| // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) |
| // |
| // This file is provided under a dual BSD/GPLv2 license. When using or |
| // redistributing this file, you may do so under either license. |
| // |
| // Copyright(c) 2018 Intel Corporation. All rights reserved. |
| // |
| // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> |
| // |
| // Generic IPC layer that can work over MMIO and SPI/I2C. PHY layer provided |
| // by platform driver code. |
| // |
| |
| #include <linux/mutex.h> |
| #include <linux/types.h> |
| |
| #include "sof-priv.h" |
| #include "sof-audio.h" |
| #include "ops.h" |
| |
| static void ipc_trace_message(struct snd_sof_dev *sdev, u32 msg_id); |
| static void ipc_stream_message(struct snd_sof_dev *sdev, u32 msg_cmd); |
| |
| /* |
| * IPC message Tx/Rx message handling. |
| */ |
| |
| /* SOF generic IPC data */ |
| struct snd_sof_ipc { |
| struct snd_sof_dev *sdev; |
| |
| /* protects messages and the disable flag */ |
| struct mutex tx_mutex; |
| /* disables further sending of ipc's */ |
| bool disable_ipc_tx; |
| |
| struct snd_sof_ipc_msg msg; |
| }; |
| |
| struct sof_ipc_ctrl_data_params { |
| size_t msg_bytes; |
| size_t hdr_bytes; |
| size_t pl_size; |
| size_t elems; |
| u32 num_msg; |
| u8 *src; |
| u8 *dst; |
| }; |
| |
| #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC) |
| static void ipc_log_header(struct device *dev, u8 *text, u32 cmd) |
| { |
| u8 *str; |
| u8 *str2 = NULL; |
| u32 glb; |
| u32 type; |
| |
| glb = cmd & SOF_GLB_TYPE_MASK; |
| type = cmd & SOF_CMD_TYPE_MASK; |
| |
| switch (glb) { |
| case SOF_IPC_GLB_REPLY: |
| str = "GLB_REPLY"; break; |
| case SOF_IPC_GLB_COMPOUND: |
| str = "GLB_COMPOUND"; break; |
| case SOF_IPC_GLB_TPLG_MSG: |
| str = "GLB_TPLG_MSG"; |
| switch (type) { |
| case SOF_IPC_TPLG_COMP_NEW: |
| str2 = "COMP_NEW"; break; |
| case SOF_IPC_TPLG_COMP_FREE: |
| str2 = "COMP_FREE"; break; |
| case SOF_IPC_TPLG_COMP_CONNECT: |
| str2 = "COMP_CONNECT"; break; |
| case SOF_IPC_TPLG_PIPE_NEW: |
| str2 = "PIPE_NEW"; break; |
| case SOF_IPC_TPLG_PIPE_FREE: |
| str2 = "PIPE_FREE"; break; |
| case SOF_IPC_TPLG_PIPE_CONNECT: |
| str2 = "PIPE_CONNECT"; break; |
| case SOF_IPC_TPLG_PIPE_COMPLETE: |
| str2 = "PIPE_COMPLETE"; break; |
| case SOF_IPC_TPLG_BUFFER_NEW: |
| str2 = "BUFFER_NEW"; break; |
| case SOF_IPC_TPLG_BUFFER_FREE: |
| str2 = "BUFFER_FREE"; break; |
| default: |
| str2 = "unknown type"; break; |
| } |
| break; |
| case SOF_IPC_GLB_PM_MSG: |
| str = "GLB_PM_MSG"; |
| switch (type) { |
| case SOF_IPC_PM_CTX_SAVE: |
| str2 = "CTX_SAVE"; break; |
| case SOF_IPC_PM_CTX_RESTORE: |
| str2 = "CTX_RESTORE"; break; |
| case SOF_IPC_PM_CTX_SIZE: |
| str2 = "CTX_SIZE"; break; |
| case SOF_IPC_PM_CLK_SET: |
| str2 = "CLK_SET"; break; |
| case SOF_IPC_PM_CLK_GET: |
| str2 = "CLK_GET"; break; |
| case SOF_IPC_PM_CLK_REQ: |
| str2 = "CLK_REQ"; break; |
| case SOF_IPC_PM_CORE_ENABLE: |
| str2 = "CORE_ENABLE"; break; |
| default: |
| str2 = "unknown type"; break; |
| } |
| break; |
| case SOF_IPC_GLB_COMP_MSG: |
| str = "GLB_COMP_MSG"; |
| switch (type) { |
| case SOF_IPC_COMP_SET_VALUE: |
| str2 = "SET_VALUE"; break; |
| case SOF_IPC_COMP_GET_VALUE: |
| str2 = "GET_VALUE"; break; |
| case SOF_IPC_COMP_SET_DATA: |
| str2 = "SET_DATA"; break; |
| case SOF_IPC_COMP_GET_DATA: |
| str2 = "GET_DATA"; break; |
| default: |
| str2 = "unknown type"; break; |
| } |
| break; |
| case SOF_IPC_GLB_STREAM_MSG: |
| str = "GLB_STREAM_MSG"; |
| switch (type) { |
| case SOF_IPC_STREAM_PCM_PARAMS: |
| str2 = "PCM_PARAMS"; break; |
| case SOF_IPC_STREAM_PCM_PARAMS_REPLY: |
| str2 = "PCM_REPLY"; break; |
| case SOF_IPC_STREAM_PCM_FREE: |
| str2 = "PCM_FREE"; break; |
| case SOF_IPC_STREAM_TRIG_START: |
| str2 = "TRIG_START"; break; |
| case SOF_IPC_STREAM_TRIG_STOP: |
| str2 = "TRIG_STOP"; break; |
| case SOF_IPC_STREAM_TRIG_PAUSE: |
| str2 = "TRIG_PAUSE"; break; |
| case SOF_IPC_STREAM_TRIG_RELEASE: |
| str2 = "TRIG_RELEASE"; break; |
| case SOF_IPC_STREAM_TRIG_DRAIN: |
| str2 = "TRIG_DRAIN"; break; |
| case SOF_IPC_STREAM_TRIG_XRUN: |
| str2 = "TRIG_XRUN"; break; |
| case SOF_IPC_STREAM_POSITION: |
| str2 = "POSITION"; break; |
| case SOF_IPC_STREAM_VORBIS_PARAMS: |
| str2 = "VORBIS_PARAMS"; break; |
| case SOF_IPC_STREAM_VORBIS_FREE: |
| str2 = "VORBIS_FREE"; break; |
| default: |
| str2 = "unknown type"; break; |
| } |
| break; |
| case SOF_IPC_FW_READY: |
| str = "FW_READY"; break; |
| case SOF_IPC_GLB_DAI_MSG: |
| str = "GLB_DAI_MSG"; |
| switch (type) { |
| case SOF_IPC_DAI_CONFIG: |
| str2 = "CONFIG"; break; |
| case SOF_IPC_DAI_LOOPBACK: |
| str2 = "LOOPBACK"; break; |
| default: |
| str2 = "unknown type"; break; |
| } |
| break; |
| case SOF_IPC_GLB_TRACE_MSG: |
| str = "GLB_TRACE_MSG"; break; |
| case SOF_IPC_GLB_TEST_MSG: |
| str = "GLB_TEST_MSG"; |
| switch (type) { |
| case SOF_IPC_TEST_IPC_FLOOD: |
| str2 = "IPC_FLOOD"; break; |
| default: |
| str2 = "unknown type"; break; |
| } |
| break; |
| default: |
| str = "unknown GLB command"; break; |
| } |
| |
| if (str2) |
| dev_dbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2); |
| else |
| dev_dbg(dev, "%s: 0x%x: %s\n", text, cmd, str); |
| } |
| #else |
| static inline void ipc_log_header(struct device *dev, u8 *text, u32 cmd) |
| { |
| if ((cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_TRACE_MSG) |
| dev_dbg(dev, "%s: 0x%x\n", text, cmd); |
| } |
| #endif |
| |
| /* wait for IPC message reply */ |
| static int tx_wait_done(struct snd_sof_ipc *ipc, struct snd_sof_ipc_msg *msg, |
| void *reply_data) |
| { |
| struct snd_sof_dev *sdev = ipc->sdev; |
| struct sof_ipc_cmd_hdr *hdr = msg->msg_data; |
| int ret; |
| |
| /* wait for DSP IPC completion */ |
| ret = wait_event_timeout(msg->waitq, msg->ipc_complete, |
| msecs_to_jiffies(sdev->ipc_timeout)); |
| |
| if (ret == 0) { |
| dev_err(sdev->dev, "error: ipc timed out for 0x%x size %d\n", |
| hdr->cmd, hdr->size); |
| snd_sof_handle_fw_exception(ipc->sdev); |
| ret = -ETIMEDOUT; |
| } else { |
| ret = msg->reply_error; |
| if (ret < 0) { |
| dev_err(sdev->dev, "error: ipc error for 0x%x size %zu\n", |
| hdr->cmd, msg->reply_size); |
| } else { |
| ipc_log_header(sdev->dev, "ipc tx succeeded", hdr->cmd); |
| if (msg->reply_size) |
| /* copy the data returned from DSP */ |
| memcpy(reply_data, msg->reply_data, |
| msg->reply_size); |
| } |
| } |
| |
| return ret; |
| } |
| |
| /* send IPC message from host to DSP */ |
| static int sof_ipc_tx_message_unlocked(struct snd_sof_ipc *ipc, u32 header, |
| void *msg_data, size_t msg_bytes, |
| void *reply_data, size_t reply_bytes) |
| { |
| struct snd_sof_dev *sdev = ipc->sdev; |
| struct snd_sof_ipc_msg *msg; |
| int ret; |
| |
| if (ipc->disable_ipc_tx) |
| return -ENODEV; |
| |
| /* |
| * The spin-lock is also still needed to protect message objects against |
| * other atomic contexts. |
| */ |
| spin_lock_irq(&sdev->ipc_lock); |
| |
| /* initialise the message */ |
| msg = &ipc->msg; |
| |
| msg->header = header; |
| msg->msg_size = msg_bytes; |
| msg->reply_size = reply_bytes; |
| msg->reply_error = 0; |
| |
| /* attach any data */ |
| if (msg_bytes) |
| memcpy(msg->msg_data, msg_data, msg_bytes); |
| |
| sdev->msg = msg; |
| |
| ret = snd_sof_dsp_send_msg(sdev, msg); |
| /* Next reply that we receive will be related to this message */ |
| if (!ret) |
| msg->ipc_complete = false; |
| |
| spin_unlock_irq(&sdev->ipc_lock); |
| |
| if (ret < 0) { |
| dev_err_ratelimited(sdev->dev, |
| "error: ipc tx failed with error %d\n", |
| ret); |
| return ret; |
| } |
| |
| ipc_log_header(sdev->dev, "ipc tx", msg->header); |
| |
| /* now wait for completion */ |
| if (!ret) |
| ret = tx_wait_done(ipc, msg, reply_data); |
| |
| return ret; |
| } |
| |
| /* send IPC message from host to DSP */ |
| int sof_ipc_tx_message(struct snd_sof_ipc *ipc, u32 header, |
| void *msg_data, size_t msg_bytes, void *reply_data, |
| size_t reply_bytes) |
| { |
| const struct sof_dsp_power_state target_state = { |
| .state = SOF_DSP_PM_D0, |
| }; |
| int ret; |
| |
| /* ensure the DSP is in D0 before sending a new IPC */ |
| ret = snd_sof_dsp_set_power_state(ipc->sdev, &target_state); |
| if (ret < 0) { |
| dev_err(ipc->sdev->dev, "error: resuming DSP %d\n", ret); |
| return ret; |
| } |
| |
| return sof_ipc_tx_message_no_pm(ipc, header, msg_data, msg_bytes, |
| reply_data, reply_bytes); |
| } |
| EXPORT_SYMBOL(sof_ipc_tx_message); |
| |
| /* |
| * send IPC message from host to DSP without modifying the DSP state. |
| * This will be used for IPC's that can be handled by the DSP |
| * even in a low-power D0 substate. |
| */ |
| int sof_ipc_tx_message_no_pm(struct snd_sof_ipc *ipc, u32 header, |
| void *msg_data, size_t msg_bytes, |
| void *reply_data, size_t reply_bytes) |
| { |
| int ret; |
| |
| if (msg_bytes > SOF_IPC_MSG_MAX_SIZE || |
| reply_bytes > SOF_IPC_MSG_MAX_SIZE) |
| return -ENOBUFS; |
| |
| /* Serialise IPC TX */ |
| mutex_lock(&ipc->tx_mutex); |
| |
| ret = sof_ipc_tx_message_unlocked(ipc, header, msg_data, msg_bytes, |
| reply_data, reply_bytes); |
| |
| mutex_unlock(&ipc->tx_mutex); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(sof_ipc_tx_message_no_pm); |
| |
| /* handle reply message from DSP */ |
| int snd_sof_ipc_reply(struct snd_sof_dev *sdev, u32 msg_id) |
| { |
| struct snd_sof_ipc_msg *msg = &sdev->ipc->msg; |
| |
| if (msg->ipc_complete) { |
| dev_err(sdev->dev, "error: no reply expected, received 0x%x", |
| msg_id); |
| return -EINVAL; |
| } |
| |
| /* wake up and return the error if we have waiters on this message ? */ |
| msg->ipc_complete = true; |
| wake_up(&msg->waitq); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_reply); |
| |
| /* DSP firmware has sent host a message */ |
| void snd_sof_ipc_msgs_rx(struct snd_sof_dev *sdev) |
| { |
| struct sof_ipc_cmd_hdr hdr; |
| u32 cmd, type; |
| int err = 0; |
| |
| /* read back header */ |
| snd_sof_ipc_msg_data(sdev, NULL, &hdr, sizeof(hdr)); |
| ipc_log_header(sdev->dev, "ipc rx", hdr.cmd); |
| |
| cmd = hdr.cmd & SOF_GLB_TYPE_MASK; |
| type = hdr.cmd & SOF_CMD_TYPE_MASK; |
| |
| /* check message type */ |
| switch (cmd) { |
| case SOF_IPC_GLB_REPLY: |
| dev_err(sdev->dev, "error: ipc reply unknown\n"); |
| break; |
| case SOF_IPC_FW_READY: |
| /* check for FW boot completion */ |
| if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS) { |
| err = sof_ops(sdev)->fw_ready(sdev, cmd); |
| if (err < 0) |
| sdev->fw_state = SOF_FW_BOOT_READY_FAILED; |
| else |
| sdev->fw_state = SOF_FW_BOOT_COMPLETE; |
| |
| /* wake up firmware loader */ |
| wake_up(&sdev->boot_wait); |
| } |
| break; |
| case SOF_IPC_GLB_COMPOUND: |
| case SOF_IPC_GLB_TPLG_MSG: |
| case SOF_IPC_GLB_PM_MSG: |
| case SOF_IPC_GLB_COMP_MSG: |
| break; |
| case SOF_IPC_GLB_STREAM_MSG: |
| /* need to pass msg id into the function */ |
| ipc_stream_message(sdev, hdr.cmd); |
| break; |
| case SOF_IPC_GLB_TRACE_MSG: |
| ipc_trace_message(sdev, type); |
| break; |
| default: |
| dev_err(sdev->dev, "error: unknown DSP message 0x%x\n", cmd); |
| break; |
| } |
| |
| ipc_log_header(sdev->dev, "ipc rx done", hdr.cmd); |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_msgs_rx); |
| |
| /* |
| * IPC trace mechanism. |
| */ |
| |
| static void ipc_trace_message(struct snd_sof_dev *sdev, u32 msg_id) |
| { |
| struct sof_ipc_dma_trace_posn posn; |
| |
| switch (msg_id) { |
| case SOF_IPC_TRACE_DMA_POSITION: |
| /* read back full message */ |
| snd_sof_ipc_msg_data(sdev, NULL, &posn, sizeof(posn)); |
| snd_sof_trace_update_pos(sdev, &posn); |
| break; |
| default: |
| dev_err(sdev->dev, "error: unhandled trace message %x\n", |
| msg_id); |
| break; |
| } |
| } |
| |
| /* |
| * IPC stream position. |
| */ |
| |
| static void ipc_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id) |
| { |
| struct snd_soc_component *scomp = sdev->component; |
| struct snd_sof_pcm_stream *stream; |
| struct sof_ipc_stream_posn posn; |
| struct snd_sof_pcm *spcm; |
| int direction; |
| |
| spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction); |
| if (!spcm) { |
| dev_err(sdev->dev, |
| "error: period elapsed for unknown stream, msg_id %d\n", |
| msg_id); |
| return; |
| } |
| |
| stream = &spcm->stream[direction]; |
| snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn)); |
| |
| dev_dbg(sdev->dev, "posn : host 0x%llx dai 0x%llx wall 0x%llx\n", |
| posn.host_posn, posn.dai_posn, posn.wallclock); |
| |
| memcpy(&stream->posn, &posn, sizeof(posn)); |
| |
| /* only inform ALSA for period_wakeup mode */ |
| if (!stream->substream->runtime->no_period_wakeup) |
| snd_sof_pcm_period_elapsed(stream->substream); |
| } |
| |
| /* DSP notifies host of an XRUN within FW */ |
| static void ipc_xrun(struct snd_sof_dev *sdev, u32 msg_id) |
| { |
| struct snd_soc_component *scomp = sdev->component; |
| struct snd_sof_pcm_stream *stream; |
| struct sof_ipc_stream_posn posn; |
| struct snd_sof_pcm *spcm; |
| int direction; |
| |
| spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction); |
| if (!spcm) { |
| dev_err(sdev->dev, "error: XRUN for unknown stream, msg_id %d\n", |
| msg_id); |
| return; |
| } |
| |
| stream = &spcm->stream[direction]; |
| snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn)); |
| |
| dev_dbg(sdev->dev, "posn XRUN: host %llx comp %d size %d\n", |
| posn.host_posn, posn.xrun_comp_id, posn.xrun_size); |
| |
| #if defined(CONFIG_SND_SOC_SOF_DEBUG_XRUN_STOP) |
| /* stop PCM on XRUN - used for pipeline debug */ |
| memcpy(&stream->posn, &posn, sizeof(posn)); |
| snd_pcm_stop_xrun(stream->substream); |
| #endif |
| } |
| |
| /* stream notifications from DSP FW */ |
| static void ipc_stream_message(struct snd_sof_dev *sdev, u32 msg_cmd) |
| { |
| /* get msg cmd type and msd id */ |
| u32 msg_type = msg_cmd & SOF_CMD_TYPE_MASK; |
| u32 msg_id = SOF_IPC_MESSAGE_ID(msg_cmd); |
| |
| switch (msg_type) { |
| case SOF_IPC_STREAM_POSITION: |
| ipc_period_elapsed(sdev, msg_id); |
| break; |
| case SOF_IPC_STREAM_TRIG_XRUN: |
| ipc_xrun(sdev, msg_id); |
| break; |
| default: |
| dev_err(sdev->dev, "error: unhandled stream message %x\n", |
| msg_id); |
| break; |
| } |
| } |
| |
| /* get stream position IPC - use faster MMIO method if available on platform */ |
| int snd_sof_ipc_stream_posn(struct snd_soc_component *scomp, |
| struct snd_sof_pcm *spcm, int direction, |
| struct sof_ipc_stream_posn *posn) |
| { |
| struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); |
| struct sof_ipc_stream stream; |
| int err; |
| |
| /* read position via slower IPC */ |
| stream.hdr.size = sizeof(stream); |
| stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_POSITION; |
| stream.comp_id = spcm->stream[direction].comp_id; |
| |
| /* send IPC to the DSP */ |
| err = sof_ipc_tx_message(sdev->ipc, |
| stream.hdr.cmd, &stream, sizeof(stream), posn, |
| sizeof(*posn)); |
| if (err < 0) { |
| dev_err(sdev->dev, "error: failed to get stream %d position\n", |
| stream.comp_id); |
| return err; |
| } |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_stream_posn); |
| |
| static int sof_get_ctrl_copy_params(enum sof_ipc_ctrl_type ctrl_type, |
| struct sof_ipc_ctrl_data *src, |
| struct sof_ipc_ctrl_data *dst, |
| struct sof_ipc_ctrl_data_params *sparams) |
| { |
| switch (ctrl_type) { |
| case SOF_CTRL_TYPE_VALUE_CHAN_GET: |
| case SOF_CTRL_TYPE_VALUE_CHAN_SET: |
| sparams->src = (u8 *)src->chanv; |
| sparams->dst = (u8 *)dst->chanv; |
| break; |
| case SOF_CTRL_TYPE_VALUE_COMP_GET: |
| case SOF_CTRL_TYPE_VALUE_COMP_SET: |
| sparams->src = (u8 *)src->compv; |
| sparams->dst = (u8 *)dst->compv; |
| break; |
| case SOF_CTRL_TYPE_DATA_GET: |
| case SOF_CTRL_TYPE_DATA_SET: |
| sparams->src = (u8 *)src->data->data; |
| sparams->dst = (u8 *)dst->data->data; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* calculate payload size and number of messages */ |
| sparams->pl_size = SOF_IPC_MSG_MAX_SIZE - sparams->hdr_bytes; |
| sparams->num_msg = DIV_ROUND_UP(sparams->msg_bytes, sparams->pl_size); |
| |
| return 0; |
| } |
| |
| static int sof_set_get_large_ctrl_data(struct snd_sof_dev *sdev, |
| struct sof_ipc_ctrl_data *cdata, |
| struct sof_ipc_ctrl_data_params *sparams, |
| bool send) |
| { |
| struct sof_ipc_ctrl_data *partdata; |
| size_t send_bytes; |
| size_t offset = 0; |
| size_t msg_bytes; |
| size_t pl_size; |
| int err; |
| int i; |
| |
| /* allocate max ipc size because we have at least one */ |
| partdata = kzalloc(SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL); |
| if (!partdata) |
| return -ENOMEM; |
| |
| if (send) |
| err = sof_get_ctrl_copy_params(cdata->type, cdata, partdata, |
| sparams); |
| else |
| err = sof_get_ctrl_copy_params(cdata->type, partdata, cdata, |
| sparams); |
| if (err < 0) { |
| kfree(partdata); |
| return err; |
| } |
| |
| msg_bytes = sparams->msg_bytes; |
| pl_size = sparams->pl_size; |
| |
| /* copy the header data */ |
| memcpy(partdata, cdata, sparams->hdr_bytes); |
| |
| /* Serialise IPC TX */ |
| mutex_lock(&sdev->ipc->tx_mutex); |
| |
| /* copy the payload data in a loop */ |
| for (i = 0; i < sparams->num_msg; i++) { |
| send_bytes = min(msg_bytes, pl_size); |
| partdata->num_elems = send_bytes; |
| partdata->rhdr.hdr.size = sparams->hdr_bytes + send_bytes; |
| partdata->msg_index = i; |
| msg_bytes -= send_bytes; |
| partdata->elems_remaining = msg_bytes; |
| |
| if (send) |
| memcpy(sparams->dst, sparams->src + offset, send_bytes); |
| |
| err = sof_ipc_tx_message_unlocked(sdev->ipc, |
| partdata->rhdr.hdr.cmd, |
| partdata, |
| partdata->rhdr.hdr.size, |
| partdata, |
| partdata->rhdr.hdr.size); |
| if (err < 0) |
| break; |
| |
| if (!send) |
| memcpy(sparams->dst + offset, sparams->src, send_bytes); |
| |
| offset += pl_size; |
| } |
| |
| mutex_unlock(&sdev->ipc->tx_mutex); |
| |
| kfree(partdata); |
| return err; |
| } |
| |
| /* |
| * IPC get()/set() for kcontrols. |
| */ |
| int snd_sof_ipc_set_get_comp_data(struct snd_sof_control *scontrol, |
| u32 ipc_cmd, |
| enum sof_ipc_ctrl_type ctrl_type, |
| enum sof_ipc_ctrl_cmd ctrl_cmd, |
| bool send) |
| { |
| struct snd_soc_component *scomp = scontrol->scomp; |
| struct sof_ipc_ctrl_data *cdata = scontrol->control_data; |
| struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); |
| struct sof_ipc_fw_ready *ready = &sdev->fw_ready; |
| struct sof_ipc_fw_version *v = &ready->version; |
| struct sof_ipc_ctrl_data_params sparams; |
| size_t send_bytes; |
| int err; |
| |
| /* read or write firmware volume */ |
| if (scontrol->readback_offset != 0) { |
| /* write/read value header via mmaped region */ |
| send_bytes = sizeof(struct sof_ipc_ctrl_value_chan) * |
| cdata->num_elems; |
| if (send) |
| snd_sof_dsp_block_write(sdev, sdev->mmio_bar, |
| scontrol->readback_offset, |
| cdata->chanv, send_bytes); |
| |
| else |
| snd_sof_dsp_block_read(sdev, sdev->mmio_bar, |
| scontrol->readback_offset, |
| cdata->chanv, send_bytes); |
| return 0; |
| } |
| |
| cdata->rhdr.hdr.cmd = SOF_IPC_GLB_COMP_MSG | ipc_cmd; |
| cdata->cmd = ctrl_cmd; |
| cdata->type = ctrl_type; |
| cdata->comp_id = scontrol->comp_id; |
| cdata->msg_index = 0; |
| |
| /* calculate header and data size */ |
| switch (cdata->type) { |
| case SOF_CTRL_TYPE_VALUE_CHAN_GET: |
| case SOF_CTRL_TYPE_VALUE_CHAN_SET: |
| sparams.msg_bytes = scontrol->num_channels * |
| sizeof(struct sof_ipc_ctrl_value_chan); |
| sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data); |
| sparams.elems = scontrol->num_channels; |
| break; |
| case SOF_CTRL_TYPE_VALUE_COMP_GET: |
| case SOF_CTRL_TYPE_VALUE_COMP_SET: |
| sparams.msg_bytes = scontrol->num_channels * |
| sizeof(struct sof_ipc_ctrl_value_comp); |
| sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data); |
| sparams.elems = scontrol->num_channels; |
| break; |
| case SOF_CTRL_TYPE_DATA_GET: |
| case SOF_CTRL_TYPE_DATA_SET: |
| sparams.msg_bytes = cdata->data->size; |
| sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data) + |
| sizeof(struct sof_abi_hdr); |
| sparams.elems = cdata->data->size; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| cdata->rhdr.hdr.size = sparams.msg_bytes + sparams.hdr_bytes; |
| cdata->num_elems = sparams.elems; |
| cdata->elems_remaining = 0; |
| |
| /* send normal size ipc in one part */ |
| if (cdata->rhdr.hdr.size <= SOF_IPC_MSG_MAX_SIZE) { |
| err = sof_ipc_tx_message(sdev->ipc, cdata->rhdr.hdr.cmd, cdata, |
| cdata->rhdr.hdr.size, cdata, |
| cdata->rhdr.hdr.size); |
| |
| if (err < 0) |
| dev_err(sdev->dev, "error: set/get ctrl ipc comp %d\n", |
| cdata->comp_id); |
| |
| return err; |
| } |
| |
| /* data is bigger than max ipc size, chop into smaller pieces */ |
| dev_dbg(sdev->dev, "large ipc size %u, control size %u\n", |
| cdata->rhdr.hdr.size, scontrol->size); |
| |
| /* large messages is only supported from ABI 3.3.0 onwards */ |
| if (v->abi_version < SOF_ABI_VER(3, 3, 0)) { |
| dev_err(sdev->dev, "error: incompatible FW ABI version\n"); |
| return -EINVAL; |
| } |
| |
| err = sof_set_get_large_ctrl_data(sdev, cdata, &sparams, send); |
| |
| if (err < 0) |
| dev_err(sdev->dev, "error: set/get large ctrl ipc comp %d\n", |
| cdata->comp_id); |
| |
| return err; |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_set_get_comp_data); |
| |
| /* |
| * IPC layer enumeration. |
| */ |
| |
| int snd_sof_dsp_mailbox_init(struct snd_sof_dev *sdev, u32 dspbox, |
| size_t dspbox_size, u32 hostbox, |
| size_t hostbox_size) |
| { |
| sdev->dsp_box.offset = dspbox; |
| sdev->dsp_box.size = dspbox_size; |
| sdev->host_box.offset = hostbox; |
| sdev->host_box.size = hostbox_size; |
| return 0; |
| } |
| EXPORT_SYMBOL(snd_sof_dsp_mailbox_init); |
| |
| int snd_sof_ipc_valid(struct snd_sof_dev *sdev) |
| { |
| struct sof_ipc_fw_ready *ready = &sdev->fw_ready; |
| struct sof_ipc_fw_version *v = &ready->version; |
| |
| dev_info(sdev->dev, |
| "Firmware info: version %d:%d:%d-%s\n", v->major, v->minor, |
| v->micro, v->tag); |
| dev_info(sdev->dev, |
| "Firmware: ABI %d:%d:%d Kernel ABI %d:%d:%d\n", |
| SOF_ABI_VERSION_MAJOR(v->abi_version), |
| SOF_ABI_VERSION_MINOR(v->abi_version), |
| SOF_ABI_VERSION_PATCH(v->abi_version), |
| SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH); |
| |
| if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, v->abi_version)) { |
| dev_err(sdev->dev, "error: incompatible FW ABI version\n"); |
| return -EINVAL; |
| } |
| |
| if (v->abi_version > SOF_ABI_VERSION) { |
| if (!IS_ENABLED(CONFIG_SND_SOC_SOF_STRICT_ABI_CHECKS)) { |
| dev_warn(sdev->dev, "warn: FW ABI is more recent than kernel\n"); |
| } else { |
| dev_err(sdev->dev, "error: FW ABI is more recent than kernel\n"); |
| return -EINVAL; |
| } |
| } |
| |
| if (ready->flags & SOF_IPC_INFO_BUILD) { |
| dev_info(sdev->dev, |
| "Firmware debug build %d on %s-%s - options:\n" |
| " GDB: %s\n" |
| " lock debug: %s\n" |
| " lock vdebug: %s\n", |
| v->build, v->date, v->time, |
| (ready->flags & SOF_IPC_INFO_GDB) ? |
| "enabled" : "disabled", |
| (ready->flags & SOF_IPC_INFO_LOCKS) ? |
| "enabled" : "disabled", |
| (ready->flags & SOF_IPC_INFO_LOCKSV) ? |
| "enabled" : "disabled"); |
| } |
| |
| /* copy the fw_version into debugfs at first boot */ |
| memcpy(&sdev->fw_version, v, sizeof(*v)); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_valid); |
| |
| struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev) |
| { |
| struct snd_sof_ipc *ipc; |
| struct snd_sof_ipc_msg *msg; |
| |
| ipc = devm_kzalloc(sdev->dev, sizeof(*ipc), GFP_KERNEL); |
| if (!ipc) |
| return NULL; |
| |
| mutex_init(&ipc->tx_mutex); |
| ipc->sdev = sdev; |
| msg = &ipc->msg; |
| |
| /* indicate that we aren't sending a message ATM */ |
| msg->ipc_complete = true; |
| |
| /* pre-allocate message data */ |
| msg->msg_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE, |
| GFP_KERNEL); |
| if (!msg->msg_data) |
| return NULL; |
| |
| msg->reply_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE, |
| GFP_KERNEL); |
| if (!msg->reply_data) |
| return NULL; |
| |
| init_waitqueue_head(&msg->waitq); |
| |
| return ipc; |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_init); |
| |
| void snd_sof_ipc_free(struct snd_sof_dev *sdev) |
| { |
| struct snd_sof_ipc *ipc = sdev->ipc; |
| |
| if (!ipc) |
| return; |
| |
| /* disable sending of ipc's */ |
| mutex_lock(&ipc->tx_mutex); |
| ipc->disable_ipc_tx = true; |
| mutex_unlock(&ipc->tx_mutex); |
| } |
| EXPORT_SYMBOL(snd_sof_ipc_free); |