--- /dev/null
+/*
+ ivtv firmware functions.
+ Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
+ Copyright (C) 2004 Chris Kennedy <c@groovy.org>
+ Copyright (C) 2005-2007 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "ivtv-driver.h"
+#include "ivtv-mailbox.h"
+#include "ivtv-firmware.h"
+#include "ivtv-yuv.h"
+#include "ivtv-ioctl.h"
+#include "ivtv-cards.h"
+#include <linux/firmware.h>
+#include <media/saa7127.h>
+
+#define IVTV_MASK_SPU_ENABLE 0xFFFFFFFE
+#define IVTV_MASK_VPU_ENABLE15 0xFFFFFFF6
+#define IVTV_MASK_VPU_ENABLE16 0xFFFFFFFB
+#define IVTV_CMD_VDM_STOP 0x00000000
+#define IVTV_CMD_AO_STOP 0x00000005
+#define IVTV_CMD_APU_PING 0x00000000
+#define IVTV_CMD_VPU_STOP15 0xFFFFFFFE
+#define IVTV_CMD_VPU_STOP16 0xFFFFFFEE
+#define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF
+#define IVTV_CMD_SPU_STOP 0x00000001
+#define IVTV_CMD_SDRAM_PRECHARGE_INIT 0x0000001A
+#define IVTV_CMD_SDRAM_REFRESH_INIT 0x80000640
+#define IVTV_SDRAM_SLEEPTIME 600
+
+#define IVTV_DECODE_INIT_MPEG_FILENAME "v4l-cx2341x-init.mpg"
+#define IVTV_DECODE_INIT_MPEG_SIZE (152*1024)
+
+/* Encoder/decoder firmware sizes */
+#define IVTV_FW_ENC_SIZE (376836)
+#define IVTV_FW_DEC_SIZE (256*1024)
+
+static int load_fw_direct(const char *fn, volatile u8 __iomem *mem, struct ivtv *itv, long size)
+{
+ const struct firmware *fw = NULL;
+ int retries = 3;
+
+retry:
+ if (retries && request_firmware(&fw, fn, &itv->pdev->dev) == 0) {
+ int i;
+ volatile u32 __iomem *dst = (volatile u32 __iomem *)mem;
+ const u32 *src = (const u32 *)fw->data;
+
+ if (fw->size != size) {
+ /* Due to race conditions in firmware loading (esp. with udev <0.95)
+ the wrong file was sometimes loaded. So we check filesizes to
+ see if at least the right-sized file was loaded. If not, then we
+ retry. */
+ IVTV_INFO("Retry: file loaded was not %s (expected size %ld, got %zu)\n", fn, size, fw->size);
+ release_firmware(fw);
+ retries--;
+ goto retry;
+ }
+ for (i = 0; i < fw->size; i += 4) {
+ /* no need for endianness conversion on the ppc */
+ __raw_writel(*src, dst);
+ dst++;
+ src++;
+ }
+ IVTV_INFO("Loaded %s firmware (%zu bytes)\n", fn, fw->size);
+ release_firmware(fw);
+ return size;
+ }
+ IVTV_ERR("Unable to open firmware %s (must be %ld bytes)\n", fn, size);
+ IVTV_ERR("Did you put the firmware in the hotplug firmware directory?\n");
+ return -ENOMEM;
+}
+
+void ivtv_halt_firmware(struct ivtv *itv)
+{
+ IVTV_DEBUG_INFO("Preparing for firmware halt.\n");
+ if (itv->has_cx23415 && itv->dec_mbox.mbox)
+ ivtv_vapi(itv, CX2341X_DEC_HALT_FW, 0);
+ if (itv->enc_mbox.mbox)
+ ivtv_vapi(itv, CX2341X_ENC_HALT_FW, 0);
+
+ ivtv_msleep_timeout(10, 0);
+ itv->enc_mbox.mbox = itv->dec_mbox.mbox = NULL;
+
+ IVTV_DEBUG_INFO("Stopping VDM\n");
+ write_reg(IVTV_CMD_VDM_STOP, IVTV_REG_VDM);
+
+ IVTV_DEBUG_INFO("Stopping AO\n");
+ write_reg(IVTV_CMD_AO_STOP, IVTV_REG_AO);
+
+ IVTV_DEBUG_INFO("pinging (?) APU\n");
+ write_reg(IVTV_CMD_APU_PING, IVTV_REG_APU);
+
+ IVTV_DEBUG_INFO("Stopping VPU\n");
+ if (!itv->has_cx23415)
+ write_reg(IVTV_CMD_VPU_STOP16, IVTV_REG_VPU);
+ else
+ write_reg(IVTV_CMD_VPU_STOP15, IVTV_REG_VPU);
+
+ IVTV_DEBUG_INFO("Resetting Hw Blocks\n");
+ write_reg(IVTV_CMD_HW_BLOCKS_RST, IVTV_REG_HW_BLOCKS);
+
+ IVTV_DEBUG_INFO("Stopping SPU\n");
+ write_reg(IVTV_CMD_SPU_STOP, IVTV_REG_SPU);
+
+ ivtv_msleep_timeout(10, 0);
+
+ IVTV_DEBUG_INFO("init Encoder SDRAM pre-charge\n");
+ write_reg(IVTV_CMD_SDRAM_PRECHARGE_INIT, IVTV_REG_ENC_SDRAM_PRECHARGE);
+
+ IVTV_DEBUG_INFO("init Encoder SDRAM refresh to 1us\n");
+ write_reg(IVTV_CMD_SDRAM_REFRESH_INIT, IVTV_REG_ENC_SDRAM_REFRESH);
+
+ if (itv->has_cx23415) {
+ IVTV_DEBUG_INFO("init Decoder SDRAM pre-charge\n");
+ write_reg(IVTV_CMD_SDRAM_PRECHARGE_INIT, IVTV_REG_DEC_SDRAM_PRECHARGE);
+
+ IVTV_DEBUG_INFO("init Decoder SDRAM refresh to 1us\n");
+ write_reg(IVTV_CMD_SDRAM_REFRESH_INIT, IVTV_REG_DEC_SDRAM_REFRESH);
+ }
+
+ IVTV_DEBUG_INFO("Sleeping for %dms\n", IVTV_SDRAM_SLEEPTIME);
+ ivtv_msleep_timeout(IVTV_SDRAM_SLEEPTIME, 0);
+}
+
+void ivtv_firmware_versions(struct ivtv *itv)
+{
+ u32 data[CX2341X_MBOX_MAX_DATA];
+
+ /* Encoder */
+ ivtv_vapi_result(itv, data, CX2341X_ENC_GET_VERSION, 0);
+ IVTV_INFO("Encoder revision: 0x%08x\n", data[0]);
+
+ if (data[0] != 0x02060039)
+ IVTV_WARN("Recommended firmware version is 0x02060039.\n");
+
+ if (itv->has_cx23415) {
+ /* Decoder */
+ ivtv_vapi_result(itv, data, CX2341X_DEC_GET_VERSION, 0);
+ IVTV_INFO("Decoder revision: 0x%08x\n", data[0]);
+ }
+}
+
+static int ivtv_firmware_copy(struct ivtv *itv)
+{
+ IVTV_DEBUG_INFO("Loading encoder image\n");
+ if (load_fw_direct(CX2341X_FIRM_ENC_FILENAME,
+ itv->enc_mem, itv, IVTV_FW_ENC_SIZE) != IVTV_FW_ENC_SIZE) {
+ IVTV_DEBUG_WARN("failed loading encoder firmware\n");
+ return -3;
+ }
+ if (!itv->has_cx23415)
+ return 0;
+
+ IVTV_DEBUG_INFO("Loading decoder image\n");
+ if (load_fw_direct(CX2341X_FIRM_DEC_FILENAME,
+ itv->dec_mem, itv, IVTV_FW_DEC_SIZE) != IVTV_FW_DEC_SIZE) {
+ IVTV_DEBUG_WARN("failed loading decoder firmware\n");
+ return -1;
+ }
+ return 0;
+}
+
+static volatile struct ivtv_mailbox __iomem *ivtv_search_mailbox(const volatile u8 __iomem *mem, u32 size)
+{
+ int i;
+
+ /* mailbox is preceded by a 16 byte 'magic cookie' starting at a 256-byte
+ address boundary */
+ for (i = 0; i < size; i += 0x100) {
+ if (readl(mem + i) == 0x12345678 &&
+ readl(mem + i + 4) == 0x34567812 &&
+ readl(mem + i + 8) == 0x56781234 &&
+ readl(mem + i + 12) == 0x78123456) {
+ return (volatile struct ivtv_mailbox __iomem *)(mem + i + 16);
+ }
+ }
+ return NULL;
+}
+
+int ivtv_firmware_init(struct ivtv *itv)
+{
+ int err;
+
+ ivtv_halt_firmware(itv);
+
+ /* load firmware */
+ err = ivtv_firmware_copy(itv);
+ if (err) {
+ IVTV_DEBUG_WARN("Error %d loading firmware\n", err);
+ return err;
+ }
+
+ /* start firmware */
+ write_reg(read_reg(IVTV_REG_SPU) & IVTV_MASK_SPU_ENABLE, IVTV_REG_SPU);
+ ivtv_msleep_timeout(100, 0);
+ if (itv->has_cx23415)
+ write_reg(read_reg(IVTV_REG_VPU) & IVTV_MASK_VPU_ENABLE15, IVTV_REG_VPU);
+ else
+ write_reg(read_reg(IVTV_REG_VPU) & IVTV_MASK_VPU_ENABLE16, IVTV_REG_VPU);
+ ivtv_msleep_timeout(100, 0);
+
+ /* find mailboxes and ping firmware */
+ itv->enc_mbox.mbox = ivtv_search_mailbox(itv->enc_mem, IVTV_ENCODER_SIZE);
+ if (itv->enc_mbox.mbox == NULL)
+ IVTV_ERR("Encoder mailbox not found\n");
+ else if (ivtv_vapi(itv, CX2341X_ENC_PING_FW, 0)) {
+ IVTV_ERR("Encoder firmware dead!\n");
+ itv->enc_mbox.mbox = NULL;
+ }
+ if (itv->enc_mbox.mbox == NULL)
+ return -ENODEV;
+
+ if (!itv->has_cx23415)
+ return 0;
+
+ itv->dec_mbox.mbox = ivtv_search_mailbox(itv->dec_mem, IVTV_DECODER_SIZE);
+ if (itv->dec_mbox.mbox == NULL) {
+ IVTV_ERR("Decoder mailbox not found\n");
+ } else if (itv->has_cx23415 && ivtv_vapi(itv, CX2341X_DEC_PING_FW, 0)) {
+ IVTV_ERR("Decoder firmware dead!\n");
+ itv->dec_mbox.mbox = NULL;
+ } else {
+ /* Firmware okay, so check yuv output filter table */
+ ivtv_yuv_filter_check(itv);
+ }
+ return itv->dec_mbox.mbox ? 0 : -ENODEV;
+}
+
+void ivtv_init_mpeg_decoder(struct ivtv *itv)
+{
+ u32 data[CX2341X_MBOX_MAX_DATA];
+ long readbytes;
+ volatile u8 __iomem *mem_offset;
+
+ data[0] = 0;
+ data[1] = itv->cxhdl.width; /* YUV source width */
+ data[2] = itv->cxhdl.height;
+ data[3] = itv->cxhdl.audio_properties; /* Audio settings to use,
+ bitmap. see docs. */
+ if (ivtv_api(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, data)) {
+ IVTV_ERR("ivtv_init_mpeg_decoder failed to set decoder source\n");
+ return;
+ }
+
+ if (ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 1) != 0) {
+ IVTV_ERR("ivtv_init_mpeg_decoder failed to start playback\n");
+ return;
+ }
+ ivtv_api_get_data(&itv->dec_mbox, IVTV_MBOX_DMA, 2, data);
+ mem_offset = itv->dec_mem + data[1];
+
+ if ((readbytes = load_fw_direct(IVTV_DECODE_INIT_MPEG_FILENAME,
+ mem_offset, itv, IVTV_DECODE_INIT_MPEG_SIZE)) <= 0) {
+ IVTV_DEBUG_WARN("failed to read mpeg decoder initialisation file %s\n",
+ IVTV_DECODE_INIT_MPEG_FILENAME);
+ } else {
+ ivtv_vapi(itv, CX2341X_DEC_SCHED_DMA_FROM_HOST, 3, 0, readbytes, 0);
+ ivtv_msleep_timeout(100, 0);
+ }
+ ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 4, 0, 0, 0, 1);
+}
+
+/* Try to restart the card & restore previous settings */
+static int ivtv_firmware_restart(struct ivtv *itv)
+{
+ int rc = 0;
+ v4l2_std_id std;
+
+ if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)
+ /* Display test image during restart */
+ ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
+ SAA7127_INPUT_TYPE_TEST_IMAGE,
+ itv->card->video_outputs[itv->active_output].video_output,
+ 0);
+
+ mutex_lock(&itv->udma.lock);
+
+ rc = ivtv_firmware_init(itv);
+ if (rc) {
+ mutex_unlock(&itv->udma.lock);
+ return rc;
+ }
+
+ /* Allow settings to reload */
+ ivtv_mailbox_cache_invalidate(itv);
+
+ /* Restore encoder video standard */
+ std = itv->std;
+ itv->std = 0;
+ ivtv_s_std_enc(itv, std);
+
+ if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
+ ivtv_init_mpeg_decoder(itv);
+
+ /* Restore decoder video standard */
+ std = itv->std_out;
+ itv->std_out = 0;
+ ivtv_s_std_dec(itv, std);
+
+ /* Restore framebuffer if active */
+ if (itv->ivtvfb_restore)
+ itv->ivtvfb_restore(itv);
+
+ /* Restore alpha settings */
+ ivtv_set_osd_alpha(itv);
+
+ /* Restore normal output */
+ ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
+ SAA7127_INPUT_TYPE_NORMAL,
+ itv->card->video_outputs[itv->active_output].video_output,
+ 0);
+ }
+
+ mutex_unlock(&itv->udma.lock);
+ return rc;
+}
+
+/* Check firmware running state. The checks fall through
+ allowing multiple failures to be logged. */
+int ivtv_firmware_check(struct ivtv *itv, char *where)
+{
+ int res = 0;
+
+ /* Check encoder is still running */
+ if (ivtv_vapi(itv, CX2341X_ENC_PING_FW, 0) < 0) {
+ IVTV_WARN("Encoder has died : %s\n", where);
+ res = -1;
+ }
+
+ /* Also check audio. Only check if not in use & encoder is okay */
+ if (!res && !atomic_read(&itv->capturing) &&
+ (!atomic_read(&itv->decoding) ||
+ (atomic_read(&itv->decoding) < 2 && test_bit(IVTV_F_I_DEC_YUV,
+ &itv->i_flags)))) {
+
+ if (ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12) < 0) {
+ IVTV_WARN("Audio has died (Encoder OK) : %s\n", where);
+ res = -2;
+ }
+ }
+
+ if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
+ /* Second audio check. Skip if audio already failed */
+ if (res != -2 && read_dec(0x100) != read_dec(0x104)) {
+ /* Wait & try again to be certain. */
+ ivtv_msleep_timeout(14, 0);
+ if (read_dec(0x100) != read_dec(0x104)) {
+ IVTV_WARN("Audio has died (Decoder) : %s\n",
+ where);
+ res = -1;
+ }
+ }
+
+ /* Check decoder is still running */
+ if (ivtv_vapi(itv, CX2341X_DEC_PING_FW, 0) < 0) {
+ IVTV_WARN("Decoder has died : %s\n", where);
+ res = -1;
+ }
+ }
+
+ /* If something failed & currently idle, try to reload */
+ if (res && !atomic_read(&itv->capturing) &&
+ !atomic_read(&itv->decoding)) {
+ IVTV_INFO("Detected in %s that firmware had failed - "
+ "Reloading\n", where);
+ res = ivtv_firmware_restart(itv);
+ /*
+ * Even if restarted ok, still signal a problem had occurred.
+ * The caller can come through this function again to check
+ * if things are really ok after the restart.
+ */
+ if (!res) {
+ IVTV_INFO("Firmware restart okay\n");
+ res = -EAGAIN;
+ } else {
+ IVTV_INFO("Firmware restart failed\n");
+ }
+ } else if (res) {
+ res = -EIO;
+ }
+
+ return res;
+}
+
+MODULE_FIRMWARE(CX2341X_FIRM_ENC_FILENAME);
+MODULE_FIRMWARE(CX2341X_FIRM_DEC_FILENAME);
+MODULE_FIRMWARE(IVTV_DECODE_INIT_MPEG_FILENAME);
Code Review / kvmfornfv.git / blobdiff