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linux/drivers/gpu/drm/sti/sti_hqvdp.c

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/*
* Copyright (C) STMicroelectronics SA 2014
* Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
* License terms: GNU General Public License (GPL), version 2
*/
#include <linux/component.h>
#include <linux/firmware.h>
#include <linux/reset.h>
#include <linux/seq_file.h>
#include <drm/drm_atomic.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include "sti_compositor.h"
#include "sti_hqvdp_lut.h"
#include "sti_plane.h"
#include "sti_vtg.h"
#include "sti_drv.h"
/* Firmware name */
#define HQVDP_FMW_NAME "hqvdp-stih407.bin"
/* Regs address */
#define HQVDP_DMEM 0x00000000 /* 0x00000000 */
#define HQVDP_PMEM 0x00040000 /* 0x00040000 */
#define HQVDP_RD_PLUG 0x000E0000 /* 0x000E0000 */
#define HQVDP_RD_PLUG_CONTROL (HQVDP_RD_PLUG + 0x1000) /* 0x000E1000 */
#define HQVDP_RD_PLUG_PAGE_SIZE (HQVDP_RD_PLUG + 0x1004) /* 0x000E1004 */
#define HQVDP_RD_PLUG_MIN_OPC (HQVDP_RD_PLUG + 0x1008) /* 0x000E1008 */
#define HQVDP_RD_PLUG_MAX_OPC (HQVDP_RD_PLUG + 0x100C) /* 0x000E100C */
#define HQVDP_RD_PLUG_MAX_CHK (HQVDP_RD_PLUG + 0x1010) /* 0x000E1010 */
#define HQVDP_RD_PLUG_MAX_MSG (HQVDP_RD_PLUG + 0x1014) /* 0x000E1014 */
#define HQVDP_RD_PLUG_MIN_SPACE (HQVDP_RD_PLUG + 0x1018) /* 0x000E1018 */
#define HQVDP_WR_PLUG 0x000E2000 /* 0x000E2000 */
#define HQVDP_WR_PLUG_CONTROL (HQVDP_WR_PLUG + 0x1000) /* 0x000E3000 */
#define HQVDP_WR_PLUG_PAGE_SIZE (HQVDP_WR_PLUG + 0x1004) /* 0x000E3004 */
#define HQVDP_WR_PLUG_MIN_OPC (HQVDP_WR_PLUG + 0x1008) /* 0x000E3008 */
#define HQVDP_WR_PLUG_MAX_OPC (HQVDP_WR_PLUG + 0x100C) /* 0x000E300C */
#define HQVDP_WR_PLUG_MAX_CHK (HQVDP_WR_PLUG + 0x1010) /* 0x000E3010 */
#define HQVDP_WR_PLUG_MAX_MSG (HQVDP_WR_PLUG + 0x1014) /* 0x000E3014 */
#define HQVDP_WR_PLUG_MIN_SPACE (HQVDP_WR_PLUG + 0x1018) /* 0x000E3018 */
#define HQVDP_MBX 0x000E4000 /* 0x000E4000 */
#define HQVDP_MBX_IRQ_TO_XP70 (HQVDP_MBX + 0x0000) /* 0x000E4000 */
#define HQVDP_MBX_INFO_HOST (HQVDP_MBX + 0x0004) /* 0x000E4004 */
#define HQVDP_MBX_IRQ_TO_HOST (HQVDP_MBX + 0x0008) /* 0x000E4008 */
#define HQVDP_MBX_INFO_XP70 (HQVDP_MBX + 0x000C) /* 0x000E400C */
#define HQVDP_MBX_SW_RESET_CTRL (HQVDP_MBX + 0x0010) /* 0x000E4010 */
#define HQVDP_MBX_STARTUP_CTRL1 (HQVDP_MBX + 0x0014) /* 0x000E4014 */
#define HQVDP_MBX_STARTUP_CTRL2 (HQVDP_MBX + 0x0018) /* 0x000E4018 */
#define HQVDP_MBX_GP_STATUS (HQVDP_MBX + 0x001C) /* 0x000E401C */
#define HQVDP_MBX_NEXT_CMD (HQVDP_MBX + 0x0020) /* 0x000E4020 */
#define HQVDP_MBX_CURRENT_CMD (HQVDP_MBX + 0x0024) /* 0x000E4024 */
#define HQVDP_MBX_SOFT_VSYNC (HQVDP_MBX + 0x0028) /* 0x000E4028 */
/* Plugs config */
#define PLUG_CONTROL_ENABLE 0x00000001
#define PLUG_PAGE_SIZE_256 0x00000002
#define PLUG_MIN_OPC_8 0x00000003
#define PLUG_MAX_OPC_64 0x00000006
#define PLUG_MAX_CHK_2X 0x00000001
#define PLUG_MAX_MSG_1X 0x00000000
#define PLUG_MIN_SPACE_1 0x00000000
/* SW reset CTRL */
#define SW_RESET_CTRL_FULL BIT(0)
#define SW_RESET_CTRL_CORE BIT(1)
/* Startup ctrl 1 */
#define STARTUP_CTRL1_RST_DONE BIT(0)
#define STARTUP_CTRL1_AUTH_IDLE BIT(2)
/* Startup ctrl 2 */
#define STARTUP_CTRL2_FETCH_EN BIT(1)
/* Info xP70 */
#define INFO_XP70_FW_READY BIT(15)
#define INFO_XP70_FW_PROCESSING BIT(14)
#define INFO_XP70_FW_INITQUEUES BIT(13)
/* SOFT_VSYNC */
#define SOFT_VSYNC_HW 0x00000000
#define SOFT_VSYNC_SW_CMD 0x00000001
#define SOFT_VSYNC_SW_CTRL_IRQ 0x00000003
/* Reset & boot poll config */
#define POLL_MAX_ATTEMPT 50
#define POLL_DELAY_MS 20
#define SCALE_FACTOR 8192
#define SCALE_MAX_FOR_LEG_LUT_F 4096
#define SCALE_MAX_FOR_LEG_LUT_E 4915
#define SCALE_MAX_FOR_LEG_LUT_D 6654
#define SCALE_MAX_FOR_LEG_LUT_C 8192
enum sti_hvsrc_orient {
HVSRC_HORI,
HVSRC_VERT
};
/* Command structures */
struct sti_hqvdp_top {
u32 config;
u32 mem_format;
u32 current_luma;
u32 current_enh_luma;
u32 current_right_luma;
u32 current_enh_right_luma;
u32 current_chroma;
u32 current_enh_chroma;
u32 current_right_chroma;
u32 current_enh_right_chroma;
u32 output_luma;
u32 output_chroma;
u32 luma_src_pitch;
u32 luma_enh_src_pitch;
u32 luma_right_src_pitch;
u32 luma_enh_right_src_pitch;
u32 chroma_src_pitch;
u32 chroma_enh_src_pitch;
u32 chroma_right_src_pitch;
u32 chroma_enh_right_src_pitch;
u32 luma_processed_pitch;
u32 chroma_processed_pitch;
u32 input_frame_size;
u32 input_viewport_ori;
u32 input_viewport_ori_right;
u32 input_viewport_size;
u32 left_view_border_width;
u32 right_view_border_width;
u32 left_view_3d_offset_width;
u32 right_view_3d_offset_width;
u32 side_stripe_color;
u32 crc_reset_ctrl;
};
/* Configs for interlaced : no IT, no pass thru, 3 fields */
#define TOP_CONFIG_INTER_BTM 0x00000000
#define TOP_CONFIG_INTER_TOP 0x00000002
/* Config for progressive : no IT, no pass thru, 3 fields */
#define TOP_CONFIG_PROGRESSIVE 0x00000001
/* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */
#define TOP_MEM_FORMAT_DFLT 0x00018060
/* Min/Max size */
#define MAX_WIDTH 0x1FFF
#define MAX_HEIGHT 0x0FFF
#define MIN_WIDTH 0x0030
#define MIN_HEIGHT 0x0010
struct sti_hqvdp_vc1re {
u32 ctrl_prv_csdi;
u32 ctrl_cur_csdi;
u32 ctrl_nxt_csdi;
u32 ctrl_cur_fmd;
u32 ctrl_nxt_fmd;
};
struct sti_hqvdp_fmd {
u32 config;
u32 viewport_ori;
u32 viewport_size;
u32 next_next_luma;
u32 next_next_right_luma;
u32 next_next_next_luma;
u32 next_next_next_right_luma;
u32 threshold_scd;
u32 threshold_rfd;
u32 threshold_move;
u32 threshold_cfd;
};
struct sti_hqvdp_csdi {
u32 config;
u32 config2;
u32 dcdi_config;
u32 prev_luma;
u32 prev_enh_luma;
u32 prev_right_luma;
u32 prev_enh_right_luma;
u32 next_luma;
u32 next_enh_luma;
u32 next_right_luma;
u32 next_enh_right_luma;
u32 prev_chroma;
u32 prev_enh_chroma;
u32 prev_right_chroma;
u32 prev_enh_right_chroma;
u32 next_chroma;
u32 next_enh_chroma;
u32 next_right_chroma;
u32 next_enh_right_chroma;
u32 prev_motion;
u32 prev_right_motion;
u32 cur_motion;
u32 cur_right_motion;
u32 next_motion;
u32 next_right_motion;
};
/* Config for progressive: by pass */
#define CSDI_CONFIG_PROG 0x00000000
/* Config for directional deinterlacing without motion */
#define CSDI_CONFIG_INTER_DIR 0x00000016
/* Additional configs for fader, blender, motion,... deinterlace algorithms */
#define CSDI_CONFIG2_DFLT 0x000001B3
#define CSDI_DCDI_CONFIG_DFLT 0x00203803
struct sti_hqvdp_hvsrc {
u32 hor_panoramic_ctrl;
u32 output_picture_size;
u32 init_horizontal;
u32 init_vertical;
u32 param_ctrl;
u32 yh_coef[NB_COEF];
u32 ch_coef[NB_COEF];
u32 yv_coef[NB_COEF];
u32 cv_coef[NB_COEF];
u32 hori_shift;
u32 vert_shift;
};
/* Default ParamCtrl: all controls enabled */
#define HVSRC_PARAM_CTRL_DFLT 0xFFFFFFFF
struct sti_hqvdp_iqi {
u32 config;
u32 demo_wind_size;
u32 pk_config;
u32 coeff0_coeff1;
u32 coeff2_coeff3;
u32 coeff4;
u32 pk_lut;
u32 pk_gain;
u32 pk_coring_level;
u32 cti_config;
u32 le_config;
u32 le_lut[64];
u32 con_bri;
u32 sat_gain;
u32 pxf_conf;
u32 default_color;
};
/* Default Config : IQI bypassed */
#define IQI_CONFIG_DFLT 0x00000001
/* Default Contrast & Brightness gain = 256 */
#define IQI_CON_BRI_DFLT 0x00000100
/* Default Saturation gain = 256 */
#define IQI_SAT_GAIN_DFLT 0x00000100
/* Default PxfConf : P2I bypassed */
#define IQI_PXF_CONF_DFLT 0x00000001
struct sti_hqvdp_top_status {
u32 processing_time;
u32 input_y_crc;
u32 input_uv_crc;
};
struct sti_hqvdp_fmd_status {
u32 fmd_repeat_move_status;
u32 fmd_scene_count_status;
u32 cfd_sum;
u32 field_sum;
u32 next_y_fmd_crc;
u32 next_next_y_fmd_crc;
u32 next_next_next_y_fmd_crc;
};
struct sti_hqvdp_csdi_status {
u32 prev_y_csdi_crc;
u32 cur_y_csdi_crc;
u32 next_y_csdi_crc;
u32 prev_uv_csdi_crc;
u32 cur_uv_csdi_crc;
u32 next_uv_csdi_crc;
u32 y_csdi_crc;
u32 uv_csdi_crc;
u32 uv_cup_crc;
u32 mot_csdi_crc;
u32 mot_cur_csdi_crc;
u32 mot_prev_csdi_crc;
};
struct sti_hqvdp_hvsrc_status {
u32 y_hvsrc_crc;
u32 u_hvsrc_crc;
u32 v_hvsrc_crc;
};
struct sti_hqvdp_iqi_status {
u32 pxf_it_status;
u32 y_iqi_crc;
u32 u_iqi_crc;
u32 v_iqi_crc;
};
/* Main commands. We use 2 commands one being processed by the firmware, one
* ready to be fetched upon next Vsync*/
#define NB_VDP_CMD 2
struct sti_hqvdp_cmd {
struct sti_hqvdp_top top;
struct sti_hqvdp_vc1re vc1re;
struct sti_hqvdp_fmd fmd;
struct sti_hqvdp_csdi csdi;
struct sti_hqvdp_hvsrc hvsrc;
struct sti_hqvdp_iqi iqi;
struct sti_hqvdp_top_status top_status;
struct sti_hqvdp_fmd_status fmd_status;
struct sti_hqvdp_csdi_status csdi_status;
struct sti_hqvdp_hvsrc_status hvsrc_status;
struct sti_hqvdp_iqi_status iqi_status;
};
/*
* STI HQVDP structure
*
* @dev: driver device
* @drm_dev: the drm device
* @regs: registers
* @plane: plane structure for hqvdp it self
* @clk: IP clock
* @clk_pix_main: pix main clock
* @reset: reset control
* @vtg_nb: notifier to handle VTG Vsync
* @btm_field_pending: is there any bottom field (interlaced frame) to display
* @hqvdp_cmd: buffer of commands
* @hqvdp_cmd_paddr: physical address of hqvdp_cmd
* @vtg: vtg for main data path
* @xp70_initialized: true if xp70 is already initialized
* @vtg_registered: true if registered to VTG
*/
struct sti_hqvdp {
struct device *dev;
struct drm_device *drm_dev;
void __iomem *regs;
struct sti_plane plane;
struct clk *clk;
struct clk *clk_pix_main;
struct reset_control *reset;
struct notifier_block vtg_nb;
bool btm_field_pending;
void *hqvdp_cmd;
u32 hqvdp_cmd_paddr;
struct sti_vtg *vtg;
bool xp70_initialized;
bool vtg_registered;
};
#define to_sti_hqvdp(x) container_of(x, struct sti_hqvdp, plane)
static const uint32_t hqvdp_supported_formats[] = {
DRM_FORMAT_NV12,
};
/**
* sti_hqvdp_get_free_cmd
* @hqvdp: hqvdp structure
*
* Look for a hqvdp_cmd that is not being used (or about to be used) by the FW.
*
* RETURNS:
* the offset of the command to be used.
* -1 in error cases
*/
static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
{
u32 curr_cmd, next_cmd;
u32 cmd = hqvdp->hqvdp_cmd_paddr;
int i;
curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
for (i = 0; i < NB_VDP_CMD; i++) {
if ((cmd != curr_cmd) && (cmd != next_cmd))
return i * sizeof(struct sti_hqvdp_cmd);
cmd += sizeof(struct sti_hqvdp_cmd);
}
return -1;
}
/**
* sti_hqvdp_get_curr_cmd
* @hqvdp: hqvdp structure
*
* Look for the hqvdp_cmd that is being used by the FW.
*
* RETURNS:
* the offset of the command to be used.
* -1 in error cases
*/
static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp)
{
u32 curr_cmd;
u32 cmd = hqvdp->hqvdp_cmd_paddr;
unsigned int i;
curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
for (i = 0; i < NB_VDP_CMD; i++) {
if (cmd == curr_cmd)
return i * sizeof(struct sti_hqvdp_cmd);
cmd += sizeof(struct sti_hqvdp_cmd);
}
return -1;
}
/**
* sti_hqvdp_get_next_cmd
* @hqvdp: hqvdp structure
*
* Look for the next hqvdp_cmd that will be used by the FW.
*
* RETURNS:
* the offset of the next command that will be used.
* -1 in error cases
*/
static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp)
{
int next_cmd;
dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
unsigned int i;
next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
for (i = 0; i < NB_VDP_CMD; i++) {
if (cmd == next_cmd)
return i * sizeof(struct sti_hqvdp_cmd);
cmd += sizeof(struct sti_hqvdp_cmd);
}
return -1;
}
#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
readl(hqvdp->regs + reg))
static const char *hqvdp_dbg_get_lut(u32 *coef)
{
if (!memcmp(coef, coef_lut_a_legacy, 16))
return "LUT A";
if (!memcmp(coef, coef_lut_b, 16))
return "LUT B";
if (!memcmp(coef, coef_lut_c_y_legacy, 16))
return "LUT C Y";
if (!memcmp(coef, coef_lut_c_c_legacy, 16))
return "LUT C C";
if (!memcmp(coef, coef_lut_d_y_legacy, 16))
return "LUT D Y";
if (!memcmp(coef, coef_lut_d_c_legacy, 16))
return "LUT D C";
if (!memcmp(coef, coef_lut_e_y_legacy, 16))
return "LUT E Y";
if (!memcmp(coef, coef_lut_e_c_legacy, 16))
return "LUT E C";
if (!memcmp(coef, coef_lut_f_y_legacy, 16))
return "LUT F Y";
if (!memcmp(coef, coef_lut_f_c_legacy, 16))
return "LUT F C";
return "<UNKNOWN>";
}
static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c)
{
int src_w, src_h, dst_w, dst_h;
seq_puts(s, "\n\tTOP:");
seq_printf(s, "\n\t %-20s 0x%08X", "Config", c->top.config);
switch (c->top.config) {
case TOP_CONFIG_PROGRESSIVE:
seq_puts(s, "\tProgressive");
break;
case TOP_CONFIG_INTER_TOP:
seq_puts(s, "\tInterlaced, top field");
break;
case TOP_CONFIG_INTER_BTM:
seq_puts(s, "\tInterlaced, bottom field");
break;
default:
seq_puts(s, "\t<UNKNOWN>");
break;
}
seq_printf(s, "\n\t %-20s 0x%08X", "MemFormat", c->top.mem_format);
seq_printf(s, "\n\t %-20s 0x%08X", "CurrentY", c->top.current_luma);
seq_printf(s, "\n\t %-20s 0x%08X", "CurrentC", c->top.current_chroma);
seq_printf(s, "\n\t %-20s 0x%08X", "YSrcPitch", c->top.luma_src_pitch);
seq_printf(s, "\n\t %-20s 0x%08X", "CSrcPitch",
c->top.chroma_src_pitch);
seq_printf(s, "\n\t %-20s 0x%08X", "InputFrameSize",
c->top.input_frame_size);
seq_printf(s, "\t%dx%d",
c->top.input_frame_size & 0x0000FFFF,
c->top.input_frame_size >> 16);
seq_printf(s, "\n\t %-20s 0x%08X", "InputViewportSize",
c->top.input_viewport_size);
src_w = c->top.input_viewport_size & 0x0000FFFF;
src_h = c->top.input_viewport_size >> 16;
seq_printf(s, "\t%dx%d", src_w, src_h);
seq_puts(s, "\n\tHVSRC:");
seq_printf(s, "\n\t %-20s 0x%08X", "OutputPictureSize",
c->hvsrc.output_picture_size);
dst_w = c->hvsrc.output_picture_size & 0x0000FFFF;
dst_h = c->hvsrc.output_picture_size >> 16;
seq_printf(s, "\t%dx%d", dst_w, dst_h);
seq_printf(s, "\n\t %-20s 0x%08X", "ParamCtrl", c->hvsrc.param_ctrl);
seq_printf(s, "\n\t %-20s %s", "yh_coef",
hqvdp_dbg_get_lut(c->hvsrc.yh_coef));
seq_printf(s, "\n\t %-20s %s", "ch_coef",
hqvdp_dbg_get_lut(c->hvsrc.ch_coef));
seq_printf(s, "\n\t %-20s %s", "yv_coef",
hqvdp_dbg_get_lut(c->hvsrc.yv_coef));
seq_printf(s, "\n\t %-20s %s", "cv_coef",
hqvdp_dbg_get_lut(c->hvsrc.cv_coef));
seq_printf(s, "\n\t %-20s", "ScaleH");
if (dst_w > src_w)
seq_printf(s, " %d/1", dst_w / src_w);
else
seq_printf(s, " 1/%d", src_w / dst_w);
seq_printf(s, "\n\t %-20s", "tScaleV");
if (dst_h > src_h)
seq_printf(s, " %d/1", dst_h / src_h);
else
seq_printf(s, " 1/%d", src_h / dst_h);
seq_puts(s, "\n\tCSDI:");
seq_printf(s, "\n\t %-20s 0x%08X\t", "Config", c->csdi.config);
switch (c->csdi.config) {
case CSDI_CONFIG_PROG:
seq_puts(s, "Bypass");
break;
case CSDI_CONFIG_INTER_DIR:
seq_puts(s, "Deinterlace, directional");
break;
default:
seq_puts(s, "<UNKNOWN>");
break;
}
seq_printf(s, "\n\t %-20s 0x%08X", "Config2", c->csdi.config2);
seq_printf(s, "\n\t %-20s 0x%08X", "DcdiConfig", c->csdi.dcdi_config);
}
static int hqvdp_dbg_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data;
int cmd, cmd_offset, infoxp70;
void *virt;
seq_printf(s, "%s: (vaddr = 0x%p)",
sti_plane_to_str(&hqvdp->plane), hqvdp->regs);
DBGFS_DUMP(HQVDP_MBX_IRQ_TO_XP70);
DBGFS_DUMP(HQVDP_MBX_INFO_HOST);
DBGFS_DUMP(HQVDP_MBX_IRQ_TO_HOST);
DBGFS_DUMP(HQVDP_MBX_INFO_XP70);
infoxp70 = readl(hqvdp->regs + HQVDP_MBX_INFO_XP70);
seq_puts(s, "\tFirmware state: ");
if (infoxp70 & INFO_XP70_FW_READY)
seq_puts(s, "idle and ready");
else if (infoxp70 & INFO_XP70_FW_PROCESSING)
seq_puts(s, "processing a picture");
else if (infoxp70 & INFO_XP70_FW_INITQUEUES)
seq_puts(s, "programming queues");
else
seq_puts(s, "NOT READY");
DBGFS_DUMP(HQVDP_MBX_SW_RESET_CTRL);
DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL1);
if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
& STARTUP_CTRL1_RST_DONE)
seq_puts(s, "\tReset is done");
else
seq_puts(s, "\tReset is NOT done");
DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL2);
if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2)
& STARTUP_CTRL2_FETCH_EN)
seq_puts(s, "\tFetch is enabled");
else
seq_puts(s, "\tFetch is NOT enabled");
DBGFS_DUMP(HQVDP_MBX_GP_STATUS);
DBGFS_DUMP(HQVDP_MBX_NEXT_CMD);
DBGFS_DUMP(HQVDP_MBX_CURRENT_CMD);
DBGFS_DUMP(HQVDP_MBX_SOFT_VSYNC);
if (!(readl(hqvdp->regs + HQVDP_MBX_SOFT_VSYNC) & 3))
seq_puts(s, "\tHW Vsync");
else
seq_puts(s, "\tSW Vsync ?!?!");
/* Last command */
cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
cmd_offset = sti_hqvdp_get_curr_cmd(hqvdp);
if (cmd_offset == -1) {
seq_puts(s, "\n\n Last command: unknown");
} else {
virt = hqvdp->hqvdp_cmd + cmd_offset;
seq_printf(s, "\n\n Last command: address @ 0x%x (0x%p)",
cmd, virt);
hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
}
/* Next command */
cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
cmd_offset = sti_hqvdp_get_next_cmd(hqvdp);
if (cmd_offset == -1) {
seq_puts(s, "\n\n Next command: unknown");
} else {
virt = hqvdp->hqvdp_cmd + cmd_offset;
seq_printf(s, "\n\n Next command address: @ 0x%x (0x%p)",
cmd, virt);
hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
}
seq_putc(s, '\n');
return 0;
}
static struct drm_info_list hqvdp_debugfs_files[] = {
{ "hqvdp", hqvdp_dbg_show, 0, NULL },
};
static int hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
hqvdp_debugfs_files[i].data = hqvdp;
return drm_debugfs_create_files(hqvdp_debugfs_files,
ARRAY_SIZE(hqvdp_debugfs_files),
minor->debugfs_root, minor);
}
/**
* sti_hqvdp_update_hvsrc
* @orient: horizontal or vertical
* @scale: scaling/zoom factor
* @hvsrc: the structure containing the LUT coef
*
* Update the Y and C Lut coef, as well as the shift param
*
* RETURNS:
* None.
*/
static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale,
struct sti_hqvdp_hvsrc *hvsrc)
{
const int *coef_c, *coef_y;
int shift_c, shift_y;
/* Get the appropriate coef tables */
if (scale < SCALE_MAX_FOR_LEG_LUT_F) {
coef_y = coef_lut_f_y_legacy;
coef_c = coef_lut_f_c_legacy;
shift_y = SHIFT_LUT_F_Y_LEGACY;
shift_c = SHIFT_LUT_F_C_LEGACY;
} else if (scale < SCALE_MAX_FOR_LEG_LUT_E) {
coef_y = coef_lut_e_y_legacy;
coef_c = coef_lut_e_c_legacy;
shift_y = SHIFT_LUT_E_Y_LEGACY;
shift_c = SHIFT_LUT_E_C_LEGACY;
} else if (scale < SCALE_MAX_FOR_LEG_LUT_D) {
coef_y = coef_lut_d_y_legacy;
coef_c = coef_lut_d_c_legacy;
shift_y = SHIFT_LUT_D_Y_LEGACY;
shift_c = SHIFT_LUT_D_C_LEGACY;
} else if (scale < SCALE_MAX_FOR_LEG_LUT_C) {
coef_y = coef_lut_c_y_legacy;
coef_c = coef_lut_c_c_legacy;
shift_y = SHIFT_LUT_C_Y_LEGACY;
shift_c = SHIFT_LUT_C_C_LEGACY;
} else if (scale == SCALE_MAX_FOR_LEG_LUT_C) {
coef_y = coef_c = coef_lut_b;
shift_y = shift_c = SHIFT_LUT_B;
} else {
coef_y = coef_c = coef_lut_a_legacy;
shift_y = shift_c = SHIFT_LUT_A_LEGACY;
}
if (orient == HVSRC_HORI) {
hvsrc->hori_shift = (shift_c << 16) | shift_y;
memcpy(hvsrc->yh_coef, coef_y, sizeof(hvsrc->yh_coef));
memcpy(hvsrc->ch_coef, coef_c, sizeof(hvsrc->ch_coef));
} else {
hvsrc->vert_shift = (shift_c << 16) | shift_y;
memcpy(hvsrc->yv_coef, coef_y, sizeof(hvsrc->yv_coef));
memcpy(hvsrc->cv_coef, coef_c, sizeof(hvsrc->cv_coef));
}
}
/**
* sti_hqvdp_check_hw_scaling
* @hqvdp: hqvdp pointer
* @mode: display mode with timing constraints
* @src_w: source width
* @src_h: source height
* @dst_w: destination width
* @dst_h: destination height
*
* Check if the HW is able to perform the scaling request
* The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where:
* Zy = OutputHeight / InputHeight
* LFW = (Tx * IPClock) / (MaxNbCycles * Cp)
* Tx : Total video mode horizontal resolution
* IPClock : HQVDP IP clock (Mhz)
* MaxNbCycles: max(InputWidth, OutputWidth)
* Cp: Video mode pixel clock (Mhz)
*
* RETURNS:
* True if the HW can scale.
*/
static bool sti_hqvdp_check_hw_scaling(struct sti_hqvdp *hqvdp,
struct drm_display_mode *mode,
int src_w, int src_h,
int dst_w, int dst_h)
{
unsigned long lfw;
unsigned int inv_zy;
lfw = mode->htotal * (clk_get_rate(hqvdp->clk) / 1000000);
lfw /= max(src_w, dst_w) * mode->clock / 1000;
inv_zy = DIV_ROUND_UP(src_h, dst_h);
return (inv_zy <= lfw) ? true : false;
}
/**
* sti_hqvdp_disable
* @hqvdp: hqvdp pointer
*
* Disables the HQVDP plane
*/
static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp)
{
int i;
DRM_DEBUG_DRIVER("%s\n", sti_plane_to_str(&hqvdp->plane));
/* Unregister VTG Vsync callback */
if (sti_vtg_unregister_client(hqvdp->vtg, &hqvdp->vtg_nb))
DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
/* Set next cmd to NULL */
writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
& INFO_XP70_FW_READY)
break;
msleep(POLL_DELAY_MS);
}
/* VTG can stop now */
clk_disable_unprepare(hqvdp->clk_pix_main);
if (i == POLL_MAX_ATTEMPT)
DRM_ERROR("XP70 could not revert to idle\n");
hqvdp->plane.status = STI_PLANE_DISABLED;
hqvdp->vtg_registered = false;
}
/**
* sti_vdp_vtg_cb
* @nb: notifier block
* @evt: event message
* @data: private data
*
* Handle VTG Vsync event, display pending bottom field
*
* RETURNS:
* 0 on success.
*/
static int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data)
{
struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb);
int btm_cmd_offset, top_cmd_offest;
struct sti_hqvdp_cmd *btm_cmd, *top_cmd;
if ((evt != VTG_TOP_FIELD_EVENT) && (evt != VTG_BOTTOM_FIELD_EVENT)) {
DRM_DEBUG_DRIVER("Unknown event\n");
return 0;
}
if (hqvdp->plane.status == STI_PLANE_FLUSHING) {
/* disable need to be synchronize on vsync event */
DRM_DEBUG_DRIVER("Vsync event received => disable %s\n",
sti_plane_to_str(&hqvdp->plane));
sti_hqvdp_disable(hqvdp);
}
if (hqvdp->btm_field_pending) {
/* Create the btm field command from the current one */
btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp);
if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) {
DRM_DEBUG_DRIVER("Warning: no cmd, will skip field\n");
return -EBUSY;
}
btm_cmd = hqvdp->hqvdp_cmd + btm_cmd_offset;
top_cmd = hqvdp->hqvdp_cmd + top_cmd_offest;
memcpy(btm_cmd, top_cmd, sizeof(*btm_cmd));
btm_cmd->top.config = TOP_CONFIG_INTER_BTM;
btm_cmd->top.current_luma +=
btm_cmd->top.luma_src_pitch / 2;
btm_cmd->top.current_chroma +=
btm_cmd->top.chroma_src_pitch / 2;
/* Post the command to mailbox */
writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset,
hqvdp->regs + HQVDP_MBX_NEXT_CMD);
hqvdp->btm_field_pending = false;
dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
__func__, hqvdp->hqvdp_cmd_paddr);
sti_plane_update_fps(&hqvdp->plane, false, true);
}
return 0;
}
static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
{
int size;
dma_addr_t dma_addr;
hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb;
/* Allocate memory for the VDP commands */
size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size,
&dma_addr,
GFP_KERNEL | GFP_DMA);
if (!hqvdp->hqvdp_cmd) {
DRM_ERROR("Failed to allocate memory for VDP cmd\n");
return;
}
hqvdp->hqvdp_cmd_paddr = (u32)dma_addr;
memset(hqvdp->hqvdp_cmd, 0, size);
}
static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp)
{
/* Configure Plugs (same for RD & WR) */
writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_RD_PLUG_PAGE_SIZE);
writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_RD_PLUG_MIN_OPC);
writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_RD_PLUG_MAX_OPC);
writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_RD_PLUG_MAX_CHK);
writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_RD_PLUG_MAX_MSG);
writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_RD_PLUG_MIN_SPACE);
writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_RD_PLUG_CONTROL);
writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_WR_PLUG_PAGE_SIZE);
writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_WR_PLUG_MIN_OPC);
writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_WR_PLUG_MAX_OPC);
writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_WR_PLUG_MAX_CHK);
writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_WR_PLUG_MAX_MSG);
writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_WR_PLUG_MIN_SPACE);
writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_WR_PLUG_CONTROL);
}
/**
* sti_hqvdp_start_xp70
* @hqvdp: hqvdp pointer
*
* Run the xP70 initialization sequence
*/
static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp)
{
const struct firmware *firmware;
u32 *fw_rd_plug, *fw_wr_plug, *fw_pmem, *fw_dmem;
u8 *data;
int i;
struct fw_header {
int rd_size;
int wr_size;
int pmem_size;
int dmem_size;
} *header;
DRM_DEBUG_DRIVER("\n");
if (hqvdp->xp70_initialized) {
DRM_DEBUG_DRIVER("HQVDP XP70 already initialized\n");
return;
}
/* Request firmware */
if (request_firmware(&firmware, HQVDP_FMW_NAME, hqvdp->dev)) {
DRM_ERROR("Can't get HQVDP firmware\n");
return;
}
/* Check firmware parts */
if (!firmware) {
DRM_ERROR("Firmware not available\n");
return;
}
header = (struct fw_header *)firmware->data;
if (firmware->size < sizeof(*header)) {
DRM_ERROR("Invalid firmware size (%d)\n", firmware->size);
goto out;
}
if ((sizeof(*header) + header->rd_size + header->wr_size +
header->pmem_size + header->dmem_size) != firmware->size) {
DRM_ERROR("Invalid fmw structure (%d+%d+%d+%d+%d != %d)\n",
sizeof(*header), header->rd_size, header->wr_size,
header->pmem_size, header->dmem_size,
firmware->size);
goto out;
}
data = (u8 *)firmware->data;
data += sizeof(*header);
fw_rd_plug = (void *)data;
data += header->rd_size;
fw_wr_plug = (void *)data;
data += header->wr_size;
fw_pmem = (void *)data;
data += header->pmem_size;
fw_dmem = (void *)data;
/* Enable clock */
if (clk_prepare_enable(hqvdp->clk))
DRM_ERROR("Failed to prepare/enable HQVDP clk\n");
/* Reset */
writel(SW_RESET_CTRL_FULL, hqvdp->regs + HQVDP_MBX_SW_RESET_CTRL);
for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
& STARTUP_CTRL1_RST_DONE)
break;
msleep(POLL_DELAY_MS);
}
if (i == POLL_MAX_ATTEMPT) {
DRM_ERROR("Could not reset\n");
clk_disable_unprepare(hqvdp->clk);
goto out;
}
/* Init Read & Write plugs */
for (i = 0; i < header->rd_size / 4; i++)
writel(fw_rd_plug[i], hqvdp->regs + HQVDP_RD_PLUG + i * 4);
for (i = 0; i < header->wr_size / 4; i++)
writel(fw_wr_plug[i], hqvdp->regs + HQVDP_WR_PLUG + i * 4);
sti_hqvdp_init_plugs(hqvdp);
/* Authorize Idle Mode */
writel(STARTUP_CTRL1_AUTH_IDLE, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1);
/* Prevent VTG interruption during the boot */
writel(SOFT_VSYNC_SW_CTRL_IRQ, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
/* Download PMEM & DMEM */
for (i = 0; i < header->pmem_size / 4; i++)
writel(fw_pmem[i], hqvdp->regs + HQVDP_PMEM + i * 4);
for (i = 0; i < header->dmem_size / 4; i++)
writel(fw_dmem[i], hqvdp->regs + HQVDP_DMEM + i * 4);
/* Enable fetch */
writel(STARTUP_CTRL2_FETCH_EN, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2);
/* Wait end of boot */
for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
& INFO_XP70_FW_READY)
break;
msleep(POLL_DELAY_MS);
}
if (i == POLL_MAX_ATTEMPT) {
DRM_ERROR("Could not boot\n");
clk_disable_unprepare(hqvdp->clk);
goto out;
}
/* Launch Vsync */
writel(SOFT_VSYNC_HW, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
DRM_INFO("HQVDP XP70 initialized\n");
hqvdp->xp70_initialized = true;
out:
release_firmware(firmware);
}
static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
struct drm_plane_state *state)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
struct drm_crtc *crtc = state->crtc;
struct drm_framebuffer *fb = state->fb;
struct drm_crtc_state *crtc_state;
struct drm_display_mode *mode;
int dst_x, dst_y, dst_w, dst_h;
int src_x, src_y, src_w, src_h;
/* no need for further checks if the plane is being disabled */
if (!crtc || !fb)
return 0;
crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
mode = &crtc_state->mode;
dst_x = state->crtc_x;
dst_y = state->crtc_y;
dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
/* src_x are in 16.16 format */
src_x = state->src_x >> 16;
src_y = state->src_y >> 16;
src_w = state->src_w >> 16;
src_h = state->src_h >> 16;
if (mode->clock && !sti_hqvdp_check_hw_scaling(hqvdp, mode,
src_w, src_h,
dst_w, dst_h)) {
DRM_ERROR("Scaling beyond HW capabilities\n");
return -EINVAL;
}
if (!drm_fb_cma_get_gem_obj(fb, 0)) {
DRM_ERROR("Can't get CMA GEM object for fb\n");
return -EINVAL;
}
/*
* Input / output size
* Align to upper even value
*/
dst_w = ALIGN(dst_w, 2);
dst_h = ALIGN(dst_h, 2);
if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
(src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
(dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
(dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
src_w, src_h,
dst_w, dst_h);
return -EINVAL;
}
if (!hqvdp->xp70_initialized)
/* Start HQVDP XP70 coprocessor */
sti_hqvdp_start_xp70(hqvdp);
if (!hqvdp->vtg_registered) {
/* Prevent VTG shutdown */
if (clk_prepare_enable(hqvdp->clk_pix_main)) {
DRM_ERROR("Failed to prepare/enable pix main clk\n");
return -EINVAL;
}
/* Register VTG Vsync callback to handle bottom fields */
if (sti_vtg_register_client(hqvdp->vtg,
&hqvdp->vtg_nb,
crtc)) {
DRM_ERROR("Cannot register VTG notifier\n");
clk_disable_unprepare(hqvdp->clk_pix_main);
return -EINVAL;
}
hqvdp->vtg_registered = true;
}
DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
drm_plane->base.id, sti_plane_to_str(plane));
DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
sti_plane_to_str(plane),
dst_w, dst_h, dst_x, dst_y,
src_w, src_h, src_x, src_y);
return 0;
}
static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane,
struct drm_plane_state *oldstate)
{
struct drm_plane_state *state = drm_plane->state;
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
struct drm_crtc *crtc = state->crtc;
struct drm_framebuffer *fb = state->fb;
struct drm_display_mode *mode;
int dst_x, dst_y, dst_w, dst_h;
int src_x, src_y, src_w, src_h;
struct drm_gem_cma_object *cma_obj;
struct sti_hqvdp_cmd *cmd;
int scale_h, scale_v;
int cmd_offset;
if (!crtc || !fb)
return;
if ((oldstate->fb == state->fb) &&
(oldstate->crtc_x == state->crtc_x) &&
(oldstate->crtc_y == state->crtc_y) &&
(oldstate->crtc_w == state->crtc_w) &&
(oldstate->crtc_h == state->crtc_h) &&
(oldstate->src_x == state->src_x) &&
(oldstate->src_y == state->src_y) &&
(oldstate->src_w == state->src_w) &&
(oldstate->src_h == state->src_h)) {
/* No change since last update, do not post cmd */
DRM_DEBUG_DRIVER("No change, not posting cmd\n");
plane->status = STI_PLANE_UPDATED;
return;
}
mode = &crtc->mode;
dst_x = state->crtc_x;
dst_y = state->crtc_y;
dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
/* src_x are in 16.16 format */
src_x = state->src_x >> 16;
src_y = state->src_y >> 16;
src_w = state->src_w >> 16;
src_h = state->src_h >> 16;
cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
if (cmd_offset == -1) {
DRM_DEBUG_DRIVER("Warning: no cmd, will skip frame\n");
return;
}
cmd = hqvdp->hqvdp_cmd + cmd_offset;
/* Static parameters, defaulting to progressive mode */
cmd->top.config = TOP_CONFIG_PROGRESSIVE;
cmd->top.mem_format = TOP_MEM_FORMAT_DFLT;
cmd->hvsrc.param_ctrl = HVSRC_PARAM_CTRL_DFLT;
cmd->csdi.config = CSDI_CONFIG_PROG;
/* VC1RE, FMD bypassed : keep everything set to 0
* IQI/P2I bypassed */
cmd->iqi.config = IQI_CONFIG_DFLT;
cmd->iqi.con_bri = IQI_CON_BRI_DFLT;
cmd->iqi.sat_gain = IQI_SAT_GAIN_DFLT;
cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT;
cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
(char *)&fb->format->format,
(unsigned long)cma_obj->paddr);
/* Buffer planes address */
cmd->top.current_luma = (u32)cma_obj->paddr + fb->offsets[0];
cmd->top.current_chroma = (u32)cma_obj->paddr + fb->offsets[1];
/* Pitches */
cmd->top.luma_processed_pitch = fb->pitches[0];
cmd->top.luma_src_pitch = fb->pitches[0];
cmd->top.chroma_processed_pitch = fb->pitches[1];
cmd->top.chroma_src_pitch = fb->pitches[1];
/* Input / output size
* Align to upper even value */
dst_w = ALIGN(dst_w, 2);
dst_h = ALIGN(dst_h, 2);
cmd->top.input_viewport_size = src_h << 16 | src_w;
cmd->top.input_frame_size = src_h << 16 | src_w;
cmd->hvsrc.output_picture_size = dst_h << 16 | dst_w;
cmd->top.input_viewport_ori = src_y << 16 | src_x;
/* Handle interlaced */
if (fb->flags & DRM_MODE_FB_INTERLACED) {
/* Top field to display */
cmd->top.config = TOP_CONFIG_INTER_TOP;
/* Update pitches and vert size */
cmd->top.input_frame_size = (src_h / 2) << 16 | src_w;
cmd->top.luma_processed_pitch *= 2;
cmd->top.luma_src_pitch *= 2;
cmd->top.chroma_processed_pitch *= 2;
cmd->top.chroma_src_pitch *= 2;
/* Enable directional deinterlacing processing */
cmd->csdi.config = CSDI_CONFIG_INTER_DIR;
cmd->csdi.config2 = CSDI_CONFIG2_DFLT;
cmd->csdi.dcdi_config = CSDI_DCDI_CONFIG_DFLT;
}
/* Update hvsrc lut coef */
scale_h = SCALE_FACTOR * dst_w / src_w;
sti_hqvdp_update_hvsrc(HVSRC_HORI, scale_h, &cmd->hvsrc);
scale_v = SCALE_FACTOR * dst_h / src_h;
sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc);
writel(hqvdp->hqvdp_cmd_paddr + cmd_offset,
hqvdp->regs + HQVDP_MBX_NEXT_CMD);
/* Interlaced : get ready to display the bottom field at next Vsync */
if (fb->flags & DRM_MODE_FB_INTERLACED)
hqvdp->btm_field_pending = true;
dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
__func__, hqvdp->hqvdp_cmd_paddr + cmd_offset);
sti_plane_update_fps(plane, true, true);
plane->status = STI_PLANE_UPDATED;
}
static void sti_hqvdp_atomic_disable(struct drm_plane *drm_plane,
struct drm_plane_state *oldstate)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
if (!oldstate->crtc) {
DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
drm_plane->base.id);
return;
}
DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
oldstate->crtc->base.id,
sti_mixer_to_str(to_sti_mixer(oldstate->crtc)),
drm_plane->base.id, sti_plane_to_str(plane));
plane->status = STI_PLANE_DISABLING;
}
static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = {
.atomic_check = sti_hqvdp_atomic_check,
.atomic_update = sti_hqvdp_atomic_update,
.atomic_disable = sti_hqvdp_atomic_disable,
};
static void sti_hqvdp_destroy(struct drm_plane *drm_plane)
{
DRM_DEBUG_DRIVER("\n");
drm_plane_helper_disable(drm_plane);
drm_plane_cleanup(drm_plane);
}
static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
return hqvdp_debugfs_init(hqvdp, drm_plane->dev->primary);
}
static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = sti_hqvdp_destroy,
.set_property = drm_atomic_helper_plane_set_property,
.reset = sti_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.late_register = sti_hqvdp_late_register,
};
static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev,
struct device *dev, int desc)
{
struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
int res;
hqvdp->plane.desc = desc;
hqvdp->plane.status = STI_PLANE_DISABLED;
sti_hqvdp_init(hqvdp);
res = drm_universal_plane_init(drm_dev, &hqvdp->plane.drm_plane, 1,
&sti_hqvdp_plane_helpers_funcs,
hqvdp_supported_formats,
ARRAY_SIZE(hqvdp_supported_formats),
DRM_PLANE_TYPE_OVERLAY, NULL);
if (res) {
DRM_ERROR("Failed to initialize universal plane\n");
return NULL;
}
drm_plane_helper_add(&hqvdp->plane.drm_plane, &sti_hqvdp_helpers_funcs);
sti_plane_init_property(&hqvdp->plane, DRM_PLANE_TYPE_OVERLAY);
return &hqvdp->plane.drm_plane;
}
static int sti_hqvdp_bind(struct device *dev, struct device *master, void *data)
{
struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
struct drm_plane *plane;
DRM_DEBUG_DRIVER("\n");
hqvdp->drm_dev = drm_dev;
/* Create HQVDP plane once xp70 is initialized */
plane = sti_hqvdp_create(drm_dev, hqvdp->dev, STI_HQVDP_0);
if (!plane)
DRM_ERROR("Can't create HQVDP plane\n");
return 0;
}
static void sti_hqvdp_unbind(struct device *dev,
struct device *master, void *data)
{
/* do nothing */
}
static const struct component_ops sti_hqvdp_ops = {
.bind = sti_hqvdp_bind,
.unbind = sti_hqvdp_unbind,
};
static int sti_hqvdp_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *vtg_np;
struct sti_hqvdp *hqvdp;
struct resource *res;
DRM_DEBUG_DRIVER("\n");
hqvdp = devm_kzalloc(dev, sizeof(*hqvdp), GFP_KERNEL);
if (!hqvdp) {
DRM_ERROR("Failed to allocate HQVDP context\n");
return -ENOMEM;
}
hqvdp->dev = dev;
/* Get Memory resources */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
DRM_ERROR("Get memory resource failed\n");
return -ENXIO;
}
hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res));
if (!hqvdp->regs) {
DRM_ERROR("Register mapping failed\n");
return -ENXIO;
}
/* Get clock resources */
hqvdp->clk = devm_clk_get(dev, "hqvdp");
hqvdp->clk_pix_main = devm_clk_get(dev, "pix_main");
if (IS_ERR(hqvdp->clk) || IS_ERR(hqvdp->clk_pix_main)) {
DRM_ERROR("Cannot get clocks\n");
return -ENXIO;
}
/* Get reset resources */
hqvdp->reset = devm_reset_control_get(dev, "hqvdp");
if (!IS_ERR(hqvdp->reset))
reset_control_deassert(hqvdp->reset);
vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0);
if (vtg_np)
hqvdp->vtg = of_vtg_find(vtg_np);
of_node_put(vtg_np);
platform_set_drvdata(pdev, hqvdp);
return component_add(&pdev->dev, &sti_hqvdp_ops);
}
static int sti_hqvdp_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &sti_hqvdp_ops);
return 0;
}
static const struct of_device_id hqvdp_of_match[] = {
{ .compatible = "st,stih407-hqvdp", },
{ /* end node */ }
};
MODULE_DEVICE_TABLE(of, hqvdp_of_match);
struct platform_driver sti_hqvdp_driver = {
.driver = {
.name = "sti-hqvdp",
.owner = THIS_MODULE,
.of_match_table = hqvdp_of_match,
},
.probe = sti_hqvdp_probe,
.remove = sti_hqvdp_remove,
};
MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
MODULE_LICENSE("GPL");
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