[linux-2.6-block.git] / sound / soc / sof / intel / atom.c

// SPDX-License-Identifier: (GPL-2.0-only 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) 2018-2021 Intel Corporation
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//

/*
 * Hardware interface for audio DSP on Atom devices
 */

#include <linux/module.h>
#include <sound/sof.h>
#include <sound/sof/xtensa.h>
#include <sound/soc-acpi.h>
#include <sound/soc-acpi-intel-match.h>
#include <sound/intel-dsp-config.h>
#include "../ops.h"
#include "shim.h"
#include "atom.h"
#include "../sof-acpi-dev.h"
#include "../sof-audio.h"
#include "../../intel/common/soc-intel-quirks.h"

static void atom_host_done(struct snd_sof_dev *sdev);
static void atom_dsp_done(struct snd_sof_dev *sdev);

/*
 * Debug
 */

static void atom_get_registers(struct snd_sof_dev *sdev,
			       struct sof_ipc_dsp_oops_xtensa *xoops,
			       struct sof_ipc_panic_info *panic_info,
			       u32 *stack, size_t stack_words)
{
	u32 offset = sdev->dsp_oops_offset;

	/* first read regsisters */
	sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));

	/* note: variable AR register array is not read */

	/* then get panic info */
	if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
		dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
			xoops->arch_hdr.totalsize);
		return;
	}
	offset += xoops->arch_hdr.totalsize;
	sof_mailbox_read(sdev, offset, panic_info, sizeof(*panic_info));

	/* then get the stack */
	offset += sizeof(*panic_info);
	sof_mailbox_read(sdev, offset, stack, stack_words * sizeof(u32));
}

void atom_dump(struct snd_sof_dev *sdev, u32 flags)
{
	struct sof_ipc_dsp_oops_xtensa xoops;
	struct sof_ipc_panic_info panic_info;
	u32 stack[STACK_DUMP_SIZE];
	u64 status, panic, imrd, imrx;

	/* now try generic SOF status messages */
	status = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCD);
	panic = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
	atom_get_registers(sdev, &xoops, &panic_info, stack,
			   STACK_DUMP_SIZE);
	sof_print_oops_and_stack(sdev, KERN_ERR, status, panic, &xoops,
				 &panic_info, stack, STACK_DUMP_SIZE);

	/* provide some context for firmware debug */
	imrx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IMRX);
	imrd = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IMRD);
	dev_err(sdev->dev,
		"error: ipc host -> DSP: pending %s complete %s raw 0x%llx\n",
		(panic & SHIM_IPCX_BUSY) ? "yes" : "no",
		(panic & SHIM_IPCX_DONE) ? "yes" : "no", panic);
	dev_err(sdev->dev,
		"error: mask host: pending %s complete %s raw 0x%llx\n",
		(imrx & SHIM_IMRX_BUSY) ? "yes" : "no",
		(imrx & SHIM_IMRX_DONE) ? "yes" : "no", imrx);
	dev_err(sdev->dev,
		"error: ipc DSP -> host: pending %s complete %s raw 0x%llx\n",
		(status & SHIM_IPCD_BUSY) ? "yes" : "no",
		(status & SHIM_IPCD_DONE) ? "yes" : "no", status);
	dev_err(sdev->dev,
		"error: mask DSP: pending %s complete %s raw 0x%llx\n",
		(imrd & SHIM_IMRD_BUSY) ? "yes" : "no",
		(imrd & SHIM_IMRD_DONE) ? "yes" : "no", imrd);

}
EXPORT_SYMBOL_NS(atom_dump, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

/*
 * IPC Doorbell IRQ handler and thread.
 */

irqreturn_t atom_irq_handler(int irq, void *context)
{
	struct snd_sof_dev *sdev = context;
	u64 ipcx, ipcd;
	int ret = IRQ_NONE;

	ipcx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
	ipcd = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCD);

	if (ipcx & SHIM_BYT_IPCX_DONE) {

		/* reply message from DSP, Mask Done interrupt first */
		snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR,
						   SHIM_IMRX,
						   SHIM_IMRX_DONE,
						   SHIM_IMRX_DONE);
		ret = IRQ_WAKE_THREAD;
	}

	if (ipcd & SHIM_BYT_IPCD_BUSY) {

		/* new message from DSP, Mask Busy interrupt first */
		snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR,
						   SHIM_IMRX,
						   SHIM_IMRX_BUSY,
						   SHIM_IMRX_BUSY);
		ret = IRQ_WAKE_THREAD;
	}

	return ret;
}
EXPORT_SYMBOL_NS(atom_irq_handler, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

irqreturn_t atom_irq_thread(int irq, void *context)
{
	struct snd_sof_dev *sdev = context;
	u64 ipcx, ipcd;

	ipcx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
	ipcd = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCD);

	/* reply message from DSP */
	if (ipcx & SHIM_BYT_IPCX_DONE) {

		spin_lock_irq(&sdev->ipc_lock);

		/*
		 * handle immediate reply from DSP core. If the msg is
		 * found, set done bit in cmd_done which is called at the
		 * end of message processing function, else set it here
		 * because the done bit can't be set in cmd_done function
		 * which is triggered by msg
		 */
		snd_sof_ipc_process_reply(sdev, ipcx);

		atom_dsp_done(sdev);

		spin_unlock_irq(&sdev->ipc_lock);
	}

	/* new message from DSP */
	if (ipcd & SHIM_BYT_IPCD_BUSY) {

		/* Handle messages from DSP Core */
		if ((ipcd & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
			snd_sof_dsp_panic(sdev, PANIC_OFFSET(ipcd) + MBOX_OFFSET,
					  true);
		} else {
			snd_sof_ipc_msgs_rx(sdev);
		}

		atom_host_done(sdev);
	}

	return IRQ_HANDLED;
}
EXPORT_SYMBOL_NS(atom_irq_thread, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

int atom_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
{
	/* unmask and prepare to receive Done interrupt */
	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IMRX,
					   SHIM_IMRX_DONE, 0);

	/* send the message */
	sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
			  msg->msg_size);
	snd_sof_dsp_write64(sdev, DSP_BAR, SHIM_IPCX, SHIM_BYT_IPCX_BUSY);

	return 0;
}
EXPORT_SYMBOL_NS(atom_send_msg, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

int atom_get_mailbox_offset(struct snd_sof_dev *sdev)
{
	return MBOX_OFFSET;
}
EXPORT_SYMBOL_NS(atom_get_mailbox_offset, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

int atom_get_window_offset(struct snd_sof_dev *sdev, u32 id)
{
	return MBOX_OFFSET;
}
EXPORT_SYMBOL_NS(atom_get_window_offset, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

static void atom_host_done(struct snd_sof_dev *sdev)
{
	/* clear BUSY bit and set DONE bit - accept new messages */
	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IPCD,
					   SHIM_BYT_IPCD_BUSY |
					   SHIM_BYT_IPCD_DONE,
					   SHIM_BYT_IPCD_DONE);

	/* unmask and prepare to receive next new message */
	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IMRX,
					   SHIM_IMRX_BUSY, 0);
}

static void atom_dsp_done(struct snd_sof_dev *sdev)
{
	/* clear DONE bit - tell DSP we have completed */
	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IPCX,
					   SHIM_BYT_IPCX_DONE, 0);
}

/*
 * DSP control.
 */

int atom_run(struct snd_sof_dev *sdev)
{
	int tries = 10;

	/* release stall and wait to unstall */
	snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR,
				  SHIM_BYT_CSR_STALL, 0x0);
	while (tries--) {
		if (!(snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_CSR) &
		      SHIM_BYT_CSR_PWAITMODE))
			break;
		msleep(100);
	}
	if (tries < 0)
		return -ENODEV;

	/* return init core mask */
	return 1;
}
EXPORT_SYMBOL_NS(atom_run, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

int atom_reset(struct snd_sof_dev *sdev)
{
	/* put DSP into reset, set reset vector and stall */
	snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR,
				  SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL |
				  SHIM_BYT_CSR_STALL,
				  SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL |
				  SHIM_BYT_CSR_STALL);

	usleep_range(10, 15);

	/* take DSP out of reset and keep stalled for FW loading */
	snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR,
				  SHIM_BYT_CSR_RST, 0);

	return 0;
}
EXPORT_SYMBOL_NS(atom_reset, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
				   const char *sof_tplg_filename,
				   const char *ssp_str)
{
	const char *tplg_filename = NULL;
	const char *split_ext;
	char *filename, *tmp;

	filename = kstrdup(sof_tplg_filename, GFP_KERNEL);
	if (!filename)
		return NULL;

	/* this assumes a .tplg extension */
	tmp = filename;
	split_ext = strsep(&tmp, ".");
	if (split_ext)
		tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
					       "%s-%s.tplg",
					       split_ext, ssp_str);
	kfree(filename);

	return tplg_filename;
}

struct snd_soc_acpi_mach *atom_machine_select(struct snd_sof_dev *sdev)
{
	struct snd_sof_pdata *sof_pdata = sdev->pdata;
	const struct sof_dev_desc *desc = sof_pdata->desc;
	struct snd_soc_acpi_mach *mach;
	struct platform_device *pdev;
	const char *tplg_filename;

	mach = snd_soc_acpi_find_machine(desc->machines);
	if (!mach) {
		dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n");
		return NULL;
	}

	pdev = to_platform_device(sdev->dev);
	if (soc_intel_is_byt_cr(pdev)) {
		dev_dbg(sdev->dev,
			"BYT-CR detected, SSP0 used instead of SSP2\n");

		tplg_filename = fixup_tplg_name(sdev,
						mach->sof_tplg_filename,
						"ssp0");
	} else {
		tplg_filename = mach->sof_tplg_filename;
	}

	if (!tplg_filename) {
		dev_dbg(sdev->dev,
			"error: no topology filename\n");
		return NULL;
	}

	sof_pdata->tplg_filename = tplg_filename;
	mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc;

	return mach;
}
EXPORT_SYMBOL_NS(atom_machine_select, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

/* Atom DAIs */
struct snd_soc_dai_driver atom_dai[] = {
{
	.name = "ssp0-port",
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
},
{
	.name = "ssp1-port",
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
},
{
	.name = "ssp2-port",
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	}
},
{
	.name = "ssp3-port",
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
},
{
	.name = "ssp4-port",
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
},
{
	.name = "ssp5-port",
	.playback = {
		.channels_min = 1,
		.channels_max = 8,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 8,
	},
},
};
EXPORT_SYMBOL_NS(atom_dai, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

void atom_set_mach_params(struct snd_soc_acpi_mach *mach,
			  struct snd_sof_dev *sdev)
{
	struct snd_sof_pdata *pdata = sdev->pdata;
	const struct sof_dev_desc *desc = pdata->desc;
	struct snd_soc_acpi_mach_params *mach_params;

	mach_params = &mach->mach_params;
	mach_params->platform = dev_name(sdev->dev);
	mach_params->num_dai_drivers = desc->ops->num_drv;
	mach_params->dai_drivers = desc->ops->drv;
}
EXPORT_SYMBOL_NS(atom_set_mach_params, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);

MODULE_LICENSE("Dual BSD/GPL");
Commit	Line	Data
47fad239 PLB	1	// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
	2	//
	3	// This file is provided under a dual BSD/GPLv2 license. When using or
	4	// redistributing this file, you may do so under either license.
	5	//
293ad281	6	// Copyright(c) 2018-2021 Intel Corporation
47fad239 PLB	7	//
	8	// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
	9	//
	10
	11	/*
	12	* Hardware interface for audio DSP on Atom devices
	13	*/
	14
	15	#include <linux/module.h>
	16	#include <sound/sof.h>
	17	#include <sound/sof/xtensa.h>
	18	#include <sound/soc-acpi.h>
	19	#include <sound/soc-acpi-intel-match.h>
	20	#include <sound/intel-dsp-config.h>
	21	#include "../ops.h"
	22	#include "shim.h"
	23	#include "atom.h"
	24	#include "../sof-acpi-dev.h"
	25	#include "../sof-audio.h"
	26	#include "../../intel/common/soc-intel-quirks.h"
	27
	28	static void atom_host_done(struct snd_sof_dev *sdev);
	29	static void atom_dsp_done(struct snd_sof_dev *sdev);
47fad239 PLB	30
	31	/*
	32	* Debug
	33	*/
	34
	35	static void atom_get_registers(struct snd_sof_dev *sdev,
	36	struct sof_ipc_dsp_oops_xtensa *xoops,
	37	struct sof_ipc_panic_info *panic_info,
	38	u32 *stack, size_t stack_words)
	39	{
	40	u32 offset = sdev->dsp_oops_offset;
	41
	42	/* first read regsisters */
	43	sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
	44
	45	/* note: variable AR register array is not read */
	46
	47	/* then get panic info */
	48	if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
	49	dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
	50	xoops->arch_hdr.totalsize);
	51	return;
	52	}
	53	offset += xoops->arch_hdr.totalsize;
	54	sof_mailbox_read(sdev, offset, panic_info, sizeof(*panic_info));
	55
	56	/* then get the stack */
	57	offset += sizeof(*panic_info);
	58	sof_mailbox_read(sdev, offset, stack, stack_words * sizeof(u32));
	59	}
	60
	61	void atom_dump(struct snd_sof_dev *sdev, u32 flags)
	62	{
	63	struct sof_ipc_dsp_oops_xtensa xoops;
	64	struct sof_ipc_panic_info panic_info;
	65	u32 stack[STACK_DUMP_SIZE];
	66	u64 status, panic, imrd, imrx;
	67
	68	/* now try generic SOF status messages */
	69	status = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCD);
	70	panic = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
	71	atom_get_registers(sdev, &xoops, &panic_info, stack,
	72	STACK_DUMP_SIZE);
4995ffce PU	73	sof_print_oops_and_stack(sdev, KERN_ERR, status, panic, &xoops,
4995ffce PU	74	&panic_info, stack, STACK_DUMP_SIZE);
47fad239 PLB	75
	76	/* provide some context for firmware debug */
	77	imrx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IMRX);
	78	imrd = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IMRD);
	79	dev_err(sdev->dev,
	80	"error: ipc host -> DSP: pending %s complete %s raw 0x%llx\n",
	81	(panic & SHIM_IPCX_BUSY) ? "yes" : "no",
	82	(panic & SHIM_IPCX_DONE) ? "yes" : "no", panic);
	83	dev_err(sdev->dev,
	84	"error: mask host: pending %s complete %s raw 0x%llx\n",
	85	(imrx & SHIM_IMRX_BUSY) ? "yes" : "no",
	86	(imrx & SHIM_IMRX_DONE) ? "yes" : "no", imrx);
	87	dev_err(sdev->dev,
	88	"error: ipc DSP -> host: pending %s complete %s raw 0x%llx\n",
	89	(status & SHIM_IPCD_BUSY) ? "yes" : "no",
	90	(status & SHIM_IPCD_DONE) ? "yes" : "no", status);
	91	dev_err(sdev->dev,
	92	"error: mask DSP: pending %s complete %s raw 0x%llx\n",
	93	(imrd & SHIM_IMRD_BUSY) ? "yes" : "no",
	94	(imrd & SHIM_IMRD_DONE) ? "yes" : "no", imrd);
	95
	96	}
	97	EXPORT_SYMBOL_NS(atom_dump, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	98
	99	/*
	100	* IPC Doorbell IRQ handler and thread.
	101	*/
	102
	103	irqreturn_t atom_irq_handler(int irq, void *context)
	104	{
	105	struct snd_sof_dev *sdev = context;
	106	u64 ipcx, ipcd;
	107	int ret = IRQ_NONE;
	108
	109	ipcx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
	110	ipcd = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCD);
	111
	112	if (ipcx & SHIM_BYT_IPCX_DONE) {
	113
	114	/* reply message from DSP, Mask Done interrupt first */
	115	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR,
	116	SHIM_IMRX,
	117	SHIM_IMRX_DONE,
	118	SHIM_IMRX_DONE);
	119	ret = IRQ_WAKE_THREAD;
	120	}
	121
	122	if (ipcd & SHIM_BYT_IPCD_BUSY) {
	123
	124	/* new message from DSP, Mask Busy interrupt first */
	125	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR,
	126	SHIM_IMRX,
	127	SHIM_IMRX_BUSY,
	128	SHIM_IMRX_BUSY);
	129	ret = IRQ_WAKE_THREAD;
	130	}
	131
	132	return ret;
	133	}
	134	EXPORT_SYMBOL_NS(atom_irq_handler, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	135
	136	irqreturn_t atom_irq_thread(int irq, void *context)
	137	{
	138	struct snd_sof_dev *sdev = context;
139	u64 ipcx, ipcd;
140
141	ipcx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
142	ipcd = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCD);
143
144	/* reply message from DSP */
145	if (ipcx & SHIM_BYT_IPCX_DONE) {
146
147	spin_lock_irq(&sdev->ipc_lock);
148
149	/*
150	* handle immediate reply from DSP core. If the msg is
151	* found, set done bit in cmd_done which is called at the
152	* end of message processing function, else set it here
153	* because the done bit can't be set in cmd_done function
154	* which is triggered by msg
155	*/
0bd2891b	156	snd_sof_ipc_process_reply(sdev, ipcx);
47fad239 PLB	157
	158	atom_dsp_done(sdev);
	159
	160	spin_unlock_irq(&sdev->ipc_lock);
	161	}
	162
	163	/* new message from DSP */
	164	if (ipcd & SHIM_BYT_IPCD_BUSY) {
	165
	166	/* Handle messages from DSP Core */
	167	if ((ipcd & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
b2b10aa7 PU	168	snd_sof_dsp_panic(sdev, PANIC_OFFSET(ipcd) + MBOX_OFFSET,
b2b10aa7 PU	169	true);
47fad239 PLB	170	} else {
	171	snd_sof_ipc_msgs_rx(sdev);
	172	}
	173
	174	atom_host_done(sdev);
	175	}
	176
	177	return IRQ_HANDLED;
	178	}
	179	EXPORT_SYMBOL_NS(atom_irq_thread, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	180
	181	int atom_send_msg(struct snd_sof_dev sdev, struct snd_sof_ipc_msg msg)
	182	{
	183	/* unmask and prepare to receive Done interrupt */
	184	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IMRX,
	185	SHIM_IMRX_DONE, 0);
	186
	187	/* send the message */
	188	sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
	189	msg->msg_size);
	190	snd_sof_dsp_write64(sdev, DSP_BAR, SHIM_IPCX, SHIM_BYT_IPCX_BUSY);
	191
	192	return 0;
	193	}
	194	EXPORT_SYMBOL_NS(atom_send_msg, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	195
47fad239 PLB	196	int atom_get_mailbox_offset(struct snd_sof_dev *sdev)
	197	{
	198	return MBOX_OFFSET;
	199	}
	200	EXPORT_SYMBOL_NS(atom_get_mailbox_offset, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	201
	202	int atom_get_window_offset(struct snd_sof_dev *sdev, u32 id)
	203	{
	204	return MBOX_OFFSET;
	205	}
	206	EXPORT_SYMBOL_NS(atom_get_window_offset, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	207
	208	static void atom_host_done(struct snd_sof_dev *sdev)
	209	{
	210	/* clear BUSY bit and set DONE bit - accept new messages */
	211	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IPCD,
	212	SHIM_BYT_IPCD_BUSY \|
	213	SHIM_BYT_IPCD_DONE,
	214	SHIM_BYT_IPCD_DONE);
	215
	216	/* unmask and prepare to receive next new message */
	217	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IMRX,
	218	SHIM_IMRX_BUSY, 0);
	219	}
	220
	221	static void atom_dsp_done(struct snd_sof_dev *sdev)
	222	{
	223	/* clear DONE bit - tell DSP we have completed */
	224	snd_sof_dsp_update_bits64_unlocked(sdev, DSP_BAR, SHIM_IPCX,
	225	SHIM_BYT_IPCX_DONE, 0);
	226	}
	227
	228	/*
	229	* DSP control.
	230	*/
	231
	232	int atom_run(struct snd_sof_dev *sdev)
	233	{
	234	int tries = 10;
	235
	236	/* release stall and wait to unstall */
	237	snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR,
	238	SHIM_BYT_CSR_STALL, 0x0);
	239	while (tries--) {
	240	if (!(snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_CSR) &
	241	SHIM_BYT_CSR_PWAITMODE))
	242	break;
	243	msleep(100);
	244	}
e131bc58	245	if (tries < 0)
47fad239	246	return -ENODEV;
47fad239 PLB	247
	248	/* return init core mask */
	249	return 1;
	250	}
	251	EXPORT_SYMBOL_NS(atom_run, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	252
	253	int atom_reset(struct snd_sof_dev *sdev)
	254	{
	255	/* put DSP into reset, set reset vector and stall */
	256	snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR,
	257	SHIM_BYT_CSR_RST \| SHIM_BYT_CSR_VECTOR_SEL \|
	258	SHIM_BYT_CSR_STALL,
	259	SHIM_BYT_CSR_RST \| SHIM_BYT_CSR_VECTOR_SEL \|
	260	SHIM_BYT_CSR_STALL);
	261
	262	usleep_range(10, 15);
	263
	264	/* take DSP out of reset and keep stalled for FW loading */
	265	snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR,
	266	SHIM_BYT_CSR_RST, 0);
	267
	268	return 0;
	269	}
	270	EXPORT_SYMBOL_NS(atom_reset, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	271
	272	static const char fixup_tplg_name(struct snd_sof_dev sdev,
	273	const char *sof_tplg_filename,
	274	const char *ssp_str)
	275	{
	276	const char *tplg_filename = NULL;
27b196c1 PU	277	const char *split_ext;
27b196c1 PU	278	char filename, tmp;
47fad239	279
27b196c1	280	filename = kstrdup(sof_tplg_filename, GFP_KERNEL);
47fad239 PLB	281	if (!filename)
	282	return NULL;
	283
	284	/* this assumes a .tplg extension */
27b196c1 PU	285	tmp = filename;
	286	split_ext = strsep(&tmp, ".");
	287	if (split_ext)
47fad239 PLB	288	tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
	289	"%s-%s.tplg",
	290	split_ext, ssp_str);
27b196c1 PU	291	kfree(filename);
27b196c1 PU	292
47fad239 PLB	293	return tplg_filename;
	294	}
	295
cb515f10	296	struct snd_soc_acpi_mach atom_machine_select(struct snd_sof_dev sdev)
47fad239 PLB	297	{
	298	struct snd_sof_pdata *sof_pdata = sdev->pdata;
	299	const struct sof_dev_desc *desc = sof_pdata->desc;
	300	struct snd_soc_acpi_mach *mach;
	301	struct platform_device *pdev;
	302	const char *tplg_filename;
	303
	304	mach = snd_soc_acpi_find_machine(desc->machines);
	305	if (!mach) {
	306	dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n");
cb515f10	307	return NULL;
47fad239 PLB	308	}
	309
	310	pdev = to_platform_device(sdev->dev);
	311	if (soc_intel_is_byt_cr(pdev)) {
	312	dev_dbg(sdev->dev,
	313	"BYT-CR detected, SSP0 used instead of SSP2\n");
	314
	315	tplg_filename = fixup_tplg_name(sdev,
	316	mach->sof_tplg_filename,
	317	"ssp0");
	318	} else {
	319	tplg_filename = mach->sof_tplg_filename;
	320	}
	321
	322	if (!tplg_filename) {
	323	dev_dbg(sdev->dev,
	324	"error: no topology filename\n");
cb515f10	325	return NULL;
47fad239 PLB	326	}
	327
	328	sof_pdata->tplg_filename = tplg_filename;
	329	mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc;
cb515f10 GL	330
cb515f10 GL	331	return mach;
47fad239 PLB	332	}
	333	EXPORT_SYMBOL_NS(atom_machine_select, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	334
	335	/* Atom DAIs */
	336	struct snd_soc_dai_driver atom_dai[] = {
	337	{
	338	.name = "ssp0-port",
	339	.playback = {
	340	.channels_min = 1,
	341	.channels_max = 8,
	342	},
	343	.capture = {
	344	.channels_min = 1,
	345	.channels_max = 8,
	346	},
	347	},
	348	{
	349	.name = "ssp1-port",
	350	.playback = {
	351	.channels_min = 1,
	352	.channels_max = 8,
	353	},
	354	.capture = {
	355	.channels_min = 1,
	356	.channels_max = 8,
	357	},
	358	},
	359	{
	360	.name = "ssp2-port",
	361	.playback = {
	362	.channels_min = 1,
	363	.channels_max = 8,
	364	},
	365	.capture = {
	366	.channels_min = 1,
	367	.channels_max = 8,
	368	}
	369	},
	370	{
	371	.name = "ssp3-port",
	372	.playback = {
	373	.channels_min = 1,
	374	.channels_max = 8,
	375	},
	376	.capture = {
	377	.channels_min = 1,
	378	.channels_max = 8,
	379	},
	380	},
	381	{
	382	.name = "ssp4-port",
	383	.playback = {
	384	.channels_min = 1,
	385	.channels_max = 8,
	386	},
	387	.capture = {
	388	.channels_min = 1,
	389	.channels_max = 8,
	390	},
	391	},
	392	{
	393	.name = "ssp5-port",
	394	.playback = {
	395	.channels_min = 1,
396	.channels_max = 8,
397	},
398	.capture = {
399	.channels_min = 1,
400	.channels_max = 8,
401	},
402	},
403	};
404	EXPORT_SYMBOL_NS(atom_dai, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
405
cb515f10	406	void atom_set_mach_params(struct snd_soc_acpi_mach *mach,
47fad239 PLB	407	struct snd_sof_dev *sdev)
	408	{
	409	struct snd_sof_pdata *pdata = sdev->pdata;
	410	const struct sof_dev_desc *desc = pdata->desc;
	411	struct snd_soc_acpi_mach_params *mach_params;
	412
cb515f10	413	mach_params = &mach->mach_params;
47fad239 PLB	414	mach_params->platform = dev_name(sdev->dev);
	415	mach_params->num_dai_drivers = desc->ops->num_drv;
	416	mach_params->dai_drivers = desc->ops->drv;
	417	}
	418	EXPORT_SYMBOL_NS(atom_set_mach_params, SND_SOC_SOF_INTEL_ATOM_HIFI_EP);
	419
	420	MODULE_LICENSE("Dual BSD/GPL");