media: amphion: support to decode RealVideo video

amphion decoder add support for the RealVideo video.
RV30 and RV40 are support by amphion decoder.

Signed-off-by: Ming Qian <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/platform/amphion/vdec.c

···
 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
 	},
+	{
+		.pixfmt = V4L2_PIX_FMT_RV30,
+		.mem_planes = 1,
+		.comp_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
+	},
+	{
+		.pixfmt = V4L2_PIX_FMT_RV40,
+		.mem_planes = 1,
+		.comp_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
+	},
 	{0, 0, 0, 0},
 };
 

drivers/media/platform/amphion/vpu_malone.c

···
 #define STREAM_CONFIG_NUM_DBE_SET(x, y)		CONFIG_SET(x, y, 30, 0x40000000)
 #define STREAM_CONFIG_FS_CTRL_MODE_SET(x, y)	CONFIG_SET(x, y, 31, 0x80000000)
 
+#define MALONE_DEC_FMT_RV_MASK			BIT(21)
+
 enum vpu_malone_stream_input_mode {
 	INVALID_MODE = 0,
 	FRAME_LVL,
···
 {
 	struct malone_iface *iface = shared->iface;
 
+	vpu_malone_enable_format(V4L2_PIX_FMT_RV30, iface->fw_version & MALONE_DEC_FMT_RV_MASK);
+	vpu_malone_enable_format(V4L2_PIX_FMT_RV40, iface->fw_version & MALONE_DEC_FMT_RV_MASK);
+
 	return iface->fw_version;
 }
 
···
 	{V4L2_PIX_FMT_JPEG,        MALONE_FMT_JPG},
 	{V4L2_PIX_FMT_VP8,         MALONE_FMT_VP8},
 	{V4L2_PIX_FMT_SPK,         MALONE_FMT_SPK},
+	{V4L2_PIX_FMT_RV30,        MALONE_FMT_RV},
+	{V4L2_PIX_FMT_RV40,        MALONE_FMT_RV},
 };
+
+void vpu_malone_enable_format(u32 pixelformat, int enable)
+{
+	u32 i;
+
+	for (i = 0; i < ARRAY_SIZE(fmt_mappings); i++) {
+		if (pixelformat == fmt_mappings[i].pixelformat) {
+			fmt_mappings[i].is_disabled = enable ? 0 : 1;
+			return;
+		}
+	}
+}
 
 static enum vpu_malone_format vpu_malone_format_remap(u32 pixelformat)
 {
···
 	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_H263,        {0xb1010000, 0x0}},
 	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_VP8,         {0x34010000, 0x0}},
 	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_SPK,         {0x34010000, 0x0}},
+	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_RV30,        {0x34010000, 0x0}},
+	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_RV40,        {0x34010000, 0x0}},
 	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_JPEG,        {0xefff0000, 0x0}},
 	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_H264,        {0x0B010000, 0}},
 	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_H264_MVC,    {0x0B010000, 0}},
···
 	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_H263,        {0xb1010000, 0x0}},
 	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_VP8,         {0x34010000, 0x0}},
 	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_SPK,         {0x34010000, 0x0}},
+	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_RV30,        {0x34010000, 0x0}},
+	{SCODE_PADDING_ABORT,    V4L2_PIX_FMT_RV40,        {0x34010000, 0x0}},
 	{SCODE_PADDING_EOS,      V4L2_PIX_FMT_JPEG,        {0x0, 0x0}},
 	{SCODE_PADDING_BUFFLUSH, V4L2_PIX_FMT_H264,        {0x15010000, 0x0}},
 	{SCODE_PADDING_BUFFLUSH, V4L2_PIX_FMT_H264_MVC,    {0x15010000, 0x0}},

drivers/media/platform/amphion/vpu_malone.h

···
 int vpu_malone_init_instance(struct vpu_shared_addr *shared, u32 instance);
 u32 vpu_malone_get_max_instance_count(struct vpu_shared_addr *shared);
 bool vpu_malone_check_fmt(enum vpu_core_type type, u32 pixelfmt);
+void vpu_malone_enable_format(u32 pixelformat, int enable);
 
 #endif