forked from LibreELEC/linux-amlogic
/
amvideocap.c
1211 lines (1115 loc) · 31.6 KB
/
amvideocap.c
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/*
* drivers/amlogic/amports/amvideocap.c
*
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*/
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/atomic.h>
#include <linux/bug.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/uaccess.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/major.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/amlogic/amports/amvideocap.h>
#include <linux/amlogic/amports/vframe.h>
#include <linux/amlogic/canvas/canvas.h>
#include <linux/amlogic/canvas/canvas_mgr.h>
#include <linux/amlogic/ge2d/ge2d.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/dma-mapping.h>
#include <linux/amlogic/codec_mm/codec_mm.h>
#include "amports_priv.h"
#include "amvideocap_priv.h"
/*
#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON6
#include <mach/mod_gate.h>
#endif
*/
#ifdef CONFIG_PM
#include <linux/pm.h>
#endif
#define DRIVER_NAME "amvideocap"
#define MODULE_NAME "amvideocap"
#define DEVICE_NAME "amvideocap"
#define CAP_WIDTH_MAX 1920
#define CAP_HEIGHT_MAX 1080
#define BUF_SIZE_MAX (0x800000) /* 1920 * 1088 * 4 */
MODULE_DESCRIPTION("Video Frame capture");
MODULE_AUTHOR("amlogic-bj");
MODULE_LICENSE("GPL");
#define AMCAP_MAX_OPEND 16
struct amvideocap_global_data {
struct class *class;
struct device *dev;
struct device *micro_dev;
int major;
unsigned long phyaddr;
unsigned long vaddr;
unsigned long size;
int opened_cnt;
int flags;
struct mutex lock;
struct video_frame_info want;
u64 wait_max_ms;
};
static struct amvideocap_global_data amvideocap_gdata;
static struct ge2d_context_s *ge2d_amvideocap_context;
static inline struct amvideocap_global_data *getgctrl(void)
{
return &amvideocap_gdata;
}
static int use_cma;
#ifdef CONFIG_CMA
static struct platform_device *amvideocap_pdev;
static int cma_max_size;
#define CMA_NAME "amvideocap"
#endif
#define gLOCK() mutex_lock(&(getgctrl()->lock))
#define gUNLOCK() mutex_unlock(&(getgctrl()->lock))
#define gLOCKINIT() mutex_init(&(getgctrl()->lock))
/*********************************************************
* /dev/amvideo APIs
*********************************************************/
static int amvideocap_open(struct inode *inode, struct file *file)
{
struct amvideocap_private *priv;
gLOCK();
#ifdef CONFIG_CMA
if (use_cma && amvideocap_pdev) {
unsigned long phybufaddr;
phybufaddr = codec_mm_alloc_for_dma(CMA_NAME,
cma_max_size * SZ_1M / PAGE_SIZE,
4 + PAGE_SHIFT, CODEC_MM_FLAGS_CPU);
/* pr_err("%s: codec_mm_alloc_for_dma:%p\n",
__func__, (void *)phybufaddr);
*/
amvideocap_register_memory((unsigned char *)phybufaddr,
cma_max_size * SZ_1M);
}
#endif
if (!getgctrl()->phyaddr) {
gUNLOCK();
pr_err("Error,no memory have register for amvideocap\n");
return -ENOMEM;
}
#ifdef CONFIG_CMA
if (!getgctrl()->vaddr) {
getgctrl()->vaddr = (unsigned long)codec_mm_phys_to_virt(
getgctrl()->phyaddr);
if (!getgctrl()->vaddr) {
pr_err("%s: failed to remap y addr\n", __func__);
gUNLOCK();
return -ENOMEM;
}
}
#endif
if (getgctrl()->opened_cnt > AMCAP_MAX_OPEND) {
gUNLOCK();
pr_err("Too Many opend video cap files\n");
return -EMFILE;
}
priv = kmalloc(sizeof(struct amvideocap_private), GFP_KERNEL);
if (!priv) {
gUNLOCK();
pr_err("alloc memory failed for amvideo cap\n");
return -ENOMEM;
}
memset(priv, 0, sizeof(struct amvideocap_private));
getgctrl()->opened_cnt++;
gUNLOCK();
file->private_data = priv;
priv->phyaddr = getgctrl()->phyaddr;
priv->vaddr = (u8 *) getgctrl()->vaddr;
priv->want = getgctrl()->want;
priv->src_rect.x = -1;
priv->src_rect.y = -1;
priv->src_rect.width = -1;
priv->src_rect.height = -1;
return 0;
}
static int amvideocap_release(struct inode *inode, struct file *file)
{
struct amvideocap_private *priv = file->private_data;
kfree(priv);
#ifdef CONFIG_CMA
if (use_cma && amvideocap_pdev) {
codec_mm_free_for_dma(CMA_NAME, getgctrl()->phyaddr);
/*
pr_err("%s: codec_mm_free_for_dma:%p\n", __func__,
(void *)getgctrl()->phyaddr);
*/
}
#endif
gLOCK();
getgctrl()->opened_cnt--;
gUNLOCK();
return 0;
}
static int amvideocap_format_to_byte4pix(int fmt)
{
switch (fmt) {
case GE2D_FORMAT_S16_RGB_565:
return 2;
case GE2D_FORMAT_S24_BGR:
return 3;
case GE2D_FORMAT_S24_RGB:
return 3;
case GE2D_FORMAT_S32_ABGR:
return 4;
case GE2D_FORMAT_S32_RGBA:
return 4;
case GE2D_FORMAT_S32_BGRA:
return 4;
case GE2D_FORMAT_S32_ARGB:
return 4;
default:
return 4;
}
};
static int amvideocap_capture_get_frame
(struct amvideocap_private *priv, struct vframe_s **vf, int *cur_index)
{
int ret;
ret = ext_get_cur_video_frame(vf, cur_index);
return ret;
}
static int amvideocap_capture_put_frame
(struct amvideocap_private *priv, struct vframe_s *vf)
{
return ext_put_video_frame(vf);
}
static int amvideocap_get_input_format(struct vframe_s *vf)
{
int format = GE2D_FORMAT_M24_NV21;
/* pr_info("vf->type:0x%x\n", vf->type); */
if ((vf->type & VIDTYPE_VIU_422) == VIDTYPE_VIU_422) {
pr_info
("*****************Into VIDTYPE_VIU_422******************\n");
format = GE2D_FORMAT_S16_YUV422;
} else if ((vf->type & VIDTYPE_VIU_444) == VIDTYPE_VIU_444) {
pr_info
("*****************Into VIDTYPE_VIU_444******************\n");
format = GE2D_FORMAT_S24_YUV444;
} else if ((vf->type & VIDTYPE_VIU_NV21) == VIDTYPE_VIU_NV21) {
pr_info
("****************Into VIDTYPE_VIU_NV21******************\n");
format = GE2D_FORMAT_M24_NV21;
}
return format;
}
static ssize_t amvideocap_YUV_to_RGB(
struct amvideocap_private *priv,
u32 cur_index, int w, int h,
struct vframe_s *vf, int outfmt)
{
struct config_para_ex_s ge2d_config;
struct canvas_s cs0, cs1, cs2, cd;
void __iomem *psrc;
void __iomem *pdst;
int temp_cma_buf_size = 0;
unsigned long phybufaddr_8bit = 0;
struct timeval start, end;
unsigned long time_use;
int ret = 0;
struct canvas_s temp_cs0, temp_cs1, temp_cs2;
int temp_canvas_idx = -1;
int temp_y_index = -1;
int temp_u_index = -1;
int temp_v_index = -1;
unsigned char buf1[16];
unsigned char buf2[16];
unsigned char buf3[16];
unsigned char buf_in[48];
unsigned char buf_out[32];
unsigned char tmp_buf[8];
unsigned char in_cursor;
unsigned char out_cursor;
unsigned long read_size = 0;
unsigned int i;
unsigned char *line_start;
unsigned long counter = 0;
unsigned int w_align;
unsigned int h_align;
unsigned char tmp_char1;
int height_after_di;
const char *amvideocap_owner = "amvideocapframe";
int canvas_idx = canvas_pool_map_alloc_canvas(amvideocap_owner);
int y_index = cur_index & 0xff;
int u_index = (cur_index >> 8) & 0xff;
int v_index = (cur_index >> 16) & 0xff;
int input_x, input_y, input_width, input_height, intfmt;
unsigned long RGB_addr;
memset(&ge2d_config, 0, sizeof(struct config_para_ex_s));
intfmt = amvideocap_get_input_format(vf);
if (((vf->bitdepth & BITDEPTH_Y10)) &&
(intfmt == GE2D_FORMAT_S16_YUV422)) {
temp_canvas_idx =
canvas_pool_map_alloc_canvas(amvideocap_owner);
if (temp_canvas_idx < 0) {
pr_err("alloc temp_canvas_idx failed");
return -1;
}
temp_y_index = temp_canvas_idx & 0xff;
temp_u_index = (temp_canvas_idx >> 8) & 0xff;
temp_v_index = (temp_canvas_idx >> 16) & 0xff;
}
/* /unsigned long RGB_phy_addr=getgctrl()->phyaddr; */
if (!priv->phyaddr) {
pr_err("%s: failed to alloc y addr\n", __func__);
return -1;
}
pr_info("RGB_phy_addr:%x\n", (unsigned int)priv->phyaddr);
RGB_addr = (unsigned long)priv->vaddr;
if (!RGB_addr) {
pr_err("%s: failed to remap y addr\n", __func__);
return -1;
}
pr_info("RGB_addr:%lx\n", RGB_addr);
if (vf == NULL) {
pr_err("%s: vf is NULL\n", __func__);
return -1;
}
canvas_config(canvas_idx, priv->phyaddr,
w * amvideocap_format_to_byte4pix(outfmt), h,
CANVAS_ADDR_NOWRAP, CANVAS_BLKMODE_LINEAR);
if (priv->src_rect.x < 0 || priv->src_rect.x > vf->width)
input_x = 0;
else
input_x = priv->src_rect.x;
if (priv->src_rect.y < 0 || priv->src_rect.y > vf->height)
input_y = 0;
else
input_y = priv->src_rect.y;
if (priv->src_rect.width < 0)
input_width = vf->width;
else if ((priv->src_rect.x + priv->src_rect.width) > vf->width) {
input_width =
priv->src_rect.x + priv->src_rect.width - vf->width;
} else
input_width = priv->src_rect.width;
if (priv->src_rect.height < 0)
input_height = vf->height;
else if ((priv->src_rect.y + priv->src_rect.height) > vf->height) {
input_height =
priv->src_rect.y + priv->src_rect.height - vf->height;
} else
input_height = priv->src_rect.height;
height_after_di = vf->height;
if (((vf->bitdepth & BITDEPTH_Y10)) &&
(intfmt == GE2D_FORMAT_S16_YUV422)) {
pr_info("input_height = %d , vf->type_original = %x\n" ,
input_height, vf->type_original);
if ((vf->source_type == VFRAME_SOURCE_TYPE_HDMI) ||
(vf->source_type == VFRAME_SOURCE_TYPE_CVBS) ||
(vf->source_type == VFRAME_SOURCE_TYPE_TUNER)) {
if (vf->type_original & VIDTYPE_INTERLACE) {
height_after_di = vf->height >> 1;
input_height >>= 1;
} else {
height_after_di = vf->height;
}
} else {
/*local playback and DTV*/
pr_info("vf->prog_proc_config = %d",
vf->prog_proc_config);
if ((!vf->prog_proc_config) &&
(!(vf->type_original & VIDTYPE_INTERLACE))) {
height_after_di = vf->height;
} else {
height_after_di = vf->height >> 1;
input_height >>= 1;
}
}
} else if (is_meson_g9tv_cpu() || is_meson_gxtvbb_cpu()) {
if (vf->type_original & VIDTYPE_INTERLACE)
input_height = input_height / 2;
} else {
if (intfmt == GE2D_FORMAT_S16_YUV422)
input_height = input_height / 2;
}
ge2d_config.alu_const_color = 0;
ge2d_config.bitmask_en = 0;
ge2d_config.src1_gb_alpha = 0;
ge2d_config.dst_xy_swap = 0;
canvas_read(y_index, &cs0);
canvas_read(u_index, &cs1);
canvas_read(v_index, &cs2);
if (((vf->bitdepth & BITDEPTH_Y10)) &&
(intfmt == GE2D_FORMAT_S16_YUV422)) {
pr_info("vf->width = %d , vf->height = %d , vf->bitdepth = %d\n",
vf->width, vf->height, vf->bitdepth);
do_gettimeofday(&start);
psrc = phys_to_virt(cs0.addr);
w_align = ((vf->width + 32 - 1) & ~(32 - 1));
h_align = ((vf->height + 32 - 1) & ~(32 - 1));
temp_cma_buf_size =
(int)((w_align * h_align * 2)/(1024 * 1024)) + 1;
pr_info("phybufaddr_8bit buffer size = %d\n",
temp_cma_buf_size);
phybufaddr_8bit = codec_mm_alloc_for_dma(CMA_NAME,
temp_cma_buf_size * SZ_1M / PAGE_SIZE,
4 + PAGE_SHIFT, CODEC_MM_FLAGS_CPU);
if (!phybufaddr_8bit)
pr_err("failed to alloc phybufaddr_8bit\n");
canvas_config(temp_canvas_idx, phybufaddr_8bit,
w_align * 2, h_align,
CANVAS_ADDR_NOWRAP, CANVAS_BLKMODE_LINEAR);
canvas_read(temp_y_index, &temp_cs0);
canvas_read(temp_u_index, &temp_cs1);
canvas_read(temp_v_index, &temp_cs2);
pdst = phys_to_virt(temp_cs0.addr);
pr_info("height_after_di = %d" , height_after_di);
line_start = psrc;
for (i = 0; i < height_after_di; i++) {
for (read_size = 0; read_size < w_align*3;
read_size += 48) {
/* swap 64bit */
memcpy(buf1, line_start+read_size, 16);
memcpy(tmp_buf, buf1, 8);
memcpy(buf1, buf1+8, 8);
memcpy(buf1+8, tmp_buf, 8);
memcpy(buf_in+32, buf1, 16);
memcpy(buf2, line_start+read_size+16, 16);
memcpy(tmp_buf, buf2, 8);
memcpy(buf2, buf2+8, 8);
memcpy(buf2+8, tmp_buf, 8);
memcpy(buf_in+16, buf2, 16);
memcpy(buf3, line_start+read_size+32, 16);
memcpy(tmp_buf, buf3, 8);
memcpy(buf3, buf3+8, 8);
memcpy(buf3+8, tmp_buf, 8);
memcpy(buf_in, buf3, 16);
in_cursor = 47;
out_cursor = 0;
for (out_cursor = 0; out_cursor <= 30;
out_cursor += 2, in_cursor -= 3) {
buf_out[out_cursor] =
(buf_in[in_cursor-1] << 4) |
(buf_in[in_cursor-2] >> 4);
buf_out[out_cursor+1] =
buf_in[in_cursor];
}
for (out_cursor = 0; out_cursor <= 24;
out_cursor += 8) {
/* y1 y4 */
tmp_char1 = buf_out[1+out_cursor];
buf_out[1+out_cursor] =
buf_out[7+out_cursor];
buf_out[7+out_cursor] = tmp_char1;
/* y2 y3 */
tmp_char1 = buf_out[3+out_cursor];
buf_out[3+out_cursor] =
buf_out[5+out_cursor];
buf_out[5+out_cursor] = tmp_char1;
/* u1 u2 */
tmp_char1 = buf_out[out_cursor];
buf_out[out_cursor] =
buf_out[2+out_cursor];
buf_out[2+out_cursor] = tmp_char1;
/* v1 v2 */
tmp_char1 = buf_out[4+out_cursor];
buf_out[4+out_cursor] =
buf_out[6+out_cursor];
buf_out[6+out_cursor] = tmp_char1;
}
memcpy(pdst+counter*32, buf_out, 32);
counter += 1;
}
line_start += cs0.width;
}
codec_mm_dma_flush(pdst,
temp_cma_buf_size * SZ_1M, DMA_TO_DEVICE);
counter = 0;
do_gettimeofday(&end);
time_use = (end.tv_sec - start.tv_sec) * 1000 +
(end.tv_usec - start.tv_usec) / 1000;
pr_info("10to8 conversion cost time: %ldms\n", time_use);
}
pr_info("y_index=[0x%x] u_index=[0x%x] cur_index:%x\n", y_index,
u_index, cur_index);
if (((vf->bitdepth & BITDEPTH_Y10)) &&
(intfmt == GE2D_FORMAT_S16_YUV422)) {
ge2d_config.src_planes[0].addr = temp_cs0.addr;
ge2d_config.src_planes[0].w = temp_cs0.width;
ge2d_config.src_planes[0].h = temp_cs0.height;
ge2d_config.src_planes[1].addr = temp_cs1.addr;
ge2d_config.src_planes[1].w = temp_cs1.width;
ge2d_config.src_planes[1].h = temp_cs1.height;
ge2d_config.src_planes[2].addr = temp_cs2.addr;
ge2d_config.src_planes[2].w = temp_cs2.width;
ge2d_config.src_planes[2].h = temp_cs2.height;
pr_info("w=%d-height=%d\n", temp_cs0.width, temp_cs0.height);
pr_info("cs0.width=%d, cs0.height=%d\n", cs0.width, cs0.height);
} else {
ge2d_config.src_planes[0].addr = cs0.addr;
ge2d_config.src_planes[0].w = cs0.width;
ge2d_config.src_planes[0].h = cs0.height;
ge2d_config.src_planes[1].addr = cs1.addr;
ge2d_config.src_planes[1].w = cs1.width;
ge2d_config.src_planes[1].h = cs1.height;
ge2d_config.src_planes[2].addr = cs2.addr;
ge2d_config.src_planes[2].w = cs2.width;
ge2d_config.src_planes[2].h = cs2.height;
pr_info("w=%d-height=%d cur_index:%x\n",
cs0.width, cs0.height, cur_index);
}
ge2d_config.src_key.key_enable = 0;
ge2d_config.src_key.key_mask = 0;
ge2d_config.src_key.key_mode = 0;
ge2d_config.src_key.key_color = 0;
if (((vf->bitdepth & BITDEPTH_Y10)) &&
(intfmt == GE2D_FORMAT_S16_YUV422))
ge2d_config.src_para.canvas_index = temp_canvas_idx;
else
ge2d_config.src_para.canvas_index = cur_index;
ge2d_config.src_para.mem_type = CANVAS_TYPE_INVALID;
ge2d_config.src_para.format = intfmt;
ge2d_config.src_para.fill_color_en = 0;
ge2d_config.src_para.fill_mode = 0;
ge2d_config.src_para.x_rev = 0;
ge2d_config.src_para.y_rev = 0;
ge2d_config.src_para.color = 0;
ge2d_config.src_para.top = input_x;
ge2d_config.src_para.left = input_y;
ge2d_config.src_para.width = input_width;
ge2d_config.src_para.height = input_height;
canvas_read(canvas_idx, &cd);
pr_info("cd.addr:%x\n", (unsigned int)cd.addr);
ge2d_config.dst_planes[0].addr = cd.addr;
ge2d_config.dst_planes[0].w = cd.width;
ge2d_config.dst_planes[0].h = cd.height;
ge2d_config.dst_para.canvas_index = canvas_idx;
ge2d_config.dst_para.mem_type = CANVAS_TYPE_INVALID;
ge2d_config.dst_para.format = outfmt;
ge2d_config.dst_para.fill_color_en = 0;
ge2d_config.dst_para.fill_mode = 0;
ge2d_config.dst_para.x_rev = 0;
ge2d_config.dst_para.y_rev = 0;
ge2d_config.dst_xy_swap = 0;
ge2d_config.dst_para.color = 0;
ge2d_config.dst_para.top = 0;
ge2d_config.dst_para.left = 0;
ge2d_config.dst_para.width = w;
ge2d_config.dst_para.height = h;
if (ge2d_context_config_ex(ge2d_amvideocap_context, &ge2d_config) < 0) {
pr_err("++ge2d configing error.\n");
return -1;
}
stretchblt_noalpha(ge2d_amvideocap_context,
0,
0,
ge2d_config.src_para.width,
ge2d_config.src_para.height,
0,
0,
ge2d_config.dst_para.width,
ge2d_config.dst_para.height);
if (canvas_idx)
canvas_pool_map_free_canvas(canvas_idx);
if (((vf->bitdepth & BITDEPTH_Y10)) &&
(intfmt == GE2D_FORMAT_S16_YUV422)) {
if (phybufaddr_8bit) {
ret = codec_mm_free_for_dma(CMA_NAME, phybufaddr_8bit);
if (ret != 0)
pr_err("phybufaddr_8bit cma buffer free failed .\n");
}
if (temp_canvas_idx)
canvas_pool_map_free_canvas(temp_canvas_idx);
}
return 0;
/* vfs_write(video_rgb_filp,RGB_addr,size, &video_yuv_pos); */
}
static int amvideocap_capture_one_frame_l(
struct amvideocap_private *priv,
int curindex, int w, int h,
struct vframe_s *vf, int outge2dfmt)
{
int ret;
/* TODO: mod gate */
/* switch_mod_gate_by_name("ge2d", 1); */
ret = amvideocap_YUV_to_RGB(priv, curindex, w, h, vf, outge2dfmt);
/* TODO: mod gate */
/* switch_mod_gate_by_name("ge2d", 0); */
return ret;
}
static int amvideocap_capture_one_frame(
struct amvideocap_private *priv,
struct vframe_s *vfput, int index)
{
int w, h, ge2dfmt;
int curindex;
struct vframe_s *vf = vfput;
int ret = 0;
pr_info("%s:start vf=%p,index=%x\n", __func__, vf, index);
if (!vf)
ret = amvideocap_capture_get_frame(priv, &vf, &curindex);
else
curindex = index;
if (ret < 0 || !vf)
return -EAGAIN;
pr_info("%s: get vf type=%x\n", __func__, vf->type);
#define CHECK_AND_SETVAL(want, def) ((want) > 0 ? (want) : (def))
ge2dfmt = CHECK_AND_SETVAL(priv->want.fmt, vf->type);
w = CHECK_AND_SETVAL(priv->want.width, vf->width);
h = CHECK_AND_SETVAL(priv->want.height, vf->height);
#undef CHECK_AND_SETVAL
w = (w < CAP_WIDTH_MAX) ? w : CAP_WIDTH_MAX;
h = (h < CAP_HEIGHT_MAX) ? h : CAP_HEIGHT_MAX;
ret = amvideocap_capture_one_frame_l(priv, curindex, w, h, vf,
priv->want.fmt);
amvideocap_capture_put_frame(priv, vf);
if (!ret) {
pr_info("%s: capture ok priv->want.fmt=%d\n", __func__,
priv->want.fmt);
priv->state = AMVIDEOCAP_STATE_FINISHED_CAPTURE;
priv->src.width = vf->width;
priv->src.height = vf->height;
priv->out.timestamp_ms = vf->pts * 1000 / 90;
priv->out.width = w;
priv->out.height = h;
priv->out.fmt = priv->want.fmt;
priv->out.width_aligned = priv->out.width;
priv->out.byte_per_pix = amvideocap_format_to_byte4pix(
priv->out.fmt); /* RGBn */
} else
priv->state = AMVIDEOCAP_STATE_ERROR;
pr_info("amvideocap_capture_one_frame priv->state=%d\n", priv->state);
return ret;
}
static int amvideocap_capture_one_frame_callback(
unsigned long data,
struct vframe_s *vfput,
int index)
{
struct amvideocap_req_data *reqdata =
(struct amvideocap_req_data *)data;
amvideocap_capture_one_frame(reqdata->privdata, vfput, index);
return 0;
}
static int amvideocap_capture_one_frame_wait(
struct amvideocap_private *priv,
int waitms)
{
unsigned long timeout = jiffies + waitms * HZ / 1000;
int ret = 0;
struct amvideocap_req_data reqdata;
struct amvideocap_req req;
priv->sended_end_frame_cap_req = 0;
priv->state = AMVIDEOCAP_STATE_ON_CAPTURE;
do {
if (ret == -EAGAIN)
msleep(100);
if (priv->want.at_flags == CAP_FLAG_AT_END) {
if (!priv->sended_end_frame_cap_req) {
reqdata.privdata = priv;
req.callback =
amvideocap_capture_one_frame_callback;
req.data = (unsigned long)&reqdata;
req.at_flags = priv->want.at_flags;
req.timestamp_ms = priv->want.timestamp_ms;
priv->sended_end_frame_cap_req =
!ext_register_end_frame_callback(&req);
ret = -EAGAIN;
} else {
if (priv->state ==
AMVIDEOCAP_STATE_FINISHED_CAPTURE)
ret = 0;
else if (priv->state ==
AMVIDEOCAP_STATE_ON_CAPTURE)
ret = -EAGAIN;
}
} else {
ret = amvideocap_capture_one_frame(priv, NULL, 0);
pr_info("amvideocap_capture_one_frame_wait ret=%d\n",
ret);
}
} while (ret == -EAGAIN && time_before(jiffies, timeout));
ext_register_end_frame_callback(NULL); /*del req */
return ret;
}
static long amvideocap_ioctl(struct file *file,
unsigned int cmd, ulong arg)
{
int ret = 0;
struct amvideocap_private *priv = file->private_data;
switch (cmd) {
case AMVIDEOCAP_IOW_SET_WANTFRAME_FORMAT: {
priv->want.fmt = arg;
break;
}
case AMVIDEOCAP_IOW_SET_WANTFRAME_WIDTH: {
priv->want.width = arg;
break;
}
case AMVIDEOCAP_IOW_SET_WANTFRAME_HEIGHT: {
priv->want.height = arg;
break;
}
case AMVIDEOCAP_IOW_SET_WANTFRAME_TIMESTAMP_MS: {
priv->want.timestamp_ms = arg;
break;
}
case AMVIDEOCAP_IOW_SET_WANTFRAME_AT_FLAGS: {
priv->want.at_flags = arg;
break;
}
case AMVIDEOCAP_IOR_GET_FRAME_FORMAT: {
if (copy_to_user
((void *)arg, (void *)&priv->out.fmt,
sizeof(priv->out.fmt))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_FRAME_WIDTH: {
if (copy_to_user
((void *)arg, (void *)&priv->out.width,
sizeof(priv->out.width))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_FRAME_HEIGHT: {
if (copy_to_user
((void *)arg, (void *)&priv->out.height,
sizeof(priv->out.height))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_FRAME_TIMESTAMP_MS: {
if (copy_to_user
((void *)arg, (void *)&priv->out.timestamp_ms,
sizeof(priv->out.timestamp_ms))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_SRCFRAME_FORMAT: {
if (copy_to_user
((void *)arg, (void *)&priv->src.fmt,
sizeof(priv->src.fmt))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_SRCFRAME_WIDTH: {
if (copy_to_user
((void *)arg, (void *)&priv->src.width,
sizeof(priv->src.width))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_SRCFRAME_HEIGHT: {
if (copy_to_user
((void *)arg, (void *)&priv->src.height,
sizeof(priv->src.height))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOR_GET_STATE: {
if (copy_to_user
((void *)arg, (void *)&priv->state,
sizeof(priv->state))) {
ret = -EFAULT;
break;
}
break;
}
case AMVIDEOCAP_IOW_SET_WANTFRAME_WAIT_MAX_MS: {
priv->wait_max_ms = arg;
break;
}
case AMVIDEOCAP_IOW_SET_START_CAPTURE: {
ret = amvideocap_capture_one_frame_wait(priv, arg);
break;
}
case AMVIDEOCAP_IOW_SET_CANCEL_CAPTURE: {
if (priv->sended_end_frame_cap_req) {
ext_register_end_frame_callback(NULL); /*del req */
priv->sended_end_frame_cap_req = 0;
priv->state = AMVIDEOCAP_STATE_INIT;
}
break;
}
case AMVIDEOCAP_IOR_SET_SRC_X: {
priv->src_rect.x = arg;
break;
}
case AMVIDEOCAP_IOR_SET_SRC_Y: {
priv->src_rect.y = arg;
break;
}
case AMVIDEOCAP_IOR_SET_SRC_WIDTH: {
priv->src_rect.width = arg;
break;
}
case AMVIDEOCAP_IOR_SET_SRC_HEIGHT: {
priv->src_rect.height = arg;
break;
}
default:
pr_err("unkonw cmd=%x\n", cmd);
ret = -1;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long amvideocap_compat_ioctl(struct file *file,
unsigned int cmd, ulong arg)
{
return amvideocap_ioctl(file, cmd, (ulong)compat_ptr(arg));
}
#endif
static int amvideocap_mmap(struct file *file,
struct vm_area_struct *vma)
{
struct amvideocap_private *priv = file->private_data;
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
unsigned vm_size = vma->vm_end - vma->vm_start;
if (!priv->phyaddr)
return -EIO;
if (vm_size == 0)
return -EAGAIN;
/* pr_info("mmap:%x\n",vm_size); */
off += priv->phyaddr;
vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_IO;
if (remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) {
pr_err("set_cached: failed remap_pfn_range\n");
return -EAGAIN;
}
pr_info("amvideocap_mmap ok\n");
return 0;
}
static ssize_t amvideocap_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
struct amvideocap_private *priv = file->private_data;
int waitdelay;
int ret = 0;
int copied;
loff_t pos;
pos = *ppos;
if (priv->wait_max_ms > 0)
waitdelay = priv->wait_max_ms;
else {
if (priv->want.at_flags == CAP_FLAG_AT_END) /*need end */
waitdelay = file->f_flags & O_NONBLOCK ? HZ : HZ * 100;
else
waitdelay =
file->f_flags & O_NONBLOCK ?
HZ / 100 : HZ * 10;
}
if (!pos) { /*trigger a new capture, */
pr_info("start amvideocap_read waitdelay=%d\n", waitdelay);
ret = amvideocap_capture_one_frame_wait(priv, waitdelay);
pr_info("amvideocap_read=%d,priv->state=%d,priv->vaddr=%p\n",
ret, priv->state, priv->vaddr);
if ((ret == 0)
&& (priv->state == AMVIDEOCAP_STATE_FINISHED_CAPTURE)
&& (priv->vaddr != NULL)) {
int size = min((int)count, (priv->out.byte_per_pix *
priv->out.width_aligned *
priv->out.height));
pr_info
("priv->out_width=%d priv->out_height=%d",
priv->out.width, priv->out.height);
pr_info
(" priv->outfmt_byteppix=%d, size=%d\n",
priv->out.byte_per_pix, size);
#ifdef CONFIG_CMA
codec_mm_dma_flush(priv->vaddr,
cma_max_size * SZ_1M, DMA_FROM_DEVICE);
#endif
copied = copy_to_user(buf, priv->vaddr, size);
if (copied) {
pr_err
("amvideocap_read %d copy_to_user failed\n",
size);
}
ret = size;
}
} else {
/*read from old capture. */
if (priv->state != AMVIDEOCAP_STATE_FINISHED_CAPTURE
|| priv->vaddr == NULL) {
ret = 0; /*end. */
} else {
int maxsize =
priv->out.byte_per_pix *
priv->out.width_aligned * priv->out.height;
if (pos < maxsize) {
int rsize =
min((int)count, (maxsize - (int)pos));
copied =
copy_to_user(buf, priv->vaddr + pos,
rsize);
if (copied) {
pr_err
("%s %d copy_to_user failed\n",
__func__, rsize);
}
ret = rsize;
} else {
ret = 0; /*end. */
}
}
}
if (ret > 0) {
pos += ret;
*ppos = pos;
}
return ret;
}
static const struct file_operations amvideocap_fops = {
.owner = THIS_MODULE,
.open = amvideocap_open,
.read = amvideocap_read,
.mmap = amvideocap_mmap,
.release = amvideocap_release,
.unlocked_ioctl = amvideocap_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = amvideocap_compat_ioctl,
#endif
/* / .poll = amvideocap_poll, */
};
static ssize_t show_amvideocap_config(struct class *class,
struct class_attribute *attr,
char *buf)
{
char *pbuf = buf;
ssize_t size = 0;
pbuf += sprintf(pbuf, "at_flags:%d\n", getgctrl()->want.at_flags);
pbuf += sprintf(pbuf, "timestampms:%lld\n",
getgctrl()->want.timestamp_ms);
pbuf += sprintf(pbuf, "width:%d\n", getgctrl()->want.width);
pbuf += sprintf(pbuf, "height:%d\n", getgctrl()->want.height);
pbuf += sprintf(pbuf, "format:%d\n", getgctrl()->want.fmt);
pbuf += sprintf(pbuf, "waitmaxms:%lld\n", getgctrl()->wait_max_ms);
size = pbuf - buf;
return size;
}