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authorJie Yang <yang.jie@intel.com>2015-04-02 15:37:04 +0800
committerMark Brown <broonie@kernel.org>2015-04-06 17:49:45 +0100
commitb97169da06992ef04081e66ed22bbdb23dbf6610 (patch)
tree81e719f60576c2c32edb1f7e75760062f96ceb46 /sound/soc/intel/sst/sst_ipc.c
parent66a6fd9846f0aecdbab9324b792b319fd8e95e77 (diff)
downloadlinux-b97169da06992ef04081e66ed22bbdb23dbf6610.tar.bz2
ASoC: Intel: create atom folder and move atom platform files in
Restructure the sound/soc/intel/ directory: create atom folder, and move sst atom platform files here. Signed-off-by: Jie Yang <yang.jie@intel.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/sst/sst_ipc.c')
-rw-r--r--sound/soc/intel/sst/sst_ipc.c373
1 files changed, 0 insertions, 373 deletions
diff --git a/sound/soc/intel/sst/sst_ipc.c b/sound/soc/intel/sst/sst_ipc.c
deleted file mode 100644
index 3943ae856c31..000000000000
--- a/sound/soc/intel/sst/sst_ipc.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*
- * sst_ipc.c - Intel SST Driver for audio engine
- *
- * Copyright (C) 2008-14 Intel Corporation
- * Authors: Vinod Koul <vinod.koul@intel.com>
- * Harsha Priya <priya.harsha@intel.com>
- * Dharageswari R <dharageswari.r@intel.com>
- * KP Jeeja <jeeja.kp@intel.com>
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * 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; version 2 of the License.
- *
- * 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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-#include <linux/pci.h>
-#include <linux/firmware.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/pm_runtime.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include <sound/compress_driver.h>
-#include <asm/intel-mid.h>
-#include <asm/platform_sst_audio.h>
-#include "../sst-mfld-platform.h"
-#include "sst.h"
-#include "../common/sst-dsp.h"
-
-struct sst_block *sst_create_block(struct intel_sst_drv *ctx,
- u32 msg_id, u32 drv_id)
-{
- struct sst_block *msg = NULL;
-
- dev_dbg(ctx->dev, "Enter\n");
- msg = kzalloc(sizeof(*msg), GFP_KERNEL);
- if (!msg)
- return NULL;
- msg->condition = false;
- msg->on = true;
- msg->msg_id = msg_id;
- msg->drv_id = drv_id;
- spin_lock_bh(&ctx->block_lock);
- list_add_tail(&msg->node, &ctx->block_list);
- spin_unlock_bh(&ctx->block_lock);
-
- return msg;
-}
-
-/*
- * while handling the interrupts, we need to check for message status and
- * then if we are blocking for a message
- *
- * here we are unblocking the blocked ones, this is based on id we have
- * passed and search that for block threads.
- * We will not find block in two cases
- * a) when its small message and block in not there, so silently ignore
- * them
- * b) when we are actually not able to find the block (bug perhaps)
- *
- * Since we have bit of small messages we can spam kernel log with err
- * print on above so need to keep as debug prints which should be enabled
- * via dynamic debug while debugging IPC issues
- */
-int sst_wake_up_block(struct intel_sst_drv *ctx, int result,
- u32 drv_id, u32 ipc, void *data, u32 size)
-{
- struct sst_block *block = NULL;
-
- dev_dbg(ctx->dev, "Enter\n");
-
- spin_lock_bh(&ctx->block_lock);
- list_for_each_entry(block, &ctx->block_list, node) {
- dev_dbg(ctx->dev, "Block ipc %d, drv_id %d\n", block->msg_id,
- block->drv_id);
- if (block->msg_id == ipc && block->drv_id == drv_id) {
- dev_dbg(ctx->dev, "free up the block\n");
- block->ret_code = result;
- block->data = data;
- block->size = size;
- block->condition = true;
- spin_unlock_bh(&ctx->block_lock);
- wake_up(&ctx->wait_queue);
- return 0;
- }
- }
- spin_unlock_bh(&ctx->block_lock);
- dev_dbg(ctx->dev,
- "Block not found or a response received for a short msg for ipc %d, drv_id %d\n",
- ipc, drv_id);
- return -EINVAL;
-}
-
-int sst_free_block(struct intel_sst_drv *ctx, struct sst_block *freed)
-{
- struct sst_block *block = NULL, *__block;
-
- dev_dbg(ctx->dev, "Enter\n");
- spin_lock_bh(&ctx->block_lock);
- list_for_each_entry_safe(block, __block, &ctx->block_list, node) {
- if (block == freed) {
- pr_debug("pvt_id freed --> %d\n", freed->drv_id);
- /* toggle the index position of pvt_id */
- list_del(&freed->node);
- spin_unlock_bh(&ctx->block_lock);
- kfree(freed->data);
- freed->data = NULL;
- kfree(freed);
- return 0;
- }
- }
- spin_unlock_bh(&ctx->block_lock);
- dev_err(ctx->dev, "block is already freed!!!\n");
- return -EINVAL;
-}
-
-int sst_post_message_mrfld(struct intel_sst_drv *sst_drv_ctx,
- struct ipc_post *ipc_msg, bool sync)
-{
- struct ipc_post *msg = ipc_msg;
- union ipc_header_mrfld header;
- unsigned int loop_count = 0;
- int retval = 0;
- unsigned long irq_flags;
-
- dev_dbg(sst_drv_ctx->dev, "Enter: sync: %d\n", sync);
- spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
- header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX);
- if (sync) {
- while (header.p.header_high.part.busy) {
- if (loop_count > 25) {
- dev_err(sst_drv_ctx->dev,
- "sst: Busy wait failed, cant send this msg\n");
- retval = -EBUSY;
- goto out;
- }
- cpu_relax();
- loop_count++;
- header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX);
- }
- } else {
- if (list_empty(&sst_drv_ctx->ipc_dispatch_list)) {
- /* queue is empty, nothing to send */
- spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
- dev_dbg(sst_drv_ctx->dev,
- "Empty msg queue... NO Action\n");
- return 0;
- }
-
- if (header.p.header_high.part.busy) {
- spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
- dev_dbg(sst_drv_ctx->dev, "Busy not free... post later\n");
- return 0;
- }
-
- /* copy msg from list */
- msg = list_entry(sst_drv_ctx->ipc_dispatch_list.next,
- struct ipc_post, node);
- list_del(&msg->node);
- }
- dev_dbg(sst_drv_ctx->dev, "sst: Post message: header = %x\n",
- msg->mrfld_header.p.header_high.full);
- dev_dbg(sst_drv_ctx->dev, "sst: size = 0x%x\n",
- msg->mrfld_header.p.header_low_payload);
-
- if (msg->mrfld_header.p.header_high.part.large)
- memcpy_toio(sst_drv_ctx->mailbox + SST_MAILBOX_SEND,
- msg->mailbox_data,
- msg->mrfld_header.p.header_low_payload);
-
- sst_shim_write64(sst_drv_ctx->shim, SST_IPCX, msg->mrfld_header.full);
-
-out:
- spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
- kfree(msg->mailbox_data);
- kfree(msg);
- return retval;
-}
-
-void intel_sst_clear_intr_mrfld(struct intel_sst_drv *sst_drv_ctx)
-{
- union interrupt_reg_mrfld isr;
- union interrupt_reg_mrfld imr;
- union ipc_header_mrfld clear_ipc;
- unsigned long irq_flags;
-
- spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
- imr.full = sst_shim_read64(sst_drv_ctx->shim, SST_IMRX);
- isr.full = sst_shim_read64(sst_drv_ctx->shim, SST_ISRX);
-
- /* write 1 to clear*/
- isr.part.busy_interrupt = 1;
- sst_shim_write64(sst_drv_ctx->shim, SST_ISRX, isr.full);
-
- /* Set IA done bit */
- clear_ipc.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCD);
-
- clear_ipc.p.header_high.part.busy = 0;
- clear_ipc.p.header_high.part.done = 1;
- clear_ipc.p.header_low_payload = IPC_ACK_SUCCESS;
- sst_shim_write64(sst_drv_ctx->shim, SST_IPCD, clear_ipc.full);
- /* un mask busy interrupt */
- imr.part.busy_interrupt = 0;
- sst_shim_write64(sst_drv_ctx->shim, SST_IMRX, imr.full);
- spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
-}
-
-
-/*
- * process_fw_init - process the FW init msg
- *
- * @msg: IPC message mailbox data from FW
- *
- * This function processes the FW init msg from FW
- * marks FW state and prints debug info of loaded FW
- */
-static void process_fw_init(struct intel_sst_drv *sst_drv_ctx,
- void *msg)
-{
- struct ipc_header_fw_init *init =
- (struct ipc_header_fw_init *)msg;
- int retval = 0;
-
- dev_dbg(sst_drv_ctx->dev, "*** FW Init msg came***\n");
- if (init->result) {
- sst_set_fw_state_locked(sst_drv_ctx, SST_RESET);
- dev_err(sst_drv_ctx->dev, "FW Init failed, Error %x\n",
- init->result);
- retval = init->result;
- goto ret;
- }
-
-ret:
- sst_wake_up_block(sst_drv_ctx, retval, FW_DWNL_ID, 0 , NULL, 0);
-}
-
-static void process_fw_async_msg(struct intel_sst_drv *sst_drv_ctx,
- struct ipc_post *msg)
-{
- u32 msg_id;
- int str_id;
- u32 data_size, i;
- void *data_offset;
- struct stream_info *stream;
- union ipc_header_high msg_high;
- u32 msg_low, pipe_id;
-
- msg_high = msg->mrfld_header.p.header_high;
- msg_low = msg->mrfld_header.p.header_low_payload;
- msg_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->cmd_id;
- data_offset = (msg->mailbox_data + sizeof(struct ipc_dsp_hdr));
- data_size = msg_low - (sizeof(struct ipc_dsp_hdr));
-
- switch (msg_id) {
- case IPC_SST_PERIOD_ELAPSED_MRFLD:
- pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;
- str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id);
- if (str_id > 0) {
- dev_dbg(sst_drv_ctx->dev,
- "Period elapsed rcvd for pipe id 0x%x\n",
- pipe_id);
- stream = &sst_drv_ctx->streams[str_id];
- if (stream->period_elapsed)
- stream->period_elapsed(stream->pcm_substream);
- if (stream->compr_cb)
- stream->compr_cb(stream->compr_cb_param);
- }
- break;
-
- case IPC_IA_DRAIN_STREAM_MRFLD:
- pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;
- str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id);
- if (str_id > 0) {
- stream = &sst_drv_ctx->streams[str_id];
- if (stream->drain_notify)
- stream->drain_notify(stream->drain_cb_param);
- }
- break;
-
- case IPC_IA_FW_ASYNC_ERR_MRFLD:
- dev_err(sst_drv_ctx->dev, "FW sent async error msg:\n");
- for (i = 0; i < (data_size/4); i++)
- print_hex_dump(KERN_DEBUG, NULL, DUMP_PREFIX_NONE,
- 16, 4, data_offset, data_size, false);
- break;
-
- case IPC_IA_FW_INIT_CMPLT_MRFLD:
- process_fw_init(sst_drv_ctx, data_offset);
- break;
-
- case IPC_IA_BUF_UNDER_RUN_MRFLD:
- pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;
- str_id = get_stream_id_mrfld(sst_drv_ctx, pipe_id);
- if (str_id > 0)
- dev_err(sst_drv_ctx->dev,
- "Buffer under-run for pipe:%#x str_id:%d\n",
- pipe_id, str_id);
- break;
-
- default:
- dev_err(sst_drv_ctx->dev,
- "Unrecognized async msg from FW msg_id %#x\n", msg_id);
- }
-}
-
-void sst_process_reply_mrfld(struct intel_sst_drv *sst_drv_ctx,
- struct ipc_post *msg)
-{
- unsigned int drv_id;
- void *data;
- union ipc_header_high msg_high;
- u32 msg_low;
- struct ipc_dsp_hdr *dsp_hdr;
- unsigned int cmd_id;
-
- msg_high = msg->mrfld_header.p.header_high;
- msg_low = msg->mrfld_header.p.header_low_payload;
-
- dev_dbg(sst_drv_ctx->dev, "IPC process message header %x payload %x\n",
- msg->mrfld_header.p.header_high.full,
- msg->mrfld_header.p.header_low_payload);
-
- drv_id = msg_high.part.drv_id;
-
- /* Check for async messages first */
- if (drv_id == SST_ASYNC_DRV_ID) {
- /*FW sent async large message*/
- process_fw_async_msg(sst_drv_ctx, msg);
- return;
- }
-
- /* FW sent short error response for an IPC */
- if (msg_high.part.result && drv_id && !msg_high.part.large) {
- /* 32-bit FW error code in msg_low */
- dev_err(sst_drv_ctx->dev, "FW sent error response 0x%x", msg_low);
- sst_wake_up_block(sst_drv_ctx, msg_high.part.result,
- msg_high.part.drv_id,
- msg_high.part.msg_id, NULL, 0);
- return;
- }
-
- /*
- * Process all valid responses
- * if it is a large message, the payload contains the size to
- * copy from mailbox
- **/
- if (msg_high.part.large) {
- data = kzalloc(msg_low, GFP_KERNEL);
- if (!data)
- return;
- memcpy(data, (void *) msg->mailbox_data, msg_low);
- /* Copy command id so that we can use to put sst to reset */
- dsp_hdr = (struct ipc_dsp_hdr *)data;
- cmd_id = dsp_hdr->cmd_id;
- dev_dbg(sst_drv_ctx->dev, "cmd_id %d\n", dsp_hdr->cmd_id);
- if (sst_wake_up_block(sst_drv_ctx, msg_high.part.result,
- msg_high.part.drv_id,
- msg_high.part.msg_id, data, msg_low))
- kfree(data);
- } else {
- sst_wake_up_block(sst_drv_ctx, msg_high.part.result,
- msg_high.part.drv_id,
- msg_high.part.msg_id, NULL, 0);
- }
-
-}