[media] coda: Add encoder/decoder support for CODA960

This patch adds support for the CODA960 VPU in Freescale i.MX6 SoCs.

It enables h.264 and MPEG4 encoding and decoding support. Besides the usual
register shifting, the CODA960 gains frame memory control and GDI registers
that are set up for linear mapping right now, needs ENC_PIC_SRC_INDEX to be
set beyond the number of internal buffers for some reason, and has subsampling
buffers that need to be set up. Also, the work buffer size is increased to
80 KiB.

The CODA960 firmware spins if there is not enough input data in the bitstream
buffer. To make it continue, buffers need to be copied into the bitstream as
soon as they are queued. As the bitstream fifo is written into from two places,
it must be protected with a mutex. For that, using a threaded interrupt handler
is necessary.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/coda.h

@@ -27,6 +27,14 @@
 #define CODA_REG_BIT_CODE_RESET		0x014
 #define		CODA_REG_RESET_ENABLE		(1 << 0)
 #define CODA_REG_BIT_CUR_PC			0x018
+#define CODA9_REG_BIT_SW_RESET			0x024
+#define		CODA9_SW_RESET_BPU_CORE   0x008
+#define		CODA9_SW_RESET_BPU_BUS    0x010
+#define		CODA9_SW_RESET_VCE_CORE   0x020
+#define		CODA9_SW_RESET_VCE_BUS    0x040
+#define		CODA9_SW_RESET_GDI_CORE   0x080
+#define		CODA9_SW_RESET_GDI_BUS    0x100
+#define CODA9_REG_BIT_SW_RESET_STATUS		0x034
 
 /* Static SW registers */
 #define CODA_REG_BIT_CODE_BUF_ADDR		0x100
@@ -39,9 +47,11 @@
 #define		CODADX6_STREAM_BUF_PIC_FLUSH	(1 << 2)
 #define		CODA7_STREAM_BUF_DYNALLOC_EN	(1 << 5)
 #define		CODADX6_STREAM_BUF_DYNALLOC_EN	(1 << 4)
-#define 	CODA_STREAM_CHKDIS_OFFSET	(1 << 1)
+#define		CODADX6_STREAM_CHKDIS_OFFSET	(1 << 1)
+#define		CODA7_STREAM_SEL_64BITS_ENDIAN	(1 << 1)
 #define		CODA_STREAM_ENDIAN_SELECT	(1 << 0)
 #define CODA_REG_BIT_FRAME_MEM_CTRL		0x110
+#define		CODA_FRAME_CHROMA_INTERLEAVE	(1 << 2)
 #define		CODA_IMAGE_ENDIAN_SELECT	(1 << 0)
 #define CODA_REG_BIT_BIT_STREAM_PARAM		0x114
 #define		CODA_BIT_STREAM_END_FLAG	(1 << 2)
@@ -52,13 +62,21 @@
 #define CODA_REG_BIT_FRM_DIS_FLG(x)		(0x150 + 4 * (x))
 #define CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR	0x140
 #define CODA7_REG_BIT_AXI_SRAM_USE		0x140
+#define		CODA9_USE_HOST_BTP_ENABLE	(1 << 13)
+#define		CODA9_USE_HOST_OVL_ENABLE	(1 << 12)
 #define		CODA7_USE_HOST_ME_ENABLE	(1 << 11)
+#define		CODA9_USE_HOST_DBK_ENABLE	(3 << 10)
 #define		CODA7_USE_HOST_OVL_ENABLE	(1 << 10)
 #define		CODA7_USE_HOST_DBK_ENABLE	(1 << 9)
+#define		CODA9_USE_HOST_IP_ENABLE	(1 << 9)
 #define		CODA7_USE_HOST_IP_ENABLE	(1 << 8)
+#define		CODA9_USE_HOST_BIT_ENABLE	(1 << 8)
 #define		CODA7_USE_HOST_BIT_ENABLE	(1 << 7)
+#define		CODA9_USE_BTP_ENABLE		(1 << 5)
 #define		CODA7_USE_ME_ENABLE		(1 << 4)
+#define		CODA9_USE_OVL_ENABLE		(1 << 4)
 #define		CODA7_USE_OVL_ENABLE		(1 << 3)
+#define		CODA9_USE_DBK_ENABLE		(3 << 2)
 #define		CODA7_USE_DBK_ENABLE		(1 << 2)
 #define		CODA7_USE_IP_ENABLE		(1 << 1)
 #define		CODA7_USE_BIT_ENABLE		(1 << 0)
@@ -93,6 +111,18 @@
 #define		CODA7_MODE_ENCODE_H264		8
 #define		CODA7_MODE_ENCODE_MP4		11
 #define		CODA7_MODE_ENCODE_MJPG		13
+#define		CODA9_MODE_DECODE_H264		0
+#define		CODA9_MODE_DECODE_VC1		1
+#define		CODA9_MODE_DECODE_MP2		2
+#define		CODA9_MODE_DECODE_MP4		3
+#define		CODA9_MODE_DECODE_DV3		3
+#define		CODA9_MODE_DECODE_RV		4
+#define		CODA9_MODE_DECODE_AVS		5
+#define		CODA9_MODE_DECODE_MJPG		6
+#define		CODA9_MODE_DECODE_VPX		7
+#define		CODA9_MODE_ENCODE_H264		8
+#define		CODA9_MODE_ENCODE_MP4		11
+#define		CODA9_MODE_ENCODE_MJPG		13
 #define 	CODA_MODE_INVALID		0xffff
 #define CODA_REG_BIT_INT_ENABLE		0x170
 #define		CODA_INT_INTERRUPT_ENABLE	(1 << 3)
@@ -129,6 +159,7 @@
 #define CODA_CMD_DEC_SEQ_SPP_CHUNK_SIZE		0x1a0
 
 #define CODA7_RET_DEC_SEQ_ASPECT		0x1b0
+#define CODA9_RET_DEC_SEQ_BITRATE		0x1b4
 #define CODA_RET_DEC_SEQ_SUCCESS		0x1c0
 #define CODA_RET_DEC_SEQ_SRC_FMT		0x1c4 /* SRC_SIZE on CODA7 */
 #define CODA_RET_DEC_SEQ_SRC_SIZE		0x1c4
@@ -145,13 +176,19 @@
 #define CODA_RET_DEC_SEQ_FRATE_DR		0x1e8
 #define CODA_RET_DEC_SEQ_JPG_PARA		0x1e4
 #define CODA_RET_DEC_SEQ_JPG_THUMB_IND		0x1e8
+#define CODA9_RET_DEC_SEQ_HEADER_REPORT		0x1ec
 
 /* Decoder Picture Run */
 #define CODA_CMD_DEC_PIC_ROT_MODE		0x180
 #define CODA_CMD_DEC_PIC_ROT_ADDR_Y		0x184
+#define CODA9_CMD_DEC_PIC_ROT_INDEX		0x184
 #define CODA_CMD_DEC_PIC_ROT_ADDR_CB		0x188
+#define CODA9_CMD_DEC_PIC_ROT_ADDR_Y		0x188
 #define CODA_CMD_DEC_PIC_ROT_ADDR_CR		0x18c
+#define CODA9_CMD_DEC_PIC_ROT_ADDR_CB		0x18c
 #define CODA_CMD_DEC_PIC_ROT_STRIDE		0x190
+#define CODA9_CMD_DEC_PIC_ROT_ADDR_CR		0x190
+#define CODA9_CMD_DEC_PIC_ROT_STRIDE		0x1b8
 
 #define CODA_CMD_DEC_PIC_OPTION			0x194
 #define		CODA_PRE_SCAN_EN			(1 << 0)
@@ -183,25 +220,39 @@
 #define CODA_RET_DEC_PIC_CROP_TOP_BOTTOM	0x1e4
 #define CODA_RET_DEC_PIC_FRAME_NEED		0x1ec
 
+#define CODA9_RET_DEC_PIC_VP8_PIC_REPORT	0x1e8
+#define CODA9_RET_DEC_PIC_ASPECT		0x1f0
+#define CODA9_RET_DEC_PIC_VP8_SCALE_INFO	0x1f0
+#define CODA9_RET_DEC_PIC_FRATE_NR		0x1f4
+#define CODA9_RET_DEC_PIC_FRATE_DR		0x1f8
+
 /* Encoder Sequence Initialization */
 #define CODA_CMD_ENC_SEQ_BB_START				0x180
 #define CODA_CMD_ENC_SEQ_BB_SIZE				0x184
 #define CODA_CMD_ENC_SEQ_OPTION				0x188
 #define		CODA7_OPTION_AVCINTRA16X16ONLY_OFFSET		9
+#define		CODA9_OPTION_MVC_PREFIX_NAL_OFFSET		9
 #define		CODA7_OPTION_GAMMA_OFFSET			8
+#define		CODA9_OPTION_MVC_PARASET_REFRESH_OFFSET		8
 #define		CODA7_OPTION_RCQPMAX_OFFSET			7
+#define		CODA9_OPTION_GAMMA_OFFSET			7
 #define		CODADX6_OPTION_GAMMA_OFFSET			7
 #define		CODA7_OPTION_RCQPMIN_OFFSET			6
+#define		CODA9_OPTION_RCQPMAX_OFFSET			6
 #define		CODA_OPTION_LIMITQP_OFFSET			6
 #define		CODA_OPTION_RCINTRAQP_OFFSET			5
 #define		CODA_OPTION_FMO_OFFSET				4
+#define		CODA9_OPTION_MVC_INTERVIEW_OFFSET		4
 #define		CODA_OPTION_AVC_AUD_OFFSET			2
 #define		CODA_OPTION_SLICEREPORT_OFFSET			1
 #define CODA_CMD_ENC_SEQ_COD_STD				0x18c
 #define		CODA_STD_MPEG4					0
+#define		CODA9_STD_H264					0
 #define		CODA_STD_H263					1
 #define		CODA_STD_H264					2
 #define		CODA_STD_MJPG					3
+#define		CODA9_STD_MPEG4					3
+
 #define CODA_CMD_ENC_SEQ_SRC_SIZE				0x190
 #define		CODA7_PICWIDTH_OFFSET				16
 #define		CODA7_PICWIDTH_MASK				0xffff
@@ -268,15 +319,26 @@
 #define CODA7_CMD_ENC_SEQ_SEARCH_BASE				0x1b8
 #define CODA7_CMD_ENC_SEQ_SEARCH_SIZE				0x1bc
 #define CODA7_CMD_ENC_SEQ_INTRA_QP				0x1c4
-#define CODA_CMD_ENC_SEQ_RC_QP_MAX				0x1c8
+#define CODA_CMD_ENC_SEQ_RC_QP_MIN_MAX				0x1c8
+#define		CODA_QPMIN_OFFSET				8
+#define		CODA_QPMIN_MASK					0x3f
 #define		CODA_QPMAX_OFFSET				0
 #define		CODA_QPMAX_MASK					0x3f
 #define CODA_CMD_ENC_SEQ_RC_GAMMA				0x1cc
 #define		CODA_GAMMA_OFFSET				0
 #define		CODA_GAMMA_MASK					0xffff
+#define CODA_CMD_ENC_SEQ_RC_INTERVAL_MODE			0x1d0
+#define CODA9_CMD_ENC_SEQ_INTRA_WEIGHT				0x1d4
+#define CODA9_CMD_ENC_SEQ_ME_OPTION				0x1d8
 #define CODA_RET_ENC_SEQ_SUCCESS				0x1c0
 
 /* Encoder Picture Run */
+#define CODA9_CMD_ENC_PIC_SRC_INDEX		0x180
+#define CODA9_CMD_ENC_PIC_SRC_STRIDE		0x184
+#define CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC	0x1a4
+#define CODA9_CMD_ENC_PIC_SRC_ADDR_Y		0x1a8
+#define CODA9_CMD_ENC_PIC_SRC_ADDR_CB		0x1ac
+#define CODA9_CMD_ENC_PIC_SRC_ADDR_CR		0x1b0
 #define CODA_CMD_ENC_PIC_SRC_ADDR_Y	0x180
 #define CODA_CMD_ENC_PIC_SRC_ADDR_CB	0x184
 #define CODA_CMD_ENC_PIC_SRC_ADDR_CR	0x188
@@ -291,7 +353,11 @@
 #define		CODA_MIR_VER					(0x1 << 2)
 #define		CODA_MIR_HOR					(0x2 << 2)
 #define		CODA_MIR_VER_HOR				(0x3 << 2)
-#define CODA_CMD_ENC_PIC_OPTION	0x194
+#define CODA_CMD_ENC_PIC_OPTION		0x194
+#define		CODA_FORCE_IPICTURE				BIT(1)
+#define		CODA_REPORT_MB_INFO				BIT(3)
+#define		CODA_REPORT_MV_INFO				BIT(4)
+#define		CODA_REPORT_SLICE_INFO				BIT(5)
 #define CODA_CMD_ENC_PIC_BB_START	0x198
 #define CODA_CMD_ENC_PIC_BB_SIZE	0x19c
 #define CODA_RET_ENC_FRAME_NUM		0x1c0
@@ -306,13 +372,30 @@
 #define CODA_CMD_SET_FRAME_BUF_STRIDE		0x184
 #define CODA_CMD_SET_FRAME_SLICE_BB_START	0x188
 #define CODA_CMD_SET_FRAME_SLICE_BB_SIZE	0x18c
+#define CODA9_CMD_SET_FRAME_SUBSAMP_A		0x188
+#define CODA9_CMD_SET_FRAME_SUBSAMP_B		0x18c
 #define CODA7_CMD_SET_FRAME_AXI_BIT_ADDR	0x190
 #define CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR	0x194
 #define CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR	0x198
 #define CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR	0x19c
 #define CODA7_CMD_SET_FRAME_AXI_OVL_ADDR	0x1a0
 #define CODA7_CMD_SET_FRAME_MAX_DEC_SIZE	0x1a4
+#define CODA9_CMD_SET_FRAME_AXI_BTP_ADDR	0x1a4
 #define CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE	0x1a8
+#define CODA9_CMD_SET_FRAME_CACHE_SIZE		0x1a8
+#define CODA9_CMD_SET_FRAME_CACHE_CONFIG	0x1ac
+#define		CODA9_CACHE_BYPASS_OFFSET		28
+#define		CODA9_CACHE_DUALCONF_OFFSET		26
+#define		CODA9_CACHE_PAGEMERGE_OFFSET		24
+#define		CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET	16
+#define		CODA9_CACHE_CB_BUFFER_SIZE_OFFSET	8
+#define		CODA9_CACHE_CR_BUFFER_SIZE_OFFSET	0
+#define CODA9_CMD_SET_FRAME_SUBSAMP_A_MVC	0x1b0
+#define CODA9_CMD_SET_FRAME_SUBSAMP_B_MVC	0x1b4
+#define CODA9_CMD_SET_FRAME_DP_BUF_BASE		0x1b0
+#define CODA9_CMD_SET_FRAME_DP_BUF_SIZE		0x1b4
+#define CODA9_CMD_SET_FRAME_MAX_DEC_SIZE	0x1b8
+#define CODA9_CMD_SET_FRAME_DELAY		0x1bc
 
 /* Encoder Header */
 #define CODA_CMD_ENC_HEADER_CODE	0x180
@@ -322,8 +405,11 @@
 #define		CODA_HEADER_MP4V_VOL	0
 #define		CODA_HEADER_MP4V_VOS	1
 #define		CODA_HEADER_MP4V_VIS	2
+#define		CODA9_HEADER_FRAME_CROP	(1 << 3)
 #define CODA_CMD_ENC_HEADER_BB_START	0x184
 #define CODA_CMD_ENC_HEADER_BB_SIZE	0x188
+#define CODA9_CMD_ENC_HEADER_FRAME_CROP_H	0x18c
+#define CODA9_CMD_ENC_HEADER_FRAME_CROP_V	0x190
 
 /* Get Version */
 #define CODA_CMD_FIRMWARE_VERNUM		0x1c0
@@ -334,5 +420,28 @@
 #define		CODA_FIRMWARE_VERNUM(product, major, minor, release)	\
 			((product) << 16 | ((major) << 12) |		\
 			((minor) << 8) | (release))
+#define CODA9_CMD_FIRMWARE_CODE_REV		0x1c4
+
+#define CODA9_GDMA_BASE				0x1000
+#define CODA9_GDI_WPROT_ERR_CLR			(CODA9_GDMA_BASE + 0x0a0)
+#define CODA9_GDI_WPROT_RGN_EN			(CODA9_GDMA_BASE + 0x0ac)
+
+#define CODA9_GDI_BUS_CTRL			(CODA9_GDMA_BASE + 0x0f0)
+#define CODA9_GDI_BUS_STATUS			(CODA9_GDMA_BASE + 0x0f4)
+
+#define CODA9_GDI_XY2_CAS_0			(CODA9_GDMA_BASE + 0x800)
+#define CODA9_GDI_XY2_CAS_F			(CODA9_GDMA_BASE + 0x83c)
+
+#define CODA9_GDI_XY2_BA_0			(CODA9_GDMA_BASE + 0x840)
+#define CODA9_GDI_XY2_BA_1			(CODA9_GDMA_BASE + 0x844)
+#define CODA9_GDI_XY2_BA_2			(CODA9_GDMA_BASE + 0x848)
+#define CODA9_GDI_XY2_BA_3			(CODA9_GDMA_BASE + 0x84c)
+
+#define CODA9_GDI_XY2_RAS_0			(CODA9_GDMA_BASE + 0x850)
+#define CODA9_GDI_XY2_RAS_F			(CODA9_GDMA_BASE + 0x88c)
+
+#define CODA9_GDI_XY2_RBC_CONFIG		(CODA9_GDMA_BASE + 0x890)
+#define CODA9_GDI_RBC2_AXI_0			(CODA9_GDMA_BASE + 0x8a0)
+#define CODA9_GDI_RBC2_AXI_1F			(CODA9_GDMA_BASE + 0x91c)
 
 #endif