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linux-zen-server/drivers/gpu/drm/exynos/exynos_drm_fimc.c

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Initial commit
2023-08-30 17:53:23 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2012 Samsung Electronics Co.Ltd
* Authors:
* Eunchul Kim <chulspro.kim@samsung.com>
* Jinyoung Jeon <jy0.jeon@samsung.com>
* Sangmin Lee <lsmin.lee@samsung.com>
*/
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/spinlock.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_print.h>
#include <drm/exynos_drm.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_ipp.h"
#include "regs-fimc.h"
/*
* FIMC stands for Fully Interactive Mobile Camera and
* supports image scaler/rotator and input/output DMA operations.
* input DMA reads image data from the memory.
* output DMA writes image data to memory.
* FIMC supports image rotation and image effect functions.
*/
#define FIMC_MAX_DEVS 4
#define FIMC_MAX_SRC 2
#define FIMC_MAX_DST 32
#define FIMC_SHFACTOR 10
#define FIMC_BUF_STOP 1
#define FIMC_BUF_START 2
#define FIMC_WIDTH_ITU_709 1280
#define FIMC_AUTOSUSPEND_DELAY 2000
static unsigned int fimc_mask = 0xc;
module_param_named(fimc_devs, fimc_mask, uint, 0644);
MODULE_PARM_DESC(fimc_devs, "Alias mask for assigning FIMC devices to Exynos DRM");
#define get_fimc_context(dev) dev_get_drvdata(dev)
enum {
FIMC_CLK_LCLK,
FIMC_CLK_GATE,
FIMC_CLK_WB_A,
FIMC_CLK_WB_B,
FIMC_CLKS_MAX
};
static const char * const fimc_clock_names[] = {
[FIMC_CLK_LCLK] = "sclk_fimc",
[FIMC_CLK_GATE] = "fimc",
[FIMC_CLK_WB_A] = "pxl_async0",
[FIMC_CLK_WB_B] = "pxl_async1",
};
/*
* A structure of scaler.
*
* @range: narrow, wide.
* @bypass: unused scaler path.
* @up_h: horizontal scale up.
* @up_v: vertical scale up.
* @hratio: horizontal ratio.
* @vratio: vertical ratio.
*/
struct fimc_scaler {
bool range;
bool bypass;
bool up_h;
bool up_v;
u32 hratio;
u32 vratio;
};
/*
* A structure of fimc context.
*
* @regs: memory mapped io registers.
* @lock: locking of operations.
* @clocks: fimc clocks.
* @sc: scaler infomations.
* @pol: porarity of writeback.
* @id: fimc id.
* @irq: irq number.
*/
struct fimc_context {
struct exynos_drm_ipp ipp;
struct drm_device *drm_dev;
void *dma_priv;
struct device *dev;
struct exynos_drm_ipp_task *task;
struct exynos_drm_ipp_formats *formats;
unsigned int num_formats;
void __iomem *regs;
spinlock_t lock;
struct clk *clocks[FIMC_CLKS_MAX];
struct fimc_scaler sc;
int id;
int irq;
};
static u32 fimc_read(struct fimc_context *ctx, u32 reg)
{
return readl(ctx->regs + reg);
}
static void fimc_write(struct fimc_context *ctx, u32 val, u32 reg)
{
writel(val, ctx->regs + reg);
}
static void fimc_set_bits(struct fimc_context *ctx, u32 reg, u32 bits)
{
void __iomem *r = ctx->regs + reg;
writel(readl(r) | bits, r);
}
static void fimc_clear_bits(struct fimc_context *ctx, u32 reg, u32 bits)
{
void __iomem *r = ctx->regs + reg;
writel(readl(r) & ~bits, r);
}
static void fimc_sw_reset(struct fimc_context *ctx)
{
u32 cfg;
/* stop dma operation */
cfg = fimc_read(ctx, EXYNOS_CISTATUS);
if (EXYNOS_CISTATUS_GET_ENVID_STATUS(cfg))
fimc_clear_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
fimc_set_bits(ctx, EXYNOS_CISRCFMT, EXYNOS_CISRCFMT_ITU601_8BIT);
/* disable image capture */
fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
/* s/w reset */
fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
/* s/w reset complete */
fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
/* reset sequence */
fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
}
static void fimc_set_type_ctrl(struct fimc_context *ctx)
{
u32 cfg;
cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
cfg &= ~(EXYNOS_CIGCTRL_TESTPATTERN_MASK |
EXYNOS_CIGCTRL_SELCAM_ITU_MASK |
EXYNOS_CIGCTRL_SELCAM_MIPI_MASK |
EXYNOS_CIGCTRL_SELCAM_FIMC_MASK |
EXYNOS_CIGCTRL_SELWB_CAMIF_MASK |
EXYNOS_CIGCTRL_SELWRITEBACK_MASK);
cfg |= (EXYNOS_CIGCTRL_SELCAM_ITU_A |
EXYNOS_CIGCTRL_SELWRITEBACK_A |
EXYNOS_CIGCTRL_SELCAM_MIPI_A |
EXYNOS_CIGCTRL_SELCAM_FIMC_ITU);
fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
}
static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "enable[%d]\n", enable);
cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
if (enable)
cfg |= EXYNOS_CIGCTRL_CAM_JPEG;
else
cfg &= ~EXYNOS_CIGCTRL_CAM_JPEG;
fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
}
static void fimc_mask_irq(struct fimc_context *ctx, bool enable)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "enable[%d]\n", enable);
cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
if (enable) {
cfg &= ~EXYNOS_CIGCTRL_IRQ_OVFEN;
cfg |= EXYNOS_CIGCTRL_IRQ_ENABLE | EXYNOS_CIGCTRL_IRQ_LEVEL;
} else
cfg &= ~EXYNOS_CIGCTRL_IRQ_ENABLE;
fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
}
static void fimc_clear_irq(struct fimc_context *ctx)
{
fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_CLR);
}
static bool fimc_check_ovf(struct fimc_context *ctx)
{
u32 status, flag;
status = fimc_read(ctx, EXYNOS_CISTATUS);
flag = EXYNOS_CISTATUS_OVFIY | EXYNOS_CISTATUS_OVFICB |
EXYNOS_CISTATUS_OVFICR;
DRM_DEV_DEBUG_KMS(ctx->dev, "flag[0x%x]\n", flag);
if (status & flag) {
fimc_set_bits(ctx, EXYNOS_CIWDOFST,
EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
EXYNOS_CIWDOFST_CLROVFICR);
DRM_DEV_ERROR(ctx->dev,
"occurred overflow at %d, status 0x%x.\n",
ctx->id, status);
return true;
}
return false;
}
static bool fimc_check_frame_end(struct fimc_context *ctx)
{
u32 cfg;
cfg = fimc_read(ctx, EXYNOS_CISTATUS);
DRM_DEV_DEBUG_KMS(ctx->dev, "cfg[0x%x]\n", cfg);
if (!(cfg & EXYNOS_CISTATUS_FRAMEEND))
return false;
cfg &= ~(EXYNOS_CISTATUS_FRAMEEND);
fimc_write(ctx, cfg, EXYNOS_CISTATUS);
return true;
}
static int fimc_get_buf_id(struct fimc_context *ctx)
{
u32 cfg;
int frame_cnt, buf_id;
cfg = fimc_read(ctx, EXYNOS_CISTATUS2);
frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg);
if (frame_cnt == 0)
frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg);
DRM_DEV_DEBUG_KMS(ctx->dev, "present[%d]before[%d]\n",
EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg),
EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg));
if (frame_cnt == 0) {
DRM_DEV_ERROR(ctx->dev, "failed to get frame count.\n");
return -EIO;
}
buf_id = frame_cnt - 1;
DRM_DEV_DEBUG_KMS(ctx->dev, "buf_id[%d]\n", buf_id);
return buf_id;
}
static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "enable[%d]\n", enable);
cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
if (enable)
cfg |= EXYNOS_CIOCTRL_LASTENDEN;
else
cfg &= ~EXYNOS_CIOCTRL_LASTENDEN;
fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
}
static void fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
/* RGB */
cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
cfg &= ~EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK;
switch (fmt) {
case DRM_FORMAT_RGB565:
cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB565;
fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
return;
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB888;
fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
return;
default:
/* bypass */
break;
}
/* YUV */
cfg = fimc_read(ctx, EXYNOS_MSCTRL);
cfg &= ~(EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK |
EXYNOS_MSCTRL_C_INT_IN_2PLANE |
EXYNOS_MSCTRL_ORDER422_YCBYCR);
switch (fmt) {
case DRM_FORMAT_YUYV:
cfg |= EXYNOS_MSCTRL_ORDER422_YCBYCR;
break;
case DRM_FORMAT_YVYU:
cfg |= EXYNOS_MSCTRL_ORDER422_YCRYCB;
break;
case DRM_FORMAT_UYVY:
cfg |= EXYNOS_MSCTRL_ORDER422_CBYCRY;
break;
case DRM_FORMAT_VYUY:
case DRM_FORMAT_YUV444:
cfg |= EXYNOS_MSCTRL_ORDER422_CRYCBY;
break;
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV61:
cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CRCB |
EXYNOS_MSCTRL_C_INT_IN_2PLANE);
break;
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
EXYNOS_MSCTRL_C_INT_IN_2PLANE);
break;
}
fimc_write(ctx, cfg, EXYNOS_MSCTRL);
}
static void fimc_src_set_fmt(struct fimc_context *ctx, u32 fmt, bool tiled)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
cfg = fimc_read(ctx, EXYNOS_MSCTRL);
cfg &= ~EXYNOS_MSCTRL_INFORMAT_RGB;
switch (fmt) {
case DRM_FORMAT_RGB565:
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
cfg |= EXYNOS_MSCTRL_INFORMAT_RGB;
break;
case DRM_FORMAT_YUV444:
cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
break;
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE;
break;
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_YUV422:
cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422;
break;
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
break;
}
fimc_write(ctx, cfg, EXYNOS_MSCTRL);
cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
if (tiled)
cfg |= EXYNOS_CIDMAPARAM_R_MODE_64X32;
else
cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
fimc_src_set_fmt_order(ctx, fmt);
}
static void fimc_src_set_transf(struct fimc_context *ctx, unsigned int rotation)
{
unsigned int degree = rotation & DRM_MODE_ROTATE_MASK;
u32 cfg1, cfg2;
DRM_DEV_DEBUG_KMS(ctx->dev, "rotation[%x]\n", rotation);
cfg1 = fimc_read(ctx, EXYNOS_MSCTRL);
cfg1 &= ~(EXYNOS_MSCTRL_FLIP_X_MIRROR |
EXYNOS_MSCTRL_FLIP_Y_MIRROR);
cfg2 = fimc_read(ctx, EXYNOS_CITRGFMT);
cfg2 &= ~EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
switch (degree) {
case DRM_MODE_ROTATE_0:
if (rotation & DRM_MODE_REFLECT_X)
cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
break;
case DRM_MODE_ROTATE_90:
cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
if (rotation & DRM_MODE_REFLECT_X)
cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
break;
case DRM_MODE_ROTATE_180:
cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
EXYNOS_MSCTRL_FLIP_Y_MIRROR);
if (rotation & DRM_MODE_REFLECT_X)
cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
break;
case DRM_MODE_ROTATE_270:
cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
EXYNOS_MSCTRL_FLIP_Y_MIRROR);
cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
if (rotation & DRM_MODE_REFLECT_X)
cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
break;
}
fimc_write(ctx, cfg1, EXYNOS_MSCTRL);
fimc_write(ctx, cfg2, EXYNOS_CITRGFMT);
}
static void fimc_set_window(struct fimc_context *ctx,
struct exynos_drm_ipp_buffer *buf)
{
unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
u32 cfg, h1, h2, v1, v2;
/* cropped image */
h1 = buf->rect.x;
h2 = real_width - buf->rect.w - buf->rect.x;
v1 = buf->rect.y;
v2 = buf->buf.height - buf->rect.h - buf->rect.y;
DRM_DEV_DEBUG_KMS(ctx->dev, "x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
buf->rect.x, buf->rect.y, buf->rect.w, buf->rect.h,
real_width, buf->buf.height);
DRM_DEV_DEBUG_KMS(ctx->dev, "h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1,
v2);
/*
* set window offset 1, 2 size
* check figure 43-21 in user manual
*/
cfg = fimc_read(ctx, EXYNOS_CIWDOFST);
cfg &= ~(EXYNOS_CIWDOFST_WINHOROFST_MASK |
EXYNOS_CIWDOFST_WINVEROFST_MASK);
cfg |= (EXYNOS_CIWDOFST_WINHOROFST(h1) |
EXYNOS_CIWDOFST_WINVEROFST(v1));
cfg |= EXYNOS_CIWDOFST_WINOFSEN;
fimc_write(ctx, cfg, EXYNOS_CIWDOFST);
cfg = (EXYNOS_CIWDOFST2_WINHOROFST2(h2) |
EXYNOS_CIWDOFST2_WINVEROFST2(v2));
fimc_write(ctx, cfg, EXYNOS_CIWDOFST2);
}
static void fimc_src_set_size(struct fimc_context *ctx,
struct exynos_drm_ipp_buffer *buf)
{
unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "hsize[%d]vsize[%d]\n", real_width,
buf->buf.height);
/* original size */
cfg = (EXYNOS_ORGISIZE_HORIZONTAL(real_width) |
EXYNOS_ORGISIZE_VERTICAL(buf->buf.height));
fimc_write(ctx, cfg, EXYNOS_ORGISIZE);
DRM_DEV_DEBUG_KMS(ctx->dev, "x[%d]y[%d]w[%d]h[%d]\n", buf->rect.x,
buf->rect.y, buf->rect.w, buf->rect.h);
/* set input DMA image size */
cfg = fimc_read(ctx, EXYNOS_CIREAL_ISIZE);
cfg &= ~(EXYNOS_CIREAL_ISIZE_HEIGHT_MASK |
EXYNOS_CIREAL_ISIZE_WIDTH_MASK);
cfg |= (EXYNOS_CIREAL_ISIZE_WIDTH(buf->rect.w) |
EXYNOS_CIREAL_ISIZE_HEIGHT(buf->rect.h));
fimc_write(ctx, cfg, EXYNOS_CIREAL_ISIZE);
/*
* set input FIFO image size
* for now, we support only ITU601 8 bit mode
*/
cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
EXYNOS_CISRCFMT_SOURCEHSIZE(real_width) |
EXYNOS_CISRCFMT_SOURCEVSIZE(buf->buf.height));
fimc_write(ctx, cfg, EXYNOS_CISRCFMT);
/* offset Y(RGB), Cb, Cr */
cfg = (EXYNOS_CIIYOFF_HORIZONTAL(buf->rect.x) |
EXYNOS_CIIYOFF_VERTICAL(buf->rect.y));
fimc_write(ctx, cfg, EXYNOS_CIIYOFF);
cfg = (EXYNOS_CIICBOFF_HORIZONTAL(buf->rect.x) |
EXYNOS_CIICBOFF_VERTICAL(buf->rect.y));
fimc_write(ctx, cfg, EXYNOS_CIICBOFF);
cfg = (EXYNOS_CIICROFF_HORIZONTAL(buf->rect.x) |
EXYNOS_CIICROFF_VERTICAL(buf->rect.y));
fimc_write(ctx, cfg, EXYNOS_CIICROFF);
fimc_set_window(ctx, buf);
}
static void fimc_src_set_addr(struct fimc_context *ctx,
struct exynos_drm_ipp_buffer *buf)
{
fimc_write(ctx, buf->dma_addr[0], EXYNOS_CIIYSA(0));
fimc_write(ctx, buf->dma_addr[1], EXYNOS_CIICBSA(0));
fimc_write(ctx, buf->dma_addr[2], EXYNOS_CIICRSA(0));
}
static void fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
/* RGB */
cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
cfg &= ~EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK;
switch (fmt) {
case DRM_FORMAT_RGB565:
cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565;
fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
return;
case DRM_FORMAT_RGB888:
cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888;
fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
return;
case DRM_FORMAT_XRGB8888:
cfg |= (EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888 |
EXYNOS_CISCCTRL_EXTRGB_EXTENSION);
fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
break;
default:
/* bypass */
break;
}
/* YUV */
cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
cfg &= ~(EXYNOS_CIOCTRL_ORDER2P_MASK |
EXYNOS_CIOCTRL_ORDER422_MASK |
EXYNOS_CIOCTRL_YCBCR_PLANE_MASK);
switch (fmt) {
case DRM_FORMAT_XRGB8888:
cfg |= EXYNOS_CIOCTRL_ALPHA_OUT;
break;
case DRM_FORMAT_YUYV:
cfg |= EXYNOS_CIOCTRL_ORDER422_YCBYCR;
break;
case DRM_FORMAT_YVYU:
cfg |= EXYNOS_CIOCTRL_ORDER422_YCRYCB;
break;
case DRM_FORMAT_UYVY:
cfg |= EXYNOS_CIOCTRL_ORDER422_CBYCRY;
break;
case DRM_FORMAT_VYUY:
cfg |= EXYNOS_CIOCTRL_ORDER422_CRYCBY;
break;
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV61:
cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB;
cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
break;
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
break;
}
fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
}
static void fimc_dst_set_fmt(struct fimc_context *ctx, u32 fmt, bool tiled)
{
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "fmt[0x%x]\n", fmt);
cfg = fimc_read(ctx, EXYNOS_CIEXTEN);
if (fmt == DRM_FORMAT_AYUV) {
cfg |= EXYNOS_CIEXTEN_YUV444_OUT;
fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
} else {
cfg &= ~EXYNOS_CIEXTEN_YUV444_OUT;
fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
cfg &= ~EXYNOS_CITRGFMT_OUTFORMAT_MASK;
switch (fmt) {
case DRM_FORMAT_RGB565:
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
cfg |= EXYNOS_CITRGFMT_OUTFORMAT_RGB;
break;
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE;
break;
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_YUV422:
cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422;
break;
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
break;
}
fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
}
cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
if (tiled)
cfg |= EXYNOS_CIDMAPARAM_W_MODE_64X32;
else
cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
fimc_dst_set_fmt_order(ctx, fmt);
}
static void fimc_dst_set_transf(struct fimc_context *ctx, unsigned int rotation)
{
unsigned int degree = rotation & DRM_MODE_ROTATE_MASK;
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "rotation[0x%x]\n", rotation);
cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
cfg &= ~EXYNOS_CITRGFMT_FLIP_MASK;
cfg &= ~EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
switch (degree) {
case DRM_MODE_ROTATE_0:
if (rotation & DRM_MODE_REFLECT_X)
cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
break;
case DRM_MODE_ROTATE_90:
cfg |= EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
if (rotation & DRM_MODE_REFLECT_X)
cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
break;
case DRM_MODE_ROTATE_180:
cfg |= (EXYNOS_CITRGFMT_FLIP_X_MIRROR |
EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
if (rotation & DRM_MODE_REFLECT_X)
cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
break;
case DRM_MODE_ROTATE_270:
cfg |= (EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE |
EXYNOS_CITRGFMT_FLIP_X_MIRROR |
EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
if (rotation & DRM_MODE_REFLECT_X)
cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
if (rotation & DRM_MODE_REFLECT_Y)
cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
break;
}
fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
}
static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc,
struct drm_exynos_ipp_task_rect *src,
struct drm_exynos_ipp_task_rect *dst)
{
u32 cfg, cfg_ext, shfactor;
u32 pre_dst_width, pre_dst_height;
u32 hfactor, vfactor;
int ret = 0;
u32 src_w, src_h, dst_w, dst_h;
cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
if (cfg_ext & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) {
src_w = src->h;
src_h = src->w;
} else {
src_w = src->w;
src_h = src->h;
}
if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) {
dst_w = dst->h;
dst_h = dst->w;
} else {
dst_w = dst->w;
dst_h = dst->h;
}
/* fimc_ippdrv_check_property assures that dividers are not null */
hfactor = fls(src_w / dst_w / 2);
if (hfactor > FIMC_SHFACTOR / 2) {
dev_err(ctx->dev, "failed to get ratio horizontal.\n");
return -EINVAL;
}
vfactor = fls(src_h / dst_h / 2);
if (vfactor > FIMC_SHFACTOR / 2) {
dev_err(ctx->dev, "failed to get ratio vertical.\n");
return -EINVAL;
}
pre_dst_width = src_w >> hfactor;
pre_dst_height = src_h >> vfactor;
DRM_DEV_DEBUG_KMS(ctx->dev, "pre_dst_width[%d]pre_dst_height[%d]\n",
pre_dst_width, pre_dst_height);
DRM_DEV_DEBUG_KMS(ctx->dev, "hfactor[%d]vfactor[%d]\n", hfactor,
vfactor);
sc->hratio = (src_w << 14) / (dst_w << hfactor);
sc->vratio = (src_h << 14) / (dst_h << vfactor);
sc->up_h = (dst_w >= src_w);
sc->up_v = (dst_h >= src_h);
DRM_DEV_DEBUG_KMS(ctx->dev, "hratio[%d]vratio[%d]up_h[%d]up_v[%d]\n",
sc->hratio, sc->vratio, sc->up_h, sc->up_v);
shfactor = FIMC_SHFACTOR - (hfactor + vfactor);
DRM_DEV_DEBUG_KMS(ctx->dev, "shfactor[%d]\n", shfactor);
cfg = (EXYNOS_CISCPRERATIO_SHFACTOR(shfactor) |
EXYNOS_CISCPRERATIO_PREHORRATIO(1 << hfactor) |
EXYNOS_CISCPRERATIO_PREVERRATIO(1 << vfactor));
fimc_write(ctx, cfg, EXYNOS_CISCPRERATIO);
cfg = (EXYNOS_CISCPREDST_PREDSTWIDTH(pre_dst_width) |
EXYNOS_CISCPREDST_PREDSTHEIGHT(pre_dst_height));
fimc_write(ctx, cfg, EXYNOS_CISCPREDST);
return ret;
}
static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
{
u32 cfg, cfg_ext;
DRM_DEV_DEBUG_KMS(ctx->dev, "range[%d]bypass[%d]up_h[%d]up_v[%d]\n",
sc->range, sc->bypass, sc->up_h, sc->up_v);
DRM_DEV_DEBUG_KMS(ctx->dev, "hratio[%d]vratio[%d]\n",
sc->hratio, sc->vratio);
cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
cfg &= ~(EXYNOS_CISCCTRL_SCALERBYPASS |
EXYNOS_CISCCTRL_SCALEUP_H | EXYNOS_CISCCTRL_SCALEUP_V |
EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK |
EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK |
EXYNOS_CISCCTRL_CSCR2Y_WIDE |
EXYNOS_CISCCTRL_CSCY2R_WIDE);
if (sc->range)
cfg |= (EXYNOS_CISCCTRL_CSCR2Y_WIDE |
EXYNOS_CISCCTRL_CSCY2R_WIDE);
if (sc->bypass)
cfg |= EXYNOS_CISCCTRL_SCALERBYPASS;
if (sc->up_h)
cfg |= EXYNOS_CISCCTRL_SCALEUP_H;
if (sc->up_v)
cfg |= EXYNOS_CISCCTRL_SCALEUP_V;
cfg |= (EXYNOS_CISCCTRL_MAINHORRATIO((sc->hratio >> 6)) |
EXYNOS_CISCCTRL_MAINVERRATIO((sc->vratio >> 6)));
fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
cfg_ext = fimc_read(ctx, EXYNOS_CIEXTEN);
cfg_ext &= ~EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK;
cfg_ext &= ~EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK;
cfg_ext |= (EXYNOS_CIEXTEN_MAINHORRATIO_EXT(sc->hratio) |
EXYNOS_CIEXTEN_MAINVERRATIO_EXT(sc->vratio));
fimc_write(ctx, cfg_ext, EXYNOS_CIEXTEN);
}
static void fimc_dst_set_size(struct fimc_context *ctx,
struct exynos_drm_ipp_buffer *buf)
{
unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
u32 cfg, cfg_ext;
DRM_DEV_DEBUG_KMS(ctx->dev, "hsize[%d]vsize[%d]\n", real_width,
buf->buf.height);
/* original size */
cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(real_width) |
EXYNOS_ORGOSIZE_VERTICAL(buf->buf.height));
fimc_write(ctx, cfg, EXYNOS_ORGOSIZE);
DRM_DEV_DEBUG_KMS(ctx->dev, "x[%d]y[%d]w[%d]h[%d]\n", buf->rect.x,
buf->rect.y,
buf->rect.w, buf->rect.h);
/* CSC ITU */
cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
cfg &= ~EXYNOS_CIGCTRL_CSC_MASK;
if (buf->buf.width >= FIMC_WIDTH_ITU_709)
cfg |= EXYNOS_CIGCTRL_CSC_ITU709;
else
cfg |= EXYNOS_CIGCTRL_CSC_ITU601;
fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
/* target image size */
cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
cfg &= ~(EXYNOS_CITRGFMT_TARGETH_MASK |
EXYNOS_CITRGFMT_TARGETV_MASK);
if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE)
cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(buf->rect.h) |
EXYNOS_CITRGFMT_TARGETVSIZE(buf->rect.w));
else
cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(buf->rect.w) |
EXYNOS_CITRGFMT_TARGETVSIZE(buf->rect.h));
fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
/* target area */
cfg = EXYNOS_CITAREA_TARGET_AREA(buf->rect.w * buf->rect.h);
fimc_write(ctx, cfg, EXYNOS_CITAREA);
/* offset Y(RGB), Cb, Cr */
cfg = (EXYNOS_CIOYOFF_HORIZONTAL(buf->rect.x) |
EXYNOS_CIOYOFF_VERTICAL(buf->rect.y));
fimc_write(ctx, cfg, EXYNOS_CIOYOFF);
cfg = (EXYNOS_CIOCBOFF_HORIZONTAL(buf->rect.x) |
EXYNOS_CIOCBOFF_VERTICAL(buf->rect.y));
fimc_write(ctx, cfg, EXYNOS_CIOCBOFF);
cfg = (EXYNOS_CIOCROFF_HORIZONTAL(buf->rect.x) |
EXYNOS_CIOCROFF_VERTICAL(buf->rect.y));
fimc_write(ctx, cfg, EXYNOS_CIOCROFF);
}
static void fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id,
bool enqueue)
{
unsigned long flags;
u32 buf_num;
u32 cfg;
DRM_DEV_DEBUG_KMS(ctx->dev, "buf_id[%d]enqueu[%d]\n", buf_id, enqueue);
spin_lock_irqsave(&ctx->lock, flags);
cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
if (enqueue)
cfg |= (1 << buf_id);
else
cfg &= ~(1 << buf_id);
fimc_write(ctx, cfg, EXYNOS_CIFCNTSEQ);
buf_num = hweight32(cfg);
if (enqueue && buf_num >= FIMC_BUF_START)
fimc_mask_irq(ctx, true);
else if (!enqueue && buf_num <= FIMC_BUF_STOP)
fimc_mask_irq(ctx, false);
spin_unlock_irqrestore(&ctx->lock, flags);
}
static void fimc_dst_set_addr(struct fimc_context *ctx,
struct exynos_drm_ipp_buffer *buf)
{
fimc_write(ctx, buf->dma_addr[0], EXYNOS_CIOYSA(0));
fimc_write(ctx, buf->dma_addr[1], EXYNOS_CIOCBSA(0));
fimc_write(ctx, buf->dma_addr[2], EXYNOS_CIOCRSA(0));
fimc_dst_set_buf_seq(ctx, 0, true);
}
static void fimc_stop(struct fimc_context *ctx);
static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
{
struct fimc_context *ctx = dev_id;
int buf_id;
DRM_DEV_DEBUG_KMS(ctx->dev, "fimc id[%d]\n", ctx->id);
fimc_clear_irq(ctx);
if (fimc_check_ovf(ctx))
return IRQ_NONE;
if (!fimc_check_frame_end(ctx))
return IRQ_NONE;
buf_id = fimc_get_buf_id(ctx);
if (buf_id < 0)
return IRQ_HANDLED;
DRM_DEV_DEBUG_KMS(ctx->dev, "buf_id[%d]\n", buf_id);
if (ctx->task) {
struct exynos_drm_ipp_task *task = ctx->task;
ctx->task = NULL;
pm_runtime_mark_last_busy(ctx->dev);
pm_runtime_put_autosuspend(ctx->dev);
exynos_drm_ipp_task_done(task, 0);
}
fimc_dst_set_buf_seq(ctx, buf_id, false);
fimc_stop(ctx);
return IRQ_HANDLED;
}
static void fimc_clear_addr(struct fimc_context *ctx)
{
int i;
for (i = 0; i < FIMC_MAX_SRC; i++) {
fimc_write(ctx, 0, EXYNOS_CIIYSA(i));
fimc_write(ctx, 0, EXYNOS_CIICBSA(i));
fimc_write(ctx, 0, EXYNOS_CIICRSA(i));
}
for (i = 0; i < FIMC_MAX_DST; i++) {
fimc_write(ctx, 0, EXYNOS_CIOYSA(i));
fimc_write(ctx, 0, EXYNOS_CIOCBSA(i));
fimc_write(ctx, 0, EXYNOS_CIOCRSA(i));
}
}
static void fimc_reset(struct fimc_context *ctx)
{
/* reset h/w block */
fimc_sw_reset(ctx);
/* reset scaler capability */
memset(&ctx->sc, 0x0, sizeof(ctx->sc));
fimc_clear_addr(ctx);
}
static void fimc_start(struct fimc_context *ctx)
{
u32 cfg0, cfg1;
fimc_mask_irq(ctx, true);
/* If set true, we can save jpeg about screen */
fimc_handle_jpeg(ctx, false);
fimc_set_scaler(ctx, &ctx->sc);
fimc_set_type_ctrl(ctx);
fimc_handle_lastend(ctx, false);
/* setup dma */
cfg0 = fimc_read(ctx, EXYNOS_MSCTRL);
cfg0 &= ~EXYNOS_MSCTRL_INPUT_MASK;
cfg0 |= EXYNOS_MSCTRL_INPUT_MEMORY;
fimc_write(ctx, cfg0, EXYNOS_MSCTRL);
/* Reset status */
fimc_write(ctx, 0x0, EXYNOS_CISTATUS);
cfg0 = fimc_read(ctx, EXYNOS_CIIMGCPT);
cfg0 &= ~EXYNOS_CIIMGCPT_IMGCPTEN_SC;
cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN_SC;
/* Scaler */
cfg1 = fimc_read(ctx, EXYNOS_CISCCTRL);
cfg1 &= ~EXYNOS_CISCCTRL_SCAN_MASK;
cfg1 |= (EXYNOS_CISCCTRL_PROGRESSIVE |
EXYNOS_CISCCTRL_SCALERSTART);
fimc_write(ctx, cfg1, EXYNOS_CISCCTRL);
/* Enable image capture*/
cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN;
fimc_write(ctx, cfg0, EXYNOS_CIIMGCPT);
/* Disable frame end irq */
fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
fimc_clear_bits(ctx, EXYNOS_CIOCTRL, EXYNOS_CIOCTRL_WEAVE_MASK);
fimc_set_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
}
static void fimc_stop(struct fimc_context *ctx)
{
u32 cfg;
/* Source clear */
cfg = fimc_read(ctx, EXYNOS_MSCTRL);
cfg &= ~EXYNOS_MSCTRL_INPUT_MASK;
cfg &= ~EXYNOS_MSCTRL_ENVID;
fimc_write(ctx, cfg, EXYNOS_MSCTRL);
fimc_mask_irq(ctx, false);
/* reset sequence */
fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
/* Scaler disable */
fimc_clear_bits(ctx, EXYNOS_CISCCTRL, EXYNOS_CISCCTRL_SCALERSTART);
/* Disable image capture */
fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
/* Enable frame end irq */
fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
}
static int fimc_commit(struct exynos_drm_ipp *ipp,
struct exynos_drm_ipp_task *task)
{
struct fimc_context *ctx =
container_of(ipp, struct fimc_context, ipp);
int ret;
ret = pm_runtime_resume_and_get(ctx->dev);
if (ret < 0) {
dev_err(ctx->dev, "failed to enable FIMC device.\n");
return ret;
}
ctx->task = task;
fimc_src_set_fmt(ctx, task->src.buf.fourcc, task->src.buf.modifier);
fimc_src_set_size(ctx, &task->src);
fimc_src_set_transf(ctx, DRM_MODE_ROTATE_0);
fimc_src_set_addr(ctx, &task->src);
fimc_dst_set_fmt(ctx, task->dst.buf.fourcc, task->dst.buf.modifier);
fimc_dst_set_transf(ctx, task->transform.rotation);
fimc_dst_set_size(ctx, &task->dst);
fimc_dst_set_addr(ctx, &task->dst);
fimc_set_prescaler(ctx, &ctx->sc, &task->src.rect, &task->dst.rect);
fimc_start(ctx);
return 0;
}
static void fimc_abort(struct exynos_drm_ipp *ipp,
struct exynos_drm_ipp_task *task)
{
struct fimc_context *ctx =
container_of(ipp, struct fimc_context, ipp);
fimc_reset(ctx);
if (ctx->task) {
struct exynos_drm_ipp_task *task = ctx->task;
ctx->task = NULL;
pm_runtime_mark_last_busy(ctx->dev);
pm_runtime_put_autosuspend(ctx->dev);
exynos_drm_ipp_task_done(task, -EIO);
}
}
static struct exynos_drm_ipp_funcs ipp_funcs = {
.commit = fimc_commit,
.abort = fimc_abort,
};
static int fimc_bind(struct device *dev, struct device *master, void *data)
{
struct fimc_context *ctx = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
struct exynos_drm_ipp *ipp = &ctx->ipp;
ctx->drm_dev = drm_dev;
ipp->drm_dev = drm_dev;
exynos_drm_register_dma(drm_dev, dev, &ctx->dma_priv);
exynos_drm_ipp_register(dev, ipp, &ipp_funcs,
DRM_EXYNOS_IPP_CAP_CROP | DRM_EXYNOS_IPP_CAP_ROTATE |
DRM_EXYNOS_IPP_CAP_SCALE | DRM_EXYNOS_IPP_CAP_CONVERT,
ctx->formats, ctx->num_formats, "fimc");
dev_info(dev, "The exynos fimc has been probed successfully\n");
return 0;
}
static void fimc_unbind(struct device *dev, struct device *master,
void *data)
{
struct fimc_context *ctx = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
struct exynos_drm_ipp *ipp = &ctx->ipp;
exynos_drm_ipp_unregister(dev, ipp);
exynos_drm_unregister_dma(drm_dev, dev, &ctx->dma_priv);
}
static const struct component_ops fimc_component_ops = {
.bind = fimc_bind,
.unbind = fimc_unbind,
};
static void fimc_put_clocks(struct fimc_context *ctx)
{
int i;
for (i = 0; i < FIMC_CLKS_MAX; i++) {
if (IS_ERR(ctx->clocks[i]))
continue;
clk_put(ctx->clocks[i]);
ctx->clocks[i] = ERR_PTR(-EINVAL);
}
}
static int fimc_setup_clocks(struct fimc_context *ctx)
{
struct device *fimc_dev = ctx->dev;
struct device *dev;
int ret, i;
for (i = 0; i < FIMC_CLKS_MAX; i++)
ctx->clocks[i] = ERR_PTR(-EINVAL);
for (i = 0; i < FIMC_CLKS_MAX; i++) {
if (i == FIMC_CLK_WB_A || i == FIMC_CLK_WB_B)
dev = fimc_dev->parent;
else
dev = fimc_dev;
ctx->clocks[i] = clk_get(dev, fimc_clock_names[i]);
if (IS_ERR(ctx->clocks[i])) {
ret = PTR_ERR(ctx->clocks[i]);
dev_err(fimc_dev, "failed to get clock: %s\n",
fimc_clock_names[i]);
goto e_clk_free;
}
}
ret = clk_prepare_enable(ctx->clocks[FIMC_CLK_LCLK]);
if (!ret)
return ret;
e_clk_free:
fimc_put_clocks(ctx);
return ret;
}
int exynos_drm_check_fimc_device(struct device *dev)
{
int id = of_alias_get_id(dev->of_node, "fimc");
if (id >= 0 && (BIT(id) & fimc_mask))
return 0;
return -ENODEV;
}
static const unsigned int fimc_formats[] = {
DRM_FORMAT_XRGB8888, DRM_FORMAT_RGB565,
DRM_FORMAT_NV12, DRM_FORMAT_NV16, DRM_FORMAT_NV21, DRM_FORMAT_NV61,
DRM_FORMAT_UYVY, DRM_FORMAT_VYUY, DRM_FORMAT_YUYV, DRM_FORMAT_YVYU,
DRM_FORMAT_YUV420, DRM_FORMAT_YVU420, DRM_FORMAT_YUV422,
DRM_FORMAT_YUV444,
};
static const unsigned int fimc_tiled_formats[] = {
DRM_FORMAT_NV12, DRM_FORMAT_NV21,
};
static const struct drm_exynos_ipp_limit fimc_4210_limits_v1[] = {
{ IPP_SIZE_LIMIT(BUFFER, .h = { 16, 8192, 8 }, .v = { 16, 8192, 2 }) },
{ IPP_SIZE_LIMIT(AREA, .h = { 16, 4224, 2 }, .v = { 16, 0, 2 }) },
{ IPP_SIZE_LIMIT(ROTATED, .h = { 128, 1920 }, .v = { 128, 0 }) },
{ IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
.v = { (1 << 16) / 64, (1 << 16) * 64 }) },
};
static const struct drm_exynos_ipp_limit fimc_4210_limits_v2[] = {
{ IPP_SIZE_LIMIT(BUFFER, .h = { 16, 8192, 8 }, .v = { 16, 8192, 2 }) },
{ IPP_SIZE_LIMIT(AREA, .h = { 16, 1920, 2 }, .v = { 16, 0, 2 }) },
{ IPP_SIZE_LIMIT(ROTATED, .h = { 128, 1366 }, .v = { 128, 0 }) },
{ IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
.v = { (1 << 16) / 64, (1 << 16) * 64 }) },
};
static const struct drm_exynos_ipp_limit fimc_4210_limits_tiled_v1[] = {
{ IPP_SIZE_LIMIT(BUFFER, .h = { 128, 1920, 128 }, .v = { 32, 1920, 32 }) },
{ IPP_SIZE_LIMIT(AREA, .h = { 128, 1920, 2 }, .v = { 128, 0, 2 }) },
{ IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
.v = { (1 << 16) / 64, (1 << 16) * 64 }) },
};
static const struct drm_exynos_ipp_limit fimc_4210_limits_tiled_v2[] = {
{ IPP_SIZE_LIMIT(BUFFER, .h = { 128, 1920, 128 }, .v = { 32, 1920, 32 }) },
{ IPP_SIZE_LIMIT(AREA, .h = { 128, 1366, 2 }, .v = { 128, 0, 2 }) },
{ IPP_SCALE_LIMIT(.h = { (1 << 16) / 64, (1 << 16) * 64 },
.v = { (1 << 16) / 64, (1 << 16) * 64 }) },
};
static int fimc_probe(struct platform_device *pdev)
{
const struct drm_exynos_ipp_limit *limits;
struct exynos_drm_ipp_formats *formats;
struct device *dev = &pdev->dev;
struct fimc_context *ctx;
int ret;
int i, j, num_limits, num_formats;
if (exynos_drm_check_fimc_device(dev) != 0)
return -ENODEV;
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ctx->dev = dev;
ctx->id = of_alias_get_id(dev->of_node, "fimc");
/* construct formats/limits array */
num_formats = ARRAY_SIZE(fimc_formats) + ARRAY_SIZE(fimc_tiled_formats);
formats = devm_kcalloc(dev, num_formats, sizeof(*formats),
GFP_KERNEL);
if (!formats)
return -ENOMEM;
/* linear formats */
if (ctx->id < 3) {
limits = fimc_4210_limits_v1;
num_limits = ARRAY_SIZE(fimc_4210_limits_v1);
} else {
limits = fimc_4210_limits_v2;
num_limits = ARRAY_SIZE(fimc_4210_limits_v2);
}
for (i = 0; i < ARRAY_SIZE(fimc_formats); i++) {
formats[i].fourcc = fimc_formats[i];
formats[i].type = DRM_EXYNOS_IPP_FORMAT_SOURCE |
DRM_EXYNOS_IPP_FORMAT_DESTINATION;
formats[i].limits = limits;
formats[i].num_limits = num_limits;
}
/* tiled formats */
if (ctx->id < 3) {
limits = fimc_4210_limits_tiled_v1;
num_limits = ARRAY_SIZE(fimc_4210_limits_tiled_v1);
} else {
limits = fimc_4210_limits_tiled_v2;
num_limits = ARRAY_SIZE(fimc_4210_limits_tiled_v2);
}
for (j = i, i = 0; i < ARRAY_SIZE(fimc_tiled_formats); j++, i++) {
formats[j].fourcc = fimc_tiled_formats[i];
formats[j].modifier = DRM_FORMAT_MOD_SAMSUNG_64_32_TILE;
formats[j].type = DRM_EXYNOS_IPP_FORMAT_SOURCE |
DRM_EXYNOS_IPP_FORMAT_DESTINATION;
formats[j].limits = limits;
formats[j].num_limits = num_limits;
}
ctx->formats = formats;
ctx->num_formats = num_formats;
/* resource memory */
ctx->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(ctx->regs))
return PTR_ERR(ctx->regs);
/* resource irq */
ret = platform_get_irq(pdev, 0);
if (ret < 0)
return ret;
ret = devm_request_irq(dev, ret, fimc_irq_handler,
0, dev_name(dev), ctx);
if (ret < 0) {
dev_err(dev, "failed to request irq.\n");
return ret;
}
ret = fimc_setup_clocks(ctx);
if (ret < 0)
return ret;
spin_lock_init(&ctx->lock);
platform_set_drvdata(pdev, ctx);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, FIMC_AUTOSUSPEND_DELAY);
pm_runtime_enable(dev);
ret = component_add(dev, &fimc_component_ops);
if (ret)
goto err_pm_dis;
dev_info(dev, "drm fimc registered successfully.\n");
return 0;
err_pm_dis:
pm_runtime_dont_use_autosuspend(dev);
pm_runtime_disable(dev);
fimc_put_clocks(ctx);
return ret;
}
static int fimc_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct fimc_context *ctx = get_fimc_context(dev);
component_del(dev, &fimc_component_ops);
pm_runtime_dont_use_autosuspend(dev);
pm_runtime_disable(dev);
fimc_put_clocks(ctx);
return 0;
}
static int fimc_runtime_suspend(struct device *dev)
{
struct fimc_context *ctx = get_fimc_context(dev);
DRM_DEV_DEBUG_KMS(dev, "id[%d]\n", ctx->id);
clk_disable_unprepare(ctx->clocks[FIMC_CLK_GATE]);
return 0;
}
static int fimc_runtime_resume(struct device *dev)
{
struct fimc_context *ctx = get_fimc_context(dev);
DRM_DEV_DEBUG_KMS(dev, "id[%d]\n", ctx->id);
return clk_prepare_enable(ctx->clocks[FIMC_CLK_GATE]);
}
static DEFINE_RUNTIME_DEV_PM_OPS(fimc_pm_ops, fimc_runtime_suspend,
fimc_runtime_resume, NULL);
static const struct of_device_id fimc_of_match[] = {
{ .compatible = "samsung,exynos4210-fimc" },
{ .compatible = "samsung,exynos4212-fimc" },
{ },
};
MODULE_DEVICE_TABLE(of, fimc_of_match);
struct platform_driver fimc_driver = {
.probe = fimc_probe,
.remove = fimc_remove,
.driver = {
.of_match_table = fimc_of_match,
.name = "exynos-drm-fimc",
.owner = THIS_MODULE,
.pm = pm_ptr(&fimc_pm_ops),
},
};