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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2004 Tyan Computer
* Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
* Copyright (C) 2006,2007 AMD
* Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <arch/io.h>
#include "mcp55.h"
static int set_bits(uint8_t *port, uint32_t mask, uint32_t val)
{
uint32_t dword;
int count;
val &= mask;
dword = readl(port);
dword &= ~mask;
dword |= val;
writel(dword, port);
count = 50;
do {
dword = readl(port);
dword &= mask;
udelay(100);
} while ((dword != val) && --count);
if(!count) return -1;
udelay(540);
return 0;
}
static int codec_detect(uint8_t *base)
{
uint32_t dword;
/* 1 */
set_bits(base + 0x08, 1, 1);
/* 2 */
dword = readl(base + 0x0e);
dword |= 7;
writel(dword, base + 0x0e);
/* 3 */
set_bits(base + 0x08, 1, 0);
/* 4 */
set_bits(base + 0x08, 1, 1);
/* 5 */
dword = readl(base + 0xe);
dword &= 7;
/* 6 */
if(!dword) {
set_bits(base + 0x08, 1, 0);
printk_debug("No codec!\n");
return 0;
}
return dword;
}
static uint32_t verb_data[] = {
#if 0
0x00172001,
0x001721e6,
0x00172200,
0x00172300,
#endif
0x01471c10,
0x01471d44,
0x01471e01,
0x01471f01,
//1
0x01571c12,
0x01571d14,
0x01571e01,
0x01571f01,
//2
0x01671c11,
0x01671d60,
0x01671e01,
0x01671f01,
//3
0x01771c14,
0x01771d20,
0x01771e01,
0x01771f01,
//4
0x01871c30,
0x01871d9c,
0x01871ea1,
0x01871f01,
//5
0x01971c40,
0x01971d9c,
0x01971ea1,
0x01971f02,
//6
0x01a71c31,
0x01a71d34,
0x01a71e81,
0x01a71f01,
//7
0x01b71c1f,
0x01b71d44,
0x01b71e21,
0x01b71f02,
//8
0x01c71cf0,
0x01c71d11,
0x01c71e11,
0x01c71f41,
//9
0x01d71c3e,
0x01d71d01,
0x01d71e83,
0x01d71f99,
//10
0x01e71c20,
0x01e71d41,
0x01e71e45,
0x01e71f01,
//11
0x01f71c50,
0x01f71d91,
0x01f71ec5,
0x01f71f01,
};
static unsigned find_verb(uint32_t viddid, uint32_t **verb)
{
if(viddid != 0x10ec0880) return 0;
*verb = (uint32_t *)verb_data;
return sizeof(verb_data)/sizeof(uint32_t);
}
static void codec_init(uint8_t *base, int addr)
{
uint32_t dword;
uint32_t *verb;
unsigned verb_size;
int i;
/* 1 */
do {
dword = readl(base + 0x68);
} while (dword & 1);
dword = (addr<<28) | 0x000f0000;
writel(dword, base + 0x60);
do {
dword = readl(base + 0x68);
} while ((dword & 3)!=2);
dword = readl(base + 0x64);
/* 2 */
printk_debug("codec viddid: %08x\n", dword);
verb_size = find_verb(dword, &verb);
if(!verb_size) {
printk_debug("No verb!\n");
return;
}
printk_debug("verb_size: %d\n", verb_size);
/* 3 */
for(i=0; i<verb_size; i++) {
do {
dword = readl(base + 0x68);
} while (dword & 1);
writel(verb[i], base + 0x60);
do {
dword = readl(base + 0x68);
} while ((dword & 3) != 2);
}
printk_debug("verb loaded!\n");
}
static void codecs_init(uint8_t *base, uint32_t codec_mask)
{
int i;
for(i=2; i>=0; i--) {
if( codec_mask & (1<<i) )
codec_init(base, i);
}
}
static void aza_init(struct device *dev)
{
uint8_t *base;
struct resource *res;
uint32_t codec_mask;
res = find_resource(dev, 0x10);
if(!res)
return;
base =(uint8_t *) res->base;
printk_debug("base = %08x\n", base);
codec_mask = codec_detect(base);
if(codec_mask) {
printk_debug("codec_mask = %02x\n", codec_mask);
codecs_init(base, codec_mask);
}
}
static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
pci_write_config32(dev, 0x40,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
static struct pci_operations lops_pci = {
.set_subsystem = lpci_set_subsystem,
};
static struct device_operations aza_audio_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
// .enable = mcp55_enable,
.init = aza_init,
.scan_bus = 0,
.ops_pci = &lops_pci,
};
static const struct pci_driver azaaudio_driver __pci_driver = {
.ops = &aza_audio_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_MCP55_AZA,
};
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