diff options
Diffstat (limited to 'sound/soc/intel/sst/sst_pvt.c')
-rw-r--r-- | sound/soc/intel/sst/sst_pvt.c | 449 |
1 files changed, 0 insertions, 449 deletions
diff --git a/sound/soc/intel/sst/sst_pvt.c b/sound/soc/intel/sst/sst_pvt.c deleted file mode 100644 index 4b7720864492..000000000000 --- a/sound/soc/intel/sst/sst_pvt.c +++ /dev/null @@ -1,449 +0,0 @@ -/* - * sst_pvt.c - Intel SST Driver for audio engine - * - * Copyright (C) 2008-14 Intel Corp - * 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/kobject.h> -#include <linux/pci.h> -#include <linux/fs.h> -#include <linux/firmware.h> -#include <linux/pm_runtime.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <sound/asound.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/soc.h> -#include <sound/compress_driver.h> -#include <asm/platform_sst_audio.h> -#include "../sst-mfld-platform.h" -#include "sst.h" -#include "../sst-dsp.h" - -int sst_shim_write(void __iomem *addr, int offset, int value) -{ - writel(value, addr + offset); - return 0; -} - -u32 sst_shim_read(void __iomem *addr, int offset) -{ - return readl(addr + offset); -} - -u64 sst_reg_read64(void __iomem *addr, int offset) -{ - u64 val = 0; - - memcpy_fromio(&val, addr + offset, sizeof(val)); - - return val; -} - -int sst_shim_write64(void __iomem *addr, int offset, u64 value) -{ - memcpy_toio(addr + offset, &value, sizeof(value)); - return 0; -} - -u64 sst_shim_read64(void __iomem *addr, int offset) -{ - u64 val = 0; - - memcpy_fromio(&val, addr + offset, sizeof(val)); - return val; -} - -void sst_set_fw_state_locked( - struct intel_sst_drv *sst_drv_ctx, int sst_state) -{ - mutex_lock(&sst_drv_ctx->sst_lock); - sst_drv_ctx->sst_state = sst_state; - mutex_unlock(&sst_drv_ctx->sst_lock); -} - -/* - * sst_wait_interruptible - wait on event - * - * @sst_drv_ctx: Driver context - * @block: Driver block to wait on - * - * This function waits without a timeout (and is interruptable) for a - * given block event - */ -int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx, - struct sst_block *block) -{ - int retval = 0; - - if (!wait_event_interruptible(sst_drv_ctx->wait_queue, - block->condition)) { - /* event wake */ - if (block->ret_code < 0) { - dev_err(sst_drv_ctx->dev, - "stream failed %d\n", block->ret_code); - retval = -EBUSY; - } else { - dev_dbg(sst_drv_ctx->dev, "event up\n"); - retval = 0; - } - } else { - dev_err(sst_drv_ctx->dev, "signal interrupted\n"); - retval = -EINTR; - } - return retval; - -} - -unsigned long long read_shim_data(struct intel_sst_drv *sst, int addr) -{ - unsigned long long val = 0; - - switch (sst->dev_id) { - case SST_MRFLD_PCI_ID: - case SST_BYT_ACPI_ID: - val = sst_shim_read64(sst->shim, addr); - break; - } - return val; -} - -void write_shim_data(struct intel_sst_drv *sst, int addr, - unsigned long long data) -{ - switch (sst->dev_id) { - case SST_MRFLD_PCI_ID: - case SST_BYT_ACPI_ID: - sst_shim_write64(sst->shim, addr, (u64) data); - break; - } -} - -/* - * sst_wait_timeout - wait on event for timeout - * - * @sst_drv_ctx: Driver context - * @block: Driver block to wait on - * - * This function waits with a timeout value (and is not interruptible) on a - * given block event - */ -int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx, struct sst_block *block) -{ - int retval = 0; - - /* - * NOTE: - * Observed that FW processes the alloc msg and replies even - * before the alloc thread has finished execution - */ - dev_dbg(sst_drv_ctx->dev, - "waiting for condition %x ipc %d drv_id %d\n", - block->condition, block->msg_id, block->drv_id); - if (wait_event_timeout(sst_drv_ctx->wait_queue, - block->condition, - msecs_to_jiffies(SST_BLOCK_TIMEOUT))) { - /* event wake */ - dev_dbg(sst_drv_ctx->dev, "Event wake %x\n", - block->condition); - dev_dbg(sst_drv_ctx->dev, "message ret: %d\n", - block->ret_code); - retval = -block->ret_code; - } else { - block->on = false; - dev_err(sst_drv_ctx->dev, - "Wait timed-out condition:%#x, msg_id:%#x fw_state %#x\n", - block->condition, block->msg_id, sst_drv_ctx->sst_state); - sst_drv_ctx->sst_state = SST_RESET; - - retval = -EBUSY; - } - return retval; -} - -/* - * sst_create_ipc_msg - create a IPC message - * - * @arg: ipc message - * @large: large or short message - * - * this function allocates structures to send a large or short - * message to the firmware - */ -int sst_create_ipc_msg(struct ipc_post **arg, bool large) -{ - struct ipc_post *msg; - - msg = kzalloc(sizeof(struct ipc_post), GFP_ATOMIC); - if (!msg) - return -ENOMEM; - if (large) { - msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_ATOMIC); - if (!msg->mailbox_data) { - kfree(msg); - return -ENOMEM; - } - } else { - msg->mailbox_data = NULL; - } - msg->is_large = large; - *arg = msg; - return 0; -} - -/* - * sst_create_block_and_ipc_msg - Creates IPC message and sst block - * @arg: passed to sst_create_ipc_message API - * @large: large or short message - * @sst_drv_ctx: sst driver context - * @block: return block allocated - * @msg_id: IPC - * @drv_id: stream id or private id - */ -int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large, - struct intel_sst_drv *sst_drv_ctx, struct sst_block **block, - u32 msg_id, u32 drv_id) -{ - int retval = 0; - - retval = sst_create_ipc_msg(arg, large); - if (retval) - return retval; - *block = sst_create_block(sst_drv_ctx, msg_id, drv_id); - if (*block == NULL) { - kfree(*arg); - return -ENOMEM; - } - return retval; -} - -/* - * sst_clean_stream - clean the stream context - * - * @stream: stream structure - * - * this function resets the stream contexts - * should be called in free - */ -void sst_clean_stream(struct stream_info *stream) -{ - stream->status = STREAM_UN_INIT; - stream->prev = STREAM_UN_INIT; - mutex_lock(&stream->lock); - stream->cumm_bytes = 0; - mutex_unlock(&stream->lock); -} - -int sst_prepare_and_post_msg(struct intel_sst_drv *sst, - int task_id, int ipc_msg, int cmd_id, int pipe_id, - size_t mbox_data_len, const void *mbox_data, void **data, - bool large, bool fill_dsp, bool sync, bool response) -{ - struct ipc_post *msg = NULL; - struct ipc_dsp_hdr dsp_hdr; - struct sst_block *block; - int ret = 0, pvt_id; - - pvt_id = sst_assign_pvt_id(sst); - if (pvt_id < 0) - return pvt_id; - - if (response) - ret = sst_create_block_and_ipc_msg( - &msg, large, sst, &block, ipc_msg, pvt_id); - else - ret = sst_create_ipc_msg(&msg, large); - - if (ret < 0) { - test_and_clear_bit(pvt_id, &sst->pvt_id); - return -ENOMEM; - } - - dev_dbg(sst->dev, "pvt_id = %d, pipe id = %d, task = %d ipc_msg: %d\n", - pvt_id, pipe_id, task_id, ipc_msg); - sst_fill_header_mrfld(&msg->mrfld_header, ipc_msg, - task_id, large, pvt_id); - msg->mrfld_header.p.header_low_payload = sizeof(dsp_hdr) + mbox_data_len; - msg->mrfld_header.p.header_high.part.res_rqd = !sync; - dev_dbg(sst->dev, "header:%x\n", - msg->mrfld_header.p.header_high.full); - dev_dbg(sst->dev, "response rqd: %x", - msg->mrfld_header.p.header_high.part.res_rqd); - dev_dbg(sst->dev, "msg->mrfld_header.p.header_low_payload:%d", - msg->mrfld_header.p.header_low_payload); - if (fill_dsp) { - sst_fill_header_dsp(&dsp_hdr, cmd_id, pipe_id, mbox_data_len); - memcpy(msg->mailbox_data, &dsp_hdr, sizeof(dsp_hdr)); - if (mbox_data_len) { - memcpy(msg->mailbox_data + sizeof(dsp_hdr), - mbox_data, mbox_data_len); - } - } - - if (sync) - sst->ops->post_message(sst, msg, true); - else - sst_add_to_dispatch_list_and_post(sst, msg); - - if (response) { - ret = sst_wait_timeout(sst, block); - if (ret < 0) { - goto out; - } else if(block->data) { - if (!data) - goto out; - *data = kzalloc(block->size, GFP_KERNEL); - if (!(*data)) { - ret = -ENOMEM; - goto out; - } else - memcpy(data, (void *) block->data, block->size); - } - } -out: - if (response) - sst_free_block(sst, block); - test_and_clear_bit(pvt_id, &sst->pvt_id); - return ret; -} - -int sst_pm_runtime_put(struct intel_sst_drv *sst_drv) -{ - int ret; - - pm_runtime_mark_last_busy(sst_drv->dev); - ret = pm_runtime_put_autosuspend(sst_drv->dev); - if (ret < 0) - return ret; - return 0; -} - -void sst_fill_header_mrfld(union ipc_header_mrfld *header, - int msg, int task_id, int large, int drv_id) -{ - header->full = 0; - header->p.header_high.part.msg_id = msg; - header->p.header_high.part.task_id = task_id; - header->p.header_high.part.large = large; - header->p.header_high.part.drv_id = drv_id; - header->p.header_high.part.done = 0; - header->p.header_high.part.busy = 1; - header->p.header_high.part.res_rqd = 1; -} - -void sst_fill_header_dsp(struct ipc_dsp_hdr *dsp, int msg, - int pipe_id, int len) -{ - dsp->cmd_id = msg; - dsp->mod_index_id = 0xff; - dsp->pipe_id = pipe_id; - dsp->length = len; - dsp->mod_id = 0; -} - -#define SST_MAX_BLOCKS 15 -/* - * sst_assign_pvt_id - assign a pvt id for stream - * - * @sst_drv_ctx : driver context - * - * this function assigns a private id for calls that dont have stream - * context yet, should be called with lock held - * uses bits for the id, and finds first free bits and assigns that - */ -int sst_assign_pvt_id(struct intel_sst_drv *drv) -{ - int local; - - spin_lock(&drv->block_lock); - /* find first zero index from lsb */ - local = ffz(drv->pvt_id); - dev_dbg(drv->dev, "pvt_id assigned --> %d\n", local); - if (local >= SST_MAX_BLOCKS){ - spin_unlock(&drv->block_lock); - dev_err(drv->dev, "PVT _ID error: no free id blocks "); - return -EINVAL; - } - /* toggle the index */ - change_bit(local, &drv->pvt_id); - spin_unlock(&drv->block_lock); - return local; -} - -void sst_init_stream(struct stream_info *stream, - int codec, int sst_id, int ops, u8 slot) -{ - stream->status = STREAM_INIT; - stream->prev = STREAM_UN_INIT; - stream->ops = ops; -} - -int sst_validate_strid( - struct intel_sst_drv *sst_drv_ctx, int str_id) -{ - if (str_id <= 0 || str_id > sst_drv_ctx->info.max_streams) { - dev_err(sst_drv_ctx->dev, - "SST ERR: invalid stream id : %d, max %d\n", - str_id, sst_drv_ctx->info.max_streams); - return -EINVAL; - } - - return 0; -} - -struct stream_info *get_stream_info( - struct intel_sst_drv *sst_drv_ctx, int str_id) -{ - if (sst_validate_strid(sst_drv_ctx, str_id)) - return NULL; - return &sst_drv_ctx->streams[str_id]; -} - -int get_stream_id_mrfld(struct intel_sst_drv *sst_drv_ctx, - u32 pipe_id) -{ - int i; - - for (i = 1; i <= sst_drv_ctx->info.max_streams; i++) - if (pipe_id == sst_drv_ctx->streams[i].pipe_id) - return i; - - dev_dbg(sst_drv_ctx->dev, "no such pipe_id(%u)", pipe_id); - return -1; -} - -u32 relocate_imr_addr_mrfld(u32 base_addr) -{ - /* Get the difference from 512MB aligned base addr */ - /* relocate the base */ - base_addr = MRFLD_FW_VIRTUAL_BASE + (base_addr % (512 * 1024 * 1024)); - return base_addr; -} -EXPORT_SYMBOL_GPL(relocate_imr_addr_mrfld); - -void sst_add_to_dispatch_list_and_post(struct intel_sst_drv *sst, - struct ipc_post *msg) -{ - unsigned long irq_flags; - - spin_lock_irqsave(&sst->ipc_spin_lock, irq_flags); - list_add_tail(&msg->node, &sst->ipc_dispatch_list); - spin_unlock_irqrestore(&sst->ipc_spin_lock, irq_flags); - sst->ops->post_message(sst, NULL, false); -} |