mt8186 DSP uses two hardware mailbox IP to communicate with AP.
One mailbox is used for requests coming from AP, and the other
one is for requests from DSP.
Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@xxxxxxxxxxxx>
Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
---
sound/soc/sof/mediatek/Kconfig | 1 +
sound/soc/sof/mediatek/mt8186/mt8186-loader.c | 5 +
sound/soc/sof/mediatek/mt8186/mt8186.c | 141 ++++++++++++++++++
3 files changed, 147 insertions(+)
diff --git a/sound/soc/sof/mediatek/Kconfig b/sound/soc/sof/mediatek/Kconfig
index f1fa15c41891..a149dd1b3f44 100644
--- a/sound/soc/sof/mediatek/Kconfig
+++ b/sound/soc/sof/mediatek/Kconfig
@@ -24,6 +24,7 @@ config SND_SOC_SOF_MTK_COMMON
config SND_SOC_SOF_MT8186
tristate "SOF support for MT8186 audio DSP"
select SND_SOC_SOF_MTK_COMMON
+ depends on MTK_ADSP_IPC
help
This adds support for Sound Open Firmware for Mediatek platforms
using the mt8186 processors.
diff --git a/sound/soc/sof/mediatek/mt8186/mt8186-loader.c b/sound/soc/sof/mediatek/mt8186/mt8186-loader.c
index 548b12c33d8a..946e6c43204f 100644
--- a/sound/soc/sof/mediatek/mt8186/mt8186-loader.c
+++ b/sound/soc/sof/mediatek/mt8186/mt8186-loader.c
@@ -17,6 +17,11 @@ void mt8186_sof_hifixdsp_boot_sequence(struct snd_sof_dev *sdev, u32 boot_addr)
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, ADSP_HIFI_IO_CONFIG,
RUNSTALL, RUNSTALL);
+ /* enable mbox 0 & 1 IRQ */
+ snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, ADSP_MBOX_IRQ_EN,
+ DSP_MBOX0_IRQ_EN | DSP_MBOX1_IRQ_EN,
+ DSP_MBOX0_IRQ_EN | DSP_MBOX1_IRQ_EN);
+
/* set core boot address */
snd_sof_dsp_write(sdev, DSP_SECREG_BAR, ADSP_ALTVEC_C0, boot_addr);
snd_sof_dsp_write(sdev, DSP_SECREG_BAR, ADSP_ALTVECSEL, ADSP_ALTVECSEL_C0);
diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c
index 6d574fd4492e..3333a0634e29 100644
--- a/sound/soc/sof/mediatek/mt8186/mt8186.c
+++ b/sound/soc/sof/mediatek/mt8186/mt8186.c
@@ -27,6 +27,99 @@
#include "mt8186.h"
#include "mt8186-clk.h"
+static int mt8186_get_mailbox_offset(struct snd_sof_dev *sdev)
+{
+ return MBOX_OFFSET;
+}
+
+static int mt8186_get_window_offset(struct snd_sof_dev *sdev, u32 id)
+{
+ return MBOX_OFFSET;
+}
+
+static int mt8186_send_msg(struct snd_sof_dev *sdev,
+ struct snd_sof_ipc_msg *msg)
+{
+ struct adsp_priv *priv = sdev->pdata->hw_pdata;
+
+ sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
+ msg->msg_size);
+
+ return mtk_adsp_ipc_send(priv->dsp_ipc, MTK_ADSP_IPC_REQ, MTK_ADSP_IPC_OP_REQ);
+}
+
+static void mt8186_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 void mt8186_dsp_handle_reply(struct mtk_adsp_ipc *ipc)
+{
+ struct adsp_priv *priv = mtk_adsp_ipc_get_data(ipc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sdev->ipc_lock, flags);
+ mt8186_get_reply(priv->sdev);
+ snd_sof_ipc_reply(priv->sdev, 0);
+ spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags);
+}
+
+static void mt8186_dsp_handle_request(struct mtk_adsp_ipc *ipc)
+{
+ struct adsp_priv *priv = mtk_adsp_ipc_get_data(ipc);
+ u32 p; /* panic code */
+ int ret;
+
+ /* 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);
+
+ /* tell DSP cmd is done */
+ ret = mtk_adsp_ipc_send(priv->dsp_ipc, MTK_ADSP_IPC_RSP, MTK_ADSP_IPC_OP_RSP);
+ if (ret)
+ dev_err(priv->dev, "request send ipc failed");
+ }
+}
+
+static struct mtk_adsp_ipc_ops dsp_ops = {
+ .handle_reply = mt8186_dsp_handle_reply,
+ .handle_request = mt8186_dsp_handle_request,
+};
+
static int platform_parse_resource(struct platform_device *pdev, void *data)
{
struct resource *mmio;
@@ -271,6 +364,9 @@ static int mt8186_dsp_probe(struct snd_sof_dev *sdev)
sdev->mmio_bar = SOF_FW_BLK_TYPE_SRAM;
sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM;
+ /* set default mailbox offset for FW ready message */
+ sdev->dsp_box.offset = mt8186_get_mailbox_offset(sdev);
+
ret = adsp_memory_remap_init(sdev, priv->adsp);
if (ret) {
dev_err(sdev->dev, "adsp_memory_remap_init fail!\n");
@@ -292,11 +388,41 @@ static int mt8186_dsp_probe(struct snd_sof_dev *sdev)
adsp_sram_power_on(sdev);
+ priv->ipc_dev = platform_device_register_data(&pdev->dev, "mtk-adsp-ipc",
+ PLATFORM_DEVID_NONE,
+ pdev, sizeof(*pdev));
+ if (IS_ERR(priv->ipc_dev)) {
+ ret = IS_ERR(priv->ipc_dev);
+ dev_err(sdev->dev, "failed to create mtk-adsp-ipc device\n");
+ goto err_adsp_off;
+ }
+
+ priv->dsp_ipc = dev_get_drvdata(&priv->ipc_dev->dev);
+ if (!priv->dsp_ipc) {
+ ret = -EPROBE_DEFER;
+ dev_err(sdev->dev, "failed to get drvdata\n");
+ goto exit_pdev_unregister;
+ }
+
+ mtk_adsp_ipc_set_data(priv->dsp_ipc, priv);
+ priv->dsp_ipc->ops = &dsp_ops;
+
return 0;
+
+exit_pdev_unregister:
+ platform_device_unregister(priv->ipc_dev);
+err_adsp_off:
+ adsp_sram_power_off(sdev);
+ mt8186_adsp_clock_off(sdev);
+
+ return ret;
}
static int mt8186_dsp_remove(struct snd_sof_dev *sdev)
{
+ struct adsp_priv *priv = sdev->pdata->hw_pdata;
+
+ platform_device_unregister(priv->ipc_dev);
mt8186_sof_hifixdsp_shutdown(sdev);
adsp_sram_power_off(sdev);
mt8186_adsp_clock_off(sdev);
@@ -334,6 +460,14 @@ static int mt8186_get_bar_index(struct snd_sof_dev *sdev, u32 type)
return type;
}
+static int mt8186_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);
+ return 0;
+}
+
/* mt8186 ops */
static struct snd_sof_dsp_ops sof_mt8186_ops = {
/* probe and remove */
@@ -353,6 +487,13 @@ static struct snd_sof_dsp_ops sof_mt8186_ops = {
.write64 = sof_io_write64,
.read64 = sof_io_read64,
+ /* ipc */
+ .send_msg = mt8186_send_msg,
+ .get_mailbox_offset = mt8186_get_mailbox_offset,
+ .get_window_offset = mt8186_get_window_offset,
+ .ipc_msg_data = mt8186_ipc_msg_data,
+ .set_stream_data_offset = sof_set_stream_data_offset,
+
/* misc */
.get_bar_index = mt8186_get_bar_index,
--
2.18.0
