Merge tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This became a fairly large pull request.  In addition to the usual
  driver updates / fixes, there have been a high amount of cleanups in
  ASoC area, as well as control API helpers and kernel documentations
  fixes touching through the whole tree.

  In the driver side, the biggest changes are the support for new Intel
  SoC found on new x86 machines, and the updates of FireWire dice and
  oxfw drivers.

  Some remarkable items are below:

  ALSA core:
   - PCM mmap code cleanup, removal of arch-dependent codes
   - PCM xrun injection support
   - PCM hwptr tracepoint support
   - Refactoring of snd_pcm_action(), simplification of PCM locking
   - Robustified sequecner auto-load functionality
   - New control API helpers and lots of cleanups along with them
   - Lots of kerneldoc fixes and cleanups

  USB-audio:
   - The mixer resume code was largely rewritten, and the devices with
     quirks are resumed properly.
   - New hardware support: Focusrite Scarlett, Digidesign Mbox1,
     Denon/Marantz DACs, Zoom R16/24

  FireWire:
   - DICE driver updates with better duplex and sync support, including
     MIDI support
   - New OXFW driver for Oxford Semiconductor FW970/971 chipset,
     including the previous LaCie Speakers device.  Fullduplex and MIDI
     support included as well as DICE driver.

  HD-audio:
   - Refactoring the driver-caps quirk handling in snd-hda-intel
   - More consistent control names representing the topology better
   - Fixups: HP mute LED with ALC268 codec, Ideapad S210 built-in mic
     fix, ASUS Z99He laptop EAPD

  ASoC:
   - Conversion of AC'97 drivers to use regmap, bringing us closer to
     the removal of the ASoC level I/O code
   - Clean up a lot of old drivers that were open coding things that
     have subsequently been implemented in the core
   - Some DAPM performance improvements
   - Removal of the now seldom used CODEC mutex
   - Lots of updates for the newer Intel SoC support, including support
     for the DSP and some Cherrytrail and Braswell machine drivers
   - Support for Samsung boards using rt5631 as the CODEC
   - Removal of the obsolete AFEB9260 machine driver
   - Driver support for the TI TS3A227E headset driver used in some
     Chrombeooks

  Others:
   - ASIHPI driver update and cleanups
   - Lots of dev_*() printk conversions
   - Lots of trivial cleanups for the codes spotted by Coccinelle"

* tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits)
  ALSA: pcxhr: NULL dereference on probe failure
  ALSA: lola: NULL dereference on probe failure
  ALSA: hda - Add "eapd" model string for AD1986A codec
  ALSA: hda - Add EAPD fixup for ASUS Z99He laptop
  ALSA: oxfw: Add hwdep interface
  ALSA: oxfw: Add support for capture/playback MIDI messages
  ALSA: oxfw: add support for capturing PCM samples
  ALSA: oxfw: Add support AMDTP in-stream
  ALSA: oxfw: Add support for Behringer/Mackie devices
  ALSA: oxfw: Change the way to start stream
  ALSA: oxfw: Add proc interface for debugging purpose
  ALSA: oxfw: Change the way to make PCM rules/constraints
  ALSA: oxfw: Add support for AV/C stream format command to get/set supported stream formation
  ALSA: oxfw: Change the way to name card
  ALSA: dice: Add support for MIDI capture/playback
  ALSA: dice: Add support for capturing PCM samples
  ALSA: dice: Support for non SYT-Match sampling clock source mode
  ALSA: dice: Add support for duplex streams with synchronization
  ALSA: dice: Change the way to start stream
  ALSA: jack: Add dummy snd_jack_set_key() definition
  ...

1 files changed, 449 insertions, 0 deletions

diff --git a/sound/soc/intel/sst/sst_pvt.c b/sound/soc/intel/sst/sst_pvt.c
new file mode 100644
index 0000000..4b77208
--- /dev/null
+++ b/sound/soc/intel/sst/sst_pvt.c
@@ -0,0 +1,449 @@
+/*
+ *  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);
+}