From: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
Add support for communicating with the SCP firmware, which will be used
by MT8183.
Signed-off-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
Co-developed-by: Alexandre Courbot <acourbot@xxxxxxxxxxxx>
Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxxxx>
[acourbot: refactor, cleanup and split]
---
.../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 3 ++
.../platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 3 ++
.../media/platform/mtk-vcodec/mtk_vcodec_fw.c | 51 +++++++++++++++++++
.../media/platform/mtk-vcodec/mtk_vcodec_fw.h | 2 +
4 files changed, 59 insertions(+)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 2328bb9580be..ffa6f3d0869d 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -234,6 +234,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vpu",
&rproc_phandle)) {
fw_type = VPU;
+ } else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,scp",
+ &rproc_phandle)) {
+ fw_type = SCP;
} else {
mtk_v4l2_err("Could not get vdec IPI device");
return -ENODEV;
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 598d4bb86e35..da680087b655 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -242,6 +242,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vpu",
&rproc_phandle)) {
fw_type = VPU;
+ } else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,scp",
+ &rproc_phandle)) {
+ fw_type = SCP;
} else {
mtk_v4l2_err("Could not get vdec IPI device");
return -ENODEV;
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.c
index 49dbd623b448..97282b35bcc2 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.c
@@ -63,6 +63,48 @@ static const struct mtk_vcodec_fw_ops mtk_vcodec_vpu_msg = {
.ipi_send = mtk_vcodec_vpu_ipi_send,
};
+static int mtk_vcodec_scp_load_firmware(struct mtk_vcodec_fw *fw)
+{
+ return rproc_boot(fw->rproc);
+}
+
+static unsigned int mtk_vcodec_scp_get_vdec_capa(struct mtk_vcodec_fw *fw)
+{
+ return scp_get_vdec_hw_capa(fw->pdev);
+}
+
+static unsigned int mtk_vcodec_scp_get_venc_capa(struct mtk_vcodec_fw *fw)
+{
+ return scp_get_venc_hw_capa(fw->pdev);
+}
+
+static void *mtk_vcodec_vpu_scp_dm_addr(struct mtk_vcodec_fw *fw,
+ u32 dtcm_dmem_addr)
+{
+ return scp_mapping_dm_addr(fw->pdev, dtcm_dmem_addr);
+}
+
+static int mtk_vcodec_scp_set_ipi_register(struct mtk_vcodec_fw *fw, int id,
+ mtk_vcodec_ipi_handler handler, const char *name, void *priv)
+{
+ return scp_ipi_register(fw->pdev, id, handler, priv);
+}
+
+static int mtk_vcodec_scp_ipi_send(struct mtk_vcodec_fw *fw, int id, void *buf,
+ unsigned int len, unsigned int wait)
+{
+ return scp_ipi_send(fw->pdev, id, buf, len, wait);
+}
+
+static const struct mtk_vcodec_fw_ops mtk_vcodec_rproc_msg = {
+ .load_firmware = mtk_vcodec_scp_load_firmware,
+ .get_vdec_capa = mtk_vcodec_scp_get_vdec_capa,
+ .get_venc_capa = mtk_vcodec_scp_get_venc_capa,
+ .map_dm_addr = mtk_vcodec_vpu_scp_dm_addr,
+ .ipi_register = mtk_vcodec_scp_set_ipi_register,
+ .ipi_send = mtk_vcodec_scp_ipi_send,
+};
+
static void mtk_vcodec_reset_handler(void *priv)
{
struct mtk_vcodec_dev *dev = priv;
@@ -96,6 +138,15 @@ struct mtk_vcodec_fw *mtk_vcodec_fw_select(struct mtk_vcodec_dev *dev,
vpu_wdt_reg_handler(fw_pdev, mtk_vcodec_reset_handler,
dev, rst_id);
break;
+ case SCP:
+ ops = &mtk_vcodec_rproc_msg;
+ fw_pdev = scp_get_pdev(dev->plat_dev);
+ rproc = rproc_get_by_phandle(rproc_phandle);
+ if (!rproc) {
+ mtk_v4l2_err("could not get vdec rproc handle");
+ return ERR_PTR(-EPROBE_DEFER);
+ }
+ break;
default:
mtk_v4l2_err("invalid vcodec fw type");
return ERR_PTR(-EINVAL);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.h
index a6edb3858e6e..c2c22c7ce05f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.h
@@ -6,11 +6,13 @@
#include <linux/remoteproc.h>
#include "../mtk-vpu/mtk_vpu.h"
+#include <linux/platform_data/mtk_scp.h>
struct mtk_vcodec_dev;
enum mtk_vcodec_fw_type {
VPU,
+ SCP,
};
struct mtk_vcodec_fw;
--
2.22.0.rc1.257.g3120a18244-goog
