cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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solo6x10-tw28.c (25977B)


      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Copyright (C) 2010-2013 Bluecherry, LLC <https://www.bluecherrydvr.com>
      4 *
      5 * Original author:
      6 * Ben Collins <bcollins@ubuntu.com>
      7 *
      8 * Additional work by:
      9 * John Brooks <john.brooks@bluecherry.net>
     10 */
     11
     12#include <linux/kernel.h>
     13#include <linux/delay.h>
     14
     15#include "solo6x10.h"
     16#include "solo6x10-tw28.h"
     17
     18#define DEFAULT_HDELAY_NTSC		(32 - 8)
     19#define DEFAULT_HACTIVE_NTSC		(720 + 16)
     20#define DEFAULT_VDELAY_NTSC		(7 - 2)
     21#define DEFAULT_VACTIVE_NTSC		(240 + 4)
     22
     23#define DEFAULT_HDELAY_PAL		(32 + 4)
     24#define DEFAULT_HACTIVE_PAL		(864-DEFAULT_HDELAY_PAL)
     25#define DEFAULT_VDELAY_PAL		(6)
     26#define DEFAULT_VACTIVE_PAL		(312-DEFAULT_VDELAY_PAL)
     27
     28
     29static const u8 tbl_tw2864_ntsc_template[] = {
     30	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x00 */
     31	0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
     32	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x10 */
     33	0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
     34	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x20 */
     35	0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
     36	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x30 */
     37	0x12, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x00, 0x7f,
     38	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40 */
     39	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     40	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
     41	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     42	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60 */
     43	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     44	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70 */
     45	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA3, 0x00,
     46	0x00, 0x02, 0x00, 0xcc, 0x00, 0x80, 0x44, 0x50, /* 0x80 */
     47	0x22, 0x01, 0xd8, 0xbc, 0xb8, 0x44, 0x38, 0x00,
     48	0x00, 0x78, 0x72, 0x3e, 0x14, 0xa5, 0xe4, 0x05, /* 0x90 */
     49	0x00, 0x28, 0x44, 0x44, 0xa0, 0x88, 0x5a, 0x01,
     50	0x08, 0x08, 0x08, 0x08, 0x1a, 0x1a, 0x1a, 0x1a, /* 0xa0 */
     51	0x00, 0x00, 0x00, 0xf0, 0xf0, 0xf0, 0xf0, 0x44,
     52	0x44, 0x0a, 0x00, 0xff, 0xef, 0xef, 0xef, 0xef, /* 0xb0 */
     53	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     54	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
     55	0x00, 0x00, 0x55, 0x00, 0xb1, 0xe4, 0x40, 0x00,
     56	0x77, 0x77, 0x01, 0x13, 0x57, 0x9b, 0xdf, 0x20, /* 0xd0 */
     57	0x64, 0xa8, 0xec, 0xc1, 0x0f, 0x11, 0x11, 0x81,
     58	0x00, 0xe0, 0xbb, 0xbb, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
     59	0x11, 0x00, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00,
     60	0x83, 0xb5, 0x09, 0x78, 0x85, 0x00, 0x01, 0x20, /* 0xf0 */
     61	0x64, 0x11, 0x40, 0xaf, 0xff, 0x00, 0x00, 0x00,
     62};
     63
     64static const u8 tbl_tw2864_pal_template[] = {
     65	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x00 */
     66	0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
     67	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x10 */
     68	0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
     69	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x20 */
     70	0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
     71	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x30 */
     72	0x18, 0xf5, 0x0c, 0xd0, 0x00, 0x00, 0x01, 0x7f,
     73	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40 */
     74	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     75	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
     76	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     77	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60 */
     78	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     79	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70 */
     80	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA3, 0x00,
     81	0x00, 0x02, 0x00, 0xcc, 0x00, 0x80, 0x44, 0x50, /* 0x80 */
     82	0x22, 0x01, 0xd8, 0xbc, 0xb8, 0x44, 0x38, 0x00,
     83	0x00, 0x78, 0x72, 0x3e, 0x14, 0xa5, 0xe4, 0x05, /* 0x90 */
     84	0x00, 0x28, 0x44, 0x44, 0xa0, 0x90, 0x5a, 0x01,
     85	0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x1a, 0x1a, 0x1a, /* 0xa0 */
     86	0x00, 0x00, 0x00, 0xf0, 0xf0, 0xf0, 0xf0, 0x44,
     87	0x44, 0x0a, 0x00, 0xff, 0xef, 0xef, 0xef, 0xef, /* 0xb0 */
     88	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     89	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
     90	0x00, 0x00, 0x55, 0x00, 0xb1, 0xe4, 0x40, 0x00,
     91	0x77, 0x77, 0x01, 0x13, 0x57, 0x9b, 0xdf, 0x20, /* 0xd0 */
     92	0x64, 0xa8, 0xec, 0xc1, 0x0f, 0x11, 0x11, 0x81,
     93	0x00, 0xe0, 0xbb, 0xbb, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
     94	0x11, 0x00, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00,
     95	0x83, 0xb5, 0x09, 0x00, 0xa0, 0x00, 0x01, 0x20, /* 0xf0 */
     96	0x64, 0x11, 0x40, 0xaf, 0xff, 0x00, 0x00, 0x00,
     97};
     98
     99static const u8 tbl_tw2865_ntsc_template[] = {
    100	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x00 */
    101	0x12, 0xff, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
    102	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x10 */
    103	0x12, 0xff, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
    104	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x02, /* 0x20 */
    105	0x12, 0xff, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
    106	0x00, 0xf0, 0x70, 0x48, 0x80, 0x80, 0x00, 0x02, /* 0x30 */
    107	0x12, 0xff, 0x09, 0xd0, 0x00, 0x00, 0x00, 0x7f,
    108	0x00, 0x00, 0x90, 0x68, 0x00, 0x38, 0x80, 0x80, /* 0x40 */
    109	0x80, 0x80, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00,
    110	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
    111	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    112	0x45, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60 */
    113	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x43,
    114	0x08, 0x00, 0x00, 0x01, 0xf1, 0x03, 0xEF, 0x03, /* 0x70 */
    115	0xE9, 0x03, 0xD9, 0x15, 0x15, 0xE4, 0xA3, 0x80,
    116	0x00, 0x02, 0x00, 0xCC, 0x00, 0x80, 0x44, 0x50, /* 0x80 */
    117	0x22, 0x01, 0xD8, 0xBC, 0xB8, 0x44, 0x38, 0x00,
    118	0x00, 0x78, 0x44, 0x3D, 0x14, 0xA5, 0xE0, 0x05, /* 0x90 */
    119	0x00, 0x28, 0x44, 0x44, 0xA0, 0x90, 0x52, 0x13,
    120	0x08, 0x08, 0x08, 0x08, 0x1A, 0x1A, 0x1B, 0x1A, /* 0xa0 */
    121	0x00, 0x00, 0x00, 0xF0, 0xF0, 0xF0, 0xF0, 0x44,
    122	0x44, 0x4A, 0x00, 0xFF, 0xEF, 0xEF, 0xEF, 0xEF, /* 0xb0 */
    123	0xFF, 0xE7, 0xE9, 0xE9, 0xEB, 0xFF, 0xD6, 0xD8,
    124	0xD8, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
    125	0x00, 0x00, 0x55, 0x00, 0xE4, 0x39, 0x00, 0x80,
    126	0x77, 0x77, 0x03, 0x20, 0x57, 0x9b, 0xdf, 0x31, /* 0xd0 */
    127	0x64, 0xa8, 0xec, 0xd1, 0x0f, 0x11, 0x11, 0x81,
    128	0x10, 0xC0, 0xAA, 0xAA, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
    129	0x11, 0x00, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00,
    130	0x83, 0xB5, 0x09, 0x78, 0x85, 0x00, 0x01, 0x20, /* 0xf0 */
    131	0x64, 0x51, 0x40, 0xaf, 0xFF, 0xF0, 0x00, 0xC0,
    132};
    133
    134static const u8 tbl_tw2865_pal_template[] = {
    135	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x00 */
    136	0x11, 0xff, 0x01, 0xc3, 0x00, 0x00, 0x01, 0x7f,
    137	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x10 */
    138	0x11, 0xff, 0x01, 0xc3, 0x00, 0x00, 0x01, 0x7f,
    139	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x20 */
    140	0x11, 0xff, 0x01, 0xc3, 0x00, 0x00, 0x01, 0x7f,
    141	0x00, 0xf0, 0x70, 0x30, 0x80, 0x80, 0x00, 0x12, /* 0x30 */
    142	0x11, 0xff, 0x01, 0xc3, 0x00, 0x00, 0x01, 0x7f,
    143	0x00, 0x94, 0x90, 0x48, 0x00, 0x38, 0x7F, 0x80, /* 0x40 */
    144	0x80, 0x80, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00,
    145	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
    146	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    147	0x45, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60 */
    148	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x43,
    149	0x08, 0x00, 0x00, 0x01, 0xf1, 0x03, 0xEF, 0x03, /* 0x70 */
    150	0xEA, 0x03, 0xD9, 0x15, 0x15, 0xE4, 0xA3, 0x80,
    151	0x00, 0x02, 0x00, 0xCC, 0x00, 0x80, 0x44, 0x50, /* 0x80 */
    152	0x22, 0x01, 0xD8, 0xBC, 0xB8, 0x44, 0x38, 0x00,
    153	0x00, 0x78, 0x44, 0x3D, 0x14, 0xA5, 0xE0, 0x05, /* 0x90 */
    154	0x00, 0x28, 0x44, 0x44, 0xA0, 0x90, 0x52, 0x13,
    155	0x08, 0x08, 0x08, 0x08, 0x1A, 0x1A, 0x1A, 0x1A, /* 0xa0 */
    156	0x00, 0x00, 0x00, 0xF0, 0xF0, 0xF0, 0xF0, 0x44,
    157	0x44, 0x4A, 0x00, 0xFF, 0xEF, 0xEF, 0xEF, 0xEF, /* 0xb0 */
    158	0xFF, 0xE7, 0xE9, 0xE9, 0xE9, 0xFF, 0xD7, 0xD8,
    159	0xD9, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
    160	0x00, 0x00, 0x55, 0x00, 0xE4, 0x39, 0x00, 0x80,
    161	0x77, 0x77, 0x03, 0x20, 0x57, 0x9b, 0xdf, 0x31, /* 0xd0 */
    162	0x64, 0xa8, 0xec, 0xd1, 0x0f, 0x11, 0x11, 0x81,
    163	0x10, 0xC0, 0xAA, 0xAA, 0x00, 0x11, 0x00, 0x00, /* 0xe0 */
    164	0x11, 0x00, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00,
    165	0x83, 0xB5, 0x09, 0x00, 0xA0, 0x00, 0x01, 0x20, /* 0xf0 */
    166	0x64, 0x51, 0x40, 0xaf, 0xFF, 0xF0, 0x00, 0xC0,
    167};
    168
    169#define is_tw286x(__solo, __id) (!(__solo->tw2815 & (1 << __id)))
    170
    171static u8 tw_readbyte(struct solo_dev *solo_dev, int chip_id, u8 tw6x_off,
    172		      u8 tw_off)
    173{
    174	if (is_tw286x(solo_dev, chip_id))
    175		return solo_i2c_readbyte(solo_dev, SOLO_I2C_TW,
    176					 TW_CHIP_OFFSET_ADDR(chip_id),
    177					 tw6x_off);
    178	else
    179		return solo_i2c_readbyte(solo_dev, SOLO_I2C_TW,
    180					 TW_CHIP_OFFSET_ADDR(chip_id),
    181					 tw_off);
    182}
    183
    184static void tw_writebyte(struct solo_dev *solo_dev, int chip_id,
    185			 u8 tw6x_off, u8 tw_off, u8 val)
    186{
    187	if (is_tw286x(solo_dev, chip_id))
    188		solo_i2c_writebyte(solo_dev, SOLO_I2C_TW,
    189				   TW_CHIP_OFFSET_ADDR(chip_id),
    190				   tw6x_off, val);
    191	else
    192		solo_i2c_writebyte(solo_dev, SOLO_I2C_TW,
    193				   TW_CHIP_OFFSET_ADDR(chip_id),
    194				   tw_off, val);
    195}
    196
    197static void tw_write_and_verify(struct solo_dev *solo_dev, u8 addr, u8 off,
    198				u8 val)
    199{
    200	int i;
    201
    202	for (i = 0; i < 5; i++) {
    203		u8 rval = solo_i2c_readbyte(solo_dev, SOLO_I2C_TW, addr, off);
    204
    205		if (rval == val)
    206			return;
    207
    208		solo_i2c_writebyte(solo_dev, SOLO_I2C_TW, addr, off, val);
    209		msleep_interruptible(1);
    210	}
    211
    212/*	printk("solo6x10/tw28: Error writing register: %02x->%02x [%02x]\n", */
    213/*		addr, off, val); */
    214}
    215
    216static int tw2865_setup(struct solo_dev *solo_dev, u8 dev_addr)
    217{
    218	u8 tbl_tw2865_common[256];
    219	int i;
    220
    221	if (solo_dev->video_type == SOLO_VO_FMT_TYPE_PAL)
    222		memcpy(tbl_tw2865_common, tbl_tw2865_pal_template,
    223		       sizeof(tbl_tw2865_common));
    224	else
    225		memcpy(tbl_tw2865_common, tbl_tw2865_ntsc_template,
    226		       sizeof(tbl_tw2865_common));
    227
    228	/* ALINK Mode */
    229	if (solo_dev->nr_chans == 4) {
    230		tbl_tw2865_common[0xd2] = 0x01;
    231		tbl_tw2865_common[0xcf] = 0x00;
    232	} else if (solo_dev->nr_chans == 8) {
    233		tbl_tw2865_common[0xd2] = 0x02;
    234		if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    235			tbl_tw2865_common[0xcf] = 0x80;
    236	} else if (solo_dev->nr_chans == 16) {
    237		tbl_tw2865_common[0xd2] = 0x03;
    238		if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    239			tbl_tw2865_common[0xcf] = 0x83;
    240		else if (dev_addr == TW_CHIP_OFFSET_ADDR(2))
    241			tbl_tw2865_common[0xcf] = 0x83;
    242		else if (dev_addr == TW_CHIP_OFFSET_ADDR(3))
    243			tbl_tw2865_common[0xcf] = 0x80;
    244	}
    245
    246	for (i = 0; i < 0xff; i++) {
    247		/* Skip read only registers */
    248		switch (i) {
    249		case 0xb8 ... 0xc1:
    250		case 0xc4 ... 0xc7:
    251		case 0xfd:
    252			continue;
    253		}
    254		switch (i & ~0x30) {
    255		case 0x00:
    256		case 0x0c ... 0x0d:
    257			continue;
    258		}
    259
    260		tw_write_and_verify(solo_dev, dev_addr, i,
    261				    tbl_tw2865_common[i]);
    262	}
    263
    264	return 0;
    265}
    266
    267static int tw2864_setup(struct solo_dev *solo_dev, u8 dev_addr)
    268{
    269	u8 tbl_tw2864_common[256];
    270	int i;
    271
    272	if (solo_dev->video_type == SOLO_VO_FMT_TYPE_PAL)
    273		memcpy(tbl_tw2864_common, tbl_tw2864_pal_template,
    274		       sizeof(tbl_tw2864_common));
    275	else
    276		memcpy(tbl_tw2864_common, tbl_tw2864_ntsc_template,
    277		       sizeof(tbl_tw2864_common));
    278
    279	if (solo_dev->tw2865 == 0) {
    280		/* IRQ Mode */
    281		if (solo_dev->nr_chans == 4) {
    282			tbl_tw2864_common[0xd2] = 0x01;
    283			tbl_tw2864_common[0xcf] = 0x00;
    284		} else if (solo_dev->nr_chans == 8) {
    285			tbl_tw2864_common[0xd2] = 0x02;
    286			if (dev_addr == TW_CHIP_OFFSET_ADDR(0))
    287				tbl_tw2864_common[0xcf] = 0x43;
    288			else if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    289				tbl_tw2864_common[0xcf] = 0x40;
    290		} else if (solo_dev->nr_chans == 16) {
    291			tbl_tw2864_common[0xd2] = 0x03;
    292			if (dev_addr == TW_CHIP_OFFSET_ADDR(0))
    293				tbl_tw2864_common[0xcf] = 0x43;
    294			else if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    295				tbl_tw2864_common[0xcf] = 0x43;
    296			else if (dev_addr == TW_CHIP_OFFSET_ADDR(2))
    297				tbl_tw2864_common[0xcf] = 0x43;
    298			else if (dev_addr == TW_CHIP_OFFSET_ADDR(3))
    299				tbl_tw2864_common[0xcf] = 0x40;
    300		}
    301	} else {
    302		/* ALINK Mode. Assumes that the first tw28xx is a
    303		 * 2865 and these are in cascade. */
    304		for (i = 0; i <= 4; i++)
    305			tbl_tw2864_common[0x08 | i << 4] = 0x12;
    306
    307		if (solo_dev->nr_chans == 8) {
    308			tbl_tw2864_common[0xd2] = 0x02;
    309			if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    310				tbl_tw2864_common[0xcf] = 0x80;
    311		} else if (solo_dev->nr_chans == 16) {
    312			tbl_tw2864_common[0xd2] = 0x03;
    313			if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    314				tbl_tw2864_common[0xcf] = 0x83;
    315			else if (dev_addr == TW_CHIP_OFFSET_ADDR(2))
    316				tbl_tw2864_common[0xcf] = 0x83;
    317			else if (dev_addr == TW_CHIP_OFFSET_ADDR(3))
    318				tbl_tw2864_common[0xcf] = 0x80;
    319		}
    320	}
    321
    322	for (i = 0; i < 0xff; i++) {
    323		/* Skip read only registers */
    324		switch (i) {
    325		case 0xb8 ... 0xc1:
    326		case 0xfd:
    327			continue;
    328		}
    329		switch (i & ~0x30) {
    330		case 0x00:
    331		case 0x0c:
    332		case 0x0d:
    333			continue;
    334		}
    335
    336		tw_write_and_verify(solo_dev, dev_addr, i,
    337				    tbl_tw2864_common[i]);
    338	}
    339
    340	return 0;
    341}
    342
    343static int tw2815_setup(struct solo_dev *solo_dev, u8 dev_addr)
    344{
    345	u8 tbl_ntsc_tw2815_common[] = {
    346		0x00, 0xc8, 0x20, 0xd0, 0x06, 0xf0, 0x08, 0x80,
    347		0x80, 0x80, 0x80, 0x02, 0x06, 0x00, 0x11,
    348	};
    349
    350	u8 tbl_pal_tw2815_common[] = {
    351		0x00, 0x88, 0x20, 0xd0, 0x05, 0x20, 0x28, 0x80,
    352		0x80, 0x80, 0x80, 0x82, 0x06, 0x00, 0x11,
    353	};
    354
    355	u8 tbl_tw2815_sfr[] = {
    356		0x00, 0x00, 0x00, 0xc0, 0x45, 0xa0, 0xd0, 0x2f, /* 0x00 */
    357		0x64, 0x80, 0x80, 0x82, 0x82, 0x00, 0x00, 0x00,
    358		0x00, 0x0f, 0x05, 0x00, 0x00, 0x80, 0x06, 0x00, /* 0x10 */
    359		0x00, 0x00, 0x00, 0xff, 0x8f, 0x00, 0x00, 0x00,
    360		0x88, 0x88, 0xc0, 0x00, 0x20, 0x64, 0xa8, 0xec, /* 0x20 */
    361		0x31, 0x75, 0xb9, 0xfd, 0x00, 0x00, 0x88, 0x88,
    362		0x88, 0x11, 0x00, 0x88, 0x88, 0x00,		/* 0x30 */
    363	};
    364	u8 *tbl_tw2815_common;
    365	int i;
    366	int ch;
    367
    368	tbl_ntsc_tw2815_common[0x06] = 0;
    369
    370	/* Horizontal Delay Control */
    371	tbl_ntsc_tw2815_common[0x02] = DEFAULT_HDELAY_NTSC & 0xff;
    372	tbl_ntsc_tw2815_common[0x06] |= 0x03 & (DEFAULT_HDELAY_NTSC >> 8);
    373
    374	/* Horizontal Active Control */
    375	tbl_ntsc_tw2815_common[0x03] = DEFAULT_HACTIVE_NTSC & 0xff;
    376	tbl_ntsc_tw2815_common[0x06] |=
    377		((0x03 & (DEFAULT_HACTIVE_NTSC >> 8)) << 2);
    378
    379	/* Vertical Delay Control */
    380	tbl_ntsc_tw2815_common[0x04] = DEFAULT_VDELAY_NTSC & 0xff;
    381	tbl_ntsc_tw2815_common[0x06] |=
    382		((0x01 & (DEFAULT_VDELAY_NTSC >> 8)) << 4);
    383
    384	/* Vertical Active Control */
    385	tbl_ntsc_tw2815_common[0x05] = DEFAULT_VACTIVE_NTSC & 0xff;
    386	tbl_ntsc_tw2815_common[0x06] |=
    387		((0x01 & (DEFAULT_VACTIVE_NTSC >> 8)) << 5);
    388
    389	tbl_pal_tw2815_common[0x06] = 0;
    390
    391	/* Horizontal Delay Control */
    392	tbl_pal_tw2815_common[0x02] = DEFAULT_HDELAY_PAL & 0xff;
    393	tbl_pal_tw2815_common[0x06] |= 0x03 & (DEFAULT_HDELAY_PAL >> 8);
    394
    395	/* Horizontal Active Control */
    396	tbl_pal_tw2815_common[0x03] = DEFAULT_HACTIVE_PAL & 0xff;
    397	tbl_pal_tw2815_common[0x06] |=
    398		((0x03 & (DEFAULT_HACTIVE_PAL >> 8)) << 2);
    399
    400	/* Vertical Delay Control */
    401	tbl_pal_tw2815_common[0x04] = DEFAULT_VDELAY_PAL & 0xff;
    402	tbl_pal_tw2815_common[0x06] |=
    403		((0x01 & (DEFAULT_VDELAY_PAL >> 8)) << 4);
    404
    405	/* Vertical Active Control */
    406	tbl_pal_tw2815_common[0x05] = DEFAULT_VACTIVE_PAL & 0xff;
    407	tbl_pal_tw2815_common[0x06] |=
    408		((0x01 & (DEFAULT_VACTIVE_PAL >> 8)) << 5);
    409
    410	tbl_tw2815_common =
    411	    (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) ?
    412	     tbl_ntsc_tw2815_common : tbl_pal_tw2815_common;
    413
    414	/* Dual ITU-R BT.656 format */
    415	tbl_tw2815_common[0x0d] |= 0x04;
    416
    417	/* Audio configuration */
    418	tbl_tw2815_sfr[0x62 - 0x40] &= ~(3 << 6);
    419
    420	if (solo_dev->nr_chans == 4) {
    421		tbl_tw2815_sfr[0x63 - 0x40] |= 1;
    422		tbl_tw2815_sfr[0x62 - 0x40] |= 3 << 6;
    423	} else if (solo_dev->nr_chans == 8) {
    424		tbl_tw2815_sfr[0x63 - 0x40] |= 2;
    425		if (dev_addr == TW_CHIP_OFFSET_ADDR(0))
    426			tbl_tw2815_sfr[0x62 - 0x40] |= 1 << 6;
    427		else if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    428			tbl_tw2815_sfr[0x62 - 0x40] |= 2 << 6;
    429	} else if (solo_dev->nr_chans == 16) {
    430		tbl_tw2815_sfr[0x63 - 0x40] |= 3;
    431		if (dev_addr == TW_CHIP_OFFSET_ADDR(0))
    432			tbl_tw2815_sfr[0x62 - 0x40] |= 1 << 6;
    433		else if (dev_addr == TW_CHIP_OFFSET_ADDR(1))
    434			tbl_tw2815_sfr[0x62 - 0x40] |= 0 << 6;
    435		else if (dev_addr == TW_CHIP_OFFSET_ADDR(2))
    436			tbl_tw2815_sfr[0x62 - 0x40] |= 0 << 6;
    437		else if (dev_addr == TW_CHIP_OFFSET_ADDR(3))
    438			tbl_tw2815_sfr[0x62 - 0x40] |= 2 << 6;
    439	}
    440
    441	/* Output mode of R_ADATM pin (0 mixing, 1 record) */
    442	/* tbl_tw2815_sfr[0x63 - 0x40] |= 0 << 2; */
    443
    444	/* 8KHz, used to be 16KHz, but changed for remote client compat */
    445	tbl_tw2815_sfr[0x62 - 0x40] |= 0 << 2;
    446	tbl_tw2815_sfr[0x6c - 0x40] |= 0 << 2;
    447
    448	/* Playback of right channel */
    449	tbl_tw2815_sfr[0x6c - 0x40] |= 1 << 5;
    450
    451	/* Reserved value (XXX ??) */
    452	tbl_tw2815_sfr[0x5c - 0x40] |= 1 << 5;
    453
    454	/* Analog output gain and mix ratio playback on full */
    455	tbl_tw2815_sfr[0x70 - 0x40] |= 0xff;
    456	/* Select playback audio and mute all except */
    457	tbl_tw2815_sfr[0x71 - 0x40] |= 0x10;
    458	tbl_tw2815_sfr[0x6d - 0x40] |= 0x0f;
    459
    460	/* End of audio configuration */
    461
    462	for (ch = 0; ch < 4; ch++) {
    463		tbl_tw2815_common[0x0d] &= ~3;
    464		switch (ch) {
    465		case 0:
    466			tbl_tw2815_common[0x0d] |= 0x21;
    467			break;
    468		case 1:
    469			tbl_tw2815_common[0x0d] |= 0x20;
    470			break;
    471		case 2:
    472			tbl_tw2815_common[0x0d] |= 0x23;
    473			break;
    474		case 3:
    475			tbl_tw2815_common[0x0d] |= 0x22;
    476			break;
    477		}
    478
    479		for (i = 0; i < 0x0f; i++) {
    480			if (i == 0x00)
    481				continue;	/* read-only */
    482			solo_i2c_writebyte(solo_dev, SOLO_I2C_TW,
    483					   dev_addr, (ch * 0x10) + i,
    484					   tbl_tw2815_common[i]);
    485		}
    486	}
    487
    488	for (i = 0x40; i < 0x76; i++) {
    489		/* Skip read-only and nop registers */
    490		if (i == 0x40 || i == 0x59 || i == 0x5a ||
    491		    i == 0x5d || i == 0x5e || i == 0x5f)
    492			continue;
    493
    494		solo_i2c_writebyte(solo_dev, SOLO_I2C_TW, dev_addr, i,
    495				       tbl_tw2815_sfr[i - 0x40]);
    496	}
    497
    498	return 0;
    499}
    500
    501#define FIRST_ACTIVE_LINE	0x0008
    502#define LAST_ACTIVE_LINE	0x0102
    503
    504static void saa712x_write_regs(struct solo_dev *dev, const u8 *vals,
    505		int start, int n)
    506{
    507	for (; start < n; start++, vals++) {
    508		/* Skip read-only registers */
    509		switch (start) {
    510		/* case 0x00 ... 0x25: */
    511		case 0x2e ... 0x37:
    512		case 0x60:
    513		case 0x7d:
    514			continue;
    515		}
    516		solo_i2c_writebyte(dev, SOLO_I2C_SAA, 0x46, start, *vals);
    517	}
    518}
    519
    520#define SAA712x_reg7c (0x80 | ((LAST_ACTIVE_LINE & 0x100) >> 2) \
    521		| ((FIRST_ACTIVE_LINE & 0x100) >> 4))
    522
    523static void saa712x_setup(struct solo_dev *dev)
    524{
    525	const int reg_start = 0x26;
    526	static const u8 saa7128_regs_ntsc[] = {
    527	/* :0x26 */
    528		0x0d, 0x00,
    529	/* :0x28 */
    530		0x59, 0x1d, 0x75, 0x3f, 0x06, 0x3f,
    531	/* :0x2e XXX: read-only */
    532		0x00, 0x00,
    533		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    534	/* :0x38 */
    535		0x1a, 0x1a, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00,
    536	/* :0x40 */
    537		0x00, 0x00, 0x00, 0x68, 0x10, 0x97, 0x4c, 0x18,
    538		0x9b, 0x93, 0x9f, 0xff, 0x7c, 0x34, 0x3f, 0x3f,
    539	/* :0x50 */
    540		0x3f, 0x83, 0x83, 0x80, 0x0d, 0x0f, 0xc3, 0x06,
    541		0x02, 0x80, 0x71, 0x77, 0xa7, 0x67, 0x66, 0x2e,
    542	/* :0x60 */
    543		0x7b, 0x11, 0x4f, 0x1f, 0x7c, 0xf0, 0x21, 0x77,
    544		0x41, 0x88, 0x41, 0x52, 0xed, 0x10, 0x10, 0x00,
    545	/* :0x70 */
    546		0x41, 0xc3, 0x00, 0x3e, 0xb8, 0x02, 0x00, 0x00,
    547		0x00, 0x00, FIRST_ACTIVE_LINE, LAST_ACTIVE_LINE & 0xff,
    548		SAA712x_reg7c, 0x00, 0xff, 0xff,
    549	}, saa7128_regs_pal[] = {
    550	/* :0x26 */
    551		0x0d, 0x00,
    552	/* :0x28 */
    553		0xe1, 0x1d, 0x75, 0x3f, 0x06, 0x3f,
    554	/* :0x2e XXX: read-only */
    555		0x00, 0x00,
    556		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    557	/* :0x38 */
    558		0x1a, 0x1a, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00,
    559	/* :0x40 */
    560		0x00, 0x00, 0x00, 0x68, 0x10, 0x97, 0x4c, 0x18,
    561		0x9b, 0x93, 0x9f, 0xff, 0x7c, 0x34, 0x3f, 0x3f,
    562	/* :0x50 */
    563		0x3f, 0x83, 0x83, 0x80, 0x0d, 0x0f, 0xc3, 0x06,
    564		0x02, 0x80, 0x0f, 0x77, 0xa7, 0x67, 0x66, 0x2e,
    565	/* :0x60 */
    566		0x7b, 0x02, 0x35, 0xcb, 0x8a, 0x09, 0x2a, 0x77,
    567		0x41, 0x88, 0x41, 0x52, 0xf1, 0x10, 0x20, 0x00,
    568	/* :0x70 */
    569		0x41, 0xc3, 0x00, 0x3e, 0xb8, 0x02, 0x00, 0x00,
    570		0x00, 0x00, 0x12, 0x30,
    571		SAA712x_reg7c | 0x40, 0x00, 0xff, 0xff,
    572	};
    573
    574	if (dev->video_type == SOLO_VO_FMT_TYPE_PAL)
    575		saa712x_write_regs(dev, saa7128_regs_pal, reg_start,
    576				sizeof(saa7128_regs_pal));
    577	else
    578		saa712x_write_regs(dev, saa7128_regs_ntsc, reg_start,
    579				sizeof(saa7128_regs_ntsc));
    580}
    581
    582int solo_tw28_init(struct solo_dev *solo_dev)
    583{
    584	int i;
    585	u8 value;
    586
    587	solo_dev->tw28_cnt = 0;
    588
    589	/* Detect techwell chip type(s) */
    590	for (i = 0; i < solo_dev->nr_chans / 4; i++) {
    591		value = solo_i2c_readbyte(solo_dev, SOLO_I2C_TW,
    592					  TW_CHIP_OFFSET_ADDR(i), 0xFF);
    593
    594		switch (value >> 3) {
    595		case 0x18:
    596			solo_dev->tw2865 |= 1 << i;
    597			solo_dev->tw28_cnt++;
    598			break;
    599		case 0x0c:
    600		case 0x0d:
    601			solo_dev->tw2864 |= 1 << i;
    602			solo_dev->tw28_cnt++;
    603			break;
    604		default:
    605			value = solo_i2c_readbyte(solo_dev, SOLO_I2C_TW,
    606						  TW_CHIP_OFFSET_ADDR(i),
    607						  0x59);
    608			if ((value >> 3) == 0x04) {
    609				solo_dev->tw2815 |= 1 << i;
    610				solo_dev->tw28_cnt++;
    611			}
    612		}
    613	}
    614
    615	if (solo_dev->tw28_cnt != (solo_dev->nr_chans >> 2)) {
    616		dev_err(&solo_dev->pdev->dev,
    617			"Could not initialize any techwell chips\n");
    618		return -EINVAL;
    619	}
    620
    621	saa712x_setup(solo_dev);
    622
    623	for (i = 0; i < solo_dev->tw28_cnt; i++) {
    624		if ((solo_dev->tw2865 & (1 << i)))
    625			tw2865_setup(solo_dev, TW_CHIP_OFFSET_ADDR(i));
    626		else if ((solo_dev->tw2864 & (1 << i)))
    627			tw2864_setup(solo_dev, TW_CHIP_OFFSET_ADDR(i));
    628		else
    629			tw2815_setup(solo_dev, TW_CHIP_OFFSET_ADDR(i));
    630	}
    631
    632	return 0;
    633}
    634
    635/*
    636 * We accessed the video status signal in the Techwell chip through
    637 * iic/i2c because the video status reported by register REG_VI_STATUS1
    638 * (address 0x012C) of the SOLO6010 chip doesn't give the correct video
    639 * status signal values.
    640 */
    641int tw28_get_video_status(struct solo_dev *solo_dev, u8 ch)
    642{
    643	u8 val, chip_num;
    644
    645	/* Get the right chip and on-chip channel */
    646	chip_num = ch / 4;
    647	ch %= 4;
    648
    649	val = tw_readbyte(solo_dev, chip_num, TW286x_AV_STAT_ADDR,
    650			  TW_AV_STAT_ADDR) & 0x0f;
    651
    652	return val & (1 << ch) ? 1 : 0;
    653}
    654
    655#if 0
    656/* Status of audio from up to 4 techwell chips are combined into 1 variable.
    657 * See techwell datasheet for details. */
    658u16 tw28_get_audio_status(struct solo_dev *solo_dev)
    659{
    660	u8 val;
    661	u16 status = 0;
    662	int i;
    663
    664	for (i = 0; i < solo_dev->tw28_cnt; i++) {
    665		val = (tw_readbyte(solo_dev, i, TW286x_AV_STAT_ADDR,
    666				   TW_AV_STAT_ADDR) & 0xf0) >> 4;
    667		status |= val << (i * 4);
    668	}
    669
    670	return status;
    671}
    672#endif
    673
    674bool tw28_has_sharpness(struct solo_dev *solo_dev, u8 ch)
    675{
    676	return is_tw286x(solo_dev, ch / 4);
    677}
    678
    679int tw28_set_ctrl_val(struct solo_dev *solo_dev, u32 ctrl, u8 ch,
    680		      s32 val)
    681{
    682	char sval;
    683	u8 chip_num;
    684
    685	/* Get the right chip and on-chip channel */
    686	chip_num = ch / 4;
    687	ch %= 4;
    688
    689	if (val > 255 || val < 0)
    690		return -ERANGE;
    691
    692	switch (ctrl) {
    693	case V4L2_CID_SHARPNESS:
    694		/* Only 286x has sharpness */
    695		if (is_tw286x(solo_dev, chip_num)) {
    696			u8 v = solo_i2c_readbyte(solo_dev, SOLO_I2C_TW,
    697						 TW_CHIP_OFFSET_ADDR(chip_num),
    698						 TW286x_SHARPNESS(chip_num));
    699			v &= 0xf0;
    700			v |= val;
    701			solo_i2c_writebyte(solo_dev, SOLO_I2C_TW,
    702					   TW_CHIP_OFFSET_ADDR(chip_num),
    703					   TW286x_SHARPNESS(chip_num), v);
    704		} else {
    705			return -EINVAL;
    706		}
    707		break;
    708
    709	case V4L2_CID_HUE:
    710		if (is_tw286x(solo_dev, chip_num))
    711			sval = val - 128;
    712		else
    713			sval = (char)val;
    714		tw_writebyte(solo_dev, chip_num, TW286x_HUE_ADDR(ch),
    715			     TW_HUE_ADDR(ch), sval);
    716
    717		break;
    718
    719	case V4L2_CID_SATURATION:
    720		/* 286x chips have a U and V component for saturation */
    721		if (is_tw286x(solo_dev, chip_num)) {
    722			solo_i2c_writebyte(solo_dev, SOLO_I2C_TW,
    723					   TW_CHIP_OFFSET_ADDR(chip_num),
    724					   TW286x_SATURATIONU_ADDR(ch), val);
    725		}
    726		tw_writebyte(solo_dev, chip_num, TW286x_SATURATIONV_ADDR(ch),
    727			     TW_SATURATION_ADDR(ch), val);
    728
    729		break;
    730
    731	case V4L2_CID_CONTRAST:
    732		tw_writebyte(solo_dev, chip_num, TW286x_CONTRAST_ADDR(ch),
    733			     TW_CONTRAST_ADDR(ch), val);
    734		break;
    735
    736	case V4L2_CID_BRIGHTNESS:
    737		if (is_tw286x(solo_dev, chip_num))
    738			sval = val - 128;
    739		else
    740			sval = (char)val;
    741		tw_writebyte(solo_dev, chip_num, TW286x_BRIGHTNESS_ADDR(ch),
    742			     TW_BRIGHTNESS_ADDR(ch), sval);
    743
    744		break;
    745	default:
    746		return -EINVAL;
    747	}
    748
    749	return 0;
    750}
    751
    752int tw28_get_ctrl_val(struct solo_dev *solo_dev, u32 ctrl, u8 ch,
    753		      s32 *val)
    754{
    755	u8 rval, chip_num;
    756
    757	/* Get the right chip and on-chip channel */
    758	chip_num = ch / 4;
    759	ch %= 4;
    760
    761	switch (ctrl) {
    762	case V4L2_CID_SHARPNESS:
    763		/* Only 286x has sharpness */
    764		if (is_tw286x(solo_dev, chip_num)) {
    765			rval = solo_i2c_readbyte(solo_dev, SOLO_I2C_TW,
    766						 TW_CHIP_OFFSET_ADDR(chip_num),
    767						 TW286x_SHARPNESS(chip_num));
    768			*val = rval & 0x0f;
    769		} else
    770			*val = 0;
    771		break;
    772	case V4L2_CID_HUE:
    773		rval = tw_readbyte(solo_dev, chip_num, TW286x_HUE_ADDR(ch),
    774				   TW_HUE_ADDR(ch));
    775		if (is_tw286x(solo_dev, chip_num))
    776			*val = (s32)((char)rval) + 128;
    777		else
    778			*val = rval;
    779		break;
    780	case V4L2_CID_SATURATION:
    781		*val = tw_readbyte(solo_dev, chip_num,
    782				   TW286x_SATURATIONU_ADDR(ch),
    783				   TW_SATURATION_ADDR(ch));
    784		break;
    785	case V4L2_CID_CONTRAST:
    786		*val = tw_readbyte(solo_dev, chip_num,
    787				   TW286x_CONTRAST_ADDR(ch),
    788				   TW_CONTRAST_ADDR(ch));
    789		break;
    790	case V4L2_CID_BRIGHTNESS:
    791		rval = tw_readbyte(solo_dev, chip_num,
    792				   TW286x_BRIGHTNESS_ADDR(ch),
    793				   TW_BRIGHTNESS_ADDR(ch));
    794		if (is_tw286x(solo_dev, chip_num))
    795			*val = (s32)((char)rval) + 128;
    796		else
    797			*val = rval;
    798		break;
    799	default:
    800		return -EINVAL;
    801	}
    802
    803	return 0;
    804}
    805
    806#if 0
    807/*
    808 * For audio output volume, the output channel is only 1. In this case we
    809 * don't need to offset TW_CHIP_OFFSET_ADDR. The TW_CHIP_OFFSET_ADDR used
    810 * is the base address of the techwell chip.
    811 */
    812void tw2815_Set_AudioOutVol(struct solo_dev *solo_dev, unsigned int u_val)
    813{
    814	unsigned int val;
    815	unsigned int chip_num;
    816
    817	chip_num = (solo_dev->nr_chans - 1) / 4;
    818
    819	val = tw_readbyte(solo_dev, chip_num, TW286x_AUDIO_OUTPUT_VOL_ADDR,
    820			  TW_AUDIO_OUTPUT_VOL_ADDR);
    821
    822	u_val = (val & 0x0f) | (u_val << 4);
    823
    824	tw_writebyte(solo_dev, chip_num, TW286x_AUDIO_OUTPUT_VOL_ADDR,
    825		     TW_AUDIO_OUTPUT_VOL_ADDR, u_val);
    826}
    827#endif
    828
    829u8 tw28_get_audio_gain(struct solo_dev *solo_dev, u8 ch)
    830{
    831	u8 val;
    832	u8 chip_num;
    833
    834	/* Get the right chip and on-chip channel */
    835	chip_num = ch / 4;
    836	ch %= 4;
    837
    838	val = tw_readbyte(solo_dev, chip_num,
    839			  TW286x_AUDIO_INPUT_GAIN_ADDR(ch),
    840			  TW_AUDIO_INPUT_GAIN_ADDR(ch));
    841
    842	return (ch % 2) ? (val >> 4) : (val & 0x0f);
    843}
    844
    845void tw28_set_audio_gain(struct solo_dev *solo_dev, u8 ch, u8 val)
    846{
    847	u8 old_val;
    848	u8 chip_num;
    849
    850	/* Get the right chip and on-chip channel */
    851	chip_num = ch / 4;
    852	ch %= 4;
    853
    854	old_val = tw_readbyte(solo_dev, chip_num,
    855			      TW286x_AUDIO_INPUT_GAIN_ADDR(ch),
    856			      TW_AUDIO_INPUT_GAIN_ADDR(ch));
    857
    858	val = (old_val & ((ch % 2) ? 0x0f : 0xf0)) |
    859		((ch % 2) ? (val << 4) : val);
    860
    861	tw_writebyte(solo_dev, chip_num, TW286x_AUDIO_INPUT_GAIN_ADDR(ch),
    862		     TW_AUDIO_INPUT_GAIN_ADDR(ch), val);
    863}