2 ivtv firmware functions.
3 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
4 Copyright (C) 2004 Chris Kennedy <c@groovy.org>
5 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "ivtv-driver.h"
23 #include "ivtv-mailbox.h"
24 #include "ivtv-firmware.h"
25 #include <linux/firmware.h>
27 #define IVTV_MASK_SPU_ENABLE 0xFFFFFFFE
28 #define IVTV_MASK_VPU_ENABLE15 0xFFFFFFF6
29 #define IVTV_MASK_VPU_ENABLE16 0xFFFFFFFB
30 #define IVTV_CMD_VDM_STOP 0x00000000
31 #define IVTV_CMD_AO_STOP 0x00000005
32 #define IVTV_CMD_APU_PING 0x00000000
33 #define IVTV_CMD_VPU_STOP15 0xFFFFFFFE
34 #define IVTV_CMD_VPU_STOP16 0xFFFFFFEE
35 #define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF
36 #define IVTV_CMD_SPU_STOP 0x00000001
37 #define IVTV_CMD_SDRAM_PRECHARGE_INIT 0x0000001A
38 #define IVTV_CMD_SDRAM_REFRESH_INIT 0x80000640
39 #define IVTV_SDRAM_SLEEPTIME (60 * HZ / 100) /* 600 ms */
41 #define IVTV_DECODE_INIT_MPEG_FILENAME "v4l-cx2341x-init.mpg"
42 #define IVTV_DECODE_INIT_MPEG_SIZE (152*1024)
44 /* Encoder/decoder firmware sizes */
45 #define IVTV_FW_ENC_SIZE (376836)
46 #define IVTV_FW_DEC_SIZE (256*1024)
48 static int load_fw_direct(const char *fn, volatile u8 __iomem *mem, struct ivtv *itv, long size)
50 const struct firmware *fw = NULL;
54 if (retries && request_firmware(&fw, fn, &itv->dev->dev) == 0) {
56 volatile u32 __iomem *dst = (volatile u32 __iomem *)mem;
57 const u32 *src = (const u32 *)fw->data;
59 if (fw->size != size) {
60 /* Due to race conditions in firmware loading (esp. with udev <0.95)
61 the wrong file was sometimes loaded. So we check filesizes to
62 see if at least the right-sized file was loaded. If not, then we
64 IVTV_INFO("retry: file loaded was not %s (expected size %ld, got %zd)\n", fn, size, fw->size);
69 for (i = 0; i < fw->size; i += 4) {
70 /* no need for endianness conversion on the ppc */
71 __raw_writel(*src, dst);
76 IVTV_INFO("loaded %s firmware (%zd bytes)\n", fn, fw->size);
79 IVTV_ERR("unable to open firmware %s (must be %ld bytes)\n", fn, size);
80 IVTV_ERR("did you put the firmware in the hotplug firmware directory?\n");
84 void ivtv_halt_firmware(struct ivtv *itv)
86 IVTV_DEBUG_INFO("Preparing for firmware halt.\n");
87 if (itv->has_cx23415 && itv->dec_mbox.mbox)
88 ivtv_vapi(itv, CX2341X_DEC_HALT_FW, 0);
89 if (itv->enc_mbox.mbox)
90 ivtv_vapi(itv, CX2341X_ENC_HALT_FW, 0);
92 ivtv_sleep_timeout(HZ / 100, 0);
93 itv->enc_mbox.mbox = itv->dec_mbox.mbox = NULL;
95 IVTV_DEBUG_INFO("Stopping VDM\n");
96 write_reg(IVTV_CMD_VDM_STOP, IVTV_REG_VDM);
98 IVTV_DEBUG_INFO("Stopping AO\n");
99 write_reg(IVTV_CMD_AO_STOP, IVTV_REG_AO);
101 IVTV_DEBUG_INFO("pinging (?) APU\n");
102 write_reg(IVTV_CMD_APU_PING, IVTV_REG_APU);
104 IVTV_DEBUG_INFO("Stopping VPU\n");
105 if (!itv->has_cx23415)
106 write_reg(IVTV_CMD_VPU_STOP16, IVTV_REG_VPU);
108 write_reg(IVTV_CMD_VPU_STOP15, IVTV_REG_VPU);
110 IVTV_DEBUG_INFO("Resetting Hw Blocks\n");
111 write_reg(IVTV_CMD_HW_BLOCKS_RST, IVTV_REG_HW_BLOCKS);
113 IVTV_DEBUG_INFO("Stopping SPU\n");
114 write_reg(IVTV_CMD_SPU_STOP, IVTV_REG_SPU);
116 ivtv_sleep_timeout(HZ / 100, 0);
118 IVTV_DEBUG_INFO("init Encoder SDRAM pre-charge\n");
119 write_reg(IVTV_CMD_SDRAM_PRECHARGE_INIT, IVTV_REG_ENC_SDRAM_PRECHARGE);
121 IVTV_DEBUG_INFO("init Encoder SDRAM refresh to 1us\n");
122 write_reg(IVTV_CMD_SDRAM_REFRESH_INIT, IVTV_REG_ENC_SDRAM_REFRESH);
124 if (itv->has_cx23415) {
125 IVTV_DEBUG_INFO("init Decoder SDRAM pre-charge\n");
126 write_reg(IVTV_CMD_SDRAM_PRECHARGE_INIT, IVTV_REG_DEC_SDRAM_PRECHARGE);
128 IVTV_DEBUG_INFO("init Decoder SDRAM refresh to 1us\n");
129 write_reg(IVTV_CMD_SDRAM_REFRESH_INIT, IVTV_REG_DEC_SDRAM_REFRESH);
132 IVTV_DEBUG_INFO("Sleeping for %dms (600 recommended)\n",
133 (int)(IVTV_SDRAM_SLEEPTIME * 1000 / HZ));
134 ivtv_sleep_timeout(IVTV_SDRAM_SLEEPTIME, 0);
137 void ivtv_firmware_versions(struct ivtv *itv)
139 u32 data[CX2341X_MBOX_MAX_DATA];
142 ivtv_vapi_result(itv, data, CX2341X_ENC_GET_VERSION, 0);
143 IVTV_INFO("Encoder revision: 0x%08x\n", data[0]);
145 if (data[0] != 0x02060039)
146 IVTV_WARN("Recommended firmware version is 0x02060039.\n");
148 if (itv->has_cx23415) {
150 ivtv_vapi_result(itv, data, CX2341X_DEC_GET_VERSION, 0);
151 IVTV_INFO("Decoder revision: 0x%08x\n", data[0]);
155 static int ivtv_firmware_copy(struct ivtv *itv)
157 IVTV_DEBUG_INFO("Loading encoder image\n");
158 if (load_fw_direct(CX2341X_FIRM_ENC_FILENAME,
159 itv->enc_mem, itv, IVTV_FW_ENC_SIZE) != IVTV_FW_ENC_SIZE) {
160 IVTV_DEBUG_WARN("failed loading encoder firmware\n");
163 if (!itv->has_cx23415)
166 IVTV_DEBUG_INFO("Loading decoder image\n");
167 if (load_fw_direct(CX2341X_FIRM_DEC_FILENAME,
168 itv->dec_mem, itv, IVTV_FW_DEC_SIZE) != IVTV_FW_DEC_SIZE) {
169 IVTV_DEBUG_WARN("failed loading decoder firmware\n");
175 static volatile struct ivtv_mailbox __iomem *ivtv_search_mailbox(const volatile u8 __iomem *mem, u32 size)
179 /* mailbox is preceeded by a 16 byte 'magic cookie' starting at a 256-byte
181 for (i = 0; i < size; i += 0x100) {
182 if (readl(mem + i) == 0x12345678 &&
183 readl(mem + i + 4) == 0x34567812 &&
184 readl(mem + i + 8) == 0x56781234 &&
185 readl(mem + i + 12) == 0x78123456) {
186 return (volatile struct ivtv_mailbox __iomem *)(mem + i + 16);
192 int ivtv_firmware_init(struct ivtv *itv)
196 ivtv_halt_firmware(itv);
199 err = ivtv_firmware_copy(itv);
201 IVTV_DEBUG_WARN("Error %d loading firmware\n", err);
206 write_reg(read_reg(IVTV_REG_SPU) & IVTV_MASK_SPU_ENABLE, IVTV_REG_SPU);
207 ivtv_sleep_timeout(HZ / 10, 0);
208 if (itv->has_cx23415)
209 write_reg(read_reg(IVTV_REG_VPU) & IVTV_MASK_VPU_ENABLE15, IVTV_REG_VPU);
211 write_reg(read_reg(IVTV_REG_VPU) & IVTV_MASK_VPU_ENABLE16, IVTV_REG_VPU);
212 ivtv_sleep_timeout(HZ / 10, 0);
214 /* find mailboxes and ping firmware */
215 itv->enc_mbox.mbox = ivtv_search_mailbox(itv->enc_mem, IVTV_ENCODER_SIZE);
216 if (itv->enc_mbox.mbox == NULL)
217 IVTV_ERR("Encoder mailbox not found\n");
218 else if (ivtv_vapi(itv, CX2341X_ENC_PING_FW, 0)) {
219 IVTV_ERR("Encoder firmware dead!\n");
220 itv->enc_mbox.mbox = NULL;
222 if (itv->enc_mbox.mbox == NULL)
225 if (!itv->has_cx23415)
228 itv->dec_mbox.mbox = ivtv_search_mailbox(itv->dec_mem, IVTV_DECODER_SIZE);
229 if (itv->dec_mbox.mbox == NULL)
230 IVTV_ERR("Decoder mailbox not found\n");
231 else if (itv->has_cx23415 && ivtv_vapi(itv, CX2341X_DEC_PING_FW, 0)) {
232 IVTV_ERR("Decoder firmware dead!\n");
233 itv->dec_mbox.mbox = NULL;
235 return itv->dec_mbox.mbox ? 0 : -ENODEV;
238 void ivtv_init_mpeg_decoder(struct ivtv *itv)
240 u32 data[CX2341X_MBOX_MAX_DATA];
242 volatile u8 __iomem *mem_offset;
245 data[1] = itv->params.width; /* YUV source width */
246 data[2] = itv->params.height;
247 data[3] = itv->params.audio_properties; /* Audio settings to use,
249 if (ivtv_api(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, data)) {
250 IVTV_ERR("ivtv_init_mpeg_decoder failed to set decoder source\n");
254 if (ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 1) != 0) {
255 IVTV_ERR("ivtv_init_mpeg_decoder failed to start playback\n");
258 ivtv_api_get_data(&itv->dec_mbox, IVTV_MBOX_DMA, data);
259 mem_offset = itv->dec_mem + data[1];
261 if ((readbytes = load_fw_direct(IVTV_DECODE_INIT_MPEG_FILENAME,
262 mem_offset, itv, IVTV_DECODE_INIT_MPEG_SIZE)) <= 0) {
263 IVTV_DEBUG_WARN("failed to read mpeg decoder initialisation file %s\n",
264 IVTV_DECODE_INIT_MPEG_FILENAME);
266 ivtv_vapi(itv, CX2341X_DEC_SCHED_DMA_FROM_HOST, 3, 0, readbytes, 0);
267 ivtv_sleep_timeout(HZ / 10, 0);
269 ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 4, 0, 0, 0, 1);