SAA5281 Teletext decoder driver");
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MODULE_LICENSE("GPL");
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#define MAJOR_VERSION 1 /* driver major version number */
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#define MINOR_VERSION 8 /* driver minor version number */
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/* Number of DAUs = number of pages that can be searched at the same time. */
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#define NUM_DAUS 4
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#define NUM_ROWS_PER_PAGE 40
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/* first column is 0 (not 1) */
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#define POS_TIME_START 32
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#define POS_TIME_END 39
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#define POS_HEADER_START 7
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#define POS_HEADER_END 31
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/* Returns 'true' if the part of the videotext page described with req contains
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(at least parts of) the time field */
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#define REQ_CONTAINS_TIME(p_req) \
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((p_req)->start <= POS_TIME_END && \
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(p_req)->end >= POS_TIME_START)
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/* Returns 'true' if the part of the videotext page described with req contains
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(at least parts of) the page header */
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#define REQ_CONTAINS_HEADER(p_req) \
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((p_req)->start <= POS_HEADER_END && \
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(p_req)->end >= POS_HEADER_START)
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/*****************************************************************************/
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/* Mode register numbers of the SAA5246A */
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/*****************************************************************************/
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#define SAA5246A_REGISTER_R0 0
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#define SAA5246A_REGISTER_R1 1
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#define SAA5246A_REGISTER_R2 2
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#define SAA5246A_REGISTER_R3 3
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#define SAA5246A_REGISTER_R4 4
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#define SAA5246A_REGISTER_R5 5
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#define SAA5246A_REGISTER_R6 6
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#define SAA5246A_REGISTER_R7 7
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#define SAA5246A_REGISTER_R8 8
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#define SAA5246A_REGISTER_R9 9
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#define SAA5246A_REGISTER_R10 10
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#define SAA5246A_REGISTER_R11 11
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#define SAA5246A_REGISTER_R11B 11
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/* SAA5246A mode registers often autoincrement to the next register.
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Therefore we use variable argument lists. The following macro indicates
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the end of a command list. */
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#define COMMAND_END (-1)
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/*****************************************************************************/
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/* Contents of the mode registers of the SAA5246A */
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/*****************************************************************************/
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/* Register R0 (Advanced Control) */
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#define R0_SELECT_R11 0x00
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#define R0_SELECT_R11B 0x01
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#define R0_PLL_TIME_CONSTANT_LONG 0x00
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#define R0_PLL_TIME_CONSTANT_SHORT 0x02
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#define R0_ENABLE_nODD_EVEN_OUTPUT 0x00
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#define R0_DISABLE_nODD_EVEN_OUTPUT 0x04
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#define R0_ENABLE_HDR_POLL 0x00
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#define R0_DISABLE_HDR_POLL 0x10
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#define R0_DO_NOT_FORCE_nODD_EVEN_LOW_IF_PICTURE_DISPLAYED 0x00
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#define R0_FORCE_nODD_EVEN_LOW_IF_PICTURE_DISPLAYED 0x20
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#define R0_NO_FREE_RUN_PLL 0x00
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#define R0_FREE_RUN_PLL 0x40
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#define R0_NO_AUTOMATIC_FASTEXT_PROMPT 0x00
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#define R0_AUTOMATIC_FASTEXT_PROMPT 0x80
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/* Register R1 (Mode) */
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#define R1_INTERLACED_312_AND_HALF_312_AND_HALF_LINES 0x00
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#define R1_NON_INTERLACED_312_313_LINES 0x01
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#define R1_NON_INTERLACED_312_312_LINES 0x02
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#define R1_FFB_LEADING_EDGE_IN_FIRST_BROAD_PULSE 0x03
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#define R1_FFB_LEADING_EDGE_IN_SECOND_BROAD_PULSE 0x07
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#define R1_DEW 0x00
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#define R1_FULL_FIELD 0x08
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#define R1_EXTENDED_PACKET_DISABLE 0x00
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#define R1_EXTENDED_PACKET_ENABLE 0x10
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#define R1_DAUS_ALL_ON 0x00
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#define R1_DAUS_ALL_OFF 0x20
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#define R1_7_BITS_PLUS_PARITY 0x00
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#define R1_8_BITS_NO_PARITY 0x40
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#define R1_VCS_TO_SCS 0x00
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#define R1_NO_VCS_TO_SCS 0x80
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/* Register R2 (Page request address) */
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#define R2_IN_R3_SELECT_PAGE_HUNDREDS 0x00
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#define R2_IN_R3_SELECT_PAGE_TENS 0x01
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#define R2_IN_R3_SELECT_PAGE_UNITS 0x02
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#define R2_IN_R3_SELECT_HOURS_TENS 0x03
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#define R2_IN_R3_SELECT_HOURS_UNITS 0x04
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#define R2_IN_R3_SELECT_MINUTES_TENS 0x05
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#define R2_IN_R3_SELECT_MINUTES_UNITS 0x06
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#define R2_DAU_0 0x00
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#define R2_DAU_1 0x10
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#define R2_DAU_2 0x20
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#define R2_DAU_3 0x30
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#define R2_BANK_0 0x00
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#define R2_BANK 1 0x40
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#define R2_HAMMING_CHECK_ON 0x80
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#define R2_HAMMING_CHECK_OFF 0x00
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/* Register R3 (Page request data) */
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#define R3_PAGE_HUNDREDS_0 0x00
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#define R3_PAGE_HUNDREDS_1 0x01
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#define R3_PAGE_HUNDREDS_2 0x02
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#define R3_PAGE_HUNDREDS_3 0x03
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#define R3_PAGE_HUNDREDS_4 0x04
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#define R3_PAGE_HUNDREDS_5 0x05
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#define R3_PAGE_HUNDREDS_6 0x06
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#define R3_PAGE_HUNDREDS_7 0x07
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#define R3_HOLD_PAGE 0x00
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#define R3_UPDATE_PAGE 0x08
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#define R3_PAGE_HUNDREDS_DO_NOT_CARE 0x00
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#define R3_PAGE_HUNDREDS_DO_CARE 0x10
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#define R3_PAGE_TENS_DO_NOT_CARE 0x00
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#define R3_PAGE_TENS_DO_CARE 0x10
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#define R3_PAGE_UNITS_DO_NOT_CARE 0x00
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#define R3_PAGE_UNITS_DO_CARE 0x10
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#define R3_HOURS_TENS_DO_NOT_CARE 0x00
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#define R3_HOURS_TENS_DO_CARE 0x10
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#define R3_HOURS_UNITS_DO_NOT_CARE 0x00
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#define R3_HOURS_UNITS_DO_CARE 0x10
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#define R3_MINUTES_TENS_DO_NOT_CARE 0x00
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#define R3_MINUTES_TENS_DO_CARE 0x10
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#define R3_MINUTES_UNITS_DO_NOT_CARE 0x00
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#define R3_MINUTES_UNITS_DO_CARE 0x10
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/* Register R4 (Display chapter) */
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#define R4_DISPLAY_PAGE_0 0x00
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#define R4_DISPLAY_PAGE_1 0x01
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#define R4_DISPLAY_PAGE_2 0x02
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#define R4_DISPLAY_PAGE_3 0x03
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#define R4_DISPLAY_PAGE_4 0x04
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#define R4_DISPLAY_PAGE_5 0x05
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#define R4_DISPLAY_PAGE_6 0x06
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#define R4_DISPLAY_PAGE_7 0x07
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/* Register R5 (Normal display control) */
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#define R5_PICTURE_INSIDE_BOXING_OFF 0x00
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#define R5_PICTURE_INSIDE_BOXING_ON 0x01
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#define R5_PICTURE_OUTSIDE_BOXING_OFF 0x00
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#define R5_PICTURE_OUTSIDE_BOXING_ON 0x02
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#define R5_TEXT_INSIDE_BOXING_OFF 0x00
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#define R5_TEXT_INSIDE_BOXING_ON 0x04
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#define R5_TEXT_OUTSIDE_BOXING_OFF 0x00
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#define R5_TEXT_OUTSIDE_BOXING_ON 0x08
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#define R5_CONTRAST_REDUCTION_INSIDE_BOXING_OFF 0x00
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#define R5_CONTRAST_REDUCTION_INSIDE_BOXING_ON 0x10
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#define R5_CONTRAST_REDUCTION_OUTSIDE_BOXING_OFF 0x00
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#define R5_CONTRAST_REDUCTION_OUTSIDE_BOXING_ON 0x20
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#define R5_BACKGROUND_COLOR_INSIDE_BOXING_OFF 0x00
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#define R5_BACKGROUND_COLOR_INSIDE_BOXING_ON 0x40
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#define R5_BACKGROUND_COLOR_OUTSIDE_BOXING_OFF 0x00
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#define R5_BACKGROUND_COLOR_OUTSIDE_BOXING_ON 0x80
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/* Register R6 (Newsflash display) */
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#define R6_NEWSFLASH_PICTURE_INSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_PICTURE_INSIDE_BOXING_ON 0x01
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#define R6_NEWSFLASH_PICTURE_OUTSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_PICTURE_OUTSIDE_BOXING_ON 0x02
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#define R6_NEWSFLASH_TEXT_INSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_TEXT_INSIDE_BOXING_ON 0x04
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#define R6_NEWSFLASH_TEXT_OUTSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_TEXT_OUTSIDE_BOXING_ON 0x08
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#define R6_NEWSFLASH_CONTRAST_REDUCTION_INSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_CONTRAST_REDUCTION_INSIDE_BOXING_ON 0x10
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#define R6_NEWSFLASH_CONTRAST_REDUCTION_OUTSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_CONTRAST_REDUCTION_OUTSIDE_BOXING_ON 0x20
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#define R6_NEWSFLASH_BACKGROUND_COLOR_INSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_BACKGROUND_COLOR_INSIDE_BOXING_ON 0x40
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#define R6_NEWSFLASH_BACKGROUND_COLOR_OUTSIDE_BOXING_OFF 0x00
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#define R6_NEWSFLASH_BACKGROUND_COLOR_OUTSIDE_BOXING_ON 0x80
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/* Register R7 (Display mode) */
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#define R7_BOX_OFF_ROW_0 0x00
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#define R7_BOX_ON_ROW_0 0x01
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#define R7_BOX_OFF_ROW_1_TO_23 0x00
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#define R7_BOX_ON_ROW_1_TO_23 0x02
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#define R7_BOX_OFF_ROW_24 0x00
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#define R7_BOX_ON_ROW_24 0x04
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#define R7_SINGLE_HEIGHT 0x00
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#define R7_DOUBLE_HEIGHT 0x08
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#define R7_TOP_HALF 0x00
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#define R7_BOTTOM_HALF 0x10
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#define R7_REVEAL_OFF 0x00
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#define R7_REVEAL_ON 0x20
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#define R7_CURSER_OFF 0x00
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#define R7_CURSER_ON 0x40
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#define R7_STATUS_BOTTOM 0x00
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#define R7_STATUS_TOP 0x80
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/* Register R8 (Active chapter) */
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#define R8_ACTIVE_CHAPTER_0 0x00
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#define R8_ACTIVE_CHAPTER_1 0x01
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#define R8_ACTIVE_CHAPTER_2 0x02
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#define R8_ACTIVE_CHAPTER_3 0x03
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#define R8_ACTIVE_CHAPTER_4 0x04
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#define R8_ACTIVE_CHAPTER_5 0x05
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#define R8_ACTIVE_CHAPTER_6 0x06
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#define R8_ACTIVE_CHAPTER_7 0x07
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#define R8_CLEAR_MEMORY 0x08
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#define R8_DO_NOT_CLEAR_MEMORY 0x00
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/* Register R9 (Curser row) */
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#define R9_CURSER_ROW_0 0x00
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#define R9_CURSER_ROW_1 0x01
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#define R9_CURSER_ROW_2 0x02
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#define R9_CURSER_ROW_25 0x19
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/* Register R10 (Curser column) */
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#define R10_CURSER_COLUMN_0 0x00
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#define R10_CURSER_COLUMN_6 0x06
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#define R10_CURSER_COLUMN_8 0x08
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/*****************************************************************************/
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/* Row 25 control data in column 0 to 9 */
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/*****************************************************************************/
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#define ROW25_COLUMN0_PAGE_UNITS 0x0F
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#define ROW25_COLUMN1_PAGE_TENS 0x0F
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#define ROW25_COLUMN2_MINUTES_UNITS 0x0F
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#define ROW25_COLUMN3_MINUTES_TENS 0x07
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#define ROW25_COLUMN3_DELETE_PAGE 0x08
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#define ROW25_COLUMN4_HOUR_UNITS 0x0F
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#define ROW25_COLUMN5_HOUR_TENS 0x03
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#define ROW25_COLUMN5_INSERT_HEADLINE 0x04
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#define ROW25_COLUMN5_INSERT_SUBTITLE 0x08
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#define ROW25_COLUMN6_SUPPRESS_HEADER 0x01
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#define ROW25_COLUMN6_UPDATE_PAGE 0x02
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#define ROW25_COLUMN6_INTERRUPTED_SEQUENCE 0x04
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#define ROW25_COLUMN6_SUPPRESS_DISPLAY 0x08
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#define ROW25_COLUMN7_SERIAL_MODE 0x01
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#define ROW25_COLUMN7_CHARACTER_SET 0x0E
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#define ROW25_COLUMN8_PAGE_HUNDREDS 0x07
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#define ROW25_COLUMN8_PAGE_NOT_FOUND 0x10
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#define ROW25_COLUMN9_PAGE_BEING_LOOKED_FOR 0x20
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#define ROW25_COLUMN0_TO_7_HAMMING_ERROR 0x10
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/*****************************************************************************/
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/* Helper macros for extracting page, hour and minute digits */
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/*****************************************************************************/
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/* BYTE_POS 0 is at row 0, column 0,
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BYTE_POS 1 is at row 0, column 1,
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BYTE_POS 40 is at row 1, column 0, (with NUM_ROWS_PER_PAGE = 40)
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BYTE_POS 41 is at row 1, column 1, (with NUM_ROWS_PER_PAGE = 40),
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... */
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#define ROW(BYTE_POS) (BYTE_POS / NUM_ROWS_PER_PAGE)
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#define COLUMN(BYTE_POS) (BYTE_POS % NUM_ROWS_PER_PAGE)
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/*****************************************************************************/
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/* Helper macros for extracting page, hour and minute digits */
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/*****************************************************************************/
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/* Macros for extracting hundreds, tens and units of a page number which
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must be in the range 0 ... 0x799.
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Note that page is coded in hexadecimal, i.e. 0x123 means page 123.
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page 0x.. means page 8.. */
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#define HUNDREDS_OF_PAGE(page) (((page) / 0x100) & 0x7)
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#define TENS_OF_PAGE(page) (((page) / 0x10) & 0xF)
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#define UNITS_OF_PAGE(page) ((page) & 0xF)
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/* Macros for extracting tens and units of a hour information which
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must be in the range 0 ... 0x24.
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Note that hour is coded in hexadecimal, i.e. 0x12 means 12 hours */
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#define TENS_OF_HOUR(hour) ((hour) / 0x10)
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#define UNITS_OF_HOUR(hour) ((hour) & 0xF)
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/* Macros for extracting tens and units of a minute information which
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must be in the range 0 ... 0x59.
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Note that minute is coded in hexadecimal, i.e. 0x12 means 12 minutes */
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#define TENS_OF_MINUTE(minute) ((minute) / 0x10)
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#define UNITS_OF_MINUTE(minute) ((minute) & 0xF)
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#define HOUR_MAX 0x23
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#define MINUTE_MAX 0x59
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#define PAGE_MAX 0x8FF
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struct saa5246a_device
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{
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u8 pgbuf[NUM_DAUS][VTX_VIRTUALSIZE];
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@ -67,115 +397,10 @@ struct saa5246a_device
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static struct video_device saa_template; /* Declared near bottom */
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/* Addresses to scan */
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static unsigned short normal_i2c[] = { I2C_ADDRESS, I2C_CLIENT_END };
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I2C_CLIENT_INSMOD;
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static struct i2c_client client_template;
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static int saa5246a_attach(struct i2c_adapter *adap, int addr, int kind)
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{
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int pgbuf;
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int err;
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struct i2c_client *client;
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struct video_device *vd;
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struct saa5246a_device *t;
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printk(KERN_INFO "saa5246a: teletext chip found.\n");
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client=kmalloc(sizeof(*client), GFP_KERNEL);
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if(client==NULL)
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return -ENOMEM;
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client_template.adapter = adap;
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client_template.addr = addr;
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memcpy(client, &client_template, sizeof(*client));
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t = kzalloc(sizeof(*t), GFP_KERNEL);
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if(t==NULL)
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{
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kfree(client);
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return -ENOMEM;
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}
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strlcpy(client->name, IF_NAME, I2C_NAME_SIZE);
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mutex_init(&t->lock);
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/*
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* Now create a video4linux device
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*/
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vd = video_device_alloc();
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if(vd==NULL)
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{
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kfree(t);
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kfree(client);
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return -ENOMEM;
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}
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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
|
||||
*/
|
||||
|
||||
if((err=video_register_device(vd, VFL_TYPE_VTX,-1))<0)
|
||||
{
|
||||
kfree(t);
|
||||
kfree(client);
|
||||
video_device_release(vd);
|
||||
return err;
|
||||
}
|
||||
t->client = client;
|
||||
i2c_attach_client(client);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* We do most of the hard work when we become a device on the i2c.
|
||||
*/
|
||||
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)
|
||||
{
|
||||
struct video_device *vd = i2c_get_clientdata(client);
|
||||
|
||||
i2c_detach_client(client);
|
||||
video_unregister_device(vd);
|
||||
kfree(video_get_drvdata(vd));
|
||||
kfree(client);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* I2C interfaces
|
||||
*/
|
||||
|
||||
static struct i2c_driver i2c_driver_videotext =
|
||||
{
|
||||
.driver = {
|
||||
.name = IF_NAME, /* name */
|
||||
},
|
||||
.id = I2C_DRIVERID_SAA5249, /* in i2c.h */
|
||||
.attach_adapter = saa5246a_probe,
|
||||
.detach_client = saa5246a_detach,
|
||||
};
|
||||
|
||||
static struct i2c_client client_template = {
|
||||
.driver = &i2c_driver_videotext,
|
||||
.name = "(unset)",
|
||||
};
|
||||
|
||||
static int i2c_sendbuf(struct saa5246a_device *t, int reg, int count, u8 *data)
|
||||
{
|
||||
char buf[64];
|
||||
@ -794,22 +1019,6 @@ static int saa5246a_release(struct inode *inode, struct file *file)
|
||||
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 = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = saa5246a_open,
|
||||
@ -820,8 +1029,79 @@ static const struct file_operations saa_fops = {
|
||||
|
||||
static struct video_device saa_template =
|
||||
{
|
||||
.name = IF_NAME,
|
||||
.name = "saa5246a",
|
||||
.fops = &saa_fops,
|
||||
.release = video_device_release,
|
||||
.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,
|
||||
};
|
||||
|
||||
@ -1,359 +0,0 @@
|
||||
/*
|
||||
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__ */
|
||||
Loading…
Reference in New Issue
Block a user