81cb727d29
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
/*
|
|
* cx18 ADEC firmware functions
|
|
*
|
|
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
|
|
*
|
|
* 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 Street, Fifth Floor, Boston, MA
|
|
* 02110-1301, USA.
|
|
*/
|
|
|
|
#include "cx18-driver.h"
|
|
#include <linux/firmware.h>
|
|
|
|
#define CX18_AUDIO_ENABLE 0xc72014
|
|
#define FWFILE "v4l-cx23418-dig.fw"
|
|
|
|
int cx18_av_loadfw(struct cx18 *cx)
|
|
{
|
|
const struct firmware *fw = NULL;
|
|
u32 size;
|
|
u32 v;
|
|
const u8 *ptr;
|
|
int i;
|
|
int retries = 0;
|
|
|
|
if (request_firmware(&fw, FWFILE, &cx->dev->dev) != 0) {
|
|
CX18_ERR("unable to open firmware %s\n", FWFILE);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* The firmware load often has byte errors, so allow for several
|
|
retries, both at byte level and at the firmware load level. */
|
|
while (retries < 5) {
|
|
cx18_av_write4(cx, CXADEC_CHIP_CTRL, 0x00010000);
|
|
cx18_av_write(cx, CXADEC_STD_DET_CTL, 0xf6);
|
|
|
|
/* Reset the Mako core (Register is undocumented.) */
|
|
cx18_av_write4(cx, 0x8100, 0x00010000);
|
|
|
|
/* Put the 8051 in reset and enable firmware upload */
|
|
cx18_av_write4(cx, CXADEC_DL_CTL, 0x0F000000);
|
|
|
|
ptr = fw->data;
|
|
size = fw->size;
|
|
|
|
for (i = 0; i < size; i++) {
|
|
u32 dl_control = 0x0F000000 | i | ((u32)ptr[i] << 16);
|
|
u32 value = 0;
|
|
int retries;
|
|
|
|
for (retries = 0; retries < 5; retries++) {
|
|
cx18_av_write4(cx, CXADEC_DL_CTL, dl_control);
|
|
udelay(10);
|
|
value = cx18_av_read4(cx, CXADEC_DL_CTL);
|
|
if (value == dl_control)
|
|
break;
|
|
/* Check if we can correct the byte by changing
|
|
the address. We can only write the lower
|
|
address byte of the address. */
|
|
if ((value & 0x3F00) != (dl_control & 0x3F00)) {
|
|
retries = 5;
|
|
break;
|
|
}
|
|
}
|
|
if (retries >= 5)
|
|
break;
|
|
}
|
|
if (i == size)
|
|
break;
|
|
retries++;
|
|
}
|
|
if (retries >= 5) {
|
|
CX18_ERR("unable to load firmware %s\n", FWFILE);
|
|
release_firmware(fw);
|
|
return -EIO;
|
|
}
|
|
|
|
cx18_av_write4(cx, CXADEC_DL_CTL, 0x13000000 | fw->size);
|
|
|
|
/* Output to the 416 */
|
|
cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x78000);
|
|
|
|
/* Audio input control 1 set to Sony mode */
|
|
/* Audio output input 2 is 0 for slave operation input */
|
|
/* 0xC4000914[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
|
|
/* 0xC4000914[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
|
|
after WS transition for first bit of audio word. */
|
|
cx18_av_write4(cx, CXADEC_I2S_IN_CTL, 0x000000A0);
|
|
|
|
/* Audio output control 1 is set to Sony mode */
|
|
/* Audio output control 2 is set to 1 for master mode */
|
|
/* 0xC4000918[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
|
|
/* 0xC4000918[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
|
|
after WS transition for first bit of audio word. */
|
|
/* 0xC4000918[8]: 0 = slave operation, 1 = master (SCK_OUT and WS_OUT
|
|
are generated) */
|
|
cx18_av_write4(cx, CXADEC_I2S_OUT_CTL, 0x000001A0);
|
|
|
|
/* set alt I2s master clock to /16 and enable alt divider i2s
|
|
passthrough */
|
|
cx18_av_write4(cx, CXADEC_PIN_CFG3, 0x5000B687);
|
|
|
|
cx18_av_write4(cx, CXADEC_STD_DET_CTL, 0x000000F6);
|
|
/* CxDevWrReg(CXADEC_STD_DET_CTL, 0x000000FF); */
|
|
|
|
/* Set bit 0 in register 0x9CC to signify that this is MiniMe. */
|
|
/* Register 0x09CC is defined by the Merlin firmware, and doesn't
|
|
have a name in the spec. */
|
|
cx18_av_write4(cx, 0x09CC, 1);
|
|
|
|
v = read_reg(CX18_AUDIO_ENABLE);
|
|
/* If bit 11 is 1 */
|
|
if (v & 0x800)
|
|
write_reg(v & 0xFFFFFBFF, CX18_AUDIO_ENABLE); /* Clear bit 10 */
|
|
|
|
/* Enable WW auto audio standard detection */
|
|
v = cx18_av_read4(cx, CXADEC_STD_DET_CTL);
|
|
v |= 0xFF; /* Auto by default */
|
|
v |= 0x400; /* Stereo by default */
|
|
v |= 0x14000000;
|
|
cx18_av_write4(cx, CXADEC_STD_DET_CTL, v);
|
|
|
|
release_firmware(fw);
|
|
|
|
CX18_INFO("loaded %s firmware (%d bytes)\n", FWFILE, size);
|
|
return 0;
|
|
}
|