diff options
| -rw-r--r-- | board/gdsys/common/osd.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/board/gdsys/common/osd.c b/board/gdsys/common/osd.c index 354bf0b6e0..c49cd9a619 100644 --- a/board/gdsys/common/osd.c +++ b/board/gdsys/common/osd.c @@ -26,10 +26,6 @@ #define PIXCLK_640_480_60 25180000 -#define BASE_WIDTH 32 -#define BASE_HEIGHT 16 -#define BUFSIZE (BASE_WIDTH * BASE_HEIGHT) - enum { CH7301_CM = 0x1c, /* Clock Mode Register */ CH7301_IC = 0x1d, /* Input Clock Register */ @@ -51,6 +47,11 @@ enum { CH7301_DSP = 0x56, /* DVI Sync polarity Register */ }; +unsigned int base_width; +unsigned int base_height; +size_t bufsize; +u16 *buf; + unsigned int max_osd_screen = CONFIG_SYS_OSD_SCREENS - 1; #ifdef CONFIG_SYS_CH7301 @@ -264,7 +265,7 @@ static int osd_write_videomem(unsigned screen, unsigned offset, unsigned int k; for (k = 0; k < charcount; ++k) { - if (offset + k >= BUFSIZE) + if (offset + k >= bufsize) return -1; FPGA_SET_REG(screen, videomem[offset + k], data[k]); } @@ -283,7 +284,6 @@ static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) unsigned len; u8 color; unsigned int k; - u16 buf[BUFSIZE]; char *text; int res; @@ -297,12 +297,12 @@ static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) color = simple_strtoul(argv[3], NULL, 16); text = argv[4]; charcount = strlen(text); - len = (charcount > BUFSIZE) ? BUFSIZE : charcount; + len = (charcount > bufsize) ? bufsize : charcount; for (k = 0; k < len; ++k) buf[k] = (text[k] << 8) | color; - res = osd_write_videomem(screen, y * BASE_WIDTH + x, buf, len); + res = osd_write_videomem(screen, y * base_width + x, buf, len); if (res < 0) return res; } @@ -314,8 +314,6 @@ int osd_probe(unsigned screen) { u16 version; u16 features; - unsigned width; - unsigned height; u8 value; #ifdef CONFIG_SYS_CH7301 int old_bus = i2c_get_bus_num(); @@ -324,11 +322,15 @@ int osd_probe(unsigned screen) FPGA_GET_REG(0, osd.version, &version); FPGA_GET_REG(0, osd.features, &features); - width = ((features & 0x3f00) >> 8) + 1; - height = (features & 0x001f) + 1; + base_width = ((features & 0x3f00) >> 8) + 1; + base_height = (features & 0x001f) + 1; + bufsize = base_width * base_height; + buf = malloc(sizeof(u16) * bufsize); + if (!buf) + return -1; printf("OSD%d: Digital-OSD version %01d.%02d, %d" "x%d characters\n", - screen, version/100, version%100, width, height); + screen, version/100, version%100, base_width, base_height); #ifdef CONFIG_SYS_CH7301 i2c_set_bus_num(ch7301_i2c[screen]); @@ -394,7 +396,7 @@ int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) unsigned x; unsigned y; unsigned k; - u16 buffer[BASE_WIDTH]; + u16 buffer[base_width]; char *rp; u16 *wp = buffer; unsigned count = (argc > 4) ? @@ -419,13 +421,13 @@ int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) rp += 4; wp++; - if (wp - buffer > BASE_WIDTH) + if (wp - buffer > base_width) break; } for (k = 0; k < count; ++k) { unsigned offset = - y * BASE_WIDTH + x + k * (wp - buffer); + y * base_width + x + k * (wp - buffer); osd_write_videomem(screen, offset, buffer, wp - buffer); } |