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1c1e45d1 HV |
1 | /* |
2 | * cx18 ADEC firmware functions | |
3 | * | |
4 | * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> | |
6afdeaf8 | 5 | * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net> |
1c1e45d1 HV |
6 | * |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version 2 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
20 | * 02110-1301, USA. | |
21 | */ | |
22 | ||
23 | #include "cx18-driver.h" | |
b1526421 | 24 | #include "cx18-io.h" |
1c1e45d1 HV |
25 | #include <linux/firmware.h> |
26 | ||
33b55a0a AW |
27 | #define CX18_AUDIO_ENABLE 0xc72014 |
28 | #define CX18_AI1_MUX_MASK 0x30 | |
29 | #define CX18_AI1_MUX_I2S1 0x00 | |
30 | #define CX18_AI1_MUX_I2S2 0x10 | |
31 | #define CX18_AI1_MUX_843_I2S 0x20 | |
32 | #define CX18_AI1_MUX_INVALID 0x30 | |
33 | ||
1c1e45d1 HV |
34 | #define FWFILE "v4l-cx23418-dig.fw" |
35 | ||
1bd8e15a AW |
36 | static int cx18_av_verifyfw(struct cx18 *cx, const struct firmware *fw) |
37 | { | |
38 | struct v4l2_subdev *sd = &cx->av_state.sd; | |
39 | int ret = 0; | |
40 | const u8 *data; | |
41 | u32 size; | |
42 | int addr; | |
43 | u32 expected, dl_control; | |
44 | ||
45 | /* Ensure we put the 8051 in reset and enable firmware upload mode */ | |
46 | dl_control = cx18_av_read4(cx, CXADEC_DL_CTL); | |
47 | do { | |
48 | dl_control &= 0x00ffffff; | |
49 | dl_control |= 0x0f000000; | |
50 | cx18_av_write4_noretry(cx, CXADEC_DL_CTL, dl_control); | |
51 | dl_control = cx18_av_read4(cx, CXADEC_DL_CTL); | |
52 | } while ((dl_control & 0xff000000) != 0x0f000000); | |
53 | ||
54 | /* Read and auto increment until at address 0x0000 */ | |
55 | while (dl_control & 0x3fff) | |
56 | dl_control = cx18_av_read4(cx, CXADEC_DL_CTL); | |
57 | ||
58 | data = fw->data; | |
59 | size = fw->size; | |
60 | for (addr = 0; addr < size; addr++) { | |
61 | dl_control &= 0xffff3fff; /* ignore top 2 bits of address */ | |
62 | expected = 0x0f000000 | ((u32)data[addr] << 16) | addr; | |
63 | if (expected != dl_control) { | |
64 | CX18_ERR_DEV(sd, "verification of %s firmware load " | |
65 | "failed: expected %#010x got %#010x\n", | |
66 | FWFILE, expected, dl_control); | |
67 | ret = -EIO; | |
68 | break; | |
69 | } | |
70 | dl_control = cx18_av_read4(cx, CXADEC_DL_CTL); | |
71 | } | |
72 | if (ret == 0) | |
73 | CX18_INFO_DEV(sd, "verified load of %s firmware (%d bytes)\n", | |
74 | FWFILE, size); | |
75 | return ret; | |
76 | } | |
77 | ||
1c1e45d1 HV |
78 | int cx18_av_loadfw(struct cx18 *cx) |
79 | { | |
6246d4e1 | 80 | struct v4l2_subdev *sd = &cx->av_state.sd; |
1c1e45d1 HV |
81 | const struct firmware *fw = NULL; |
82 | u32 size; | |
33b55a0a | 83 | u32 u, v; |
9b8a3e4c | 84 | const u8 *ptr; |
1c1e45d1 | 85 | int i; |
c6eb8eaf | 86 | int retries1 = 0; |
1c1e45d1 | 87 | |
3d05913d | 88 | if (request_firmware(&fw, FWFILE, &cx->pci_dev->dev) != 0) { |
6246d4e1 | 89 | CX18_ERR_DEV(sd, "unable to open firmware %s\n", FWFILE); |
1c1e45d1 HV |
90 | return -EINVAL; |
91 | } | |
92 | ||
f313da11 HV |
93 | /* The firmware load often has byte errors, so allow for several |
94 | retries, both at byte level and at the firmware load level. */ | |
c6eb8eaf | 95 | while (retries1 < 5) { |
ced07371 AW |
96 | cx18_av_write4_expect(cx, CXADEC_CHIP_CTRL, 0x00010000, |
97 | 0x00008430, 0xffffffff); /* cx25843 */ | |
98 | cx18_av_write_expect(cx, CXADEC_STD_DET_CTL, 0xf6, 0xf6, 0xff); | |
1c1e45d1 | 99 | |
ced07371 AW |
100 | /* Reset the Mako core, Register is alias of CXADEC_CHIP_CTRL */ |
101 | cx18_av_write4_expect(cx, 0x8100, 0x00010000, | |
102 | 0x00008430, 0xffffffff); /* cx25843 */ | |
1c1e45d1 | 103 | |
f313da11 | 104 | /* Put the 8051 in reset and enable firmware upload */ |
d267d851 | 105 | cx18_av_write4_noretry(cx, CXADEC_DL_CTL, 0x0F000000); |
1c1e45d1 | 106 | |
f313da11 HV |
107 | ptr = fw->data; |
108 | size = fw->size; | |
1c1e45d1 | 109 | |
f313da11 HV |
110 | for (i = 0; i < size; i++) { |
111 | u32 dl_control = 0x0F000000 | i | ((u32)ptr[i] << 16); | |
112 | u32 value = 0; | |
c6eb8eaf | 113 | int retries2; |
d267d851 | 114 | int unrec_err = 0; |
1c1e45d1 | 115 | |
f7823f8f | 116 | for (retries2 = 0; retries2 < CX18_MAX_MMIO_WR_RETRIES; |
d267d851 AW |
117 | retries2++) { |
118 | cx18_av_write4_noretry(cx, CXADEC_DL_CTL, | |
119 | dl_control); | |
f313da11 | 120 | udelay(10); |
3f75c616 | 121 | value = cx18_av_read4(cx, CXADEC_DL_CTL); |
f313da11 HV |
122 | if (value == dl_control) |
123 | break; | |
124 | /* Check if we can correct the byte by changing | |
125 | the address. We can only write the lower | |
126 | address byte of the address. */ | |
127 | if ((value & 0x3F00) != (dl_control & 0x3F00)) { | |
d267d851 | 128 | unrec_err = 1; |
f313da11 HV |
129 | break; |
130 | } | |
131 | } | |
f7823f8f | 132 | if (unrec_err || retries2 >= CX18_MAX_MMIO_WR_RETRIES) |
1c1e45d1 HV |
133 | break; |
134 | } | |
f313da11 HV |
135 | if (i == size) |
136 | break; | |
c6eb8eaf | 137 | retries1++; |
f313da11 | 138 | } |
c6eb8eaf | 139 | if (retries1 >= 5) { |
6246d4e1 | 140 | CX18_ERR_DEV(sd, "unable to load firmware %s\n", FWFILE); |
f313da11 HV |
141 | release_firmware(fw); |
142 | return -EIO; | |
1c1e45d1 HV |
143 | } |
144 | ||
ced07371 | 145 | cx18_av_write4_expect(cx, CXADEC_DL_CTL, |
1bd8e15a AW |
146 | 0x03000000 | fw->size, 0x03000000, 0x13000000); |
147 | ||
148 | CX18_INFO_DEV(sd, "loaded %s firmware (%d bytes)\n", FWFILE, size); | |
149 | ||
150 | if (cx18_av_verifyfw(cx, fw) == 0) | |
151 | cx18_av_write4_expect(cx, CXADEC_DL_CTL, | |
ced07371 | 152 | 0x13000000 | fw->size, 0x13000000, 0x13000000); |
1c1e45d1 HV |
153 | |
154 | /* Output to the 416 */ | |
155 | cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x78000); | |
156 | ||
157 | /* Audio input control 1 set to Sony mode */ | |
158 | /* Audio output input 2 is 0 for slave operation input */ | |
159 | /* 0xC4000914[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */ | |
160 | /* 0xC4000914[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge | |
161 | after WS transition for first bit of audio word. */ | |
162 | cx18_av_write4(cx, CXADEC_I2S_IN_CTL, 0x000000A0); | |
163 | ||
164 | /* Audio output control 1 is set to Sony mode */ | |
165 | /* Audio output control 2 is set to 1 for master mode */ | |
166 | /* 0xC4000918[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */ | |
167 | /* 0xC4000918[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge | |
168 | after WS transition for first bit of audio word. */ | |
169 | /* 0xC4000918[8]: 0 = slave operation, 1 = master (SCK_OUT and WS_OUT | |
170 | are generated) */ | |
171 | cx18_av_write4(cx, CXADEC_I2S_OUT_CTL, 0x000001A0); | |
172 | ||
903bfeac | 173 | /* set alt I2s master clock to /0x16 and enable alt divider i2s |
1c1e45d1 | 174 | passthrough */ |
903bfeac | 175 | cx18_av_write4(cx, CXADEC_PIN_CFG3, 0x5600B687); |
1c1e45d1 | 176 | |
ced07371 AW |
177 | cx18_av_write4_expect(cx, CXADEC_STD_DET_CTL, 0x000000F6, 0x000000F6, |
178 | 0x3F00FFFF); | |
1c1e45d1 HV |
179 | /* CxDevWrReg(CXADEC_STD_DET_CTL, 0x000000FF); */ |
180 | ||
181 | /* Set bit 0 in register 0x9CC to signify that this is MiniMe. */ | |
182 | /* Register 0x09CC is defined by the Merlin firmware, and doesn't | |
183 | have a name in the spec. */ | |
184 | cx18_av_write4(cx, 0x09CC, 1); | |
185 | ||
b1526421 AW |
186 | v = cx18_read_reg(cx, CX18_AUDIO_ENABLE); |
187 | /* If bit 11 is 1, clear bit 10 */ | |
1c1e45d1 | 188 | if (v & 0x800) |
072e6183 AW |
189 | cx18_write_reg_expect(cx, v & 0xFFFFFBFF, CX18_AUDIO_ENABLE, |
190 | 0, 0x400); | |
1c1e45d1 | 191 | |
33b55a0a AW |
192 | /* Toggle the AI1 MUX */ |
193 | v = cx18_read_reg(cx, CX18_AUDIO_ENABLE); | |
194 | u = v & CX18_AI1_MUX_MASK; | |
195 | v &= ~CX18_AI1_MUX_MASK; | |
196 | if (u == CX18_AI1_MUX_843_I2S || u == CX18_AI1_MUX_INVALID) { | |
197 | /* Switch to I2S1 */ | |
198 | v |= CX18_AI1_MUX_I2S1; | |
199 | cx18_write_reg_expect(cx, v | 0xb00, CX18_AUDIO_ENABLE, | |
200 | v, CX18_AI1_MUX_MASK); | |
201 | /* Switch back to the A/V decoder core I2S output */ | |
202 | v = (v & ~CX18_AI1_MUX_MASK) | CX18_AI1_MUX_843_I2S; | |
203 | } else { | |
204 | /* Switch to the A/V decoder core I2S output */ | |
205 | v |= CX18_AI1_MUX_843_I2S; | |
206 | cx18_write_reg_expect(cx, v | 0xb00, CX18_AUDIO_ENABLE, | |
207 | v, CX18_AI1_MUX_MASK); | |
208 | /* Switch back to I2S1 or I2S2 */ | |
209 | v = (v & ~CX18_AI1_MUX_MASK) | u; | |
210 | } | |
211 | cx18_write_reg_expect(cx, v | 0xb00, CX18_AUDIO_ENABLE, | |
212 | v, CX18_AI1_MUX_MASK); | |
213 | ||
1c1e45d1 HV |
214 | /* Enable WW auto audio standard detection */ |
215 | v = cx18_av_read4(cx, CXADEC_STD_DET_CTL); | |
216 | v |= 0xFF; /* Auto by default */ | |
217 | v |= 0x400; /* Stereo by default */ | |
218 | v |= 0x14000000; | |
ced07371 | 219 | cx18_av_write4_expect(cx, CXADEC_STD_DET_CTL, v, v, 0x3F00FFFF); |
1c1e45d1 HV |
220 | |
221 | release_firmware(fw); | |
1c1e45d1 HV |
222 | return 0; |
223 | } | |
8a7bf1d4 TG |
224 | |
225 | MODULE_FIRMWARE(FWFILE); |