viafb: via_i2c.c, via_i2c.h, viamode.c, viamode.h
via_i2c.c, via_i2c.h: Implement i2c specification. viamode.c, viamode.c: all support modes information. Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joseph Chan
Linus Torvalds
Родитель
b3a45d8e5d
Коммит
9f291634aa
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
|
||||
* for more details.
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||||
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* You should have received a copy of the GNU General Public License
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||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "global.h"
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static void via_i2c_setscl(void *data, int state)
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{
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u8 val;
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struct via_i2c_stuff *via_i2c_chan = (struct via_i2c_stuff *)data;
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val = viafb_read_reg(VIASR, via_i2c_chan->i2c_port) & 0xF0;
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if (state)
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val |= 0x20;
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else
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val &= ~0x20;
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switch (via_i2c_chan->i2c_port) {
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case I2CPORTINDEX:
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val |= 0x01;
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break;
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case GPIOPORTINDEX:
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val |= 0x80;
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break;
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default:
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DEBUG_MSG("via_i2c: specify wrong i2c port.\n");
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}
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viafb_write_reg(via_i2c_chan->i2c_port, VIASR, val);
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}
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static int via_i2c_getscl(void *data)
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{
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struct via_i2c_stuff *via_i2c_chan = (struct via_i2c_stuff *)data;
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if (viafb_read_reg(VIASR, via_i2c_chan->i2c_port) & 0x08)
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return 1;
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return 0;
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}
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static int via_i2c_getsda(void *data)
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{
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struct via_i2c_stuff *via_i2c_chan = (struct via_i2c_stuff *)data;
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if (viafb_read_reg(VIASR, via_i2c_chan->i2c_port) & 0x04)
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return 1;
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return 0;
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}
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static void via_i2c_setsda(void *data, int state)
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{
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u8 val;
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struct via_i2c_stuff *via_i2c_chan = (struct via_i2c_stuff *)data;
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val = viafb_read_reg(VIASR, via_i2c_chan->i2c_port) & 0xF0;
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if (state)
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val |= 0x10;
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else
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val &= ~0x10;
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switch (via_i2c_chan->i2c_port) {
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case I2CPORTINDEX:
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val |= 0x01;
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break;
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case GPIOPORTINDEX:
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val |= 0x40;
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break;
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default:
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DEBUG_MSG("via_i2c: specify wrong i2c port.\n");
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}
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viafb_write_reg(via_i2c_chan->i2c_port, VIASR, val);
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}
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int viafb_i2c_readbyte(u8 slave_addr, u8 index, u8 *pdata)
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{
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u8 mm1[] = {0x00};
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struct i2c_msg msgs[2];
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*pdata = 0;
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msgs[0].flags = 0;
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msgs[1].flags = I2C_M_RD;
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msgs[0].addr = msgs[1].addr = slave_addr / 2;
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mm1[0] = index;
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msgs[0].len = 1; msgs[1].len = 1;
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msgs[0].buf = mm1; msgs[1].buf = pdata;
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i2c_transfer(&viaparinfo->i2c_stuff.adapter, msgs, 2);
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return 0;
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}
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int viafb_i2c_writebyte(u8 slave_addr, u8 index, u8 data)
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{
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u8 msg[2] = { index, data };
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struct i2c_msg msgs;
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msgs.flags = 0;
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msgs.addr = slave_addr / 2;
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msgs.len = 2;
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msgs.buf = msg;
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return i2c_transfer(&viaparinfo->i2c_stuff.adapter, &msgs, 1);
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}
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int viafb_i2c_readbytes(u8 slave_addr, u8 index, u8 *buff, int buff_len)
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{
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u8 mm1[] = {0x00};
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struct i2c_msg msgs[2];
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msgs[0].flags = 0;
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msgs[1].flags = I2C_M_RD;
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msgs[0].addr = msgs[1].addr = slave_addr / 2;
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mm1[0] = index;
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msgs[0].len = 1; msgs[1].len = buff_len;
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msgs[0].buf = mm1; msgs[1].buf = buff;
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i2c_transfer(&viaparinfo->i2c_stuff.adapter, msgs, 2);
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return 0;
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}
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int viafb_create_i2c_bus(void *viapar)
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{
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int ret;
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struct viafb_par *par = (struct viafb_par *)viapar;
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strcpy(par->i2c_stuff.adapter.name, "via_i2c");
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par->i2c_stuff.i2c_port = 0x0;
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par->i2c_stuff.adapter.owner = THIS_MODULE;
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par->i2c_stuff.adapter.id = 0x01FFFF;
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par->i2c_stuff.adapter.class = 0;
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par->i2c_stuff.adapter.algo_data = &par->i2c_stuff.algo;
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par->i2c_stuff.adapter.dev.parent = NULL;
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par->i2c_stuff.algo.setsda = via_i2c_setsda;
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par->i2c_stuff.algo.setscl = via_i2c_setscl;
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par->i2c_stuff.algo.getsda = via_i2c_getsda;
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par->i2c_stuff.algo.getscl = via_i2c_getscl;
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par->i2c_stuff.algo.udelay = 40;
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par->i2c_stuff.algo.timeout = 20;
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par->i2c_stuff.algo.data = &par->i2c_stuff;
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i2c_set_adapdata(&par->i2c_stuff.adapter, &par->i2c_stuff);
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/* Raise SCL and SDA */
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par->i2c_stuff.i2c_port = I2CPORTINDEX;
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via_i2c_setsda(&par->i2c_stuff, 1);
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via_i2c_setscl(&par->i2c_stuff, 1);
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par->i2c_stuff.i2c_port = GPIOPORTINDEX;
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via_i2c_setsda(&par->i2c_stuff, 1);
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via_i2c_setscl(&par->i2c_stuff, 1);
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udelay(20);
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ret = i2c_bit_add_bus(&par->i2c_stuff.adapter);
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if (ret == 0)
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DEBUG_MSG("I2C bus %s registered.\n",
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par->i2c_stuff.adapter.name);
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else
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DEBUG_MSG("Failed to register I2C bus %s.\n",
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par->i2c_stuff.adapter.name);
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return ret;
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}
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void viafb_delete_i2c_buss(void *par)
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{
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i2c_del_adapter(&((struct viafb_par *)par)->i2c_stuff.adapter);
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}
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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||||
* modify it under the terms of the GNU General Public
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||||
* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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|
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* This program is distributed in the hope that it will be useful,
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||||
* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||||
* A PARTICULAR PURPOSE.See the GNU General Public License
|
||||
* for more details.
|
||||
|
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* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __VIA_I2C_H__
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#define __VIA_I2C_H__
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#include <linux/i2c.h>
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#include <linux/i2c-algo-bit.h>
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struct via_i2c_stuff {
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u16 i2c_port; /* GPIO or I2C port */
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struct i2c_adapter adapter;
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struct i2c_algo_bit_data algo;
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};
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#define I2CPORT 0x3c4
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#define I2CPORTINDEX 0x31
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#define GPIOPORT 0x3C4
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#define GPIOPORTINDEX 0x2C
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#define I2C_BUS 1
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#define GPIO_BUS 2
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#define DELAYPORT 0x3C3
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int viafb_i2c_readbyte(u8 slave_addr, u8 index, u8 *pdata);
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int viafb_i2c_writebyte(u8 slave_addr, u8 index, u8 data);
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int viafb_i2c_readbytes(u8 slave_addr, u8 index, u8 *buff, int buff_len);
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int viafb_create_i2c_bus(void *par);
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void viafb_delete_i2c_buss(void *par);
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#endif /* __VIA_I2C_H__ */
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Загрузить разницу
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@ -0,0 +1,177 @@
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/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
|
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
|
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
|
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
|
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* A PARTICULAR PURPOSE.See the GNU General Public License
|
||||
* for more details.
|
||||
|
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* You should have received a copy of the GNU General Public License
|
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* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __VIAMODE_H__
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#define __VIAMODE_H__
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#include "global.h"
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struct VPITTable {
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unsigned char Misc;
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unsigned char SR[StdSR];
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unsigned char GR[StdGR];
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unsigned char AR[StdAR];
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};
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struct VideoModeTable {
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int ModeIndex;
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struct crt_mode_table *crtc;
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int mode_array;
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};
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struct patch_table {
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int mode_index;
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int table_length;
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struct io_reg *io_reg_table;
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};
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struct res_map_refresh {
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int hres;
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int vres;
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int pixclock;
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int vmode_refresh;
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};
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#define NUM_TOTAL_RES_MAP_REFRESH ARRAY_SIZE(res_map_refresh_tbl)
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#define NUM_TOTAL_CEA_MODES ARRAY_SIZE(CEA_HDMI_Modes)
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#define NUM_TOTAL_CN400_ModeXregs ARRAY_SIZE(CN400_ModeXregs)
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#define NUM_TOTAL_CN700_ModeXregs ARRAY_SIZE(CN700_ModeXregs)
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#define NUM_TOTAL_KM400_ModeXregs ARRAY_SIZE(KM400_ModeXregs)
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#define NUM_TOTAL_CX700_ModeXregs ARRAY_SIZE(CX700_ModeXregs)
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#define NUM_TOTAL_VX800_ModeXregs ARRAY_SIZE(VX800_ModeXregs)
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#define NUM_TOTAL_CLE266_ModeXregs ARRAY_SIZE(CLE266_ModeXregs)
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#define NUM_TOTAL_PATCH_MODE ARRAY_SIZE(res_patch_table)
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#define NUM_TOTAL_MODETABLE ARRAY_SIZE(CLE266Modes)
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/********************/
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/* Mode Table */
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/********************/
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/* 480x640 */
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extern struct crt_mode_table CRTM480x640[1];
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/* 640x480*/
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extern struct crt_mode_table CRTM640x480[5];
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/*720x480 (GTF)*/
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extern struct crt_mode_table CRTM720x480[1];
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/*720x576 (GTF)*/
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extern struct crt_mode_table CRTM720x576[1];
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/* 800x480 (CVT) */
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extern struct crt_mode_table CRTM800x480[1];
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/* 800x600*/
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extern struct crt_mode_table CRTM800x600[5];
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/* 848x480 (CVT) */
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extern struct crt_mode_table CRTM848x480[1];
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/*856x480 (GTF) convert to 852x480*/
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extern struct crt_mode_table CRTM852x480[1];
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/*1024x512 (GTF)*/
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extern struct crt_mode_table CRTM1024x512[1];
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/* 1024x600*/
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extern struct crt_mode_table CRTM1024x600[1];
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/* 1024x768*/
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extern struct crt_mode_table CRTM1024x768[4];
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/* 1152x864*/
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extern struct crt_mode_table CRTM1152x864[1];
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/* 1280x720 (HDMI 720P)*/
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extern struct crt_mode_table CRTM1280x720[2];
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/*1280x768 (GTF)*/
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extern struct crt_mode_table CRTM1280x768[2];
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/* 1280x800 (CVT) */
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extern struct crt_mode_table CRTM1280x800[1];
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/*1280x960*/
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extern struct crt_mode_table CRTM1280x960[1];
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/* 1280x1024*/
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extern struct crt_mode_table CRTM1280x1024[3];
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/* 1368x768 (GTF) */
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extern struct crt_mode_table CRTM1368x768[1];
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/*1440x1050 (GTF)*/
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extern struct crt_mode_table CRTM1440x1050[1];
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/* 1600x1200*/
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extern struct crt_mode_table CRTM1600x1200[2];
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/* 1680x1050 (CVT) */
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extern struct crt_mode_table CRTM1680x1050[2];
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/* 1680x1050 (CVT Reduce Blanking) */
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extern struct crt_mode_table CRTM1680x1050_RB[1];
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/* 1920x1080 (CVT)*/
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extern struct crt_mode_table CRTM1920x1080[1];
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/* 1920x1080 (CVT with Reduce Blanking) */
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extern struct crt_mode_table CRTM1920x1080_RB[1];
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/* 1920x1440*/
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extern struct crt_mode_table CRTM1920x1440[2];
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/* 1400x1050 (CVT) */
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extern struct crt_mode_table CRTM1400x1050[2];
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/* 1400x1050 (CVT Reduce Blanking) */
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extern struct crt_mode_table CRTM1400x1050_RB[1];
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/* 960x600 (CVT) */
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extern struct crt_mode_table CRTM960x600[1];
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/* 1000x600 (GTF) */
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extern struct crt_mode_table CRTM1000x600[1];
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/* 1024x576 (GTF) */
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extern struct crt_mode_table CRTM1024x576[1];
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/* 1088x612 (CVT) */
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extern struct crt_mode_table CRTM1088x612[1];
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/* 1152x720 (CVT) */
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extern struct crt_mode_table CRTM1152x720[1];
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/* 1200x720 (GTF) */
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extern struct crt_mode_table CRTM1200x720[1];
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/* 1280x600 (GTF) */
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extern struct crt_mode_table CRTM1280x600[1];
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/* 1360x768 (CVT) */
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extern struct crt_mode_table CRTM1360x768[1];
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/* 1360x768 (CVT Reduce Blanking) */
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extern struct crt_mode_table CRTM1360x768_RB[1];
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/* 1366x768 (GTF) */
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extern struct crt_mode_table CRTM1366x768[2];
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/* 1440x900 (CVT) */
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extern struct crt_mode_table CRTM1440x900[2];
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/* 1440x900 (CVT Reduce Blanking) */
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extern struct crt_mode_table CRTM1440x900_RB[1];
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/* 1600x900 (CVT) */
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extern struct crt_mode_table CRTM1600x900[1];
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/* 1600x900 (CVT Reduce Blanking) */
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extern struct crt_mode_table CRTM1600x900_RB[1];
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/* 1600x1024 (GTF) */
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extern struct crt_mode_table CRTM1600x1024[1];
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/* 1792x1344 (DMT) */
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extern struct crt_mode_table CRTM1792x1344[1];
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/* 1856x1392 (DMT) */
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extern struct crt_mode_table CRTM1856x1392[1];
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/* 1920x1200 (CVT) */
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extern struct crt_mode_table CRTM1920x1200[1];
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/* 1920x1200 (CVT with Reduce Blanking) */
|
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extern struct crt_mode_table CRTM1920x1200_RB[1];
|
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/* 2048x1536 (CVT) */
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extern struct crt_mode_table CRTM2048x1536[1];
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extern struct VideoModeTable CLE266Modes[47];
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extern struct crt_mode_table CEAM1280x720[1];
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extern struct crt_mode_table CEAM1920x1080[1];
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extern struct VideoModeTable CEA_HDMI_Modes[2];
|
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extern struct res_map_refresh res_map_refresh_tbl[61];
|
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extern struct io_reg CN400_ModeXregs[52];
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extern struct io_reg CN700_ModeXregs[66];
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extern struct io_reg KM400_ModeXregs[55];
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extern struct io_reg CX700_ModeXregs[58];
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extern struct io_reg VX800_ModeXregs[58];
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extern struct io_reg CLE266_ModeXregs[32];
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extern struct io_reg PM1024x768[2];
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extern struct patch_table res_patch_table[1];
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extern struct VPITTable VPIT;
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#endif /* __VIAMODE_H__ */
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