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linux/sound/soc/sof/ops.h
Daniel Baluta 285880a23d
ASoC: SOF: Make creation of machine device from SOF core optional 
Currently, SOF probes machine drivers by creating a platform device
and passing the machine description as private data.

This is driven by the ACPI restrictions. Ideally, ACPI tables
should contain the description for the machine driver. This is
not possible because ACPI tables are frozen and used on multiple
OS-es (e.g Windows).

In the case of Device Tree we don't have this restriction, so we
choose to probe the machine drivers by creating a DT node as is
the standard ALSA way.

This patch makes the probing of machine drivers from SOF
core optional allowing for Device Tree platforms to decouple
the SOF core from machine driver probing.

Along with this, it also consolidates the machine driver selection
for Intel platforms by defining optional ops for selecting the machine
driver based on the ACPI match for HDA and non-HDA platforms and
setting the mach params.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191204211556.12671-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-12-09 18:39:35 +00:00

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/* SPDX-License-Identifier: (GPL-2.0 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 Intel Corporation. All rights reserved.
*
* Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
*/
#ifndef __SOUND_SOC_SOF_IO_H
#define __SOUND_SOC_SOF_IO_H
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <sound/pcm.h>
#include "sof-priv.h"
#define sof_ops(sdev) \
((sdev)->pdata->desc->ops)
/* Mandatory operations are verified during probing */
/* init */
static inline int snd_sof_probe(struct snd_sof_dev *sdev)
{
return sof_ops(sdev)->probe(sdev);
}
static inline int snd_sof_remove(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->remove)
return sof_ops(sdev)->remove(sdev);
return 0;
}
/* control */
/*
* snd_sof_dsp_run returns the core mask of the cores that are available
* after successful fw boot
*/
static inline int snd_sof_dsp_run(struct snd_sof_dev *sdev)
{
return sof_ops(sdev)->run(sdev);
}
static inline int snd_sof_dsp_stall(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->stall)
return sof_ops(sdev)->stall(sdev);
return 0;
}
static inline int snd_sof_dsp_reset(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->reset)
return sof_ops(sdev)->reset(sdev);
return 0;
}
/* dsp core power up/power down */
static inline int snd_sof_dsp_core_power_up(struct snd_sof_dev *sdev,
unsigned int core_mask)
{
if (sof_ops(sdev)->core_power_up)
return sof_ops(sdev)->core_power_up(sdev, core_mask);
return 0;
}
static inline int snd_sof_dsp_core_power_down(struct snd_sof_dev *sdev,
unsigned int core_mask)
{
if (sof_ops(sdev)->core_power_down)
return sof_ops(sdev)->core_power_down(sdev, core_mask);
return 0;
}
/* pre/post fw load */
static inline int snd_sof_dsp_pre_fw_run(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->pre_fw_run)
return sof_ops(sdev)->pre_fw_run(sdev);
return 0;
}
static inline int snd_sof_dsp_post_fw_run(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->post_fw_run)
return sof_ops(sdev)->post_fw_run(sdev);
return 0;
}
/* misc */
/**
* snd_sof_dsp_get_bar_index - Maps a section type with a BAR index
*
* @sdev: sof device
* @type: section type as described by snd_sof_fw_blk_type
*
* Returns the corresponding BAR index (a positive integer) or -EINVAL
* in case there is no mapping
*/
static inline int snd_sof_dsp_get_bar_index(struct snd_sof_dev *sdev, u32 type)
{
if (sof_ops(sdev)->get_bar_index)
return sof_ops(sdev)->get_bar_index(sdev, type);
return sdev->mmio_bar;
}
static inline int snd_sof_dsp_get_mailbox_offset(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->get_mailbox_offset)
return sof_ops(sdev)->get_mailbox_offset(sdev);
dev_err(sdev->dev, "error: %s not defined\n", __func__);
return -ENOTSUPP;
}
static inline int snd_sof_dsp_get_window_offset(struct snd_sof_dev *sdev,
u32 id)
{
if (sof_ops(sdev)->get_window_offset)
return sof_ops(sdev)->get_window_offset(sdev, id);
dev_err(sdev->dev, "error: %s not defined\n", __func__);
return -ENOTSUPP;
}
/* power management */
static inline int snd_sof_dsp_resume(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->resume)
return sof_ops(sdev)->resume(sdev);
return 0;
}
static inline int snd_sof_dsp_suspend(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->suspend)
return sof_ops(sdev)->suspend(sdev);
return 0;
}
static inline int snd_sof_dsp_runtime_resume(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->runtime_resume)
return sof_ops(sdev)->runtime_resume(sdev);
return 0;
}
static inline int snd_sof_dsp_runtime_suspend(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->runtime_suspend)
return sof_ops(sdev)->runtime_suspend(sdev);
return 0;
}
static inline int snd_sof_dsp_runtime_idle(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->runtime_idle)
return sof_ops(sdev)->runtime_idle(sdev);
return 0;
}
static inline int snd_sof_dsp_hw_params_upon_resume(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->set_hw_params_upon_resume)
return sof_ops(sdev)->set_hw_params_upon_resume(sdev);
return 0;
}
static inline int snd_sof_dsp_set_clk(struct snd_sof_dev *sdev, u32 freq)
{
if (sof_ops(sdev)->set_clk)
return sof_ops(sdev)->set_clk(sdev, freq);
return 0;
}
static inline int snd_sof_dsp_set_power_state(struct snd_sof_dev *sdev,
enum sof_d0_substate substate)
{
if (sof_ops(sdev)->set_power_state)
return sof_ops(sdev)->set_power_state(sdev, substate);
/* D0 substate is not supported */
return -ENOTSUPP;
}
/* debug */
static inline void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
{
if (sof_ops(sdev)->dbg_dump)
return sof_ops(sdev)->dbg_dump(sdev, flags);
}
static inline void snd_sof_ipc_dump(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->ipc_dump)
return sof_ops(sdev)->ipc_dump(sdev);
}
/* register IO */
static inline void snd_sof_dsp_write(struct snd_sof_dev *sdev, u32 bar,
u32 offset, u32 value)
{
if (sof_ops(sdev)->write) {
sof_ops(sdev)->write(sdev, sdev->bar[bar] + offset, value);
return;
}
dev_err_ratelimited(sdev->dev, "error: %s not defined\n", __func__);
}
static inline void snd_sof_dsp_write64(struct snd_sof_dev *sdev, u32 bar,
u32 offset, u64 value)
{
if (sof_ops(sdev)->write64) {
sof_ops(sdev)->write64(sdev, sdev->bar[bar] + offset, value);
return;
}
dev_err_ratelimited(sdev->dev, "error: %s not defined\n", __func__);
}
static inline u32 snd_sof_dsp_read(struct snd_sof_dev *sdev, u32 bar,
u32 offset)
{
if (sof_ops(sdev)->read)
return sof_ops(sdev)->read(sdev, sdev->bar[bar] + offset);
dev_err(sdev->dev, "error: %s not defined\n", __func__);
return -ENOTSUPP;
}
static inline u64 snd_sof_dsp_read64(struct snd_sof_dev *sdev, u32 bar,
u32 offset)
{
if (sof_ops(sdev)->read64)
return sof_ops(sdev)->read64(sdev, sdev->bar[bar] + offset);
dev_err(sdev->dev, "error: %s not defined\n", __func__);
return -ENOTSUPP;
}
/* block IO */
static inline void snd_sof_dsp_block_read(struct snd_sof_dev *sdev, u32 bar,
u32 offset, void *dest, size_t bytes)
{
sof_ops(sdev)->block_read(sdev, bar, offset, dest, bytes);
}
static inline void snd_sof_dsp_block_write(struct snd_sof_dev *sdev, u32 bar,
u32 offset, void *src, size_t bytes)
{
sof_ops(sdev)->block_write(sdev, bar, offset, src, bytes);
}
/* ipc */
static inline int snd_sof_dsp_send_msg(struct snd_sof_dev *sdev,
struct snd_sof_ipc_msg *msg)
{
return sof_ops(sdev)->send_msg(sdev, msg);
}
/* host DMA trace */
static inline int snd_sof_dma_trace_init(struct snd_sof_dev *sdev,
u32 *stream_tag)
{
if (sof_ops(sdev)->trace_init)
return sof_ops(sdev)->trace_init(sdev, stream_tag);
return 0;
}
static inline int snd_sof_dma_trace_release(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev)->trace_release)
return sof_ops(sdev)->trace_release(sdev);
return 0;
}
static inline int snd_sof_dma_trace_trigger(struct snd_sof_dev *sdev, int cmd)
{
if (sof_ops(sdev)->trace_trigger)
return sof_ops(sdev)->trace_trigger(sdev, cmd);
return 0;
}
/* host PCM ops */
static inline int
snd_sof_pcm_platform_open(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream)
{
if (sof_ops(sdev) && sof_ops(sdev)->pcm_open)
return sof_ops(sdev)->pcm_open(sdev, substream);
return 0;
}
/* disconnect pcm substream to a host stream */
static inline int
snd_sof_pcm_platform_close(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream)
{
if (sof_ops(sdev) && sof_ops(sdev)->pcm_close)
return sof_ops(sdev)->pcm_close(sdev, substream);
return 0;
}
/* host stream hw params */
static inline int
snd_sof_pcm_platform_hw_params(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct sof_ipc_stream_params *ipc_params)
{
if (sof_ops(sdev) && sof_ops(sdev)->pcm_hw_params)
return sof_ops(sdev)->pcm_hw_params(sdev, substream,
params, ipc_params);
return 0;
}
/* host stream hw free */
static inline int
snd_sof_pcm_platform_hw_free(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream)
{
if (sof_ops(sdev) && sof_ops(sdev)->pcm_hw_free)
return sof_ops(sdev)->pcm_hw_free(sdev, substream);
return 0;
}
/* host stream trigger */
static inline int
snd_sof_pcm_platform_trigger(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream, int cmd)
{
if (sof_ops(sdev) && sof_ops(sdev)->pcm_trigger)
return sof_ops(sdev)->pcm_trigger(sdev, substream, cmd);
return 0;
}
/* host DSP message data */
static inline void snd_sof_ipc_msg_data(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream,
void *p, size_t sz)
{
sof_ops(sdev)->ipc_msg_data(sdev, substream, p, sz);
}
/* host configure DSP HW parameters */
static inline int
snd_sof_ipc_pcm_params(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream,
const struct sof_ipc_pcm_params_reply *reply)
{
return sof_ops(sdev)->ipc_pcm_params(sdev, substream, reply);
}
/* host stream pointer */
static inline snd_pcm_uframes_t
snd_sof_pcm_platform_pointer(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream)
{
if (sof_ops(sdev) && sof_ops(sdev)->pcm_pointer)
return sof_ops(sdev)->pcm_pointer(sdev, substream);
return 0;
}
/* machine driver */
static inline int
snd_sof_machine_register(struct snd_sof_dev *sdev, void *pdata)
{
if (sof_ops(sdev) && sof_ops(sdev)->machine_register)
return sof_ops(sdev)->machine_register(sdev, pdata);
return 0;
}
static inline void
snd_sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata)
{
if (sof_ops(sdev) && sof_ops(sdev)->machine_unregister)
sof_ops(sdev)->machine_unregister(sdev, pdata);
}
static inline void
snd_sof_machine_select(struct snd_sof_dev *sdev)
{
if (sof_ops(sdev) && sof_ops(sdev)->machine_select)
sof_ops(sdev)->machine_select(sdev);
}
static inline void
snd_sof_set_mach_params(const struct snd_soc_acpi_mach *mach,
struct device *dev)
{
struct snd_sof_dev *sdev = dev_get_drvdata(dev);
if (sof_ops(sdev) && sof_ops(sdev)->set_mach_params)
sof_ops(sdev)->set_mach_params(mach, dev);
}
static inline const struct snd_sof_dsp_ops
*sof_get_ops(const struct sof_dev_desc *d,
const struct sof_ops_table mach_ops[], int asize)
{
int i;
for (i = 0; i < asize; i++) {
if (d == mach_ops[i].desc)
return mach_ops[i].ops;
}
/* not found */
return NULL;
}
/**
* snd_sof_dsp_register_poll_timeout - Periodically poll an address
* until a condition is met or a timeout occurs
* @op: accessor function (takes @addr as its only argument)
* @addr: Address to poll
* @val: Variable to read the value into
* @cond: Break condition (usually involving @val)
* @sleep_us: Maximum time to sleep between reads in us (0
* tight-loops). Should be less than ~20ms since usleep_range
* is used (see Documentation/timers/timers-howto.rst).
* @timeout_us: Timeout in us, 0 means never timeout
*
* Returns 0 on success and -ETIMEDOUT upon a timeout. In either
* case, the last read value at @addr is stored in @val. Must not
* be called from atomic context if sleep_us or timeout_us are used.
*
* This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
*/
#define snd_sof_dsp_read_poll_timeout(sdev, bar, offset, val, cond, sleep_us, timeout_us) \
({ \
u64 __timeout_us = (timeout_us); \
unsigned long __sleep_us = (sleep_us); \
ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
might_sleep_if((__sleep_us) != 0); \
for (;;) { \
(val) = snd_sof_dsp_read(sdev, bar, offset); \
if (cond) { \
dev_dbg(sdev->dev, \
"FW Poll Status: reg=%#x successful\n", (val)); \
break; \
} \
if (__timeout_us && \
ktime_compare(ktime_get(), __timeout) > 0) { \
(val) = snd_sof_dsp_read(sdev, bar, offset); \
dev_dbg(sdev->dev, \
"FW Poll Status: reg=%#x timedout\n", (val)); \
break; \
} \
if (__sleep_us) \
usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
} \
(cond) ? 0 : -ETIMEDOUT; \
})
/* This is for registers bits with attribute RWC */
bool snd_sof_pci_update_bits(struct snd_sof_dev *sdev, u32 offset,
u32 mask, u32 value);
bool snd_sof_dsp_update_bits_unlocked(struct snd_sof_dev *sdev, u32 bar,
u32 offset, u32 mask, u32 value);
bool snd_sof_dsp_update_bits64_unlocked(struct snd_sof_dev *sdev, u32 bar,
u32 offset, u64 mask, u64 value);
bool snd_sof_dsp_update_bits(struct snd_sof_dev *sdev, u32 bar, u32 offset,
u32 mask, u32 value);
bool snd_sof_dsp_update_bits64(struct snd_sof_dev *sdev, u32 bar,
u32 offset, u64 mask, u64 value);
void snd_sof_dsp_update_bits_forced(struct snd_sof_dev *sdev, u32 bar,
u32 offset, u32 mask, u32 value);
int snd_sof_dsp_register_poll(struct snd_sof_dev *sdev, u32 bar, u32 offset,
u32 mask, u32 target, u32 timeout_ms,
u32 interval_us);
void snd_sof_dsp_panic(struct snd_sof_dev *sdev, u32 offset);
#endif
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