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Diffstat (limited to 'sound/soc/sof/imx/imx8m.c')
-rw-r--r--sound/soc/sof/imx/imx8m.c292
1 files changed, 0 insertions, 292 deletions
diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c
deleted file mode 100644
index 86320941fcee..000000000000
--- a/sound/soc/sof/imx/imx8m.c
+++ /dev/null
@@ -1,292 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
-//
-// Copyright 2020 NXP
-//
-// Author: Daniel Baluta <daniel.baluta@nxp.com>
-//
-// Hardware interface for audio DSP on i.MX8M
-
-#include <linux/firmware.h>
-#include <linux/of_platform.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#include <linux/module.h>
-#include <sound/sof.h>
-#include <sound/sof/xtensa.h>
-#include <linux/firmware/imx/dsp.h>
-
-#include "../ops.h"
-
-#define MBOX_OFFSET 0x800000
-#define MBOX_SIZE 0x1000
-
-struct imx8m_priv {
- struct device *dev;
- struct snd_sof_dev *sdev;
-
- /* DSP IPC handler */
- struct imx_dsp_ipc *dsp_ipc;
- struct platform_device *ipc_dev;
-};
-
-static void imx8m_get_reply(struct snd_sof_dev *sdev)
-{
- struct snd_sof_ipc_msg *msg = sdev->msg;
- struct sof_ipc_reply reply;
- int ret = 0;
-
- if (!msg) {
- dev_warn(sdev->dev, "unexpected ipc interrupt\n");
- return;
- }
-
- /* get reply */
- sof_mailbox_read(sdev, sdev->host_box.offset, &reply, sizeof(reply));
-
- if (reply.error < 0) {
- memcpy(msg->reply_data, &reply, sizeof(reply));
- ret = reply.error;
- } else {
- /* reply has correct size? */
- if (reply.hdr.size != msg->reply_size) {
- dev_err(sdev->dev, "error: reply expected %zu got %u bytes\n",
- msg->reply_size, reply.hdr.size);
- ret = -EINVAL;
- }
-
- /* read the message */
- if (msg->reply_size > 0)
- sof_mailbox_read(sdev, sdev->host_box.offset,
- msg->reply_data, msg->reply_size);
- }
-
- msg->reply_error = ret;
-}
-
-static int imx8m_get_mailbox_offset(struct snd_sof_dev *sdev)
-{
- return MBOX_OFFSET;
-}
-
-static int imx8m_get_window_offset(struct snd_sof_dev *sdev, u32 id)
-{
- return MBOX_OFFSET;
-}
-
-static void imx8m_dsp_handle_reply(struct imx_dsp_ipc *ipc)
-{
- struct imx8m_priv *priv = imx_dsp_get_data(ipc);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sdev->ipc_lock, flags);
- imx8m_get_reply(priv->sdev);
- snd_sof_ipc_reply(priv->sdev, 0);
- spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags);
-}
-
-static void imx8m_dsp_handle_request(struct imx_dsp_ipc *ipc)
-{
- struct imx8m_priv *priv = imx_dsp_get_data(ipc);
-
- snd_sof_ipc_msgs_rx(priv->sdev);
-}
-
-static struct imx_dsp_ops imx8m_dsp_ops = {
- .handle_reply = imx8m_dsp_handle_reply,
- .handle_request = imx8m_dsp_handle_request,
-};
-
-static int imx8m_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
-{
- struct imx8m_priv *priv = (struct imx8m_priv *)sdev->private;
-
- 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 imx8m_run(struct snd_sof_dev *sdev)
-{
- /* TODO: start DSP using Audio MIX bits */
- return 0;
-}
-
-static int imx8m_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 imx8m_priv *priv;
- struct resource res;
- u32 base, size;
- int ret = 0;
-
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- sdev->private = priv;
- priv->dev = sdev->dev;
- priv->sdev = sdev;
-
- priv->ipc_dev = platform_device_register_data(sdev->dev, "imx-dsp",
- PLATFORM_DEVID_NONE,
- pdev, sizeof(*pdev));
- if (IS_ERR(priv->ipc_dev))
- return PTR_ERR(priv->ipc_dev);
-
- 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 = &imx8m_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);
- 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;
-
- return 0;
-
-exit_pdev_unregister:
- platform_device_unregister(priv->ipc_dev);
- return ret;
-}
-
-static int imx8m_remove(struct snd_sof_dev *sdev)
-{
- struct imx8m_priv *priv = (struct imx8m_priv *)sdev->private;
-
- platform_device_unregister(priv->ipc_dev);
-
- return 0;
-}
-
-/* on i.MX8 there is 1 to 1 match between type and BAR idx */
-static int imx8m_get_bar_index(struct snd_sof_dev *sdev, u32 type)
-{
- return type;
-}
-
-static void imx8m_ipc_msg_data(struct snd_sof_dev *sdev,
- struct snd_pcm_substream *substream,
- void *p, size_t sz)
-{
- sof_mailbox_read(sdev, sdev->dsp_box.offset, p, sz);
-}
-
-static int imx8m_ipc_pcm_params(struct snd_sof_dev *sdev,
- struct snd_pcm_substream *substream,
- const struct sof_ipc_pcm_params_reply *reply)
-{
- return 0;
-}
-
-static struct snd_soc_dai_driver imx8m_dai[] = {
-{
- .name = "sai3",
- .playback = {
- .channels_min = 1,
- .channels_max = 32,
- },
- .capture = {
- .channels_min = 1,
- .channels_max = 32,
- },
-},
-};
-
-/* i.MX8 ops */
-struct snd_sof_dsp_ops sof_imx8m_ops = {
- /* probe and remove */
- .probe = imx8m_probe,
- .remove = imx8m_remove,
- /* DSP core boot */
- .run = imx8m_run,
-
- /* Block IO */
- .block_read = sof_block_read,
- .block_write = sof_block_write,
-
- /* ipc */
- .send_msg = imx8m_send_msg,
- .fw_ready = sof_fw_ready,
- .get_mailbox_offset = imx8m_get_mailbox_offset,
- .get_window_offset = imx8m_get_window_offset,
-
- .ipc_msg_data = imx8m_ipc_msg_data,
- .ipc_pcm_params = imx8m_ipc_pcm_params,
-
- /* module loading */
- .load_module = snd_sof_parse_module_memcpy,
- .get_bar_index = imx8m_get_bar_index,
- /* firmware loading */
- .load_firmware = snd_sof_load_firmware_memcpy,
-
- /* DAI drivers */
- .drv = imx8m_dai,
- .num_drv = ARRAY_SIZE(imx8m_dai),
-
- .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,
-};
-EXPORT_SYMBOL(sof_imx8m_ops);
-
-MODULE_LICENSE("Dual BSD/GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.