From: Allen-KH Cheng <Allen-KH.Cheng@xxxxxxxxxxxx>
This patch adds mt8195 IPC support by using mailbox.
On mt8195 resource, there are two mboxes used to handle ipc request
and reply. We create a mtk-adsp-ipc client device to request mbox
controllers.
Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@xxxxxxxxxxxx>
---
sound/soc/sof/mediatek/Kconfig | 1 +
sound/soc/sof/mediatek/adsp_helper.h | 12 +--
sound/soc/sof/mediatek/mt8195/mt8195.c | 138 ++++++++++++++++++++++++-
3 files changed, 140 insertions(+), 11 deletions(-)
diff --git a/sound/soc/sof/mediatek/Kconfig b/sound/soc/sof/mediatek/Kconfig
index f79e76a6f3c6..c3c99a248302 100644
--- a/sound/soc/sof/mediatek/Kconfig
+++ b/sound/soc/sof/mediatek/Kconfig
@@ -17,6 +17,7 @@ config SND_SOC_SOF_MTK_COMMON
select SND_SOC_SOF
select SND_SOC_SOF_XTENSA
select SND_SOC_SOF_COMPRESS
+ depends on MTK_ADSP_IPC
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
diff --git a/sound/soc/sof/mediatek/adsp_helper.h b/sound/soc/sof/mediatek/adsp_helper.h
index f269a2b6c26a..4ab998756bbc 100644
--- a/sound/soc/sof/mediatek/adsp_helper.h
+++ b/sound/soc/sof/mediatek/adsp_helper.h
@@ -7,24 +7,22 @@
#ifndef __MTK_ADSP_HELPER_H__
#define __MTK_ADSP_HELPER_H__
+#include <linux/firmware/mediatek/mtk-adsp-ipc.h>
+
/*
* Global important adsp data structure.
*/
-#define DSP_MBOX_NUM 3
-
struct mtk_adsp_chip_info {
phys_addr_t pa_sram;
phys_addr_t pa_dram; /* adsp dram physical base */
phys_addr_t pa_shared_dram; /* adsp dram physical base */
phys_addr_t pa_cfgreg;
- phys_addr_t pa_mboxreg[DSP_MBOX_NUM];
u32 sramsize;
u32 dramsize;
u32 cfgregsize;
void __iomem *va_sram; /* corresponding to pa_sram */
void __iomem *va_dram; /* corresponding to pa_dram */
void __iomem *va_cfgreg;
- void __iomem *va_mboxreg[DSP_MBOX_NUM];
void __iomem *shared_sram; /* part of va_sram */
void __iomem *shared_dram; /* part of va_dram */
phys_addr_t adsp_bootup_addr;
@@ -42,10 +40,8 @@ struct mtk_adsp_chip_info {
struct adsp_priv {
struct device *dev;
struct snd_sof_dev *sdev;
-
- /* DSP IPC handler */
- struct mbox_controller *adsp_mbox;
-
+ struct mtk_adsp_ipc *dsp_ipc;
+ struct platform_device *ipc_dev;
struct mtk_adsp_chip_info *adsp;
struct clk **clk;
u32 (*ap2adsp_addr)(u32 addr, void *data);
diff --git a/sound/soc/sof/mediatek/mt8195/mt8195.c b/sound/soc/sof/mediatek/mt8195/mt8195.c
index ba13e4540f7a..f4b24afb6f75 100644
--- a/sound/soc/sof/mediatek/mt8195/mt8195.c
+++ b/sound/soc/sof/mediatek/mt8195/mt8195.c
@@ -12,6 +12,7 @@
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/io.h>
+#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
@@ -27,6 +28,99 @@
#include "mt8195.h"
#include "mt8195-clk.h"
+static int mt8195_get_mailbox_offset(struct snd_sof_dev *sdev)
+{
+ return MBOX_OFFSET;
+}
+
+static int mt8195_get_window_offset(struct snd_sof_dev *sdev, u32 id)
+{
+ return MBOX_OFFSET;
+}
+
+static int mt8195_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 mt8195_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 mt8195_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);
+ mt8195_get_reply(priv->sdev);
+ snd_sof_ipc_reply(priv->sdev, 0);
+ spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags);
+}
+
+static void mt8195_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 = mt8195_dsp_handle_reply,
+ .handle_request = mt8195_dsp_handle_request,
+};
+
static int platform_parse_resource(struct platform_device *pdev, void *data)
{
struct resource *mmio;
@@ -285,15 +379,36 @@ static int mt8195_dsp_probe(struct snd_sof_dev *sdev)
}
sdev->bar[DSP_REG_BAR] = priv->adsp->va_cfgreg;
- sdev->bar[DSP_MBOX0_BAR] = priv->adsp->va_mboxreg[0];
- sdev->bar[DSP_MBOX1_BAR] = priv->adsp->va_mboxreg[1];
- sdev->bar[DSP_MBOX2_BAR] = priv->adsp->va_mboxreg[2];
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 = mt8195_get_mailbox_offset(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 = PTR_ERR(priv->ipc_dev);
+ dev_err(sdev->dev, "failed to register mtk-adsp-ipc device\n");
+ goto err_adsp_sram_power_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_sram_power_off:
adsp_sram_power_on(&pdev->dev, false);
exit_clk_disable:
@@ -310,7 +425,9 @@ static int mt8195_dsp_shutdown(struct snd_sof_dev *sdev)
static int mt8195_dsp_remove(struct snd_sof_dev *sdev)
{
struct platform_device *pdev = container_of(sdev->dev, struct platform_device, dev);
+ struct adsp_priv *priv = sdev->pdata->hw_pdata;
+ platform_device_unregister(priv->ipc_dev);
adsp_sram_power_on(&pdev->dev, false);
adsp_clock_off(sdev);
@@ -361,6 +478,14 @@ static int mt8195_get_bar_index(struct snd_sof_dev *sdev, u32 type)
return type;
}
+static int mt8195_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;
+}
+
static struct snd_soc_dai_driver mt8195_dai[] = {
{
.name = "SOF_DL2",
@@ -412,6 +537,13 @@ static struct snd_sof_dsp_ops sof_mt8195_ops = {
.write64 = sof_io_write64,
.read64 = sof_io_read64,
+ /* ipc */
+ .send_msg = mt8195_send_msg,
+ .get_mailbox_offset = mt8195_get_mailbox_offset,
+ .get_window_offset = mt8195_get_window_offset,
+ .ipc_msg_data = mt8195_ipc_msg_data,
+ .set_stream_data_offset = sof_set_stream_data_offset,
+
/* misc */
.get_bar_index = mt8195_get_bar_index,
--
2.18.0
