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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <eos.h>
#include <cam.h>
#include <i2c.h>
#include <i2c/ov2640.h>
#include <eve/eve.h>
#include <eve/eve_kbd.h>
#include <eve/eve_font.h>
#include <eve/screen/window.h>
#include <eve/screen/page.h>
#include <eve/screen/form.h>
#include <eve/widget/widgets.h>
#include <app/app_root.h>
#include <board.h>
#include "cam.h"
#include <stdio.h>
static int cam_init = 0;
static int cam_capture = 0;
#define CHUNK_SIZE 512
#define CAM_W 640
#define CAM_H 480
static void transfer_chunk(uint8_t *fbuf, size_t size, int first, int last, uint32_t addr) {
int rv;
eos_cam_fbuf_read(fbuf, size, first);
if (last) {
eos_cam_fbuf_done();
eos_cam_capture();
}
eos_spi_select(EOS_SPI_DEV_EVE);
eve_cmd_burst_start();
if (first) eve_cmd(CMD_LOADIMAGE, "ww+", addr, EVE_OPT_NODL);
eve_cmd_write(fbuf, size);
if (last) eve_cmd_end();
eve_cmd_burst_end();
rv = eve_cmd_exec(last);
if (rv) printf("CMD EXEC ERR\n");
if (!last) eos_spi_select(EOS_SPI_DEV_CAM);
}
static void transfer_img(uint32_t addr) {
int i;
uint32_t fb_size;
uint32_t fb_div;
uint32_t fb_mod;
uint8_t fbuf[CHUNK_SIZE];
cam_capture = 1;
fb_size = eos_cam_fbuf_size();
fb_div = fb_size / CHUNK_SIZE;
fb_mod = fb_size % CHUNK_SIZE;
for (i=0; i<fb_div; i++) {
transfer_chunk(fbuf, CHUNK_SIZE, i == 0, (fb_mod == 0) && (i + 1 == fb_div), addr);
}
if (fb_mod) {
transfer_chunk(fbuf, fb_mod, fb_size < CHUNK_SIZE, 1, addr);
}
printf("CAPTURE DONE. ADDR:%x SIZE:%d\n", addr, fb_size);
}
static void user_handler(unsigned char type, unsigned char *buffer, uint16_t size) {
eos_spi_select(EOS_SPI_DEV_CAM);
if (eos_cam_capture_done()) {
EVEWindowRoot *root = app_root();
uint32_t addr = root->mem_next;
transfer_img(addr);
eve_window_root_draw(root);
}
eos_spi_deselect();
eos_evtq_push(EOS_EVT_USER, NULL, 0);
}
static void image_draw(EVEFreeWidget *widget) {
EVEWindowRoot *root = widget->w.page->v.window->root;
uint32_t addr = root->mem_next;
if (cam_capture) {
// eve_freew_tag(widget);
eve_cmd_dl(TAG_MASK(0));
eve_cmd_dl(BEGIN(EVE_BITMAPS));
// eve_cmd_dl(BITMAP_HANDLE(15));
eve_cmd_dl(BITMAP_SOURCE(addr));
eve_cmd_dl(BITMAP_LAYOUT(EVE_RGB565, CAM_W * 2, CAM_H));
eve_cmd_dl(BITMAP_LAYOUT_H(CAM_W * 2, CAM_H));
eve_cmd_dl(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, CAM_H, CAM_W));
eve_cmd_dl(BITMAP_SIZE_H(CAM_H, CAM_W));
eve_cmd(CMD_LOADIDENTITY, "");
eve_cmd(CMD_TRANSLATE, "ww", CAM_H * 65536, 0);
eve_cmd(CMD_ROTATE, "w", 90 * 65536 / 360);
eve_cmd(CMD_SETMATRIX, "");
eve_cmd_dl(VERTEX2F(0, 0));
eve_cmd_dl(TAG_MASK(1));
}
}
static int image_touch(EVEFreeWidget *widget, EVETouch *touch, uint16_t evt) {
return 0;
}
void fbuf_print(uint8_t *fbuf, size_t size) {
int i;
for (i=0; i<size; i++) {
if (i % 128 == 0) printf("\n");
printf("%.2x", fbuf[i]);
}
}
void app_cam(EVEWindow *window, EVEViewStack *stack) {
EVEWidgetSpec spec[] = {
{
.widget.type = EVE_WIDGET_TYPE_FREE,
.widget.g.h = CAM_W,
.widget.spec.free.draw = image_draw,
.widget.spec.free.touch = image_touch,
},
};
EVEForm *form = eve_form_create(window, stack, spec, 1, NULL, NULL, app_cam_close);
int rv = EOS_OK;
eve_gpio_set(EVE_GPIO_CAM, 1);
eos_time_sleep(100);
eos_i2c_speed(100000);
rv = eos_i2c_start();
if (!rv) rv = eos_ov2640_init();
if (!rv) rv = eos_ov2640_set_pixfmt(PIXFORMAT_JPEG);
if (!rv) rv = eos_ov2640_set_framesize(FRAMESIZE_VGA);
eos_i2c_stop();
eos_i2c_speed(EOS_I2C_SPEED);
if (!rv) {
printf("CAM INIT\n");
} else {
printf("CAM INIT ERR:%d\n", rv);
}
eos_evtq_set_handler(EOS_EVT_USER, user_handler);
eos_evtq_push(EOS_EVT_USER, NULL, 0);
eos_spi_select(EOS_SPI_DEV_CAM);
eos_cam_capture();
eos_spi_select(EOS_SPI_DEV_EVE);
}
void app_cam_close(EVEForm *form) {
eve_form_destroy(form);
eve_gpio_set(EVE_GPIO_CAM, 0);
eos_evtq_get(EOS_EVT_USER, NULL, NULL);
eos_evtq_set_handler(EOS_EVT_USER, NULL);
}
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