1 files changed, 0 insertions, 445 deletions

diff --git a/sound/soc/intel/sst/sst.c b/sound/soc/intel/sst/sst.c
deleted file mode 100644
index 11c578651c1c..000000000000
--- a/sound/soc/intel/sst/sst.c
+++ /dev/null
@@ -1,445 +0,0 @@
-/*
- *  sst.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/module.h>
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/firmware.h>
-#include <linux/pm_runtime.h>
-#include <linux/pm_qos.h>
-#include <linux/async.h>
-#include <linux/acpi.h>
-#include <sound/core.h>
-#include <sound/soc.h>
-#include <asm/platform_sst_audio.h>
-#include "../sst-mfld-platform.h"
-#include "sst.h"
-#include "../sst-dsp.h"
-
-MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
-MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
-MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine Driver");
-MODULE_LICENSE("GPL v2");
-
-static inline bool sst_is_process_reply(u32 msg_id)
-{
-	return ((msg_id & PROCESS_MSG) ? true : false);
-}
-
-static inline bool sst_validate_mailbox_size(unsigned int size)
-{
-	return ((size <= SST_MAILBOX_SIZE) ? true : false);
-}
-
-static irqreturn_t intel_sst_interrupt_mrfld(int irq, void *context)
-{
-	union interrupt_reg_mrfld isr;
-	union ipc_header_mrfld header;
-	union sst_imr_reg_mrfld imr;
-	struct ipc_post *msg = NULL;
-	unsigned int size = 0;
-	struct intel_sst_drv *drv = (struct intel_sst_drv *) context;
-	irqreturn_t retval = IRQ_HANDLED;
-
-	/* Interrupt arrived, check src */
-	isr.full = sst_shim_read64(drv->shim, SST_ISRX);
-
-	if (isr.part.done_interrupt) {
-		/* Clear done bit */
-		spin_lock(&drv->ipc_spin_lock);
-		header.full = sst_shim_read64(drv->shim,
-					drv->ipc_reg.ipcx);
-		header.p.header_high.part.done = 0;
-		sst_shim_write64(drv->shim, drv->ipc_reg.ipcx, header.full);
-
-		/* write 1 to clear status register */;
-		isr.part.done_interrupt = 1;
-		sst_shim_write64(drv->shim, SST_ISRX, isr.full);
-		spin_unlock(&drv->ipc_spin_lock);
-
-		/* we can send more messages to DSP so trigger work */
-		queue_work(drv->post_msg_wq, &drv->ipc_post_msg_wq);
-		retval = IRQ_HANDLED;
-	}
-
-	if (isr.part.busy_interrupt) {
-		/* message from dsp so copy that */
-		spin_lock(&drv->ipc_spin_lock);
-		imr.full = sst_shim_read64(drv->shim, SST_IMRX);
-		imr.part.busy_interrupt = 1;
-		sst_shim_write64(drv->shim, SST_IMRX, imr.full);
-		spin_unlock(&drv->ipc_spin_lock);
-		header.full =  sst_shim_read64(drv->shim, drv->ipc_reg.ipcd);
-
-		if (sst_create_ipc_msg(&msg, header.p.header_high.part.large)) {
-			drv->ops->clear_interrupt(drv);
-			return IRQ_HANDLED;
-		}
-
-		if (header.p.header_high.part.large) {
-			size = header.p.header_low_payload;
-			if (sst_validate_mailbox_size(size)) {
-				memcpy_fromio(msg->mailbox_data,
-					drv->mailbox + drv->mailbox_recv_offset, size);
-			} else {
-				dev_err(drv->dev,
-					"Mailbox not copied, payload size is: %u\n", size);
-				header.p.header_low_payload = 0;
-			}
-		}
-
-		msg->mrfld_header = header;
-		msg->is_process_reply =
-			sst_is_process_reply(header.p.header_high.part.msg_id);
-		spin_lock(&drv->rx_msg_lock);
-		list_add_tail(&msg->node, &drv->rx_list);
-		spin_unlock(&drv->rx_msg_lock);
-		drv->ops->clear_interrupt(drv);
-		retval = IRQ_WAKE_THREAD;
-	}
-	return retval;
-}
-
-static irqreturn_t intel_sst_irq_thread_mrfld(int irq, void *context)
-{
-	struct intel_sst_drv *drv = (struct intel_sst_drv *) context;
-	struct ipc_post *__msg, *msg = NULL;
-	unsigned long irq_flags;
-
-	spin_lock_irqsave(&drv->rx_msg_lock, irq_flags);
-	if (list_empty(&drv->rx_list)) {
-		spin_unlock_irqrestore(&drv->rx_msg_lock, irq_flags);
-		return IRQ_HANDLED;
-	}
-
-	list_for_each_entry_safe(msg, __msg, &drv->rx_list, node) {
-		list_del(&msg->node);
-		spin_unlock_irqrestore(&drv->rx_msg_lock, irq_flags);
-		if (msg->is_process_reply)
-			drv->ops->process_message(msg);
-		else
-			drv->ops->process_reply(drv, msg);
-
-		if (msg->is_large)
-			kfree(msg->mailbox_data);
-		kfree(msg);
-		spin_lock_irqsave(&drv->rx_msg_lock, irq_flags);
-	}
-	spin_unlock_irqrestore(&drv->rx_msg_lock, irq_flags);
-	return IRQ_HANDLED;
-}
-
-static int sst_save_dsp_context_v2(struct intel_sst_drv *sst)
-{
-	int ret = 0;
-
-	ret = sst_prepare_and_post_msg(sst, SST_TASK_ID_MEDIA, IPC_CMD,
-			IPC_PREP_D3, PIPE_RSVD, 0, NULL, NULL,
-			true, true, false, true);
-
-	if (ret < 0) {
-		dev_err(sst->dev, "not suspending FW!!, Err: %d\n", ret);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-
-static struct intel_sst_ops mrfld_ops = {
-	.interrupt = intel_sst_interrupt_mrfld,
-	.irq_thread = intel_sst_irq_thread_mrfld,
-	.clear_interrupt = intel_sst_clear_intr_mrfld,
-	.start = sst_start_mrfld,
-	.reset = intel_sst_reset_dsp_mrfld,
-	.post_message = sst_post_message_mrfld,
-	.process_reply = sst_process_reply_mrfld,
-	.save_dsp_context =  sst_save_dsp_context_v2,
-	.alloc_stream = sst_alloc_stream_mrfld,
-	.post_download = sst_post_download_mrfld,
-};
-
-int sst_driver_ops(struct intel_sst_drv *sst)
-{
-
-	switch (sst->dev_id) {
-	case SST_MRFLD_PCI_ID:
-	case SST_BYT_ACPI_ID:
-	case SST_CHV_ACPI_ID:
-		sst->tstamp = SST_TIME_STAMP_MRFLD;
-		sst->ops = &mrfld_ops;
-		return 0;
-
-	default:
-		dev_err(sst->dev,
-			"SST Driver capablities missing for dev_id: %x", sst->dev_id);
-		return -EINVAL;
-	};
-}
-
-void sst_process_pending_msg(struct work_struct *work)
-{
-	struct intel_sst_drv *ctx = container_of(work,
-			struct intel_sst_drv, ipc_post_msg_wq);
-
-	ctx->ops->post_message(ctx, NULL, false);
-}
-
-static int sst_workqueue_init(struct intel_sst_drv *ctx)
-{
-	INIT_LIST_HEAD(&ctx->memcpy_list);
-	INIT_LIST_HEAD(&ctx->rx_list);
-	INIT_LIST_HEAD(&ctx->ipc_dispatch_list);
-	INIT_LIST_HEAD(&ctx->block_list);
-	INIT_WORK(&ctx->ipc_post_msg_wq, sst_process_pending_msg);
-	init_waitqueue_head(&ctx->wait_queue);
-
-	ctx->post_msg_wq =
-		create_singlethread_workqueue("sst_post_msg_wq");
-	if (!ctx->post_msg_wq)
-		return -EBUSY;
-	return 0;
-}
-
-static void sst_init_locks(struct intel_sst_drv *ctx)
-{
-	mutex_init(&ctx->sst_lock);
-	spin_lock_init(&ctx->rx_msg_lock);
-	spin_lock_init(&ctx->ipc_spin_lock);
-	spin_lock_init(&ctx->block_lock);
-}
-
-int sst_alloc_drv_context(struct intel_sst_drv **ctx,
-		struct device *dev, unsigned int dev_id)
-{
-	*ctx = devm_kzalloc(dev, sizeof(struct intel_sst_drv), GFP_KERNEL);
-	if (!(*ctx))
-		return -ENOMEM;
-
-	(*ctx)->dev = dev;
-	(*ctx)->dev_id = dev_id;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(sst_alloc_drv_context);
-
-int sst_context_init(struct intel_sst_drv *ctx)
-{
-	int ret = 0, i;
-
-	if (!ctx->pdata)
-		return -EINVAL;
-
-	if (!ctx->pdata->probe_data)
-		return -EINVAL;
-
-	memcpy(&ctx->info, ctx->pdata->probe_data, sizeof(ctx->info));
-
-	ret = sst_driver_ops(ctx);
-	if (ret != 0)
-		return -EINVAL;
-
-	sst_init_locks(ctx);
-	sst_set_fw_state_locked(ctx, SST_RESET);
-
-	/* pvt_id 0 reserved for async messages */
-	ctx->pvt_id = 1;
-	ctx->stream_cnt = 0;
-	ctx->fw_in_mem = NULL;
-	/* we use memcpy, so set to 0 */
-	ctx->use_dma = 0;
-	ctx->use_lli = 0;
-
-	if (sst_workqueue_init(ctx))
-		return -EINVAL;
-
-	ctx->mailbox_recv_offset = ctx->pdata->ipc_info->mbox_recv_off;
-	ctx->ipc_reg.ipcx = SST_IPCX + ctx->pdata->ipc_info->ipc_offset;
-	ctx->ipc_reg.ipcd = SST_IPCD + ctx->pdata->ipc_info->ipc_offset;
-
-	dev_info(ctx->dev, "Got drv data max stream %d\n",
-				ctx->info.max_streams);
-
-	for (i = 1; i <= ctx->info.max_streams; i++) {
-		struct stream_info *stream = &ctx->streams[i];
-
-		memset(stream, 0, sizeof(*stream));
-		stream->pipe_id = PIPE_RSVD;
-		mutex_init(&stream->lock);
-	}
-
-	/* Register the ISR */
-	ret = devm_request_threaded_irq(ctx->dev, ctx->irq_num, ctx->ops->interrupt,
-					ctx->ops->irq_thread, 0, SST_DRV_NAME,
-					ctx);
-	if (ret)
-		goto do_free_mem;
-
-	dev_dbg(ctx->dev, "Registered IRQ %#x\n", ctx->irq_num);
-
-	/* default intr are unmasked so set this as masked */
-	sst_shim_write64(ctx->shim, SST_IMRX, 0xFFFF0038);
-
-	ctx->qos = devm_kzalloc(ctx->dev,
-		sizeof(struct pm_qos_request), GFP_KERNEL);
-	if (!ctx->qos) {
-		ret = -ENOMEM;
-		goto do_free_mem;
-	}
-	pm_qos_add_request(ctx->qos, PM_QOS_CPU_DMA_LATENCY,
-				PM_QOS_DEFAULT_VALUE);
-
-	dev_dbg(ctx->dev, "Requesting FW %s now...\n", ctx->firmware_name);
-	ret = request_firmware_nowait(THIS_MODULE, true, ctx->firmware_name,
-				      ctx->dev, GFP_KERNEL, ctx, sst_firmware_load_cb);
-	if (ret) {
-		dev_err(ctx->dev, "Firmware download failed:%d\n", ret);
-		goto do_free_mem;
-	}
-	sst_register(ctx->dev);
-	return 0;
-
-do_free_mem:
-	destroy_workqueue(ctx->post_msg_wq);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(sst_context_init);
-
-void sst_context_cleanup(struct intel_sst_drv *ctx)
-{
-	pm_runtime_get_noresume(ctx->dev);
-	pm_runtime_disable(ctx->dev);
-	sst_unregister(ctx->dev);
-	sst_set_fw_state_locked(ctx, SST_SHUTDOWN);
-	flush_scheduled_work();
-	destroy_workqueue(ctx->post_msg_wq);
-	pm_qos_remove_request(ctx->qos);
-	kfree(ctx->fw_sg_list.src);
-	kfree(ctx->fw_sg_list.dst);
-	ctx->fw_sg_list.list_len = 0;
-	kfree(ctx->fw_in_mem);
-	ctx->fw_in_mem = NULL;
-	sst_memcpy_free_resources(ctx);
-	ctx = NULL;
-}
-EXPORT_SYMBOL_GPL(sst_context_cleanup);
-
-static inline void sst_save_shim64(struct intel_sst_drv *ctx,
-			    void __iomem *shim,
-			    struct sst_shim_regs64 *shim_regs)
-{
-	unsigned long irq_flags;
-
-	spin_lock_irqsave(&ctx->ipc_spin_lock, irq_flags);
-
-	shim_regs->imrx = sst_shim_read64(shim, SST_IMRX);
-	shim_regs->csr = sst_shim_read64(shim, SST_CSR);
-
-
-	spin_unlock_irqrestore(&ctx->ipc_spin_lock, irq_flags);
-}
-
-static inline void sst_restore_shim64(struct intel_sst_drv *ctx,
-				      void __iomem *shim,
-				      struct sst_shim_regs64 *shim_regs)
-{
-	unsigned long irq_flags;
-
-	/*
-	 * we only need to restore IMRX for this case, rest will be
-	 * initialize by FW or driver when firmware is loaded
-	 */
-	spin_lock_irqsave(&ctx->ipc_spin_lock, irq_flags);
-	sst_shim_write64(shim, SST_IMRX, shim_regs->imrx),
-	sst_shim_write64(shim, SST_CSR, shim_regs->csr),
-	spin_unlock_irqrestore(&ctx->ipc_spin_lock, irq_flags);
-}
-
-void sst_configure_runtime_pm(struct intel_sst_drv *ctx)
-{
-	pm_runtime_set_autosuspend_delay(ctx->dev, SST_SUSPEND_DELAY);
-	pm_runtime_use_autosuspend(ctx->dev);
-	/*
-	 * For acpi devices, the actual physical device state is
-	 * initially active. So change the state to active before
-	 * enabling the pm
-	 */
-
-	if (!acpi_disabled)
-		pm_runtime_set_active(ctx->dev);
-
-	pm_runtime_enable(ctx->dev);
-
-	if (acpi_disabled)
-		pm_runtime_set_active(ctx->dev);
-	else
-		pm_runtime_put_noidle(ctx->dev);
-
-	sst_save_shim64(ctx, ctx->shim, ctx->shim_regs64);
-}
-EXPORT_SYMBOL_GPL(sst_configure_runtime_pm);
-
-static int intel_sst_runtime_suspend(struct device *dev)
-{
-	int ret = 0;
-	struct intel_sst_drv *ctx = dev_get_drvdata(dev);
-
-	if (ctx->sst_state == SST_RESET) {
-		dev_dbg(dev, "LPE is already in RESET state, No action\n");
-		return 0;
-	}
-	/* save fw context */
-	if (ctx->ops->save_dsp_context(ctx))
-		return -EBUSY;
-
-	/* Move the SST state to Reset */
-	sst_set_fw_state_locked(ctx, SST_RESET);
-
-	synchronize_irq(ctx->irq_num);
-	flush_workqueue(ctx->post_msg_wq);
-
-	ctx->ops->reset(ctx);
-	/* save the shim registers because PMC doesn't save state */
-	sst_save_shim64(ctx, ctx->shim, ctx->shim_regs64);
-
-	return ret;
-}
-
-static int intel_sst_runtime_resume(struct device *dev)
-{
-	int ret = 0;
-	struct intel_sst_drv *ctx = dev_get_drvdata(dev);
-
-	if (ctx->sst_state == SST_RESET) {
-		ret = sst_load_fw(ctx);
-		if (ret) {
-			dev_err(dev, "FW download fail %d\n", ret);
-			sst_set_fw_state_locked(ctx, SST_RESET);
-		}
-	}
-	return ret;
-}
-
-const struct dev_pm_ops intel_sst_pm = {
-	.runtime_suspend = intel_sst_runtime_suspend,
-	.runtime_resume = intel_sst_runtime_resume,
-};
-EXPORT_SYMBOL_GPL(intel_sst_pm);