[media] s5p-mfc: Update MFCv5 driver for callback based architecture

Modifies the driver to use a callback based architecture
for hardware dependent calls. This architecture is suitable
for supporting co-existence with newer versions of MFC hardware.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 91 insertions, 61 deletions

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 74bb2848284..d711b0f7420 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -22,13 +22,14 @@
 #include <media/v4l2-event.h>
 #include <linux/workqueue.h>
 #include <media/videobuf2-core.h>
-#include "regs-mfc.h"
+#include "s5p_mfc_common.h"
 #include "s5p_mfc_ctrl.h"
 #include "s5p_mfc_debug.h"
 #include "s5p_mfc_dec.h"
 #include "s5p_mfc_enc.h"
 #include "s5p_mfc_intr.h"
-#include "s5p_mfc_opr_v5.h"
+#include "s5p_mfc_opr.h"
+#include "s5p_mfc_cmd.h"
 #include "s5p_mfc_pm.h"
 
 #define S5P_MFC_NAME		"s5p-mfc"
@@ -148,10 +149,12 @@ static void s5p_mfc_watchdog_worker(struct work_struct *work)
 		if (!ctx)
 			continue;
 		ctx->state = MFCINST_ERROR;
-		s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
-		s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
+		s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
+				&ctx->vq_dst);
+		s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
+				&ctx->vq_src);
 		clear_work_bit(ctx);
-		wake_up_ctx(ctx, S5P_FIMV_R2H_CMD_ERR_RET, 0);
+		wake_up_ctx(ctx, S5P_MFC_R2H_CMD_ERR_RET, 0);
 	}
 	clear_bit(0, &dev->hw_lock);
 	spin_unlock_irqrestore(&dev->irqlock, flags);
@@ -198,6 +201,7 @@ static void s5p_mfc_clear_int_flags(struct s5p_mfc_dev *dev)
 static void s5p_mfc_handle_frame_all_extracted(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_buf *dst_buf;
+	struct s5p_mfc_dev *dev = ctx->dev;
 
 	ctx->state = MFCINST_FINISHED;
 	ctx->sequence++;
@@ -212,8 +216,8 @@ static void s5p_mfc_handle_frame_all_extracted(struct s5p_mfc_ctx *ctx)
 		ctx->dst_queue_cnt--;
 		dst_buf->b->v4l2_buf.sequence = (ctx->sequence++);
 
-		if (s5p_mfc_read_info_v5(ctx, PIC_TIME_TOP) ==
-			s5p_mfc_read_info_v5(ctx, PIC_TIME_BOT))
+		if (s5p_mfc_hw_call(dev->mfc_ops, get_pic_type_top, ctx) ==
+			s5p_mfc_hw_call(dev->mfc_ops, get_pic_type_bot, ctx))
 			dst_buf->b->v4l2_buf.field = V4L2_FIELD_NONE;
 		else
 			dst_buf->b->v4l2_buf.field = V4L2_FIELD_INTERLACED;
@@ -227,8 +231,11 @@ static void s5p_mfc_handle_frame_copy_time(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	struct s5p_mfc_buf  *dst_buf, *src_buf;
-	size_t dec_y_addr = s5p_mfc_get_dec_y_adr();
-	unsigned int frame_type = s5p_mfc_get_frame_type();
+	size_t dec_y_addr;
+	unsigned int frame_type;
+
+	dec_y_addr = s5p_mfc_hw_call(dev->mfc_ops, get_dec_y_adr, dev);
+	frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_dec_frame_type, dev);
 
 	/* Copy timestamp / timecode from decoded src to dst and set
 	   appropraite flags */
@@ -264,10 +271,13 @@ static void s5p_mfc_handle_frame_new(struct s5p_mfc_ctx *ctx, unsigned int err)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	struct s5p_mfc_buf  *dst_buf;
-	size_t dspl_y_addr = s5p_mfc_get_dspl_y_adr();
-	unsigned int frame_type = s5p_mfc_get_frame_type();
+	size_t dspl_y_addr;
+	unsigned int frame_type;
 	unsigned int index;
 
+	dspl_y_addr = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_y_adr, dev);
+	frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_dec_frame_type, dev);
+
 	/* If frame is same as previous then skip and do not dequeue */
 	if (frame_type == S5P_FIMV_DECODE_FRAME_SKIPPED) {
 		if (!ctx->after_packed_pb)
@@ -284,8 +294,10 @@ static void s5p_mfc_handle_frame_new(struct s5p_mfc_ctx *ctx, unsigned int err)
 			list_del(&dst_buf->list);
 			ctx->dst_queue_cnt--;
 			dst_buf->b->v4l2_buf.sequence = ctx->sequence;
-			if (s5p_mfc_read_info_v5(ctx, PIC_TIME_TOP) ==
-				s5p_mfc_read_info_v5(ctx, PIC_TIME_BOT))
+			if (s5p_mfc_hw_call(dev->mfc_ops,
+					get_pic_type_top, ctx) ==
+				s5p_mfc_hw_call(dev->mfc_ops,
+					get_pic_type_bot, ctx))
 				dst_buf->b->v4l2_buf.field = V4L2_FIELD_NONE;
 			else
 				dst_buf->b->v4l2_buf.field =
@@ -316,21 +328,21 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
 
 	unsigned int index;
 
-	dst_frame_status = s5p_mfc_get_dspl_status()
+	dst_frame_status = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_status, dev)
 				& S5P_FIMV_DEC_STATUS_DECODING_STATUS_MASK;
-	res_change = s5p_mfc_get_dspl_status()
+	res_change = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_status, dev)
 				& S5P_FIMV_DEC_STATUS_RESOLUTION_MASK;
 	mfc_debug(2, "Frame Status: %x\n", dst_frame_status);
 	if (ctx->state == MFCINST_RES_CHANGE_INIT)
 		ctx->state = MFCINST_RES_CHANGE_FLUSH;
 	if (res_change) {
 		ctx->state = MFCINST_RES_CHANGE_INIT;
-		s5p_mfc_clear_int_flags(dev);
+		s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 		wake_up_ctx(ctx, reason, err);
 		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 			BUG();
 		s5p_mfc_clock_off();
-		s5p_mfc_try_run(dev);
+		s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 		return;
 	}
 	if (ctx->dpb_flush_flag)
@@ -364,9 +376,12 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
 		&& !list_empty(&ctx->src_queue)) {
 		src_buf = list_entry(ctx->src_queue.next, struct s5p_mfc_buf,
 								list);
-		ctx->consumed_stream += s5p_mfc_get_consumed_stream();
-		if (ctx->codec_mode != S5P_FIMV_CODEC_H264_DEC &&
-			s5p_mfc_get_frame_type() == S5P_FIMV_DECODE_FRAME_P_FRAME
+		ctx->consumed_stream += s5p_mfc_hw_call(dev->mfc_ops,
+						get_consumed_stream, dev);
+		if (ctx->codec_mode != S5P_MFC_CODEC_H264_DEC &&
+			s5p_mfc_hw_call(dev->mfc_ops,
+				get_dec_frame_type, dev) ==
+					S5P_FIMV_DECODE_FRAME_P_FRAME
 					&& ctx->consumed_stream + STUFF_BYTE <
 					src_buf->b->v4l2_planes[0].bytesused) {
 			/* Run MFC again on the same buffer */
@@ -378,7 +393,7 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
 			ctx->consumed_stream = 0;
 			list_del(&src_buf->list);
 			ctx->src_queue_cnt--;
-			if (s5p_mfc_err_dec(err) > 0)
+			if (s5p_mfc_hw_call(dev->mfc_ops, err_dec, err) > 0)
 				vb2_buffer_done(src_buf->b, VB2_BUF_STATE_ERROR);
 			else
 				vb2_buffer_done(src_buf->b, VB2_BUF_STATE_DONE);
@@ -389,12 +404,12 @@ leave_handle_frame:
 	if ((ctx->src_queue_cnt == 0 && ctx->state != MFCINST_FINISHING)
 				    || ctx->dst_queue_cnt < ctx->dpb_count)
 		clear_work_bit(ctx);
-	s5p_mfc_clear_int_flags(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	wake_up_ctx(ctx, reason, err);
 	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 		BUG();
 	s5p_mfc_clock_off();
-	s5p_mfc_try_run(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 }
 
 /* Error handling for interrupt */
@@ -411,7 +426,7 @@ static void s5p_mfc_handle_error(struct s5p_mfc_ctx *ctx,
 
 	dev = ctx->dev;
 	mfc_err("Interrupt Error: %08x\n", err);
-	s5p_mfc_clear_int_flags(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	wake_up_dev(dev, reason, err);
 
 	/* Error recovery is dependent on the state of context */
@@ -440,9 +455,11 @@ static void s5p_mfc_handle_error(struct s5p_mfc_ctx *ctx,
 		ctx->state = MFCINST_ERROR;
 		/* Mark all dst buffers as having an error */
 		spin_lock_irqsave(&dev->irqlock, flags);
-		s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
+		s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
+				&ctx->vq_dst);
 		/* Mark all src buffers as having an error */
-		s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
+		s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
+				&ctx->vq_src);
 		spin_unlock_irqrestore(&dev->irqlock, flags);
 		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 			BUG();
@@ -469,8 +486,10 @@ static void s5p_mfc_handle_seq_done(struct s5p_mfc_ctx *ctx,
 		if (ctx->c_ops->post_seq_start(ctx))
 			mfc_err("post_seq_start() failed\n");
 	} else {
-		ctx->img_width = s5p_mfc_get_img_width();
-		ctx->img_height = s5p_mfc_get_img_height();
+		ctx->img_width = s5p_mfc_hw_call(dev->mfc_ops, get_img_width,
+				dev);
+		ctx->img_height = s5p_mfc_hw_call(dev->mfc_ops, get_img_height,
+				dev);
 
 		ctx->buf_width = ALIGN(ctx->img_width,
 						S5P_FIMV_NV12MT_HALIGN);
@@ -506,18 +525,19 @@ static void s5p_mfc_handle_seq_done(struct s5p_mfc_ctx *ctx,
 				guard_height, S5P_FIMV_DEC_BUF_ALIGN);
 			ctx->mv_size = 0;
 		}
-		ctx->dpb_count = s5p_mfc_get_dpb_count();
+		ctx->dpb_count = s5p_mfc_hw_call(dev->mfc_ops, get_dpb_count,
+				dev);
 		if (ctx->img_width == 0 || ctx->img_height == 0)
 			ctx->state = MFCINST_ERROR;
 		else
 			ctx->state = MFCINST_HEAD_PARSED;
 	}
-	s5p_mfc_clear_int_flags(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	clear_work_bit(ctx);
 	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 		BUG();
 	s5p_mfc_clock_off();
-	s5p_mfc_try_run(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 	wake_up_ctx(ctx, reason, err);
 }
 
@@ -532,7 +552,7 @@ static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx,
 	if (ctx == NULL)
 		return;
 	dev = ctx->dev;
-	s5p_mfc_clear_int_flags(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	ctx->int_type = reason;
 	ctx->int_err = err;
 	ctx->int_cond = 1;
@@ -559,7 +579,7 @@ static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx,
 		s5p_mfc_clock_off();
 
 		wake_up(&ctx->queue);
-		s5p_mfc_try_run(dev);
+		s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 	} else {
 		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 			BUG();
@@ -601,7 +621,7 @@ static void s5p_mfc_handle_stream_complete(struct s5p_mfc_ctx *ctx,
 
 	s5p_mfc_clock_off();
 	wake_up(&ctx->queue);
-	s5p_mfc_try_run(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 }
 
 /* Interrupt processing */
@@ -617,81 +637,83 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
 	atomic_set(&dev->watchdog_cnt, 0);
 	ctx = dev->ctx[dev->curr_ctx];
 	/* Get the reason of interrupt and the error code */
-	reason = s5p_mfc_get_int_reason();
-	err = s5p_mfc_get_int_err();
+	reason = s5p_mfc_hw_call(dev->mfc_ops, get_int_reason, dev);
+	err = s5p_mfc_hw_call(dev->mfc_ops, get_int_err, dev);
 	mfc_debug(1, "Int reason: %d (err: %08x)\n", reason, err);
 	switch (reason) {
-	case S5P_FIMV_R2H_CMD_ERR_RET:
+	case S5P_MFC_R2H_CMD_ERR_RET:
 		/* An error has occured */
 		if (ctx->state == MFCINST_RUNNING &&
-			s5p_mfc_err_dec(err) >= S5P_FIMV_ERR_WARNINGS_START)
+			s5p_mfc_hw_call(dev->mfc_ops, err_dec, err) >=
+				dev->warn_start)
 			s5p_mfc_handle_frame(ctx, reason, err);
 		else
 			s5p_mfc_handle_error(ctx, reason, err);
 		clear_bit(0, &dev->enter_suspend);
 		break;
 
-	case S5P_FIMV_R2H_CMD_SLICE_DONE_RET:
-	case S5P_FIMV_R2H_CMD_FRAME_DONE_RET:
+	case S5P_MFC_R2H_CMD_SLICE_DONE_RET:
+	case S5P_MFC_R2H_CMD_FIELD_DONE_RET:
+	case S5P_MFC_R2H_CMD_FRAME_DONE_RET:
 		if (ctx->c_ops->post_frame_start) {
 			if (ctx->c_ops->post_frame_start(ctx))
 				mfc_err("post_frame_start() failed\n");
-			s5p_mfc_clear_int_flags(dev);
+			s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 			wake_up_ctx(ctx, reason, err);
 			if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 				BUG();
 			s5p_mfc_clock_off();
-			s5p_mfc_try_run(dev);
+			s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 		} else {
 			s5p_mfc_handle_frame(ctx, reason, err);
 		}
 		break;
 
-	case S5P_FIMV_R2H_CMD_SEQ_DONE_RET:
+	case S5P_MFC_R2H_CMD_SEQ_DONE_RET:
 		s5p_mfc_handle_seq_done(ctx, reason, err);
 		break;
 
-	case S5P_FIMV_R2H_CMD_OPEN_INSTANCE_RET:
-		ctx->inst_no = s5p_mfc_get_inst_no();
+	case S5P_MFC_R2H_CMD_OPEN_INSTANCE_RET:
+		ctx->inst_no = s5p_mfc_hw_call(dev->mfc_ops, get_inst_no, dev);
 		ctx->state = MFCINST_GOT_INST;
 		clear_work_bit(ctx);
 		wake_up(&ctx->queue);
 		goto irq_cleanup_hw;
 
-	case S5P_FIMV_R2H_CMD_CLOSE_INSTANCE_RET:
+	case S5P_MFC_R2H_CMD_CLOSE_INSTANCE_RET:
 		clear_work_bit(ctx);
 		ctx->state = MFCINST_FREE;
 		wake_up(&ctx->queue);
 		goto irq_cleanup_hw;
 
-	case S5P_FIMV_R2H_CMD_SYS_INIT_RET:
-	case S5P_FIMV_R2H_CMD_FW_STATUS_RET:
-	case S5P_FIMV_R2H_CMD_SLEEP_RET:
-	case S5P_FIMV_R2H_CMD_WAKEUP_RET:
+	case S5P_MFC_R2H_CMD_SYS_INIT_RET:
+	case S5P_MFC_R2H_CMD_FW_STATUS_RET:
+	case S5P_MFC_R2H_CMD_SLEEP_RET:
+	case S5P_MFC_R2H_CMD_WAKEUP_RET:
 		if (ctx)
 			clear_work_bit(ctx);
-		s5p_mfc_clear_int_flags(dev);
+		s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 		wake_up_dev(dev, reason, err);
 		clear_bit(0, &dev->hw_lock);
 		clear_bit(0, &dev->enter_suspend);
 		break;
 
-	case S5P_FIMV_R2H_CMD_INIT_BUFFERS_RET:
+	case S5P_MFC_R2H_CMD_INIT_BUFFERS_RET:
 		s5p_mfc_handle_init_buffers(ctx, reason, err);
 		break;
 
-	case S5P_FIMV_R2H_CMD_ENC_COMPLETE_RET:
+	case S5P_MFC_R2H_CMD_COMPLETE_SEQ_RET:
 		s5p_mfc_handle_stream_complete(ctx, reason, err);
 		break;
 
 	default:
 		mfc_debug(2, "Unknown int reason\n");
-		s5p_mfc_clear_int_flags(dev);
+		s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	}
 	mfc_debug_leave();
 	return IRQ_HANDLED;
 irq_cleanup_hw:
-	s5p_mfc_clear_int_flags(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	ctx->int_type = reason;
 	ctx->int_err = err;
 	ctx->int_cond = 1;
@@ -700,7 +722,7 @@ irq_cleanup_hw:
 
 	s5p_mfc_clock_off();
 
-	s5p_mfc_try_run(dev);
+	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 	mfc_debug(2, "Exit via irq_cleanup_hw\n");
 	return IRQ_HANDLED;
 }
@@ -748,6 +770,7 @@ static int s5p_mfc_open(struct file *file)
 	if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
 		ctx->type = MFCINST_DECODER;
 		ctx->c_ops = get_dec_codec_ops();
+		s5p_mfc_dec_init(ctx);
 		/* Setup ctrl handler */
 		ret = s5p_mfc_dec_ctrls_setup(ctx);
 		if (ret) {
@@ -760,6 +783,7 @@ static int s5p_mfc_open(struct file *file)
 		/* only for encoder */
 		INIT_LIST_HEAD(&ctx->ref_queue);
 		ctx->ref_queue_cnt = 0;
+		s5p_mfc_enc_init(ctx);
 		/* Setup ctrl handler */
 		ret = s5p_mfc_enc_ctrls_setup(ctx);
 		if (ret) {
@@ -885,19 +909,20 @@ static int s5p_mfc_release(struct file *file)
 		ctx->state = MFCINST_RETURN_INST;
 		set_work_bit_irqsave(ctx);
 		s5p_mfc_clean_ctx_int_flags(ctx);
-		s5p_mfc_try_run(dev);
+		s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 		/* Wait until instance is returned or timeout occured */
 		if (s5p_mfc_wait_for_done_ctx
-		    (ctx, S5P_FIMV_R2H_CMD_CLOSE_INSTANCE_RET, 0)) {
+		    (ctx, S5P_MFC_R2H_CMD_CLOSE_INSTANCE_RET, 0)) {
 			s5p_mfc_clock_off();
 			mfc_err("Err returning instance\n");
 		}
 		mfc_debug(2, "After free instance\n");
 		/* Free resources */
-		s5p_mfc_release_codec_buffers(ctx);
-		s5p_mfc_release_instance_buffer(ctx);
+		s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers, ctx);
+		s5p_mfc_hw_call(dev->mfc_ops, release_instance_buffer, ctx);
 		if (ctx->type == MFCINST_DECODER)
-			s5p_mfc_release_dec_desc_buffer(ctx);
+			s5p_mfc_hw_call(dev->mfc_ops, release_dec_desc_buffer,
+					ctx);
 
 		ctx->inst_no = MFC_NO_INSTANCE_SET;
 	}
@@ -909,6 +934,7 @@ static int s5p_mfc_release(struct file *file)
 		mfc_debug(2, "Last instance - release firmware\n");
 		/* reset <-> F/W release */
 		s5p_mfc_reset(dev);
+		s5p_mfc_deinit_hw(dev);
 		s5p_mfc_release_firmware(dev);
 		del_timer_sync(&dev->watchdog_timer);
 		if (s5p_mfc_power_off() < 0)
@@ -1159,6 +1185,10 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 	dev->watchdog_timer.data = (unsigned long)dev;
 	dev->watchdog_timer.function = s5p_mfc_watchdog;
 
+	/* Initialize HW ops and commands based on MFC version */
+	s5p_mfc_init_hw_ops(dev);
+	s5p_mfc_init_hw_cmds(dev);
+
 	pr_debug("%s--\n", __func__);
 	return 0;