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media: vsp1: Support Interlaced display pipelines

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Calculate the top and bottom fields for the interlaced frames and
utilise the extended display list command feature to implement the
auto-field operations. This allows the DU to update the VSP2 registers
dynamically based upon the currently processing field.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Kieran Bingham 2018-08-03 07:37:29 -04:00 committed by Mauro Carvalho Chehab
parent f3b98e3c4d
commit e90561d40f
6 changed files with 90 additions and 5 deletions
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10
drivers/media/platform/vsp1/vsp1_dl.c
View File

@ -947,6 +947,8 @@ void vsp1_dl_list_commit(struct vsp1_dl_list *dl, bool internal)
*/
unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
{
struct vsp1_device *vsp1 = dlm->vsp1;
u32 status = vsp1_read(vsp1, VI6_STATUS);
unsigned int flags = 0;
spin_lock(&dlm->lock);
@ -971,6 +973,14 @@ unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
if (vsp1_dl_list_hw_update_pending(dlm))
goto done;
/*
* Progressive streams report only TOP fields. If we have a BOTTOM
* field, we are interlaced, and expect the frame to complete on the
* next frame end interrupt.
*/
if (status & VI6_STATUS_FLD_STD(dlm->index))
goto done;
/*
* The device starts processing the queued display list right after the
* frame end interrupt. The display list thus becomes active.

6
drivers/media/platform/vsp1/vsp1_drm.c
View File

@ -670,9 +670,11 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
drm_pipe->width = cfg->width;
drm_pipe->height = cfg->height;
pipe->interlaced = cfg->interlaced;
dev_dbg(vsp1->dev, "%s: configuring LIF%u with format %ux%u\n",
__func__, pipe_index, cfg->width, cfg->height);
dev_dbg(vsp1->dev, "%s: configuring LIF%u with format %ux%u%s\n",
__func__, pipe_index, cfg->width, cfg->height,
pipe->interlaced ? "i" : "");
mutex_lock(&vsp1->drm->lock);

2
drivers/media/platform/vsp1/vsp1_pipe.h
View File

@ -104,6 +104,7 @@ struct vsp1_partition {
* @entities: list of entities in the pipeline
* @stream_config: cached stream configuration for video pipelines
* @configured: when false the @stream_config shall be written to the hardware
* @interlaced: True when the pipeline is configured in interlaced mode
* @partitions: The number of partitions used to process one frame
* @partition: The current partition for configuration to process
* @part_table: The pre-calculated partitions used by the pipeline
@ -142,6 +143,7 @@ struct vsp1_pipeline {
struct vsp1_dl_body *stream_config;
bool configured;
bool interlaced;
unsigned int partitions;
struct vsp1_partition *partition;

3
drivers/media/platform/vsp1/vsp1_regs.h
View File

@ -28,6 +28,7 @@
#define VI6_SRESET_SRTS(n) (1 << (n))
#define VI6_STATUS 0x0038
#define VI6_STATUS_FLD_STD(n) (1 << ((n) + 28))
#define VI6_STATUS_SYS_ACT(n) (1 << ((n) + 8))
#define VI6_WPF_IRQ_ENB(n) (0x0048 + (n) * 12)
@ -80,6 +81,8 @@
#define VI6_DL_EXT_CTRL_EXPRI (1 << 4)
#define VI6_DL_EXT_CTRL_EXT (1 << 0)
#define VI6_DL_EXT_AUTOFLD_INT BIT(0)
#define VI6_DL_BODY_SIZE 0x0120
#define VI6_DL_BODY_SIZE_UPD (1 << 24)
#define VI6_DL_BODY_SIZE_BS_MASK (0x1ffff << 0)

72
drivers/media/platform/vsp1/vsp1_rpf.c
View File

@ -20,6 +20,18 @@
#define RPF_MAX_WIDTH 8190
#define RPF_MAX_HEIGHT 8190
/* Pre extended display list command data structure. */
struct vsp1_extcmd_auto_fld_body {
u32 top_y0;
u32 bottom_y0;
u32 top_c0;
u32 bottom_c0;
u32 top_c1;
u32 bottom_c1;
u32 reserved0;
u32 reserved1;
} __packed;
/* -----------------------------------------------------------------------------
* Device Access
*/
@ -64,6 +76,14 @@ static void rpf_configure_stream(struct vsp1_entity *entity,
pstride |= format->plane_fmt[1].bytesperline
<< VI6_RPF_SRCM_PSTRIDE_C_SHIFT;
/*
* pstride has both STRIDE_Y and STRIDE_C, but multiplying the whole
* of pstride by 2 is conveniently OK here as we are multiplying both
* values.
*/
if (pipe->interlaced)
pstride *= 2;
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_PSTRIDE, pstride);
/* Format */
@ -100,6 +120,9 @@ static void rpf_configure_stream(struct vsp1_entity *entity,
top = compose->top;
}
if (pipe->interlaced)
top /= 2;
vsp1_rpf_write(rpf, dlb, VI6_RPF_LOC,
(left << VI6_RPF_LOC_HCOORD_SHIFT) |
(top << VI6_RPF_LOC_VCOORD_SHIFT));
@ -169,6 +192,36 @@ static void rpf_configure_stream(struct vsp1_entity *entity,
}
static void vsp1_rpf_configure_autofld(struct vsp1_rwpf *rpf,
struct vsp1_dl_list *dl)
{
const struct v4l2_pix_format_mplane *format = &rpf->format;
struct vsp1_dl_ext_cmd *cmd;
struct vsp1_extcmd_auto_fld_body *auto_fld;
u32 offset_y, offset_c;
cmd = vsp1_dl_get_pre_cmd(dl);
if (WARN_ONCE(!cmd, "Failed to obtain an autofld cmd"))
return;
/* Re-index our auto_fld to match the current RPF. */
auto_fld = cmd->data;
auto_fld = &auto_fld[rpf->entity.index];
auto_fld->top_y0 = rpf->mem.addr[0];
auto_fld->top_c0 = rpf->mem.addr[1];
auto_fld->top_c1 = rpf->mem.addr[2];
offset_y = format->plane_fmt[0].bytesperline;
offset_c = format->plane_fmt[1].bytesperline;
auto_fld->bottom_y0 = rpf->mem.addr[0] + offset_y;
auto_fld->bottom_c0 = rpf->mem.addr[1] + offset_c;
auto_fld->bottom_c1 = rpf->mem.addr[2] + offset_c;
cmd->flags |= VI6_DL_EXT_AUTOFLD_INT | BIT(16 + rpf->entity.index);
}
static void rpf_configure_frame(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl,
@ -221,6 +274,11 @@ static void rpf_configure_partition(struct vsp1_entity *entity,
crop.left += pipe->partition->rpf.left;
}
if (pipe->interlaced) {
crop.height = round_down(crop.height / 2, fmtinfo->vsub);
crop.top = round_down(crop.top / 2, fmtinfo->vsub);
}
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRC_BSIZE,
(crop.width << VI6_RPF_SRC_BSIZE_BHSIZE_SHIFT) |
(crop.height << VI6_RPF_SRC_BSIZE_BVSIZE_SHIFT));
@ -249,9 +307,17 @@ static void rpf_configure_partition(struct vsp1_entity *entity,
fmtinfo->swap_uv)
swap(mem.addr[1], mem.addr[2]);
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_Y, mem.addr[0]);
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C0, mem.addr[1]);
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C1, mem.addr[2]);
/*
* Interlaced pipelines will use the extended pre-cmd to process
* SRCM_ADDR_{Y,C0,C1}
*/
if (pipe->interlaced) {
vsp1_rpf_configure_autofld(rpf, dl);
} else {
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_Y, mem.addr[0]);
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C0, mem.addr[1]);
vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C1, mem.addr[2]);
}
}
static void rpf_partition(struct vsp1_entity *entity,

2
include/media/vsp1.h
View File

@ -25,6 +25,7 @@ int vsp1_du_init(struct device *dev);
* struct vsp1_du_lif_config - VSP LIF configuration
* @width: output frame width
* @height: output frame height
* @interlaced: true for interlaced pipelines
* @callback: frame completion callback function (optional). When a callback
* is provided, the VSP driver guarantees that it will be called once
* and only once for each vsp1_du_atomic_flush() call.
@ -33,6 +34,7 @@ int vsp1_du_init(struct device *dev);
struct vsp1_du_lif_config {
unsigned int width;
unsigned int height;
bool interlaced;
void (*callback)(void *data, bool completed, u32 crc);
void *callback_data;