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OpenCloudOS-Kernel/sound/soc/sof/imx/imx8.c

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// Copyright 2019 NXP
//
// Author: Daniel Baluta <daniel.baluta@nxp.com>
//
// Hardware interface for audio DSP on i.MX8
#include <linux/firmware.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/pm_domain.h>
#include <linux/module.h>
#include <sound/sof.h>
#include <sound/sof/xtensa.h>
#include <linux/firmware/imx/ipc.h>
#include <linux/firmware/imx/dsp.h>
#include <linux/firmware/imx/svc/misc.h>
#include <dt-bindings/firmware/imx/rsrc.h>
#include "../ops.h"
#include "../sof-of-dev.h"
#include "imx-common.h"
/* DSP memories */
#define IRAM_OFFSET 0x10000
#define IRAM_SIZE (2 * 1024)
#define DRAM0_OFFSET 0x0
#define DRAM0_SIZE (32 * 1024)
#define DRAM1_OFFSET 0x8000
#define DRAM1_SIZE (32 * 1024)
#define SYSRAM_OFFSET 0x18000
#define SYSRAM_SIZE (256 * 1024)
#define SYSROM_OFFSET 0x58000
#define SYSROM_SIZE (192 * 1024)
#define RESET_VECTOR_VADDR 0x596f8000
#define MBOX_OFFSET 0x800000
#define MBOX_SIZE 0x1000
/* DSP clocks */
static struct clk_bulk_data imx8_dsp_clks[] = {
{ .id = "ipg" },
{ .id = "ocram" },
{ .id = "core" },
};
struct imx8_priv {
struct device *dev;
struct snd_sof_dev *sdev;
/* DSP IPC handler */
struct imx_dsp_ipc *dsp_ipc;
struct platform_device *ipc_dev;
/* System Controller IPC handler */
struct imx_sc_ipc *sc_ipc;
/* Power domain handling */
int num_domains;
struct device **pd_dev;
struct device_link **link;
struct imx_clocks *clks;
};
static int imx8_get_mailbox_offset(struct snd_sof_dev *sdev)
{
return MBOX_OFFSET;
}
static int imx8_get_window_offset(struct snd_sof_dev *sdev, u32 id)
{
return MBOX_OFFSET;
}
static void imx8_dsp_handle_reply(struct imx_dsp_ipc *ipc)
{
struct imx8_priv *priv = imx_dsp_get_data(ipc);
unsigned long flags;
spin_lock_irqsave(&priv->sdev->ipc_lock, flags);
snd_sof_ipc_process_reply(priv->sdev, 0);
spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags);
}
static void imx8_dsp_handle_request(struct imx_dsp_ipc *ipc)
{
struct imx8_priv *priv = imx_dsp_get_data(ipc);
u32 p; /* panic code */
/* Read the message from the debug box. */
sof_mailbox_read(priv->sdev, priv->sdev->debug_box.offset + 4, &p, sizeof(p));
/* Check to see if the message is a panic code (0x0dead***) */
if ((p & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC)
snd_sof_dsp_panic(priv->sdev, p, true);
else
snd_sof_ipc_msgs_rx(priv->sdev);
}
static struct imx_dsp_ops dsp_ops = {
.handle_reply = imx8_dsp_handle_reply,
.handle_request = imx8_dsp_handle_request,
};
static int imx8_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
{
struct imx8_priv *priv = sdev->pdata->hw_pdata;
sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
msg->msg_size);
imx_dsp_ring_doorbell(priv->dsp_ipc, 0);
return 0;
}
/*
* DSP control.
*/
static int imx8x_run(struct snd_sof_dev *sdev)
{
struct imx8_priv *dsp_priv = sdev->pdata->hw_pdata;
int ret;
ret = imx_sc_misc_set_control(dsp_priv->sc_ipc, IMX_SC_R_DSP,
IMX_SC_C_OFS_SEL, 1);
if (ret < 0) {
dev_err(sdev->dev, "Error system address offset source select\n");
return ret;
}
ret = imx_sc_misc_set_control(dsp_priv->sc_ipc, IMX_SC_R_DSP,
IMX_SC_C_OFS_AUDIO, 0x80);
if (ret < 0) {
dev_err(sdev->dev, "Error system address offset of AUDIO\n");
return ret;
}
ret = imx_sc_misc_set_control(dsp_priv->sc_ipc, IMX_SC_R_DSP,
IMX_SC_C_OFS_PERIPH, 0x5A);
if (ret < 0) {
dev_err(sdev->dev, "Error system address offset of PERIPH %d\n",
ret);
return ret;
}
ret = imx_sc_misc_set_control(dsp_priv->sc_ipc, IMX_SC_R_DSP,
IMX_SC_C_OFS_IRQ, 0x51);
if (ret < 0) {
dev_err(sdev->dev, "Error system address offset of IRQ\n");
return ret;
}
imx_sc_pm_cpu_start(dsp_priv->sc_ipc, IMX_SC_R_DSP, true,
RESET_VECTOR_VADDR);
return 0;
}
static int imx8_run(struct snd_sof_dev *sdev)
{
struct imx8_priv *dsp_priv = sdev->pdata->hw_pdata;
int ret;
ret = imx_sc_misc_set_control(dsp_priv->sc_ipc, IMX_SC_R_DSP,
IMX_SC_C_OFS_SEL, 0);
if (ret < 0) {
dev_err(sdev->dev, "Error system address offset source select\n");
return ret;
}
imx_sc_pm_cpu_start(dsp_priv->sc_ipc, IMX_SC_R_DSP, true,
RESET_VECTOR_VADDR);
return 0;
}
static int imx8_probe(struct snd_sof_dev *sdev)
{
struct platform_device *pdev =
container_of(sdev->dev, struct platform_device, dev);
struct device_node *np = pdev->dev.of_node;
struct device_node *res_node;
struct resource *mmio;
struct imx8_priv *priv;
struct resource res;
u32 base, size;
int ret = 0;
int i;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->clks = devm_kzalloc(&pdev->dev, sizeof(*priv->clks), GFP_KERNEL);
if (!priv->clks)
return -ENOMEM;
sdev->num_cores = 1;
sdev->pdata->hw_pdata = priv;
priv->dev = sdev->dev;
priv->sdev = sdev;
/* power up device associated power domains */
priv->num_domains = of_count_phandle_with_args(np, "power-domains",
"#power-domain-cells");
if (priv->num_domains < 0) {
dev_err(sdev->dev, "no power-domains property in %pOF\n", np);
return priv->num_domains;
}
priv->pd_dev = devm_kmalloc_array(&pdev->dev, priv->num_domains,
sizeof(*priv->pd_dev), GFP_KERNEL);
if (!priv->pd_dev)
return -ENOMEM;
priv->link = devm_kmalloc_array(&pdev->dev, priv->num_domains,
sizeof(*priv->link), GFP_KERNEL);
if (!priv->link)
return -ENOMEM;
for (i = 0; i < priv->num_domains; i++) {
priv->pd_dev[i] = dev_pm_domain_attach_by_id(&pdev->dev, i);
if (IS_ERR(priv->pd_dev[i])) {
ret = PTR_ERR(priv->pd_dev[i]);
goto exit_unroll_pm;
}
priv->link[i] = device_link_add(&pdev->dev, priv->pd_dev[i],
DL_FLAG_STATELESS |
DL_FLAG_PM_RUNTIME |
DL_FLAG_RPM_ACTIVE);
if (!priv->link[i]) {
ret = -ENOMEM;
dev_pm_domain_detach(priv->pd_dev[i], false);
goto exit_unroll_pm;
}
}
ret = imx_scu_get_handle(&priv->sc_ipc);
if (ret) {
dev_err(sdev->dev, "Cannot obtain SCU handle (err = %d)\n",
ret);
goto exit_unroll_pm;
}
priv->ipc_dev = platform_device_register_data(sdev->dev, "imx-dsp",
PLATFORM_DEVID_NONE,
pdev, sizeof(*pdev));
if (IS_ERR(priv->ipc_dev)) {
ret = PTR_ERR(priv->ipc_dev);
goto exit_unroll_pm;
}
priv->dsp_ipc = dev_get_drvdata(&priv->ipc_dev->dev);
if (!priv->dsp_ipc) {
/* DSP IPC driver not probed yet, try later */
ret = -EPROBE_DEFER;
dev_err(sdev->dev, "Failed to get drvdata\n");
goto exit_pdev_unregister;
}
imx_dsp_set_data(priv->dsp_ipc, priv);
priv->dsp_ipc->ops = &dsp_ops;
/* DSP base */
mmio = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (mmio) {
base = mmio->start;
size = resource_size(mmio);
} else {
dev_err(sdev->dev, "error: failed to get DSP base at idx 0\n");
ret = -EINVAL;
goto exit_pdev_unregister;
}
sdev->bar[SOF_FW_BLK_TYPE_IRAM] = devm_ioremap(sdev->dev, base, size);
if (!sdev->bar[SOF_FW_BLK_TYPE_IRAM]) {
dev_err(sdev->dev, "failed to ioremap base 0x%x size 0x%x\n",
base, size);
ret = -ENODEV;
goto exit_pdev_unregister;
}
sdev->mmio_bar = SOF_FW_BLK_TYPE_IRAM;
res_node = of_parse_phandle(np, "memory-region", 0);
if (!res_node) {
dev_err(&pdev->dev, "failed to get memory region node\n");
ret = -ENODEV;
goto exit_pdev_unregister;
}
ret = of_address_to_resource(res_node, 0, &res);
of_node_put(res_node);
if (ret) {
dev_err(&pdev->dev, "failed to get reserved region address\n");
goto exit_pdev_unregister;
}
sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, res.start,
resource_size(&res));
if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) {
dev_err(sdev->dev, "failed to ioremap mem 0x%x size 0x%x\n",
base, size);
ret = -ENOMEM;
goto exit_pdev_unregister;
}
sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM;
/* set default mailbox offset for FW ready message */
sdev->dsp_box.offset = MBOX_OFFSET;
/* init clocks info */
priv->clks->dsp_clks = imx8_dsp_clks;
priv->clks->num_dsp_clks = ARRAY_SIZE(imx8_dsp_clks);
ret = imx8_parse_clocks(sdev, priv->clks);
if (ret < 0)
goto exit_pdev_unregister;
ret = imx8_enable_clocks(sdev, priv->clks);
if (ret < 0)
goto exit_pdev_unregister;
return 0;
exit_pdev_unregister:
platform_device_unregister(priv->ipc_dev);
exit_unroll_pm:
while (--i >= 0) {
device_link_del(priv->link[i]);
dev_pm_domain_detach(priv->pd_dev[i], false);
}
return ret;
}
static int imx8_remove(struct snd_sof_dev *sdev)
{
struct imx8_priv *priv = sdev->pdata->hw_pdata;
int i;
imx8_disable_clocks(sdev, priv->clks);
platform_device_unregister(priv->ipc_dev);
for (i = 0; i < priv->num_domains; i++) {
device_link_del(priv->link[i]);
dev_pm_domain_detach(priv->pd_dev[i], false);
}
return 0;
}
/* on i.MX8 there is 1 to 1 match between type and BAR idx */
static int imx8_get_bar_index(struct snd_sof_dev *sdev, u32 type)
{
/* Only IRAM and SRAM bars are valid */
switch (type) {
case SOF_FW_BLK_TYPE_IRAM:
case SOF_FW_BLK_TYPE_SRAM:
return type;
default:
return -EINVAL;
}
}
static void imx8_suspend(struct snd_sof_dev *sdev)
{
int i;
struct imx8_priv *priv = (struct imx8_priv *)sdev->pdata->hw_pdata;
for (i = 0; i < DSP_MU_CHAN_NUM; i++)
imx_dsp_free_channel(priv->dsp_ipc, i);
imx8_disable_clocks(sdev, priv->clks);
}
static int imx8_resume(struct snd_sof_dev *sdev)
{
struct imx8_priv *priv = (struct imx8_priv *)sdev->pdata->hw_pdata;
int ret;
int i;
ret = imx8_enable_clocks(sdev, priv->clks);
if (ret < 0)
return ret;
for (i = 0; i < DSP_MU_CHAN_NUM; i++)
imx_dsp_request_channel(priv->dsp_ipc, i);
return 0;
}
static int imx8_dsp_runtime_resume(struct snd_sof_dev *sdev)
{
int ret;
const struct sof_dsp_power_state target_dsp_state = {
.state = SOF_DSP_PM_D0,
};
ret = imx8_resume(sdev);
if (ret < 0)
return ret;
return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
}
static int imx8_dsp_runtime_suspend(struct snd_sof_dev *sdev)
{
const struct sof_dsp_power_state target_dsp_state = {
.state = SOF_DSP_PM_D3,
};
imx8_suspend(sdev);
return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
}
static int imx8_dsp_suspend(struct snd_sof_dev *sdev, unsigned int target_state)
{
const struct sof_dsp_power_state target_dsp_state = {
.state = target_state,
};
if (!pm_runtime_suspended(sdev->dev))
imx8_suspend(sdev);
return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
}
static int imx8_dsp_resume(struct snd_sof_dev *sdev)
{
int ret;
const struct sof_dsp_power_state target_dsp_state = {
.state = SOF_DSP_PM_D0,
};
ret = imx8_resume(sdev);
if (ret < 0)
return ret;
if (pm_runtime_suspended(sdev->dev)) {
pm_runtime_disable(sdev->dev);
pm_runtime_set_active(sdev->dev);
pm_runtime_mark_last_busy(sdev->dev);
pm_runtime_enable(sdev->dev);
pm_runtime_idle(sdev->dev);
}
return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
}
static struct snd_soc_dai_driver imx8_dai[] = {
{
.name = "esai0",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "sai1",
.playback = {
.channels_min = 1,
.channels_max = 32,
},
.capture = {
.channels_min = 1,
.channels_max = 32,
},
},
};
static int imx8_dsp_set_power_state(struct snd_sof_dev *sdev,
const struct sof_dsp_power_state *target_state)
{
sdev->dsp_power_state = *target_state;
return 0;
}
/* i.MX8 ops */
static struct snd_sof_dsp_ops sof_imx8_ops = {
/* probe and remove */
.probe = imx8_probe,
.remove = imx8_remove,
/* DSP core boot */
.run = imx8_run,
/* Block IO */
.block_read = sof_block_read,
.block_write = sof_block_write,
/* Mailbox IO */
.mailbox_read = sof_mailbox_read,
.mailbox_write = sof_mailbox_write,
/* ipc */
.send_msg = imx8_send_msg,
.get_mailbox_offset = imx8_get_mailbox_offset,
.get_window_offset = imx8_get_window_offset,
.ipc_msg_data = sof_ipc_msg_data,
.set_stream_data_offset = sof_set_stream_data_offset,
.get_bar_index = imx8_get_bar_index,
/* firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy,
/* Debug information */
.dbg_dump = imx8_dump,
.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
/* stream callbacks */
.pcm_open = sof_stream_pcm_open,
.pcm_close = sof_stream_pcm_close,
/* Firmware ops */
.dsp_arch_ops = &sof_xtensa_arch_ops,
/* DAI drivers */
.drv = imx8_dai,
.num_drv = ARRAY_SIZE(imx8_dai),
/* ALSA HW info flags */
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
/* PM */
.runtime_suspend = imx8_dsp_runtime_suspend,
.runtime_resume = imx8_dsp_runtime_resume,
.suspend = imx8_dsp_suspend,
.resume = imx8_dsp_resume,
.set_power_state = imx8_dsp_set_power_state,
};
/* i.MX8X ops */
static struct snd_sof_dsp_ops sof_imx8x_ops = {
/* probe and remove */
.probe = imx8_probe,
.remove = imx8_remove,
/* DSP core boot */
.run = imx8x_run,
/* Block IO */
.block_read = sof_block_read,
.block_write = sof_block_write,
/* Mailbox IO */
.mailbox_read = sof_mailbox_read,
.mailbox_write = sof_mailbox_write,
/* ipc */
.send_msg = imx8_send_msg,
.get_mailbox_offset = imx8_get_mailbox_offset,
.get_window_offset = imx8_get_window_offset,
.ipc_msg_data = sof_ipc_msg_data,
.set_stream_data_offset = sof_set_stream_data_offset,
.get_bar_index = imx8_get_bar_index,
/* firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy,
/* Debug information */
.dbg_dump = imx8_dump,
.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
/* stream callbacks */
.pcm_open = sof_stream_pcm_open,
.pcm_close = sof_stream_pcm_close,
/* Firmware ops */
.dsp_arch_ops = &sof_xtensa_arch_ops,
/* DAI drivers */
.drv = imx8_dai,
.num_drv = ARRAY_SIZE(imx8_dai),
/* PM */
.runtime_suspend = imx8_dsp_runtime_suspend,
.runtime_resume = imx8_dsp_runtime_resume,
.suspend = imx8_dsp_suspend,
.resume = imx8_dsp_resume,
.set_power_state = imx8_dsp_set_power_state,
/* ALSA HW info flags */
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP
};
static struct sof_dev_desc sof_of_imx8qxp_desc = {
.ipc_supported_mask = BIT(SOF_IPC),
.ipc_default = SOF_IPC,
.default_fw_path = {
[SOF_IPC] = "imx/sof",
},
.default_tplg_path = {
[SOF_IPC] = "imx/sof-tplg",
},
.default_fw_filename = {
[SOF_IPC] = "sof-imx8x.ri",
},
.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
.ops = &sof_imx8x_ops,
};
static struct sof_dev_desc sof_of_imx8qm_desc = {
.ipc_supported_mask = BIT(SOF_IPC),
.ipc_default = SOF_IPC,
.default_fw_path = {
[SOF_IPC] = "imx/sof",
},
.default_tplg_path = {
[SOF_IPC] = "imx/sof-tplg",
},
.default_fw_filename = {
[SOF_IPC] = "sof-imx8.ri",
},
.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
.ops = &sof_imx8_ops,
};
static const struct of_device_id sof_of_imx8_ids[] = {
{ .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
{ .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc},
{ }
};
MODULE_DEVICE_TABLE(of, sof_of_imx8_ids);
/* DT driver definition */
static struct platform_driver snd_sof_of_imx8_driver = {
.probe = sof_of_probe,
.remove = sof_of_remove,
.driver = {
.name = "sof-audio-of-imx8",
.pm = &sof_of_pm,
.of_match_table = sof_of_imx8_ids,
},
};
module_platform_driver(snd_sof_of_imx8_driver);
MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
MODULE_LICENSE("Dual BSD/GPL");
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