linux/drivers/media/usb/stk1160/stk1160-reg.h
Marcel Hasler 9a4825edbc [media] stk1160: Wait for completion of transfers to and from AC97 codec
The STK1160 needs some time to transfer data to and from the AC97 codec.
The transfer completion is indicated by command read/write bits in the
chip's audio control register. The driver should poll these bits and
wait until they have been cleared by hardware before trying to retrieve
the results of a read operation or setting a new write command.

[mchehab@s-opensource.com: make checkpatch happier]
Signed-off-by: Marcel Hasler <mahasler@gmail.com>
Acked-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03 11:29:24 -02:00

138 lines
4.0 KiB
C

/*
* STK1160 driver
*
* Copyright (C) 2012 Ezequiel Garcia
* <elezegarcia--a.t--gmail.com>
*
* Based on Easycap driver by R.M. Thomas
* Copyright (C) 2010 R.M. Thomas
* <rmthomas--a.t--sciolus.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
*/
/* GPIO Control */
#define STK1160_GCTRL 0x000
/* Remote Wakup Control */
#define STK1160_RMCTL 0x00c
/* Power-on Strapping Data */
#define STK1160_POSVA 0x010
#define STK1160_POSV_L 0x010
#define STK1160_POSV_M 0x011
#define STK1160_POSV_H 0x012
#define STK1160_POSV_L_ACDOUT BIT(3)
#define STK1160_POSV_L_ACSYNC BIT(2)
/*
* Decoder Control Register:
* This byte controls capture start/stop
* with bit #7 (0x?? OR 0x80 to activate).
*/
#define STK1160_DCTRL 0x100
/*
* Decimation Control Register:
* Byte 104: Horizontal Decimation Line Unit Count
* Byte 105: Vertical Decimation Line Unit Count
* Byte 106: Decimation Control
* Bit 0 - Horizontal Decimation Control
* 0 Horizontal decimation is disabled.
* 1 Horizontal decimation is enabled.
* Bit 1 - Decimates Half or More Column
* 0 Decimates less than half from original column,
* send count unit (0x105) before each unit skipped.
* 1 Decimates half or more from original column,
* skip count unit (0x105) before each unit sent.
* Bit 2 - Vertical Decimation Control
* 0 Vertical decimation is disabled.
* 1 Vertical decimation is enabled.
* Bit 3 - Vertical Greater or Equal to Half
* 0 Decimates less than half from original row,
* send count unit (0x105) before each unit skipped.
* 1 Decimates half or more from original row,
* skip count unit (0x105) before each unit sent.
* Bit 4 - Decimation Unit
* 0 Decimation will work with 2 rows or columns per unit.
* 1 Decimation will work with 4 rows or columns per unit.
*/
#define STK1160_DMCTRL_H_UNITS 0x104
#define STK1160_DMCTRL_V_UNITS 0x105
#define STK1160_DMCTRL 0x106
#define STK1160_H_DEC_EN BIT(0)
#define STK1160_H_DEC_MODE BIT(1)
#define STK1160_V_DEC_EN BIT(2)
#define STK1160_V_DEC_MODE BIT(3)
#define STK1160_DEC_UNIT_SIZE BIT(4)
/* Capture Frame Start Position */
#define STK116_CFSPO 0x110
#define STK116_CFSPO_STX_L 0x110
#define STK116_CFSPO_STX_H 0x111
#define STK116_CFSPO_STY_L 0x112
#define STK116_CFSPO_STY_H 0x113
/* Capture Frame End Position */
#define STK116_CFEPO 0x114
#define STK116_CFEPO_ENX_L 0x114
#define STK116_CFEPO_ENX_H 0x115
#define STK116_CFEPO_ENY_L 0x116
#define STK116_CFEPO_ENY_H 0x117
/* Serial Interface Control */
#define STK1160_SICTL 0x200
#define STK1160_SICTL_CD 0x202
#define STK1160_SICTL_SDA 0x203
/* Serial Bus Write */
#define STK1160_SBUSW 0x204
#define STK1160_SBUSW_WA 0x204
#define STK1160_SBUSW_WD 0x205
/* Serial Bus Read */
#define STK1160_SBUSR 0x208
#define STK1160_SBUSR_RA 0x208
#define STK1160_SBUSR_RD 0x209
/* Alternate Serial Inteface Control */
#define STK1160_ASIC 0x2fc
/* PLL Select Options */
#define STK1160_PLLSO 0x018
/* PLL Frequency Divider */
#define STK1160_PLLFD 0x01c
/* Timing Generator */
#define STK1160_TIGEN 0x300
/* Timing Control Parameter */
#define STK1160_TICTL 0x350
/* AC97 Audio Control */
#define STK1160_AC97CTL_0 0x500
#define STK1160_AC97CTL_1 0x504
#define STK1160_AC97CTL_0_CR BIT(1)
#define STK1160_AC97CTL_0_CW BIT(2)
/* Use [0:6] bits of register 0x504 to set codec command address */
#define STK1160_AC97_ADDR 0x504
/* Use [16:31] bits of register 0x500 to set codec command data */
#define STK1160_AC97_CMD 0x502
/* Audio I2S Interface */
#define STK1160_I2SCTL 0x50c
/* EEPROM Interface */
#define STK1160_EEPROM_SZ 0x5f0