2 * cx18 ADEC firmware functions
4 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 #include "cx18-driver.h"
23 #include <linux/firmware.h>
25 #define FWFILE "v4l-cx23418-dig.fw"
27 int cx18_av_loadfw(struct cx18 *cx)
29 const struct firmware *fw = NULL;
35 if (request_firmware(&fw, FWFILE, &cx->dev->dev) != 0) {
36 CX18_ERR("unable to open firmware %s\n", FWFILE);
40 cx18_av_write4(cx, CXADEC_CHIP_CTRL, 0x00010000);
41 cx18_av_write(cx, CXADEC_STD_DET_CTL, 0xf6); /* Byte 0 */
43 /* Reset the Mako core (Register is undocumented.) */
44 cx18_av_write4(cx, 0x8100, 0x00010000);
46 /* Put the 8051 in reset and enable firmware upload */
47 cx18_av_write4(cx, CXADEC_DL_CTL, 0x0F000000);
52 for (i = 0; i < size; i++) {
53 u32 dl_control = 0x0F000000 | ((u32)ptr[i] << 16);
57 for (retries = 0; retries < 5; retries++) {
58 cx18_av_write4(cx, CXADEC_DL_CTL, dl_control);
59 value = cx18_av_read4(cx, CXADEC_DL_CTL);
60 if ((value & 0x3F00) == (dl_control & 0x3F00))
64 CX18_ERR("unable to load firmware %s\n", FWFILE);
70 cx18_av_write4(cx, CXADEC_DL_CTL, 0x13000000 | fw->size);
72 /* Output to the 416 */
73 cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x78000);
75 /* Audio input control 1 set to Sony mode */
76 /* Audio output input 2 is 0 for slave operation input */
77 /* 0xC4000914[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
78 /* 0xC4000914[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
79 after WS transition for first bit of audio word. */
80 cx18_av_write4(cx, CXADEC_I2S_IN_CTL, 0x000000A0);
82 /* Audio output control 1 is set to Sony mode */
83 /* Audio output control 2 is set to 1 for master mode */
84 /* 0xC4000918[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
85 /* 0xC4000918[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
86 after WS transition for first bit of audio word. */
87 /* 0xC4000918[8]: 0 = slave operation, 1 = master (SCK_OUT and WS_OUT
89 cx18_av_write4(cx, CXADEC_I2S_OUT_CTL, 0x000001A0);
91 /* set alt I2s master clock to /16 and enable alt divider i2s
93 cx18_av_write4(cx, CXADEC_PIN_CFG3, 0x5000B687);
95 cx18_av_write4(cx, CXADEC_STD_DET_CTL, 0x000000F6);
96 /* CxDevWrReg(CXADEC_STD_DET_CTL, 0x000000FF); */
98 /* Set bit 0 in register 0x9CC to signify that this is MiniMe. */
99 /* Register 0x09CC is defined by the Merlin firmware, and doesn't
100 have a name in the spec. */
101 cx18_av_write4(cx, 0x09CC, 1);
103 #define CX18_AUDIO_ENABLE 0xc72014
104 v = read_reg(CX18_AUDIO_ENABLE);
107 write_reg(v & 0xFFFFFBFF, CX18_AUDIO_ENABLE); /* Clear bit 10 */
109 /* Enable WW auto audio standard detection */
110 v = cx18_av_read4(cx, CXADEC_STD_DET_CTL);
111 v |= 0xFF; /* Auto by default */
112 v |= 0x400; /* Stereo by default */
114 cx18_av_write4(cx, CXADEC_STD_DET_CTL, v);
116 release_firmware(fw);
118 CX18_INFO("loaded %s firmware (%d bytes)\n", FWFILE, size);