/******************************************************************************* Samsung S3C2400 / S3C2410 / S3C2440 *******************************************************************************/ #include "emu.h" #include "cpu/arm7/arm7.h" #include "cpu/arm7/arm7core.h" //#include "includes/s3c24xx.h" #include "coreutil.h" /******************************************************************************* MACROS & CONSTANTS *******************************************************************************/ //#define UART_PRINTF #define CLOCK_MULTIPLIER 1 #define BIT(x,n) (((x)>>(n))&1) #define BITS(x,m,n) (((x)>>(n))&(((UINT32)1<<((m)-(n)+1))-1)) #define CLR_BITS(x,m,n) ((x) & ~((((UINT32)1 << ((m) - (n) + 1)) - 1) << n)) #if defined(DEVICE_S3C2400) #define S3C24XX_TPAL_GET_TPALEN(x) BIT(x,16) #define S3C24XX_TPAL_GET_TPALVAL(x) BITS(x,15,0) #else #define S3C24XX_TPAL_GET_TPALEN(x) BIT(x,24) #define S3C24XX_TPAL_GET_TPALVAL(x) BITS(x,23,0) #endif #define S3C24XX_DCON_GET_TC(x) BITS(x,19,0) #define S3C24XX_DCON_GET_DSZ(x) BITS(x,21,20) #define S3C24XX_DCON_GET_RELOAD(x) BIT(x,22) #define S3C24XX_DCON_GET_SWHWSEL(x) BIT(x,23) #define S3C24XX_DSTAT_GET_CURR_TC(x) BITS(x,19,0) #define S3C24XX_DSTAT_SET_CURR_TC(x,m) (CLR_BITS(x,19,0) | m) #define S3C24XX_DMASKTRIG_GET_ON_OFF(x) BIT(x,1) #if defined(DEVICE_S3C2400) #define S3C24XX_DCON_GET_HWSRCSEL(x) BITS(x,25,24) #define S3C24XX_DCON_GET_SERVMODE(x) BIT(x,26) #define S3C24XX_DCON_GET_TSZ(x) BIT(x,27) #define S3C24XX_DCON_GET_INT(x) BIT(x,28) #define S3C24XX_DISRC_GET_SADDR(x) BITS(x,28,0) #define S3C24XX_DIDST_GET_DADDR(x) BITS(x,28,0) #define S3C24XX_DCSRC_GET_CURR_SRC(x) BITS(x,28,0) #define S3C24XX_DCSRC_SET_CURR_SRC(x,m) (CLR_BITS(x,28,0) | m) #define S3C24XX_DCDST_GET_CURR_DST(x) BITS(x,28,0) #define S3C24XX_DCDST_SET_CURR_DST(x,m) (CLR_BITS(x,28,0) | m) #else #define S3C24XX_DCON_GET_HWSRCSEL(x) BITS(x,26,24) #define S3C24XX_DCON_GET_SERVMODE(x) BIT(x,27) #define S3C24XX_DCON_GET_TSZ(x) BIT(x,28) #define S3C24XX_DCON_GET_INT(x) BIT(x,29) #define S3C24XX_DISRC_GET_SADDR(x) BITS(x,30,0) #define S3C24XX_DIDST_GET_DADDR(x) BITS(x,30,0) #define S3C24XX_DCSRC_GET_CURR_SRC(x) BITS(x,30,0) #define S3C24XX_DCSRC_SET_CURR_SRC(x,m) (CLR_BITS(x,30,0) | m) #define S3C24XX_DCDST_GET_CURR_DST(x) BITS(x,30,0) #define S3C24XX_DCDST_SET_CURR_DST(x,m) (CLR_BITS(x,30,0) | m) #endif /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ #if defined(DEVICE_S3C2400) typedef s3c2400_interface s3c24xx_interface; #elif defined(DEVICE_S3C2410) typedef s3c2410_interface s3c24xx_interface; #elif defined(DEVICE_S3C2440) typedef s3c2440_interface s3c24xx_interface; #endif /*************************************************************************** PROTOTYPES ***************************************************************************/ static UINT32 s3c24xx_get_fclk( device_t *device); static UINT32 s3c24xx_get_hclk( device_t *device); static UINT32 s3c24xx_get_pclk( device_t *device); static void s3c24xx_dma_request_iis( device_t *device); static void s3c24xx_dma_request_pwm( device_t *device); /*************************************************************************** INLINE FUNCTIONS ***************************************************************************/ INLINE s3c24xx_t *get_token( device_t *device) { assert(device != NULL); #if defined(DEVICE_S3C2400) return (s3c24xx_t *)downcast(device)->token(); #elif defined(DEVICE_S3C2410) return (s3c24xx_t *)downcast(device)->token(); #elif defined(DEVICE_S3C2440) return (s3c24xx_t *)downcast(device)->token(); #endif } /*************************************************************************** IMPLEMENTATION ***************************************************************************/ /* ... */ static void s3c24xx_reset( device_t *device) { device_t *cpu = device->machine().device("maincpu"); verboselog( device->machine(), 1, "reset\n"); cpu->reset(); device->reset(); } INLINE int iface_core_pin_r( device_t *device, int pin) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->core.pin_r) { return (s3c24xx->iface->core.pin_r)( device, pin); } else { return 0; } } /* LCD Controller */ static void s3c24xx_lcd_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_lcd_t *lcd = &s3c24xx->lcd; memset( &lcd->regs, 0, sizeof( lcd->regs)); #if defined(DEVICE_S3C2410) lcd->regs.lcdintmsk = 3; lcd->regs.lpcsel = 4; #elif defined(DEVICE_S3C2440) lcd->regs.lcdintmsk = 3; lcd->regs.tconsel = 0x0F84; #endif lcd->vramaddr_cur = lcd->vramaddr_max = 0; lcd->offsize = 0; lcd->pagewidth_cur = lcd->pagewidth_max = 0; lcd->bppmode = 0; lcd->bswp = lcd->hwswp = 0; lcd->vpos = lcd->hpos = 0; lcd->framerate = 0; lcd->tpal = 0; lcd->hpos_min = lcd->hpos_max = lcd->vpos_min = lcd->vpos_max = 0; lcd->dma_data = lcd->dma_bits = 0; lcd->timer->adjust( attotime::never); } static rgb_t s3c24xx_get_color_tft_16( device_t *device, UINT16 data) { s3c24xx_t *s3c24xx = get_token( device); if ((s3c24xx->lcd.regs.lcdcon5 & (1 << 11)) == 0) { UINT8 r, g, b, i; r = (BITS( data, 15, 11) << 3); g = (BITS( data, 10, 6) << 3); b = (BITS( data, 5, 1) << 3); i = BIT( data, 1) << 2; return MAKE_RGB( r | i, g | i, b | i); } else { UINT8 r, g, b; r = BITS( data, 15, 11) << 3; g = BITS( data, 10, 5) << 2; b = BITS( data, 4, 0) << 3; return MAKE_RGB( r, g, b); } } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static rgb_t s3c24xx_get_color_tft_24( device_t *device, UINT32 data) { UINT8 r, g, b; r = BITS( data, 23, 16); g = BITS( data, 15, 8); b = BITS( data, 7, 0); return MAKE_RGB( r, g, b); } #endif static rgb_t s3c24xx_get_color_stn_12( device_t *device, UINT16 data) { UINT8 r, g, b; r = BITS( data, 11, 8) << 4; g = BITS( data, 7, 4) << 4; b = BITS( data, 3, 0) << 4; return MAKE_RGB( r, g, b); } static rgb_t s3c24xx_get_color_stn_08( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); UINT8 r, g, b; r = ((s3c24xx->lcd.regs.redlut >> (BITS( data, 7, 5) << 2)) & 0xF) << 4; g = ((s3c24xx->lcd.regs.greenlut >> (BITS( data, 4, 2) << 2)) & 0xF) << 4; b = ((s3c24xx->lcd.regs.bluelut >> (BITS( data, 1, 0) << 2)) & 0xF) << 4; return MAKE_RGB( r, g, b); } static rgb_t s3c24xx_get_color_stn_01( device_t *device, UINT8 data) { if ((data & 1) == 0) { return RGB_BLACK; } else { return RGB_WHITE; } } static rgb_t s3c24xx_get_color_stn_02( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); UINT8 r, g, b; r = g = b = ((s3c24xx->lcd.regs.bluelut >> (BITS( data, 1, 0) << 2)) & 0xF) << 4; return MAKE_RGB( r, g, b); } static rgb_t s3c24xx_get_color_stn_04( device_t *device, UINT8 data) { UINT8 r, g, b; r = g = b = BITS( data, 3, 0) << 4; return MAKE_RGB( r, g, b); } static rgb_t s3c24xx_get_color_tpal( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); #if defined(DEVICE_S3C2400) return s3c24xx_get_color_tft_16( device, S3C24XX_TPAL_GET_TPALVAL( s3c24xx->lcd.tpal)); #else return s3c24xx_get_color_tft_24( device, S3C24XX_TPAL_GET_TPALVAL( s3c24xx->lcd.tpal)); #endif } static void s3c24xx_lcd_dma_reload( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx->lcd.vramaddr_cur = s3c24xx->lcd.regs.lcdsaddr1 << 1; s3c24xx->lcd.vramaddr_max = ((s3c24xx->lcd.regs.lcdsaddr1 & 0xFFE00000) | s3c24xx->lcd.regs.lcdsaddr2) << 1; s3c24xx->lcd.offsize = BITS( s3c24xx->lcd.regs.lcdsaddr3, 21, 11); s3c24xx->lcd.pagewidth_cur = 0; s3c24xx->lcd.pagewidth_max = BITS( s3c24xx->lcd.regs.lcdsaddr3, 10, 0); if (s3c24xx->lcd.pagewidth_max == 0) { if (s3c24xx->lcd.bppmode == S3C24XX_BPPMODE_STN_12_P) { s3c24xx->lcd.pagewidth_max = (s3c24xx->lcd.hpos_max - s3c24xx->lcd.hpos_min + 1) / 16 * 12; } } verboselog( device->machine(), 3, "LCD - vramaddr %08X %08X offsize %08X pagewidth %08X\n", s3c24xx->lcd.vramaddr_cur, s3c24xx->lcd.vramaddr_max, s3c24xx->lcd.offsize, s3c24xx->lcd.pagewidth_max); s3c24xx->lcd.dma_data = 0; s3c24xx->lcd.dma_bits = 0; } static void s3c24xx_lcd_dma_init( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx->lcd.bppmode = BITS( s3c24xx->lcd.regs.lcdcon1, 4, 1); s3c24xx_lcd_dma_reload( device); s3c24xx->lcd.bswp = BIT( s3c24xx->lcd.regs.lcdcon5, 1); s3c24xx->lcd.hwswp = BIT( s3c24xx->lcd.regs.lcdcon5, 0); s3c24xx->lcd.tpal = s3c24xx->lcd.regs.tpal; verboselog( device->machine(), 3, "LCD - bppmode %d hwswp %d bswp %d\n", s3c24xx->lcd.bppmode, s3c24xx->lcd.hwswp, s3c24xx->lcd.bswp); s3c24xx->lcd.dma_data = 0; s3c24xx->lcd.dma_bits = 0; } #if 0 static UINT32 s3c24xx_lcd_dma_read( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); address_space* space = device->machine().device( "maincpu")->memory().space( AS_PROGRAM); UINT8 *vram, data[4]; vram = (UINT8 *)space->get_read_ptr( s3c24xx->lcd.vramaddr_cur); for (int i = 0; i < 2; i++) { data[i*2+0] = *vram++; data[i*2+1] = *vram++; s3c24xx->lcd.vramaddr_cur += 2; s3c24xx->lcd.pagewidth_cur++; if (s3c24xx->lcd.pagewidth_cur >= s3c24xx->lcd.pagewidth_max) { s3c24xx->lcd.vramaddr_cur += s3c24xx->lcd.offsize << 1; s3c24xx->lcd.pagewidth_cur = 0; vram = (UINT8 *)space->get_read_ptr( s3c24xx->lcd.vramaddr_cur); } } if (s3c24xx->lcd.hwswp == 0) { if (s3c24xx->lcd.bswp == 0) { return (data[3] << 24) | (data[2] << 16) | (data[1] << 8) | (data[0] << 0); } else { return (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | (data[3] << 0); } } else { if (s3c24xx->lcd.bswp == 0) { return (data[1] << 24) | (data[0] << 16) | (data[3] << 8) | (data[2] << 0); } else { return (data[2] << 24) | (data[3] << 16) | (data[0] << 8) | (data[1] << 0); } } } #endif static UINT32 s3c24xx_lcd_dma_read( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); address_space* space = device->machine().device( "maincpu")->memory().space( AS_PROGRAM); UINT8 *vram, data[4]; vram = (UINT8 *)space->get_read_ptr( s3c24xx->lcd.vramaddr_cur); for (int i = 0; i < 2; i++) { if (s3c24xx->lcd.hwswp == 0) { if (s3c24xx->lcd.bswp == 0) { if ((s3c24xx->lcd.vramaddr_cur & 2) == 0) { data[i*2+0] = *(vram + 3); data[i*2+1] = *(vram + 2); } else { data[i*2+0] = *(vram - 1); data[i*2+1] = *(vram - 2); } } else { data[i*2+0] = *(vram + 0); data[i*2+1] = *(vram + 1); } } else { if (s3c24xx->lcd.bswp == 0) { data[i*2+0] = *(vram + 1); data[i*2+1] = *(vram + 0); } else { if ((s3c24xx->lcd.vramaddr_cur & 2) == 0) { data[i*2+0] = *(vram + 2); data[i*2+1] = *(vram + 3); } else { data[i*2+0] = *(vram - 2); data[i*2+1] = *(vram - 1); } } } s3c24xx->lcd.vramaddr_cur += 2; s3c24xx->lcd.pagewidth_cur++; if (s3c24xx->lcd.pagewidth_cur >= s3c24xx->lcd.pagewidth_max) { s3c24xx->lcd.vramaddr_cur += s3c24xx->lcd.offsize << 1; s3c24xx->lcd.pagewidth_cur = 0; vram = (UINT8 *)space->get_read_ptr( s3c24xx->lcd.vramaddr_cur); } else { vram += 2; } } if (s3c24xx->iface->lcd.flags & S3C24XX_INTERFACE_LCD_REVERSE) { return (data[3] << 24) | (data[2] << 16) | (data[1] << 8) | (data[0] << 0); } else { return (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | (data[3] << 0); } } static UINT32 s3c24xx_lcd_dma_read_bits( device_t *device, int count) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data; if (count <= s3c24xx->lcd.dma_bits) { s3c24xx->lcd.dma_bits -= count; data = BITS( s3c24xx->lcd.dma_data, 31, 32 - count); s3c24xx->lcd.dma_data = s3c24xx->lcd.dma_data << count; } else { if (s3c24xx->lcd.dma_bits == 0) { if (count == 32) { data = s3c24xx_lcd_dma_read( device); } else { UINT32 temp = s3c24xx_lcd_dma_read( device); data = BITS( temp, 31, 32 - count); s3c24xx->lcd.dma_data = temp << count; s3c24xx->lcd.dma_bits = 32 - count; } } else { UINT32 temp = s3c24xx_lcd_dma_read( device); data = (s3c24xx->lcd.dma_data >> (32 - count)) | BITS( temp, 31, 32 - (count - s3c24xx->lcd.dma_bits)); s3c24xx->lcd.dma_data = temp << (count - s3c24xx->lcd.dma_bits); s3c24xx->lcd.dma_bits = 32 - (count - s3c24xx->lcd.dma_bits); } } return data; } static void s3c24xx_lcd_render_tpal( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 color = s3c24xx_get_color_tpal( device); for (int y = s3c24xx->lcd.vpos_min; y <= s3c24xx->lcd.vpos_max; y++) { UINT32 *scanline = &bitmap.pix32(y, s3c24xx->lcd.hpos_min); for (int x = s3c24xx->lcd.hpos_min; x <= s3c24xx->lcd.hpos_max; x++) { *scanline++ = color; } } } static void s3c24xx_lcd_render_stn_01( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 32; j++) { if (s3c24xx->iface->lcd.flags & S3C24XX_INTERFACE_LCD_REVERSE) { *scanline++ = s3c24xx_get_color_stn_01( device, data & 0x01); data = data >> 1; } else { *scanline++ = s3c24xx_get_color_stn_01( device, (data >> 31) & 0x01); data = data << 1; } s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 4)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_stn_02( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 16; j++) { *scanline++ = s3c24xx_get_color_stn_02( device, (data >> 30) & 0x03); data = data << 2; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 3)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_stn_04( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 8; j++) { *scanline++ = s3c24xx_get_color_stn_04( device, (data >> 28) & 0x0F); data = data << 4; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 2)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_stn_08( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 4; j++) { *scanline++ = s3c24xx_get_color_stn_08( device, (data >> 24) & 0xFF); data = data << 8; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 1)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_stn_12_p( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 16; i++) { *scanline++ = s3c24xx_get_color_stn_12( device, s3c24xx_lcd_dma_read_bits( device, 12)); s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max * 16 / 12)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } static void s3c24xx_lcd_render_stn_12_u( device_t *device) // not tested { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 2; j++) { *scanline++ = s3c24xx_get_color_stn_12( device, (data >> 16) & 0x0FFF); data = data << 16; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 0)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_tft_01( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 32; j++) { *scanline++ = palette_get_color( device->machine(), (data >> 31) & 0x01); data = data << 1; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 4)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_tft_02( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 16; j++) { *scanline++ = palette_get_color( device->machine(), (data >> 30) & 0x03); data = data << 2; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 3)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_tft_04( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 8; j++) { *scanline++ = palette_get_color( device->machine(), (data >> 28) & 0x0F); data = data << 4; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 2)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_tft_08( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 4; j++) { *scanline++ = palette_get_color( device->machine(), (data >> 24) & 0xFF); data = data << 8; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 1)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static void s3c24xx_lcd_render_tft_16( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); bitmap_rgb32 &bitmap = *s3c24xx->lcd.bitmap[0]; UINT32 *scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); for (int i = 0; i < 4; i++) { UINT32 data = s3c24xx_lcd_dma_read( device); for (int j = 0; j < 2; j++) { *scanline++ = s3c24xx_get_color_tft_16( device, (data >> 16) & 0xFFFF); data = data << 16; s3c24xx->lcd.hpos++; if (s3c24xx->lcd.hpos >= s3c24xx->lcd.hpos_min + (s3c24xx->lcd.pagewidth_max << 0)) { s3c24xx->lcd.vpos++; if (s3c24xx->lcd.vpos > s3c24xx->lcd.vpos_max) s3c24xx->lcd.vpos = s3c24xx->lcd.vpos_min; s3c24xx->lcd.hpos = s3c24xx->lcd.hpos_min; scanline = &bitmap.pix32(s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); } } } } static TIMER_CALLBACK( s3c24xx_lcd_timer_exp ) { device_t *device = (device_t *)ptr; s3c24xx_t *s3c24xx = get_token( device); screen_device *screen = machine.primary_screen; UINT32 tpalen; verboselog( machine, 2, "LCD timer callback\n"); s3c24xx->lcd.vpos = screen->vpos(); s3c24xx->lcd.hpos = screen->hpos(); verboselog( machine, 3, "LCD - vpos %d hpos %d\n", s3c24xx->lcd.vpos, s3c24xx->lcd.hpos); tpalen = S3C24XX_TPAL_GET_TPALEN( s3c24xx->lcd.tpal); if (tpalen == 0) { if (s3c24xx->lcd.vramaddr_cur >= s3c24xx->lcd.vramaddr_max) { s3c24xx_lcd_dma_reload( device); } verboselog( machine, 3, "LCD - vramaddr %08X\n", s3c24xx->lcd.vramaddr_cur); while (s3c24xx->lcd.vramaddr_cur < s3c24xx->lcd.vramaddr_max) { switch (s3c24xx->lcd.bppmode) { case S3C24XX_BPPMODE_STN_01 : s3c24xx_lcd_render_stn_01( device); break; case S3C24XX_BPPMODE_STN_02 : s3c24xx_lcd_render_stn_02( device); break; case S3C24XX_BPPMODE_STN_04 : s3c24xx_lcd_render_stn_04( device); break; case S3C24XX_BPPMODE_STN_08 : s3c24xx_lcd_render_stn_08( device); break; case S3C24XX_BPPMODE_STN_12_P : s3c24xx_lcd_render_stn_12_p( device); break; case S3C24XX_BPPMODE_STN_12_U : s3c24xx_lcd_render_stn_12_u( device); break; case S3C24XX_BPPMODE_TFT_01 : s3c24xx_lcd_render_tft_01( device); break; case S3C24XX_BPPMODE_TFT_02 : s3c24xx_lcd_render_tft_02( device); break; case S3C24XX_BPPMODE_TFT_04 : s3c24xx_lcd_render_tft_04( device); break; case S3C24XX_BPPMODE_TFT_08 : s3c24xx_lcd_render_tft_08( device); break; case S3C24XX_BPPMODE_TFT_16 : s3c24xx_lcd_render_tft_16( device); break; default : verboselog( machine, 0, "s3c24xx_lcd_timer_exp: bppmode %d not supported\n", s3c24xx->lcd.bppmode); break; } if ((s3c24xx->lcd.vpos == s3c24xx->lcd.vpos_min) && (s3c24xx->lcd.hpos == s3c24xx->lcd.hpos_min)) break; } } else { s3c24xx_lcd_render_tpal( device); } s3c24xx->lcd.timer->adjust( screen->time_until_pos( s3c24xx->lcd.vpos, s3c24xx->lcd.hpos)); } static void s3c24xx_video_start( device_t *device, running_machine &machine) { s3c24xx_t *s3c24xx = get_token( device); screen_device *screen = machine.primary_screen; s3c24xx->lcd.bitmap[0] = auto_bitmap_rgb32_alloc(machine, screen->width(), screen->height()); s3c24xx->lcd.bitmap[1] = auto_bitmap_rgb32_alloc(machine, screen->width(), screen->height()); } static void bitmap_blend( bitmap_rgb32 &bitmap_dst, bitmap_rgb32 &bitmap_src_1, bitmap_rgb32 &bitmap_src_2) { for (int y = 0; y < bitmap_dst.height(); y++) { UINT32 *line0 = &bitmap_src_1.pix32(y); UINT32 *line1 = &bitmap_src_2.pix32(y); UINT32 *line2 = &bitmap_dst.pix32(y); for (int x = 0; x < bitmap_dst.width(); x++) { UINT32 color0 = line0[x]; UINT32 color1 = line1[x]; UINT16 r0 = (color0 >> 16) & 0x000000ff; UINT16 g0 = (color0 >> 8) & 0x000000ff; UINT16 b0 = (color0 >> 0) & 0x000000ff; UINT16 r1 = (color1 >> 16) & 0x000000ff; UINT16 g1 = (color1 >> 8) & 0x000000ff; UINT16 b1 = (color1 >> 0) & 0x000000ff; UINT8 r = (UINT8)((r0 + r1) >> 1); UINT8 g = (UINT8)((g0 + g1) >> 1); UINT8 b = (UINT8)((b0 + b1) >> 1); line2[x] = (r << 16) | (g << 8) | b; } } } static UINT32 s3c24xx_video_update( device_t *device, screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->lcd.regs.lcdcon1 & (1 << 0)) { if (s3c24xx->lcd.framerate >= 1195) { bitmap_blend( bitmap, *s3c24xx->lcd.bitmap[0], *s3c24xx->lcd.bitmap[1]); copybitmap( *s3c24xx->lcd.bitmap[1], *s3c24xx->lcd.bitmap[0], 0, 0, 0, 0, cliprect); } else { copybitmap( bitmap, *s3c24xx->lcd.bitmap[0], 0, 0, 0, 0, cliprect); } s3c24xx_lcd_dma_init( device); } return 0; } #if defined(DEVICE_S3C2400) READ32_DEVICE_HANDLER( s3c2400_lcd_r ) #elif defined(DEVICE_S3C2410) READ32_DEVICE_HANDLER( s3c2410_lcd_r ) #elif defined(DEVICE_S3C2440) READ32_DEVICE_HANDLER( s3c2440_lcd_r ) #endif { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->lcd.regs)[offset]; switch (offset) { case S3C24XX_LCDCON1 : { // make sure line counter is going UINT32 vpos = device->machine().primary_screen->vpos(); if (vpos < s3c24xx->lcd.vpos_min) vpos = s3c24xx->lcd.vpos_min; if (vpos > s3c24xx->lcd.vpos_max) vpos = s3c24xx->lcd.vpos_max; data = (data & ~0xFFFC0000) | ((s3c24xx->lcd.vpos_max - vpos) << 18); } break; case S3C24XX_LCDCON5 : { UINT32 vpos = device->machine().primary_screen->vpos(); data = data & ~0x00018000; if (vpos < s3c24xx->lcd.vpos_min) data = data | 0x00000000; if (vpos > s3c24xx->lcd.vpos_max) data = data | 0x00018000; // todo: 00 = VSYNC, 01 = BACK Porch, 10 = ACTIVE, 11 = FRONT Porch } break; } verboselog( device->machine(), 9, "(LCD) %08X -> %08X\n", S3C24XX_BASE_LCD + (offset << 2), data); return data; } static int s3c24xx_lcd_configure_tft( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); screen_device *screen = device->machine().primary_screen; UINT32 vspw, vbpd, lineval, vfpd, hspw, hbpd, hfpd, hozval, clkval, hclk; double framerate, vclk; UINT32 width, height; rectangle visarea; verboselog( device->machine(), 5, "s3c24xx_lcd_configure_tft\n"); vspw = BITS( s3c24xx->lcd.regs.lcdcon2, 5, 0); vbpd = BITS( s3c24xx->lcd.regs.lcdcon2, 31, 24); lineval = BITS( s3c24xx->lcd.regs.lcdcon2, 23, 14); vfpd = BITS( s3c24xx->lcd.regs.lcdcon2, 13, 6); hspw = BITS( s3c24xx->lcd.regs.lcdcon4, 7, 0); hbpd = BITS( s3c24xx->lcd.regs.lcdcon3, 25, 19); hfpd = BITS( s3c24xx->lcd.regs.lcdcon3, 7, 0); hozval = BITS( s3c24xx->lcd.regs.lcdcon3, 18, 8); clkval = BITS( s3c24xx->lcd.regs.lcdcon1, 17, 8); hclk = s3c24xx_get_hclk( device); verboselog( device->machine(), 3, "LCD - vspw %d vbpd %d lineval %d vfpd %d hspw %d hbpd %d hfpd %d hozval %d clkval %d hclk %d\n", vspw, vbpd, lineval, vfpd, hspw, hbpd, hfpd, hozval, clkval, hclk); vclk = (double)(hclk / ((clkval + 1) * 2)); verboselog( device->machine(), 3, "LCD - vclk %f\n", vclk); framerate = vclk / (((vspw + 1) + (vbpd + 1) + (lineval + 1) + (vfpd + 1)) * ((hspw + 1) + (hbpd + 1) + (hozval + 1) + (hfpd + 1))); verboselog( device->machine(), 3, "LCD - framerate %f\n", framerate); s3c24xx->lcd.framerate = framerate; width = (hspw + 1) + (hbpd + 1) + (hozval + 1) + (hfpd + 1); height = (vspw + 1) + (vbpd + 1) + (lineval + 1) + (vfpd + 1); visarea.min_x = (hspw + 1) + (hbpd + 1); visarea.min_y = (vspw + 1) + (vbpd + 1); visarea.max_x = visarea.min_x + (hozval + 1) - 1; visarea.max_y = visarea.min_y + (lineval + 1) - 1; verboselog( device->machine(), 3, "LCD - visarea min_x %d min_y %d max_x %d max_y %d\n", visarea.min_x, visarea.min_y, visarea.max_x, visarea.max_y); verboselog( device->machine(), 3, "video_screen_configure %d %d %f\n", width, height, s3c24xx->lcd.framerate); s3c24xx->lcd.hpos_min = (hspw + 1) + (hbpd + 1); s3c24xx->lcd.hpos_max = s3c24xx->lcd.hpos_min + (hozval + 1) - 1; s3c24xx->lcd.vpos_min = (vspw + 1) + (vbpd + 1); s3c24xx->lcd.vpos_max = s3c24xx->lcd.vpos_min + (lineval + 1) - 1; screen->configure( width, height, visarea, HZ_TO_ATTOSECONDS( s3c24xx->lcd.framerate)); return TRUE; } static int s3c24xx_lcd_configure_stn( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); screen_device *screen = device->machine().primary_screen; UINT32 pnrmode, bppmode, clkval, lineval, wdly, hozval, lineblank, wlh, hclk; double vclk, framerate; UINT32 width, height; rectangle visarea; verboselog( device->machine(), 5, "s3c24xx_lcd_configure_stn\n"); pnrmode = BITS( s3c24xx->lcd.regs.lcdcon1, 6, 5); bppmode = BITS( s3c24xx->lcd.regs.lcdcon1, 4, 1); clkval = BITS( s3c24xx->lcd.regs.lcdcon1, 17, 8); lineval = BITS( s3c24xx->lcd.regs.lcdcon2, 23, 14); wdly = BITS( s3c24xx->lcd.regs.lcdcon3, 20, 19); hozval = BITS( s3c24xx->lcd.regs.lcdcon3, 18, 8); lineblank = BITS( s3c24xx->lcd.regs.lcdcon3, 7, 0); wlh = BITS( s3c24xx->lcd.regs.lcdcon4, 1, 0); hclk = s3c24xx_get_hclk( device); verboselog( device->machine(), 3, "LCD - pnrmode %d bppmode %d clkval %d lineval %d wdly %d hozval %d lineblank %d wlh %d hclk %d\n", pnrmode, bppmode, clkval, lineval, wdly, hozval, lineblank, wlh, hclk); if (clkval == 0) { return FALSE; } vclk = (double)(hclk / ((clkval + 0) * 2)); verboselog( device->machine(), 3, "LCD - vclk %f\n", vclk); framerate = 1 / (((1 / vclk) * (hozval + 1) + (1 / hclk) * ((1 << (4 + wlh)) + (1 << (4 + wdly)) + (lineblank * 8))) * (lineval + 1)); verboselog( device->machine(), 3, "LCD - framerate %f\n", framerate); switch (pnrmode) { case S3C24XX_PNRMODE_STN_04_SS : width = ((hozval + 1) * 4); break; case S3C24XX_PNRMODE_STN_04_DS : width = ((hozval + 1) * 4); break; case S3C24XX_PNRMODE_STN_08_SS : width = ((hozval + 1) * 8 / 3); break; default : width = 0; break; } height = lineval + 1; s3c24xx->lcd.framerate = framerate; visarea.set(0, width - 1, 0, height - 1); verboselog( device->machine(), 3, "LCD - visarea min_x %d min_y %d max_x %d max_y %d\n", visarea.min_x, visarea.min_y, visarea.max_x, visarea.max_y); verboselog( device->machine(), 3, "video_screen_configure %d %d %f\n", width, height, s3c24xx->lcd.framerate); s3c24xx->lcd.hpos_min = 0; s3c24xx->lcd.hpos_max = width - 1; s3c24xx->lcd.vpos_min = 0; s3c24xx->lcd.vpos_max = height - 1; screen->configure( width, height, visarea, HZ_TO_ATTOSECONDS( s3c24xx->lcd.framerate)); return TRUE; } static int s3c24xx_lcd_configure( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 bppmode; verboselog( device->machine(), 5, "s3c24xx_lcd_configure\n"); bppmode = BITS( s3c24xx->lcd.regs.lcdcon1, 4, 1); if ((bppmode & (1 << 3)) == 0) { return s3c24xx_lcd_configure_stn( device); } else { return s3c24xx_lcd_configure_tft( device); } } static void s3c24xx_lcd_start( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); screen_device *screen = device->machine().primary_screen; verboselog( device->machine(), 1, "LCD start\n"); if (s3c24xx_lcd_configure( device)) { s3c24xx_lcd_dma_init( device); s3c24xx->lcd.timer->adjust( screen->time_until_pos( s3c24xx->lcd.vpos_min, s3c24xx->lcd.hpos_min)); } } static void s3c24xx_lcd_stop( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "LCD stop\n"); s3c24xx->lcd.timer->adjust( attotime::never); } static void s3c24xx_lcd_recalc( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->lcd.regs.lcdcon1 & (1 << 0)) { s3c24xx_lcd_start( device); } else { s3c24xx_lcd_stop( device); } } static WRITE32_DEVICE_HANDLER( s3c24xx_lcd_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->lcd.regs)[offset]; verboselog( device->machine(), 9, "(LCD) %08X <- %08X\n", S3C24XX_BASE_LCD + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->lcd.regs)[offset]); switch (offset) { case S3C24XX_LCDCON1 : { if ((old_value & (1 << 0)) != (data & (1 << 0))) { s3c24xx_lcd_recalc( device); } } break; } } /* LCD Palette */ static READ32_DEVICE_HANDLER( s3c24xx_lcd_palette_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->lcdpal.regs.data[offset]; verboselog( device->machine(), 9, "(LCD) %08X -> %08X\n", S3C24XX_BASE_LCDPAL + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_lcd_palette_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(LCD) %08X <- %08X\n", S3C24XX_BASE_LCDPAL + (offset << 2), data); COMBINE_DATA(&s3c24xx->lcdpal.regs.data[offset]); if (mem_mask != 0xffffffff) { verboselog( device->machine(), 0, "s3c24xx_lcd_palette_w: unknown mask %08x\n", mem_mask); } palette_set_color( device->machine(), offset, s3c24xx_get_color_tft_16( device, data & 0xFFFF)); } /* Clock & Power Management */ static void s3c24xx_clkpow_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_clkpow_t *clkpow = &s3c24xx->clkpow; memset( &clkpow->regs, 0, sizeof( clkpow->regs)); #if defined(DEVICE_S3C2400) clkpow->regs.locktime = 0x00FFFFFF; clkpow->regs.mpllcon = 0x0005C080; clkpow->regs.upllcon = 0x00028080; clkpow->regs.clkcon = 0x0000FFF8; #elif defined(DEVICE_S3C2410) clkpow->regs.locktime = 0x00FFFFFF; clkpow->regs.mpllcon = 0x0005C080; clkpow->regs.upllcon = 0x00028080; clkpow->regs.clkcon = 0x0007FFF0; #elif defined(DEVICE_S3C2440) clkpow->regs.locktime = 0xFFFFFFFF; clkpow->regs.mpllcon = 0x00096030; clkpow->regs.upllcon = 0x0004D030; clkpow->regs.clkcon = 0x00FFFFF0; #endif clkpow->regs.clkslow = 4; } static UINT32 s3c24xx_get_fclk( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 mpllcon, clkslow, mdiv, pdiv, sdiv, fclk; double temp1, temp2; mpllcon = s3c24xx->clkpow.regs.mpllcon; mdiv = BITS( mpllcon, 19, 12); pdiv = BITS( mpllcon, 9, 4); sdiv = BITS( mpllcon, 1, 0); #if defined(DEVICE_S3C2400) || defined(DEVICE_S3C2410) temp1 = 1 * (mdiv + 8) * (double)device->clock(); #else temp1 = 2 * (mdiv + 8) * (double)device->clock(); #endif temp2 = (double)((pdiv + 2) * (1 << sdiv)); fclk = (UINT32)(temp1 / temp2); clkslow = s3c24xx->clkpow.regs.clkslow; if (BIT( clkslow, 4) == 1) { UINT32 slow_val = BITS( clkslow, 2, 0); if (slow_val > 0) { fclk = fclk / (2 * slow_val); } } return fclk; } static UINT32 s3c24xx_get_hclk( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); #if defined(DEVICE_S3C2400) || defined(DEVICE_S3C2410) return s3c24xx_get_fclk( device) / (BIT( s3c24xx->clkpow.regs.clkdivn, 1) + 1); #else switch (BITS( s3c24xx->clkpow.regs.clkdivn, 2, 1)) { case 0 : return s3c24xx_get_fclk( device) / 1; case 1 : return s3c24xx_get_fclk( device) / 2; case 2 : return s3c24xx_get_fclk( device) / (4 * (BIT( s3c24xx->clkpow.regs.camdivn, 9) + 1)); case 3 : return s3c24xx_get_fclk( device) / (3 * (BIT( s3c24xx->clkpow.regs.camdivn, 8) + 1)); } return 0; #endif } static UINT32 s3c24xx_get_pclk( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); return s3c24xx_get_hclk( device) / (1 << BIT( s3c24xx->clkpow.regs.clkdivn, 0)); } static READ32_DEVICE_HANDLER( s3c24xx_clkpow_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->clkpow.regs)[offset]; verboselog( device->machine(), 9, "(CLKPOW) %08X -> %08X\n", S3C24XX_BASE_CLKPOW + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_clkpow_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(CLKPOW) %08X <- %08X\n", S3C24XX_BASE_CLKPOW + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->clkpow.regs)[offset]); switch (offset) { case S3C24XX_MPLLCON : { verboselog( device->machine(), 5, "CLKPOW - fclk %d hclk %d pclk %d\n", s3c24xx_get_fclk( device), s3c24xx_get_hclk( device), s3c24xx_get_pclk( device)); device->machine().device( "maincpu")->set_unscaled_clock(s3c24xx_get_fclk( device) * CLOCK_MULTIPLIER); } break; case S3C24XX_CLKSLOW : { verboselog( device->machine(), 5, "CLKPOW - fclk %d hclk %d pclk %d\n", s3c24xx_get_fclk( device), s3c24xx_get_hclk( device), s3c24xx_get_pclk( device)); device->machine().device( "maincpu")->set_unscaled_clock(s3c24xx_get_fclk( device) * CLOCK_MULTIPLIER); } break; } } /* Interrupt Controller */ static void s3c24xx_irq_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_irq_t *irq = &s3c24xx->irq; memset( &irq->regs, 0, sizeof( irq->regs)); irq->line_irq = irq->line_fiq = CLEAR_LINE; irq->regs.intmsk = 0xFFFFFFFF; irq->regs.priority = 0x7F; #if defined(DEVICE_S3C2410) irq->regs.intsubmsk = 0x07FF; #elif defined(DEVICE_S3C2440) irq->regs.intsubmsk = 0xFFFF; #endif } static void s3c24xx_check_pending_irq( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 temp; // normal irq if ((s3c24xx->irq.regs.intpnd == 0) && (s3c24xx->irq.regs.intoffset == 0)) // without this "touryuu" crashes { temp = (s3c24xx->irq.regs.srcpnd & ~s3c24xx->irq.regs.intmsk) & ~s3c24xx->irq.regs.intmod; if (temp != 0) { UINT32 int_type = 0; verboselog( device->machine(), 5, "srcpnd %08X intmsk %08X intmod %08X\n", s3c24xx->irq.regs.srcpnd, s3c24xx->irq.regs.intmsk, s3c24xx->irq.regs.intmod); while ((temp & 1) == 0) { int_type++; temp = temp >> 1; } verboselog( device->machine(), 5, "intpnd set bit %d\n", int_type); s3c24xx->irq.regs.intpnd |= (1 << int_type); s3c24xx->irq.regs.intoffset = int_type; if (s3c24xx->irq.line_irq != ASSERT_LINE) { verboselog( device->machine(), 5, "ARM7_IRQ_LINE -> ASSERT_LINE\n"); device->machine().device("maincpu")->execute().set_input_line(ARM7_IRQ_LINE, ASSERT_LINE); s3c24xx->irq.line_irq = ASSERT_LINE; } } else { if (s3c24xx->irq.line_irq != CLEAR_LINE) { verboselog( device->machine(), 5, "srcpnd %08X intmsk %08X intmod %08X\n", s3c24xx->irq.regs.srcpnd, s3c24xx->irq.regs.intmsk, s3c24xx->irq.regs.intmod); verboselog( device->machine(), 5, "ARM7_IRQ_LINE -> CLEAR_LINE\n"); device->machine().device("maincpu")->execute().set_input_line(ARM7_IRQ_LINE, CLEAR_LINE); s3c24xx->irq.line_irq = CLEAR_LINE; } } } // fast irq temp = (s3c24xx->irq.regs.srcpnd & ~s3c24xx->irq.regs.intmsk) & s3c24xx->irq.regs.intmod; if (temp != 0) { UINT32 int_type = 0; while ((temp & 1) == 0) { int_type++; temp = temp >> 1; } if (s3c24xx->irq.line_fiq != ASSERT_LINE) { verboselog( device->machine(), 5, "ARM7_FIRQ_LINE -> ASSERT_LINE\n"); device->machine().device("maincpu")->execute().set_input_line(ARM7_FIRQ_LINE, ASSERT_LINE); s3c24xx->irq.line_fiq = ASSERT_LINE; } } else { if (s3c24xx->irq.line_fiq != CLEAR_LINE) { verboselog( device->machine(), 5, "ARM7_FIRQ_LINE -> CLEAR_LINE\n"); device->machine().device("maincpu")->execute().set_input_line(ARM7_FIRQ_LINE, CLEAR_LINE); s3c24xx->irq.line_fiq = CLEAR_LINE; } } } static void s3c24xx_request_irq( device_t *device, UINT32 int_type) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "request irq %d\n", int_type); s3c24xx->irq.regs.srcpnd |= (1 << int_type); s3c24xx_check_pending_irq( device); } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static void s3c24xx_check_pending_subirq( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 temp = s3c24xx->irq.regs.subsrcpnd & ~s3c24xx->irq.regs.intsubmsk; if (temp != 0) { UINT32 int_type = 0; while ((temp & 1) == 0) { int_type++; temp = temp >> 1; } s3c24xx_request_irq( device, MAP_SUBINT_TO_INT[int_type]); } } ATTR_UNUSED static void s3c24xx_request_subirq( device_t *device, UINT32 int_type) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "request subirq %d\n", int_type); s3c24xx->irq.regs.subsrcpnd |= (1 << int_type); s3c24xx_check_pending_subirq( device); } static void s3c24xx_check_pending_eint( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 temp = s3c24xx->gpio.regs.eintpend & ~s3c24xx->gpio.regs.eintmask; if (temp != 0) { UINT32 int_type = 0; while ((temp & 1) == 0) { int_type++; temp = temp >> 1; } if (int_type < 8) { s3c24xx_request_irq( device, S3C24XX_INT_EINT4_7); } else { s3c24xx_request_irq( device, S3C24XX_INT_EINT8_23); } } } ATTR_UNUSED static void s3c24xx_request_eint( device_t *device, UINT32 number) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "request external interrupt %d\n", number); if (number < 4) { s3c24xx_request_irq( device, S3C24XX_INT_EINT0 + number); } else { s3c24xx->gpio.regs.eintpend |= (1 << number); s3c24xx_check_pending_eint( device); } } #endif static READ32_DEVICE_HANDLER( s3c24xx_irq_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->irq.regs)[offset]; verboselog( device->machine(), 9, "(IRQ) %08X -> %08X\n", S3C24XX_BASE_INT + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_irq_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->irq.regs)[offset]; verboselog( device->machine(), 9, "(IRQ) %08X <- %08X\n", S3C24XX_BASE_INT + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->irq.regs)[offset]); switch (offset) { case S3C24XX_SRCPND : { s3c24xx->irq.regs.srcpnd = (old_value & ~data); // clear only the bit positions of SRCPND corresponding to those set to one in the data s3c24xx->irq.regs.intoffset = 0; // "This bit can be cleared automatically by clearing SRCPND and INTPND." s3c24xx_check_pending_irq( device); } break; case S3C24XX_INTMSK : { s3c24xx_check_pending_irq( device); } break; case S3C24XX_INTPND : { s3c24xx->irq.regs.intpnd = (old_value & ~data); // clear only the bit positions of INTPND corresponding to those set to one in the data s3c24xx->irq.regs.intoffset = 0; // "This bit can be cleared automatically by clearing SRCPND and INTPND." s3c24xx_check_pending_irq( device); } break; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) case S3C24XX_SUBSRCPND : { s3c24xx->irq.regs.subsrcpnd = (old_value & ~data); // clear only the bit positions of SRCPND corresponding to those set to one in the data s3c24xx_check_pending_subirq( device); } break; case S3C24XX_INTSUBMSK : { s3c24xx_check_pending_subirq( device); } break; #endif } } /* PWM Timer */ static void s3c24xx_pwm_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_pwm_t *pwm = &s3c24xx->pwm; memset( &pwm->regs, 0, sizeof( pwm->regs)); for (int i = 0; i < 5; i++) { pwm->timer[i]->adjust( attotime::never); } } static UINT16 s3c24xx_pwm_calc_observation( device_t *device, int ch) { s3c24xx_t *s3c24xx = get_token( device); double timeleft, x1, x2; UINT32 cnto; timeleft = s3c24xx->pwm.timer[ch]->remaining( ).as_double(); // printf( "timeleft %f freq %d cntb %d cmpb %d\n", timeleft, s3c24xx->pwm.freq[ch], s3c24xx->pwm.cnt[ch], s3c24xx->pwm.cmp[ch]); x1 = 1 / ((double)s3c24xx->pwm.freq[ch] / (s3c24xx->pwm.cnt[ch]- s3c24xx->pwm.cmp[ch] + 1)); x2 = x1 / timeleft; // printf( "x1 %f\n", x1); cnto = s3c24xx->pwm.cmp[ch] + ((s3c24xx->pwm.cnt[ch]- s3c24xx->pwm.cmp[ch]) / x2); // printf( "cnto %d\n", cnto); return cnto; } static READ32_DEVICE_HANDLER( s3c24xx_pwm_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->pwm.regs)[offset]; switch (offset) { case S3C24XX_TCNTO0 : { data = (data & ~0x0000FFFF) | s3c24xx_pwm_calc_observation( device, 0); } break; case S3C24XX_TCNTO1 : { data = (data & ~0x0000FFFF) | s3c24xx_pwm_calc_observation( device, 1); } break; case S3C24XX_TCNTO2 : { data = (data & ~0x0000FFFF) | s3c24xx_pwm_calc_observation( device, 2); } break; case S3C24XX_TCNTO3 : { data = (data & ~0x0000FFFF) | s3c24xx_pwm_calc_observation( device, 3); } break; case S3C24XX_TCNTO4 : { data = (data & ~0x0000FFFF) | s3c24xx_pwm_calc_observation( device, 4); } break; } verboselog( device->machine(), 9, "(PWM) %08X -> %08X\n", S3C24XX_BASE_PWM + (offset << 2), data); return data; } static void s3c24xx_pwm_start( device_t *device, int timer) { s3c24xx_t *s3c24xx = get_token( device); const int mux_table[] = { 2, 4, 8, 16}; const int prescaler_shift[] = { 0, 0, 8, 8, 8}; const int mux_shift[] = { 0, 4, 8, 12, 16}; UINT32 pclk, prescaler, mux, cnt, cmp, auto_reload; double freq, hz; verboselog( device->machine(), 1, "PWM %d start\n", timer); pclk = s3c24xx_get_pclk( device); prescaler = (s3c24xx->pwm.regs.tcfg0 >> prescaler_shift[timer]) & 0xFF; mux = (s3c24xx->pwm.regs.tcfg1 >> mux_shift[timer]) & 0x0F; if (mux < 4) { freq = (double)pclk / (prescaler + 1) / mux_table[mux]; } else { // todo freq = (double)pclk / (prescaler + 1) / 1; } switch (timer) { case 0 : { cnt = BITS( s3c24xx->pwm.regs.tcntb0, 15, 0); cmp = BITS( s3c24xx->pwm.regs.tcmpb0, 15, 0); auto_reload = BIT( s3c24xx->pwm.regs.tcon, 3); } break; case 1 : { cnt = BITS( s3c24xx->pwm.regs.tcntb1, 15, 0); cmp = BITS( s3c24xx->pwm.regs.tcmpb1, 15, 0); auto_reload = BIT( s3c24xx->pwm.regs.tcon, 11); } break; case 2 : { cnt = BITS( s3c24xx->pwm.regs.tcntb2, 15, 0); cmp = BITS( s3c24xx->pwm.regs.tcmpb2, 15, 0); auto_reload = BIT( s3c24xx->pwm.regs.tcon, 15); } break; case 3 : { cnt = BITS( s3c24xx->pwm.regs.tcntb3, 15, 0); cmp = BITS( s3c24xx->pwm.regs.tcmpb3, 15, 0); auto_reload = BIT( s3c24xx->pwm.regs.tcon, 19); } break; case 4 : { cnt = BITS( s3c24xx->pwm.regs.tcntb4, 15, 0); cmp = 0; auto_reload = BIT( s3c24xx->pwm.regs.tcon, 22); } break; default : { cnt = cmp = auto_reload = 0; } break; } // hz = freq / (cnt - cmp + 1); if (cnt < 2) { hz = freq; } else { hz = freq / cnt; } verboselog( device->machine(), 5, "PWM %d - pclk=%d prescaler=%d div=%d freq=%f cnt=%d cmp=%d auto_reload=%d hz=%f\n", timer, pclk, prescaler, mux_table[mux], freq, cnt, cmp, auto_reload, hz); s3c24xx->pwm.cnt[timer] = cnt; s3c24xx->pwm.cmp[timer] = cmp; s3c24xx->pwm.freq[timer] = freq; if (auto_reload) { s3c24xx->pwm.timer[timer]->adjust( attotime::from_hz( hz), timer, attotime::from_hz( hz)); } else { s3c24xx->pwm.timer[timer]->adjust( attotime::from_hz( hz), timer); } } static void s3c24xx_pwm_stop( device_t *device, int timer) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "PWM %d stop\n", timer); s3c24xx->pwm.timer[timer]->adjust( attotime::never); } static void s3c24xx_pwm_recalc( device_t *device, int timer) { s3c24xx_t *s3c24xx = get_token( device); const int tcon_shift[] = { 0, 8, 12, 16, 20}; if (s3c24xx->pwm.regs.tcon & (1 << tcon_shift[timer])) { s3c24xx_pwm_start( device, timer); } else { s3c24xx_pwm_stop( device, timer); } } static WRITE32_DEVICE_HANDLER( s3c24xx_pwm_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->pwm.regs)[offset]; verboselog( device->machine(), 9, "(PWM) %08X <- %08X\n", S3C24XX_BASE_PWM + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->pwm.regs)[offset]); switch (offset) { case S3C24XX_TCON : { if ((data & (1 << 0)) != (old_value & (1 << 0))) { s3c24xx_pwm_recalc( device, 0); } if ((data & (1 << 8)) != (old_value & (1 << 8))) { s3c24xx_pwm_recalc( device, 1); } if ((data & (1 << 12)) != (old_value & (1 << 12))) { s3c24xx_pwm_recalc( device, 2); } if ((data & (1 << 16)) != (old_value & (1 << 16))) { s3c24xx_pwm_recalc( device, 3); } if ((data & (1 << 20)) != (old_value & (1 << 20))) { s3c24xx_pwm_recalc( device, 4); } } break; } } static TIMER_CALLBACK( s3c24xx_pwm_timer_exp ) { device_t *device = (device_t *)ptr; s3c24xx_t *s3c24xx = get_token( device); int ch = param; const int ch_int[] = { S3C24XX_INT_TIMER0, S3C24XX_INT_TIMER1, S3C24XX_INT_TIMER2, S3C24XX_INT_TIMER3, S3C24XX_INT_TIMER4 }; verboselog( machine, 2, "PWM %d timer callback\n", ch); if (BITS( s3c24xx->pwm.regs.tcfg1, 23, 20) == (ch + 1)) { s3c24xx_dma_request_pwm( device); } else { s3c24xx_request_irq( device, ch_int[ch]); } } /* DMA */ static void s3c24xx_dma_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); for (int i = 0; i < S3C24XX_DMA_COUNT; i++) { s3c24xx_dma_t *dma = &s3c24xx->dma[i]; memset( &dma->regs, 0, sizeof( dma->regs)); dma->timer->adjust( attotime::never); } } static void s3c24xx_dma_reload( device_t *device, int ch) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_dma_regs_t *regs = &s3c24xx->dma[ch].regs; regs->dstat = S3C24XX_DSTAT_SET_CURR_TC( regs->dstat, S3C24XX_DCON_GET_TC( regs->dcon)); regs->dcsrc = S3C24XX_DCSRC_SET_CURR_SRC( regs->dcsrc, S3C24XX_DISRC_GET_SADDR( regs->disrc)); regs->dcdst = S3C24XX_DCDST_SET_CURR_DST( regs->dcdst, S3C24XX_DIDST_GET_DADDR( regs->didst)); } static void s3c24xx_dma_trigger( device_t *device, int ch) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_dma_regs_t *regs = &s3c24xx->dma[ch].regs; UINT32 curr_tc, curr_src, curr_dst; address_space *space = device->machine().device( "maincpu")->memory().space( AS_PROGRAM); int dsz, inc_src, inc_dst, servmode, tsz; const UINT32 ch_int[] = { S3C24XX_INT_DMA0, S3C24XX_INT_DMA1, S3C24XX_INT_DMA2, S3C24XX_INT_DMA3}; verboselog( device->machine(), 5, "DMA %d trigger\n", ch); curr_tc = S3C24XX_DSTAT_GET_CURR_TC( regs->dstat); dsz = S3C24XX_DCON_GET_DSZ( regs->dcon); curr_src = S3C24XX_DCSRC_GET_CURR_SRC( regs->dcsrc); curr_dst = S3C24XX_DCDST_GET_CURR_DST( regs->dcdst); servmode = S3C24XX_DCON_GET_SERVMODE( regs->dcon); tsz = S3C24XX_DCON_GET_TSZ( regs->dcon); #if defined(DEVICE_S3C2400) inc_src = BIT( regs->disrc, 29); inc_dst = BIT( regs->didst, 29); #else inc_src = BIT( regs->disrcc, 0); inc_dst = BIT( regs->didstc, 0); #endif verboselog( device->machine(), 5, "DMA %d - curr_src %08X curr_dst %08X curr_tc %d dsz %d\n", ch, curr_src, curr_dst, curr_tc, dsz); while (curr_tc > 0) { curr_tc--; for (int i = 0; i < 1 << (tsz << 1); i++) { switch (dsz) { case 0 : space->write_byte( curr_dst, space->read_byte( curr_src)); break; case 1 : space->write_word( curr_dst, space->read_word( curr_src)); break; case 2 : space->write_dword( curr_dst, space->read_dword( curr_src)); break; } if (inc_src == 0) curr_src += (1 << dsz); if (inc_dst == 0) curr_dst += (1 << dsz); } if (servmode == 0) break; } regs->dcsrc = S3C24XX_DCSRC_SET_CURR_SRC( regs->dcsrc, curr_src); regs->dcdst = S3C24XX_DCDST_SET_CURR_DST( regs->dcdst, curr_dst); regs->dstat = S3C24XX_DSTAT_SET_CURR_TC( regs->dstat, curr_tc); if (curr_tc == 0) { if (S3C24XX_DCON_GET_RELOAD( regs->dcon) == 0) { s3c24xx_dma_reload( device, ch); } else { regs->dmasktrig &= ~(1 << 1); // clear on/off } if (S3C24XX_DCON_GET_INT( regs->dcon) != 0) { s3c24xx_request_irq( device, ch_int[ch]); } } } static void s3c24xx_dma_request_iis( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_dma_regs_t *regs = &s3c24xx->dma[2].regs; verboselog( device->machine(), 5, "s3c24xx_dma_request_iis\n"); if ((S3C24XX_DMASKTRIG_GET_ON_OFF( regs->dmasktrig) != 0) && (S3C24XX_DCON_GET_SWHWSEL( regs->dcon) != 0) && (S3C24XX_DCON_GET_HWSRCSEL( regs->dcon) == 0)) { s3c24xx_dma_trigger( device, 2); } } static void s3c24xx_dma_request_pwm( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "s3c24xx_dma_request_pwm\n"); for (int i = 0; i < 4; i++) { if (i != 1) { s3c24xx_dma_regs_t *regs = &s3c24xx->dma[i].regs; if ((S3C24XX_DMASKTRIG_GET_ON_OFF( regs->dmasktrig) != 0) && (S3C24XX_DCON_GET_SWHWSEL( regs->dcon) != 0) && (S3C24XX_DCON_GET_HWSRCSEL( regs->dcon) == 3)) { s3c24xx_dma_trigger( device, i); } } } } static void s3c24xx_dma_start( device_t *device, int ch) { s3c24xx_t *s3c24xx = get_token( device); UINT32 addr_src, addr_dst, tc; s3c24xx_dma_regs_t *regs = &s3c24xx->dma[ch].regs; UINT32 dsz, tsz, reload; int inc_src, inc_dst, _int, servmode, swhwsel, hwsrcsel; verboselog( device->machine(), 1, "DMA %d start\n", ch); addr_src = S3C24XX_DISRC_GET_SADDR( regs->disrc); addr_dst = S3C24XX_DIDST_GET_DADDR( regs->didst); tc = S3C24XX_DCON_GET_TC( regs->dcon); _int = S3C24XX_DCON_GET_INT( regs->dcon); servmode = S3C24XX_DCON_GET_SERVMODE( regs->dcon); hwsrcsel = S3C24XX_DCON_GET_HWSRCSEL( regs->dcon); swhwsel = S3C24XX_DCON_GET_SWHWSEL( regs->dcon); reload = S3C24XX_DCON_GET_RELOAD( regs->dcon); dsz = S3C24XX_DCON_GET_DSZ( regs->dcon); tsz = S3C24XX_DCON_GET_TSZ( regs->dcon); #if defined(DEVICE_S3C2400) inc_src = BIT( regs->disrc, 29); inc_dst = BIT( regs->didst, 29); #else inc_src = BIT( regs->disrcc, 0); inc_dst = BIT( regs->didstc, 0); #endif verboselog( device->machine(), 5, "DMA %d - addr_src %08X inc_src %d addr_dst %08X inc_dst %d int %d tsz %d servmode %d hwsrcsel %d swhwsel %d reload %d dsz %d tc %d\n", ch, addr_src, inc_src, addr_dst, inc_dst, _int, tsz, servmode, hwsrcsel, swhwsel, reload, dsz, tc); verboselog( device->machine(), 5, "DMA %d - copy %08X bytes from %08X (%s) to %08X (%s)\n", ch, (tc << dsz) << (tsz << 1), addr_src, inc_src ? "fix" : "inc", addr_dst, inc_dst ? "fix" : "inc"); s3c24xx_dma_reload( device, ch); if (swhwsel == 0) { s3c24xx_dma_trigger( device, ch); } } static void s3c24xx_dma_stop( device_t *device, int ch) { verboselog( device->machine(), 1, "DMA %d stop\n", ch); } static void s3c24xx_dma_recalc( device_t *device, int ch) { s3c24xx_t *s3c24xx = get_token( device); if ((s3c24xx->dma[ch].regs.dmasktrig & (1 << 1)) != 0) { s3c24xx_dma_start( device, ch); } else { s3c24xx_dma_stop( device, ch); } } static UINT32 s3c24xx_dma_r( device_t *device, UINT32 ch, UINT32 offset) { s3c24xx_t *s3c24xx = get_token( device); return ((UINT32*)&s3c24xx->dma[ch].regs)[offset]; } static void s3c24xx_dma_w( device_t *device, UINT32 ch, UINT32 offset, UINT32 data, UINT32 mem_mask) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->dma[ch].regs)[offset]; COMBINE_DATA(&((UINT32*)&s3c24xx->dma[ch].regs)[offset]); switch (offset) { case S3C24XX_DCON : { #if 0 // is this code necessary ??? if ((data & (1 << 22)) != 0) // reload { s3c24xx_dma_regs_t *regs = &s3c24xx->dma[ch].regs; regs->dmasktrig &= ~(1 << 1); // clear on/off } #endif } break; case S3C24XX_DMASKTRIG : { if ((old_value & (1 << 1)) != (data & (1 << 1))) { s3c24xx_dma_recalc( device, ch); } } break; } } static READ32_DEVICE_HANDLER( s3c24xx_dma_0_r ) { UINT32 data = s3c24xx_dma_r( device, 0, offset); verboselog( device->machine(), 9, "(DMA 0) %08X -> %08X\n", S3C24XX_BASE_DMA_0 + (offset << 2), data); return data; } static READ32_DEVICE_HANDLER( s3c24xx_dma_1_r ) { UINT32 data = s3c24xx_dma_r( device, 1, offset); verboselog( device->machine(), 9, "(DMA 1) %08X -> %08X\n", S3C24XX_BASE_DMA_1 + (offset << 2), data); return data; } static READ32_DEVICE_HANDLER( s3c24xx_dma_2_r ) { UINT32 data = s3c24xx_dma_r( device, 2, offset); verboselog( device->machine(), 9, "(DMA 2) %08X -> %08X\n", S3C24XX_BASE_DMA_2 + (offset << 2), data); return data; } static READ32_DEVICE_HANDLER( s3c24xx_dma_3_r ) { UINT32 data = s3c24xx_dma_r( device, 3, offset); verboselog( device->machine(), 9, "(DMA 3) %08X -> %08X\n", S3C24XX_BASE_DMA_3 + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_dma_0_w ) { verboselog( device->machine(), 9, "(DMA 0) %08X <- %08X\n", S3C24XX_BASE_DMA_0 + (offset << 2), data); s3c24xx_dma_w( device, 0, offset, data, mem_mask); } static WRITE32_DEVICE_HANDLER( s3c24xx_dma_1_w ) { verboselog( device->machine(), 9, "(DMA 1) %08X <- %08X\n", S3C24XX_BASE_DMA_1 + (offset << 2), data); s3c24xx_dma_w( device, 1, offset, data, mem_mask); } static WRITE32_DEVICE_HANDLER( s3c24xx_dma_2_w ) { verboselog( device->machine(), 9, "(DMA 2) %08X <- %08X\n", S3C24XX_BASE_DMA_2 + (offset << 2), data); s3c24xx_dma_w( device, 2, offset, data, mem_mask); } static WRITE32_DEVICE_HANDLER( s3c24xx_dma_3_w ) { verboselog( device->machine(), 9, "(DMA 3) %08X <- %08X\n", S3C24XX_BASE_DMA_3 + (offset << 2), data); s3c24xx_dma_w( device, 3, offset, data, mem_mask); } static TIMER_CALLBACK( s3c24xx_dma_timer_exp ) { int ch = param; verboselog( machine, 2, "DMA %d timer callback\n", ch); } /* I/O Port */ static void s3c24xx_gpio_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_gpio_t *gpio = &s3c24xx->gpio; memset( &gpio->regs, 0, sizeof( gpio->regs)); #if defined(DEVICE_S3C2400) gpio->regs.gpacon = 0x0003FFFF; gpio->regs.gpbcon = 0xAAAAAAAA; gpio->regs.gpdup = 0x0620; gpio->regs.gpeup = 0x0003; #elif defined(DEVICE_S3C2410) gpio->regs.gpacon = 0x007FFFFF; gpio->regs.gpgup = 0xF800; gpio->regs.misccr = 0x00010330; gpio->regs.eintmask = 0x00FFFFF0; gpio->regs.gstatus1 = 0x32410002; #elif defined(DEVICE_S3C2440) gpio->regs.gpacon = 0x00FFFFFF; gpio->regs.gpgup = 0xFC00; gpio->regs.misccr = 0x00010020; gpio->regs.eintmask = 0x000FFFFF; gpio->regs.gstatus1 = 0x32440001; #endif gpio->regs.gpdup = 0xF000; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) gpio->regs.gstatus2 = 1 << 0; // Boot is caused by power on reset #endif } INLINE UINT32 iface_gpio_port_r( device_t *device, int port, UINT32 mask) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->gpio.port_r) { return (s3c24xx->iface->gpio.port_r)( device, port, mask); } else { return 0; } } INLINE void iface_gpio_port_w( device_t *device, int port, UINT32 mask, UINT32 data) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->gpio.port_w) { (s3c24xx->iface->gpio.port_w)( device, port, mask, data); } } static UINT16 s3c24xx_gpio_get_mask( UINT32 con, int val) { UINT16 mask = 0; for (int i = 0; i < 16; i++) { if (((con >> (i << 1)) & 3) == val) { mask = mask | (1 << i); } } return mask; } static READ32_DEVICE_HANDLER( s3c24xx_gpio_r ) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_gpio_t *gpio = &s3c24xx->gpio; UINT32 data = ((UINT32*)&s3c24xx->gpio.regs)[offset]; switch (offset) { case S3C24XX_GPADAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_A, 0) & S3C24XX_GPADAT_MASK; } break; case S3C24XX_GPBDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_B, s3c24xx_gpio_get_mask( gpio->regs.gpbcon, 0) & S3C24XX_GPBDAT_MASK) & S3C24XX_GPBDAT_MASK; } break; case S3C24XX_GPCDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_C, s3c24xx_gpio_get_mask( gpio->regs.gpccon, 0) & S3C24XX_GPCDAT_MASK) & S3C24XX_GPCDAT_MASK; } break; case S3C24XX_GPDDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_D, s3c24xx_gpio_get_mask( gpio->regs.gpdcon, 0) & S3C24XX_GPDDAT_MASK) & S3C24XX_GPDDAT_MASK; } break; case S3C24XX_GPEDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_E, s3c24xx_gpio_get_mask( gpio->regs.gpecon, 0) & S3C24XX_GPEDAT_MASK) & S3C24XX_GPEDAT_MASK; } break; case S3C24XX_GPFDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_F, s3c24xx_gpio_get_mask( gpio->regs.gpfcon, 0) & S3C24XX_GPFDAT_MASK) & S3C24XX_GPFDAT_MASK; } break; case S3C24XX_GPGDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_G, s3c24xx_gpio_get_mask( gpio->regs.gpgcon, 0) & S3C24XX_GPGDAT_MASK) & S3C24XX_GPGDAT_MASK; } break; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) case S3C24XX_GPHDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_H, s3c24xx_gpio_get_mask( gpio->regs.gphcon, 0) & S3C24XX_GPHDAT_MASK) & S3C24XX_GPHDAT_MASK; } break; #endif #if defined(DEVICE_S3C2440) case S3C24XX_GPJDAT : { data = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_J, s3c24xx_gpio_get_mask( gpio->regs.gpjcon, 0) & S3C24XX_GPJDAT_MASK) & S3C24XX_GPJDAT_MASK; } break; #endif } verboselog( device->machine(), 9, "(GPIO) %08X -> %08X\n", S3C24XX_BASE_GPIO + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_gpio_w ) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_gpio_t *gpio = &s3c24xx->gpio; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) UINT32 old_value = ((UINT32*)&s3c24xx->gpio.regs)[offset]; #endif verboselog( device->machine(), 9, "(GPIO) %08X <- %08X\n", S3C24XX_BASE_GPIO + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->gpio.regs)[offset]); switch (offset) { case S3C24XX_GPADAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_A, gpio->regs.gpacon ^ 0xFFFFFFFF, data & S3C24XX_GPADAT_MASK); } break; case S3C24XX_GPBDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_B, s3c24xx_gpio_get_mask( gpio->regs.gpbcon, 1) & S3C24XX_GPBDAT_MASK, data & S3C24XX_GPBDAT_MASK); } break; case S3C24XX_GPCDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_C, s3c24xx_gpio_get_mask( gpio->regs.gpccon, 1) & S3C24XX_GPCDAT_MASK, data & S3C24XX_GPCDAT_MASK); } break; case S3C24XX_GPDDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_D, s3c24xx_gpio_get_mask( gpio->regs.gpdcon, 1) & S3C24XX_GPDDAT_MASK, data & S3C24XX_GPDDAT_MASK); } break; case S3C24XX_GPEDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_E, s3c24xx_gpio_get_mask( gpio->regs.gpecon, 1) & S3C24XX_GPEDAT_MASK, data & S3C24XX_GPEDAT_MASK); } break; case S3C24XX_GPFDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_F, s3c24xx_gpio_get_mask( gpio->regs.gpfcon, 1) & S3C24XX_GPFDAT_MASK, data & S3C24XX_GPFDAT_MASK); } break; case S3C24XX_GPGDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_G, s3c24xx_gpio_get_mask( gpio->regs.gpgcon, 1) & S3C24XX_GPGDAT_MASK, data & S3C24XX_GPGDAT_MASK); } break; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) case S3C24XX_GPHDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_H, s3c24xx_gpio_get_mask( gpio->regs.gphcon, 1) & S3C24XX_GPHDAT_MASK, data & S3C24XX_GPHDAT_MASK); } break; case S3C24XX_EINTPEND : { s3c24xx->gpio.regs.eintpend = (old_value & ~data); s3c24xx_check_pending_eint( device); } break; case S3C24XX_EINTMASK : { s3c24xx_check_pending_eint( device); } break; case S3C24XX_GSTATUS2 : { s3c24xx->gpio.regs.gstatus2 = (old_value & ~data) & 7; // "The setting is cleared by writing '1' to this bit" } break; #endif #if defined(DEVICE_S3C2440) case S3C24XX_GPJDAT : { iface_gpio_port_w( device, S3C24XX_GPIO_PORT_J, s3c24xx_gpio_get_mask( gpio->regs.gpjcon, 1) & S3C24XX_GPJDAT_MASK, data & S3C24XX_GPJDAT_MASK); } break; #endif } } /* Memory Controller */ static void s3c24xx_memcon_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_memcon_t *memcon = &s3c24xx->memcon; memset( &memcon->regs, 0, sizeof( memcon->regs)); memcon->regs.data[0x04/4] = 0x00000700; memcon->regs.data[0x08/4] = 0x00000700; memcon->regs.data[0x0C/4] = 0x00000700; memcon->regs.data[0x10/4] = 0x00000700; memcon->regs.data[0x14/4] = 0x00000700; memcon->regs.data[0x18/4] = 0x00000700; memcon->regs.data[0x1C/4] = 0x00018008; memcon->regs.data[0x20/4] = 0x00018008; memcon->regs.data[0x24/4] = 0x00AC0000; } static READ32_DEVICE_HANDLER( s3c24xx_memcon_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->memcon.regs.data[offset]; verboselog( device->machine(), 9, "(MEMCON) %08X -> %08X\n", S3C24XX_BASE_MEMCON + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_memcon_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(MEMCON) %08X <- %08X\n", S3C24XX_BASE_MEMCON + (offset << 2), data); COMBINE_DATA(&s3c24xx->memcon.regs.data[offset]); } /* USB Host Controller */ static void s3c24xx_usb_host_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_usbhost_t *usbhost = &s3c24xx->usbhost; memset( &usbhost->regs, 0, sizeof( usbhost->regs)); } static READ32_DEVICE_HANDLER( s3c24xx_usb_host_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->usbhost.regs.data[offset]; switch (offset) { // HcCommandStatus case 0x08 / 4 : { data = data & ~(1 << 0); // [bit 0] HostControllerReset } break; // HcPeriodStart case 0x40 / 4: { // "After a hardware reset, this field is cleared. This is then set by" // "HCD during the HC initialization. The value is calculated" // "roughly as 10% off from HcFmInterval.. A typical value will be 3E67h." data = (data & ~0x00003FFF) | 0x3E67; } break; // HcRhDescriptorA case 0x48 / 4: { data = (data & ~0xFF) | 2; // number of ports } break; // HcRhStatus case 0x50 / 4: { data = data & ~(1 << 16); // "The Root Hub does not support the local power status feature; thus, this bit is always read as ?0?." } break; } verboselog( device->machine(), 9, "(USB H) %08X -> %08X\n", S3C24XX_BASE_USBHOST + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_usb_host_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(USB H) %08X <- %08X\n", S3C24XX_BASE_USBHOST + (offset << 2), data); COMBINE_DATA(&s3c24xx->usbhost.regs.data[offset]); } /* UART */ static void s3c24xx_uart_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); for (int i = 0; i < S3C24XX_UART_COUNT; i++) { s3c24xx_uart_t *uart = &s3c24xx->uart[i]; memset( &uart->regs, 0, sizeof( uart->regs)); uart->regs.utrstat = 6; } } static UINT32 s3c24xx_uart_r( device_t *device, UINT32 ch, UINT32 offset) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->uart[ch].regs)[offset]; switch (offset) { case S3C24XX_UTRSTAT : { data = (data & ~0x00000006) | 0x00000004 | 0x00000002; // [bit 2] Transmitter empty / [bit 1] Transmit buffer empty } break; case S3C24XX_URXH : { UINT8 rxdata = data & 0xFF; verboselog( device->machine(), 5, "UART %d read %02X (%c)\n", ch, rxdata, ((rxdata >= 32) && (rxdata < 128)) ? (char)rxdata : '?'); s3c24xx->uart[ch].regs.utrstat &= ~1; // [bit 0] Receive buffer data ready } break; } return data; } static void s3c24xx_uart_w( device_t *device, UINT32 ch, UINT32 offset, UINT32 data, UINT32 mem_mask) { s3c24xx_t *s3c24xx = get_token( device); COMBINE_DATA(&((UINT32*)&s3c24xx->uart[ch].regs)[offset]); switch (offset) { case S3C24XX_UFCON : { s3c24xx->uart[ch].regs.ufcon &= ~((1 << 2) | (1 << 1)); // bits 1 and 2 are auto-cleared after resetting FIFO } break; case S3C24XX_UTXH : { UINT8 txdata = data & 0xFF; verboselog( device->machine(), 5, "UART %d write %02X (%c)\n", ch, txdata, ((txdata >= 32) && (txdata < 128)) ? (char)txdata : '?'); #ifdef UART_PRINTF printf( "%c", ((txdata >= 32) && (txdata < 128)) ? (char)txdata : '?'); #endif } break; } } static READ32_DEVICE_HANDLER( s3c24xx_uart_0_r ) { UINT32 data = s3c24xx_uart_r( device, 0, offset); // verboselog( device->machine(), 9, "(UART 0) %08X -> %08X\n", S3C24XX_BASE_UART_0 + (offset << 2), data); return data; } static READ32_DEVICE_HANDLER( s3c24xx_uart_1_r ) { UINT32 data = s3c24xx_uart_r( device, 1, offset); // verboselog( device->machine(), 9, "(UART 1) %08X -> %08X\n", S3C24XX_BASE_UART_1 + (offset << 2), data); return data; } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static READ32_DEVICE_HANDLER( s3c24xx_uart_2_r ) { UINT32 data = s3c24xx_uart_r( device, 2, offset); // verboselog( device->machine(), 9, "(UART 2) %08X -> %08X\n", S3C24XX_BASE_UART_2 + (offset << 2), data); return data; } #endif static WRITE32_DEVICE_HANDLER( s3c24xx_uart_0_w ) { // verboselog( device->machine(), 9, "(UART 0) %08X <- %08X\n", S3C24XX_BASE_UART_0 + (offset << 2), data); s3c24xx_uart_w( device, 0, offset, data, mem_mask); } static WRITE32_DEVICE_HANDLER( s3c24xx_uart_1_w ) { // verboselog( device->machine(), 9, "(UART 1) %08X <- %08X\n", S3C24XX_BASE_UART_1 + (offset << 2), data); s3c24xx_uart_w( device, 1, offset, data, mem_mask); } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static WRITE32_DEVICE_HANDLER( s3c24xx_uart_2_w ) { // verboselog( device->machine(), 9, "(UART 2) %08X <- %08X\n", S3C24XX_BASE_UART_2 + (offset << 2), data); s3c24xx_uart_w( device, 2, offset, data, mem_mask); } #endif static void s3c24xx_uart_fifo_w( device_t *device, int uart, UINT8 data) { // printf( "s3c24xx_uart_fifo_w (%c)\n", data); s3c24xx_t *s3c24xx = get_token( device); s3c24xx->uart[uart].regs.urxh = data; s3c24xx->uart[uart].regs.utrstat |= 1; // [bit 0] Receive buffer data ready } /* USB Device */ static void s3c24xx_usb_device_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_usbdev_t *usbdev = &s3c24xx->usbdev; memset( &usbdev->regs, 0, sizeof( usbdev->regs)); #if defined(DEVICE_S3C2400) usbdev->regs.data[0x0C/4] = 0x033F; usbdev->regs.data[0x14/4] = 0x000A; usbdev->regs.data[0x24/4] = 0x0001; usbdev->regs.data[0x44/4] = 0x0001; usbdev->regs.data[0x54/4] = 0x0001; usbdev->regs.data[0x64/4] = 0x0001; usbdev->regs.data[0x74/4] = 0x0001; usbdev->regs.data[0xB8/4] = 0x00FF; #elif defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) usbdev->regs.data[0x1C/4] = 0xFF; usbdev->regs.data[0x2C/4] = 0x04; usbdev->regs.data[0x40/4] = 0x01; usbdev->regs.data[0x48/4] = 0x20; #endif } static READ32_DEVICE_HANDLER( s3c24xx_usb_device_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->usbdev.regs.data[offset]; verboselog( device->machine(), 9, "(USB D) %08X -> %08X\n", S3C24XX_BASE_USBDEV + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_usb_device_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(USB D) %08X <- %08X\n", S3C24XX_BASE_USBDEV + (offset << 2), data); COMBINE_DATA(&s3c24xx->usbdev.regs.data[offset]); } /* Watchdog Timer */ static void s3c24xx_wdt_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_wdt_t *wdt = &s3c24xx->wdt; memset( &wdt->regs, 0, sizeof( wdt->regs)); wdt->regs.wtcon = 0x8021; wdt->regs.wtdat = 0x8000; wdt->regs.wtcnt = 0x8000; wdt->timer->adjust( attotime::never); } #if defined(DEVICE_S3C2410) static UINT16 s3c24xx_wdt_calc_current_count( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); double timeleft, x1, x2; UINT32 cnt; timeleft = s3c24xx->wdt.timer->remaining( ).as_double(); // printf( "timeleft %f freq %d cnt %d\n", timeleft, s3c24xx->wdt.freq, s3c24xx->wdt.cnt); x1 = 1 / ((double)s3c24xx->wdt.freq / s3c24xx->wdt.cnt); x2 = x1 / timeleft; // printf( "x1 %f\n", x1); cnt = s3c24xx->wdt.cnt / x2; // printf( "cnt %d\n", cnt); return cnt; } #else static UINT16 s3c24xx_wdt_calc_current_count( device_t *device) { return 0; } #endif static READ32_DEVICE_HANDLER( s3c24xx_wdt_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->wdt.regs)[offset]; switch (offset) { case S3C24XX_WTCNT : { // is wdt active? if ((s3c24xx->wdt.regs.wtcon & (1 << 5)) != 0) { data = s3c24xx_wdt_calc_current_count( device); } } break; } verboselog( device->machine(), 9, "(WDT) %08X -> %08X\n", S3C24XX_BASE_WDT + (offset << 2), data); return data; } static void s3c24xx_wdt_start( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 pclk, prescaler, clock; double freq, hz; verboselog( device->machine(), 1, "WDT start\n"); pclk = s3c24xx_get_pclk( device); prescaler = BITS( s3c24xx->wdt.regs.wtcon, 15, 8); clock = 16 << BITS( s3c24xx->wdt.regs.wtcon, 4, 3); freq = (double)pclk / (prescaler + 1) / clock; hz = freq / s3c24xx->wdt.regs.wtcnt; verboselog( device->machine(), 5, "WDT pclk %d prescaler %d clock %d freq %f hz %f\n", pclk, prescaler, clock, freq, hz); s3c24xx->wdt.timer->adjust( attotime::from_hz( hz), 0, attotime::from_hz( hz)); #if defined(DEVICE_S3C2410) s3c24xx->wdt.freq = freq; s3c24xx->wdt.cnt = s3c24xx->wdt.regs.wtcnt; #endif } static void s3c24xx_wdt_stop( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "WDT stop\n"); s3c24xx->wdt.regs.wtcnt = s3c24xx_wdt_calc_current_count( device); s3c24xx->wdt.timer->adjust( attotime::never); } static void s3c24xx_wdt_recalc( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if ((s3c24xx->wdt.regs.wtcon & (1 << 5)) != 0) { s3c24xx_wdt_start( device); } else { s3c24xx_wdt_stop( device); } } static WRITE32_DEVICE_HANDLER( s3c24xx_wdt_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->wdt.regs)[offset]; verboselog( device->machine(), 9, "(WDT) %08X <- %08X\n", S3C24XX_BASE_WDT + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->wdt.regs)[offset]); switch (offset) { case S3C24XX_WTCON : { if ((data & (1 << 5)) != (old_value & (1 << 5))) { s3c24xx_wdt_recalc( device); } } break; } } static TIMER_CALLBACK( s3c24xx_wdt_timer_exp ) { device_t *device = (device_t *)ptr; s3c24xx_t *s3c24xx = get_token( device); verboselog( machine, 2, "WDT timer callback\n"); if ((s3c24xx->wdt.regs.wtcon & (1 << 2)) != 0) { #if defined(DEVICE_S3C2400) || defined(DEVICE_S3C2410) s3c24xx_request_irq( device, S3C24XX_INT_WDT); #else s3c24xx_request_subirq( device, S3C24XX_SUBINT_WDT); #endif } if ((s3c24xx->wdt.regs.wtcon & (1 << 0)) != 0) { s3c24xx_reset( device); #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) s3c24xx->gpio.regs.gstatus2 = 1 << 2; // Watchdog reset #endif } } /* IIC */ static void s3c24xx_iic_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_iic_t *iic = &s3c24xx->iic; memset( &iic->regs, 0, sizeof( iic->regs)); iic->count = 0; iic->timer->adjust( attotime::never); } INLINE void iface_i2c_scl_w( device_t *device, int state) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->i2c.scl_w) { (s3c24xx->iface->i2c.scl_w)( device, state); } } INLINE void iface_i2c_sda_w( device_t *device, int state) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->i2c.sda_w) { (s3c24xx->iface->i2c.sda_w)( device, state); } } INLINE int iface_i2c_sda_r( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->i2c.sda_r) { return (s3c24xx->iface->i2c.sda_r)( device); } else { return 0; } } static void i2c_send_start( device_t *device) { verboselog( device->machine(), 5, "i2c_send_start\n"); iface_i2c_sda_w( device, 1); iface_i2c_scl_w( device, 1); iface_i2c_sda_w( device, 0); iface_i2c_scl_w( device, 0); } static void i2c_send_stop( device_t *device) { verboselog( device->machine(), 5, "i2c_send_stop\n"); iface_i2c_sda_w( device, 0); iface_i2c_scl_w( device, 1); iface_i2c_sda_w( device, 1); iface_i2c_scl_w( device, 0); } static UINT8 i2c_receive_byte( device_t *device, int ack) { UINT8 data = 0; verboselog( device->machine(), 5, "i2c_receive_byte ...\n"); iface_i2c_sda_w( device, 1); for (int i = 0; i < 8; i++) { iface_i2c_scl_w( device, 1); data = (data << 1) + (iface_i2c_sda_r( device) ? 1 : 0); iface_i2c_scl_w( device, 0); } verboselog( device->machine(), 5, "recv data %02X\n", data); verboselog( device->machine(), 5, "send ack %d\n", ack); iface_i2c_sda_w( device, ack ? 0 : 1); iface_i2c_scl_w( device, 1); iface_i2c_scl_w( device, 0); return data; } static int i2c_send_byte( device_t *device, UINT8 data) { int ack; verboselog( device->machine(), 5, "i2c_send_byte ...\n"); verboselog( device->machine(), 5, "send data %02X\n", data); for (int i = 0; i < 8; i++) { iface_i2c_sda_w( device, (data & 0x80) ? 1 : 0); data = data << 1; iface_i2c_scl_w( device, 1); iface_i2c_scl_w( device, 0); } iface_i2c_sda_w( device, 1); // ack bit iface_i2c_scl_w( device, 1); ack = iface_i2c_sda_r( device); verboselog( device->machine(), 5, "recv ack %d\n", ack); iface_i2c_scl_w( device, 0); return ack; } static void iic_start( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); int mode_selection; verboselog( device->machine(), 1, "IIC start\n"); i2c_send_start( device); mode_selection = BITS( s3c24xx->iic.regs.iicstat, 7, 6); switch (mode_selection) { case 2 : i2c_send_byte( device, s3c24xx->iic.regs.iicds | 0x01); break; case 3 : i2c_send_byte( device, s3c24xx->iic.regs.iicds & 0xFE); break; } s3c24xx->iic.timer->adjust( attotime::from_usec( 1)); } static void iic_stop( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "IIC stop\n"); i2c_send_stop( device); s3c24xx->iic.timer->adjust( attotime::never); } static void iic_resume( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); int mode_selection; verboselog( device->machine(), 1, "IIC resume\n"); mode_selection = BITS( s3c24xx->iic.regs.iicstat, 7, 6); switch (mode_selection) { case 2 : s3c24xx->iic.regs.iicds = i2c_receive_byte( device, BIT( s3c24xx->iic.regs.iiccon, 7)); break; case 3 : i2c_send_byte( device, s3c24xx->iic.regs.iicds & 0xFF); break; } s3c24xx->iic.timer->adjust( attotime::from_usec( 1)); } static READ32_DEVICE_HANDLER( s3c24xx_iic_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->iic.regs)[offset]; switch (offset) { case S3C24XX_IICSTAT : { data = data & ~0x0000000F; } break; } verboselog( device->machine(), 9, "(IIC) %08X -> %08X\n", S3C24XX_BASE_IIC + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_iic_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->iic.regs)[offset]; verboselog( device->machine(), 9, "(IIC) %08X <- %08X\n", S3C24XX_BASE_IIC + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->iic.regs)[offset]); switch (offset) { case S3C24XX_IICCON : { int interrupt_pending_flag; #if 0 const int div_table[] = { 16, 512}; int enable_interrupt, transmit_clock_value, tx_clock_source_selection double clock; transmit_clock_value = (data >> 0) & 0xF; tx_clock_source_selection = (data >> 6) & 1; enable_interrupt = (data >> 5) & 1; clock = (double)s3c24xx_get_pclk( device) / div_table[tx_clock_source_selection] / (transmit_clock_value + 1); #endif interrupt_pending_flag = BIT( old_value, 4); if (interrupt_pending_flag != 0) { interrupt_pending_flag = BIT( data, 4); if (interrupt_pending_flag == 0) { int start_stop_condition; start_stop_condition = BIT( s3c24xx->iic.regs.iicstat, 5); if (start_stop_condition != 0) { if (s3c24xx->iic.count == 0) { iic_start( device); } else { iic_resume( device); } } else { iic_stop( device); } } } } break; case S3C24XX_IICSTAT : { int interrupt_pending_flag; s3c24xx->iic.count = 0; interrupt_pending_flag = BIT( s3c24xx->iic.regs.iiccon, 4); if (interrupt_pending_flag == 0) { int start_stop_condition; start_stop_condition = BIT( data, 5); if (start_stop_condition != 0) { if (s3c24xx->iic.count == 0) { iic_start( device); } else { iic_resume( device); } } else { iic_stop( device); } } } break; } } static TIMER_CALLBACK( s3c24xx_iic_timer_exp ) { device_t *device = (device_t *)ptr; s3c24xx_t *s3c24xx = get_token( device); int enable_interrupt; verboselog( machine, 2, "IIC timer callback\n"); s3c24xx->iic.count++; enable_interrupt = BIT( s3c24xx->iic.regs.iiccon, 5); if (enable_interrupt) { s3c24xx->iic.regs.iiccon |= (1 << 4); // [bit 4] interrupt is pending s3c24xx_request_irq( device, S3C24XX_INT_IIC); } } /* IIS */ static void s3c24xx_iis_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_iis_t *iis = &s3c24xx->iis; memset( &iis->regs, 0, sizeof( iis->regs)); iis->fifo_index = 0; iis->regs.iiscon = 0x0100; iis->timer->adjust( attotime::never); } INLINE void iface_i2s_data_w( device_t *device, int ch, UINT16 data) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->i2s.data_w) { (s3c24xx->iface->i2s.data_w)( device, ch, data, 0); } } static void s3c24xx_iis_start( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); const UINT32 codeclk_table[] = { 256, 384}; double freq; int pclk, prescaler_enable, prescaler_control_a, prescaler_control_b, codeclk; verboselog( device->machine(), 1, "IIS start\n"); prescaler_enable = BIT( s3c24xx->iis.regs.iiscon, 1); prescaler_control_a = BITS( s3c24xx->iis.regs.iispsr, 9, 5); prescaler_control_b = BITS( s3c24xx->iis.regs.iispsr, 4, 0); codeclk = BIT( s3c24xx->iis.regs.iismod, 2); pclk = s3c24xx_get_pclk( device); freq = ((double)pclk / (prescaler_control_a + 1) / codeclk_table[codeclk]) * 2; // why do I have to multiply by two? verboselog( device->machine(), 5, "IIS - pclk %d psc_enable %d psc_a %d psc_b %d codeclk %d freq %f\n", pclk, prescaler_enable, prescaler_control_a, prescaler_control_b, codeclk_table[codeclk], freq); s3c24xx->iis.timer->adjust( attotime::from_hz( freq), 0, attotime::from_hz( freq)); } static void s3c24xx_iis_stop( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "IIS stop\n"); s3c24xx->iis.timer->adjust( attotime::never); } static void s3c24xx_iis_recalc( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if ((s3c24xx->iis.regs.iiscon & (1 << 0)) != 0) { s3c24xx_iis_start( device); } else { s3c24xx_iis_stop( device); } } static READ32_DEVICE_HANDLER( s3c24xx_iis_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->iis.regs)[offset]; #if 0 switch (offset) { case S3C24XX_IISCON : { data = data & ~1; // hack for mp3 player } break; } #endif verboselog( device->machine(), 9, "(IIS) %08X -> %08X\n", S3C24XX_BASE_IIS + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_iis_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->iis.regs)[offset]; verboselog( device->machine(), 9, "(IIS) %08X <- %08X\n", S3C24XX_BASE_IIS + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->iis.regs)[offset]); switch (offset) { case S3C24XX_IISCON : { if ((old_value & (1 << 0)) != (data & (1 << 0))) { s3c24xx_iis_recalc( device); } } break; case S3C24XX_IISFIFO : { if (ACCESSING_BITS_16_31) { s3c24xx->iis.fifo[s3c24xx->iis.fifo_index++] = BITS( data, 31, 16); } if (ACCESSING_BITS_0_15) { s3c24xx->iis.fifo[s3c24xx->iis.fifo_index++] = BITS( data, 15, 0); } if (s3c24xx->iis.fifo_index == 2) { s3c24xx->iis.fifo_index = 0; iface_i2s_data_w( device, 0, s3c24xx->iis.fifo[0]); iface_i2s_data_w( device, 1, s3c24xx->iis.fifo[1]); } } break; } } static TIMER_CALLBACK( s3c24xx_iis_timer_exp ) { device_t *device = (device_t *)ptr; verboselog( machine, 2, "IIS timer callback\n"); s3c24xx_dma_request_iis( device); } /* RTC */ static void s3c24xx_rtc_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_rtc_t *rtc = &s3c24xx->rtc; memset( &rtc->regs, 0, sizeof( rtc->regs)); rtc->regs.almday = 1; rtc->regs.almmon = 1; rtc->timer_update->adjust( attotime::never); rtc->timer_update->adjust( attotime::from_msec( 1000), 0, attotime::from_msec( 1000)); } static READ32_DEVICE_HANDLER( s3c24xx_rtc_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->rtc.regs)[offset]; verboselog( device->machine(), 9, "(RTC) %08X -> %08X\n", S3C24XX_BASE_RTC + (offset << 2), data); return data; } static void s3c24xx_rtc_recalc( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->rtc.regs.ticnt & (1 << 7)) { UINT32 ttc; double freq; ttc = BITS( s3c24xx->rtc.regs.ticnt, 6, 0); freq = 128 / (ttc + 1); // printf( "ttc %d freq %f\n", ttc, freq); s3c24xx->rtc.timer_tick_count->adjust( attotime::from_hz( freq), 0, attotime::from_hz( freq)); } else { s3c24xx->rtc.timer_tick_count->adjust( attotime::never); } } static WRITE32_DEVICE_HANDLER( s3c24xx_rtc_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(RTC) %08X <- %08X\n", S3C24XX_BASE_RTC + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->rtc.regs)[offset]); switch (offset) { case S3C24XX_TICNT : { s3c24xx_rtc_recalc( device); } break; } } static TIMER_CALLBACK( s3c24xx_rtc_timer_tick_count_exp ) { device_t *device = (device_t *)ptr; verboselog( machine, 2, "RTC timer callback (tick count)\n"); s3c24xx_request_irq( device, S3C24XX_INT_TICK); } static void s3c24xx_rtc_update( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT32 bcdday_max; // increase second s3c24xx->rtc.regs.bcdsec = bcd_adjust( s3c24xx->rtc.regs.bcdsec + 1); if (s3c24xx->rtc.regs.bcdsec >= 0x60) { s3c24xx->rtc.regs.bcdsec = 0; // increase minute s3c24xx->rtc.regs.bcdmin = bcd_adjust( s3c24xx->rtc.regs.bcdmin + 1); if (s3c24xx->rtc.regs.bcdmin >= 0x60) { s3c24xx->rtc.regs.bcdmin = 0; // increase hour s3c24xx->rtc.regs.bcdhour = bcd_adjust( s3c24xx->rtc.regs.bcdhour + 1); if (s3c24xx->rtc.regs.bcdhour >= 0x24) { s3c24xx->rtc.regs.bcdhour = 0; // increase day-of-week s3c24xx->rtc.regs.bcddow = (s3c24xx->rtc.regs.bcddow % 7) + 1; // increase day s3c24xx->rtc.regs.bcdday = bcd_adjust( s3c24xx->rtc.regs.bcdday + 1); bcdday_max = dec_2_bcd( gregorian_days_in_month( bcd_2_dec( s3c24xx->rtc.regs.bcdmon), bcd_2_dec( s3c24xx->rtc.regs.bcdyear) + 2000)); if (s3c24xx->rtc.regs.bcdday > bcdday_max) { s3c24xx->rtc.regs.bcdday = 1; // increase month s3c24xx->rtc.regs.bcdmon = bcd_adjust( s3c24xx->rtc.regs.bcdmon + 1); if (s3c24xx->rtc.regs.bcdmon >= 0x12) { s3c24xx->rtc.regs.bcdmon = 1; // increase year s3c24xx->rtc.regs.bcdyear = bcd_adjust( s3c24xx->rtc.regs.bcdyear + 1); if (s3c24xx->rtc.regs.bcdyear >= 0x100) { s3c24xx->rtc.regs.bcdyear = 0; } } } } } } verboselog( device->machine(), 5, "RTC - %04d/%02d/%02d %02d:%02d:%02d\n", bcd_2_dec( s3c24xx->rtc.regs.bcdyear) + 2000, bcd_2_dec( s3c24xx->rtc.regs.bcdmon), bcd_2_dec( s3c24xx->rtc.regs.bcdday), bcd_2_dec( s3c24xx->rtc.regs.bcdhour), bcd_2_dec( s3c24xx->rtc.regs.bcdmin), bcd_2_dec( s3c24xx->rtc.regs.bcdsec)); } static void s3c24xx_rtc_check_alarm( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->rtc.regs.rtcalm & 0x40) { int isalarm = 1; isalarm = isalarm && (((s3c24xx->rtc.regs.rtcalm & 0x20) == 0) || (s3c24xx->rtc.regs.almyear == s3c24xx->rtc.regs.bcdyear)); isalarm = isalarm && (((s3c24xx->rtc.regs.rtcalm & 0x10) == 0) || (s3c24xx->rtc.regs.almmon == s3c24xx->rtc.regs.bcdmon)); isalarm = isalarm && (((s3c24xx->rtc.regs.rtcalm & 0x08) == 0) || (s3c24xx->rtc.regs.almday == s3c24xx->rtc.regs.bcdday)); isalarm = isalarm && (((s3c24xx->rtc.regs.rtcalm & 0x04) == 0) || (s3c24xx->rtc.regs.almhour == s3c24xx->rtc.regs.bcdhour)); isalarm = isalarm && (((s3c24xx->rtc.regs.rtcalm & 0x02) == 0) || (s3c24xx->rtc.regs.almmin == s3c24xx->rtc.regs.bcdmin)); isalarm = isalarm && (((s3c24xx->rtc.regs.rtcalm & 0x01) == 0) || (s3c24xx->rtc.regs.almsec == s3c24xx->rtc.regs.bcdsec)); if (isalarm != 0) { s3c24xx_request_irq( device, S3C24XX_INT_RTC); } } } static TIMER_CALLBACK( s3c24xx_rtc_timer_update_exp ) { device_t *device = (device_t *)ptr; verboselog( machine, 2, "RTC timer callback (update)\n"); s3c24xx_rtc_update( device); s3c24xx_rtc_check_alarm( device); } /* A/D Converter */ static void s3c24xx_adc_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_adc_t *adc = &s3c24xx->adc; memset( &adc->regs, 0, sizeof( adc->regs)); adc->regs.adccon = 0x3FC4; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) adc->regs.adctsc = 0x58; adc->regs.adcdly = 0xFF; #endif } static UINT32 iface_adc_data_r( device_t *device, int ch) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->adc.data_r) { int offs = ch; #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) if (BIT( s3c24xx->adc.regs.adctsc, 2) != 0) { offs += 2; } #endif return (s3c24xx->iface->adc.data_r)( device, offs, 0); } else { return 0; } } static READ32_DEVICE_HANDLER( s3c24xx_adc_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->adc.regs)[offset]; switch (offset) { #if defined(DEVICE_S3C2400) case S3C24XX_ADCDAT : { data = (data & ~0x3FF) | (iface_adc_data_r( device, 0) & 0x3FF); } break; #else case S3C24XX_ADCDAT0 : { data = (data & ~0x3FF) | (iface_adc_data_r( device, 0) & 0x3FF); } break; case S3C24XX_ADCDAT1 : { data = (data & ~0x3FF) | (iface_adc_data_r( device, 1) & 0x3FF); } break; #endif } verboselog( device->machine(), 9, "(ADC) %08X -> %08X\n", S3C24XX_BASE_ADC + (offset << 2), data); return data; } static void s3c24xx_adc_start( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "ADC start\n"); s3c24xx->adc.regs.adccon &= ~(1 << 0); // A/D conversion is completed s3c24xx->adc.regs.adccon |= (1 << 15); // End of A/D conversion #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) s3c24xx_request_subirq( device, S3C24XX_SUBINT_ADC); #endif } static WRITE32_DEVICE_HANDLER( s3c24xx_adc_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->adc.regs)[offset]; verboselog( device->machine(), 9, "(ADC) %08X <- %08X\n", S3C24XX_BASE_ADC + (offset << 2), data); COMBINE_DATA(&((UINT32*)&s3c24xx->adc.regs)[offset]); switch (offset) { case S3C24XX_ADCCON : { if (((old_value & (1 << 0)) == 0) && ((data & (1 << 0)) != 0)) { s3c24xx_adc_start( device); } } break; } } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static void s3c24xx_touch_screen( device_t *device, int state) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx->adc.regs.adcdat0 = ((state ? 0 : 1) << 15); s3c24xx->adc.regs.adcdat1 = ((state ? 0 : 1) << 15); s3c24xx_request_subirq( device, S3C24XX_SUBINT_TC); } #endif /* SPI */ static void s3c24xx_spi_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); for (int i = 0; i < S3C24XX_SPI_COUNT; i++) { s3c24xx_spi_t *spi = &s3c24xx->spi[i]; memset( &spi->regs, 0, sizeof( spi->regs)); spi->regs.spsta = 1; #if defined(DEVICE_S3C2400) || defined(DEVICE_S3C2410) spi->regs.sppin = 2; #endif } } static UINT32 s3c24xx_spi_r( device_t *device, UINT32 ch, UINT32 offset) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->spi[ch].regs)[offset]; switch (offset) { case S3C24XX_SPSTA : { data = data | (1 << 0); // [bit 0] Transfer Ready Flag } break; } return data; } static void s3c24xx_spi_w( device_t *device, UINT32 ch, UINT32 offset, UINT32 data, UINT32 mem_mask) { s3c24xx_t *s3c24xx = get_token( device); COMBINE_DATA(&((UINT32*)&s3c24xx->spi[ch].regs)[offset]); } static READ32_DEVICE_HANDLER( s3c24xx_spi_0_r ) { UINT32 data = s3c24xx_spi_r( device, 0, offset); verboselog( device->machine(), 9, "(SPI 0) %08X -> %08X\n", S3C24XX_BASE_SPI_0 + (offset << 2), data); return data; } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static READ32_DEVICE_HANDLER( s3c24xx_spi_1_r ) { UINT32 data = s3c24xx_spi_r( device, 1, offset); verboselog( device->machine(), 9, "(SPI 1) %08X -> %08X\n", S3C24XX_BASE_SPI_1 + (offset << 2), data); return data; } #endif static WRITE32_DEVICE_HANDLER( s3c24xx_spi_0_w ) { verboselog( device->machine(), 9, "(SPI 0) %08X <- %08X\n", S3C24XX_BASE_SPI_0 + (offset << 2), data); s3c24xx_spi_w( device, 0, offset, data, mem_mask); } #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static WRITE32_DEVICE_HANDLER( s3c24xx_spi_1_w ) { verboselog( device->machine(), 9, "(SPI 1) %08X <- %08X\n", S3C24XX_BASE_SPI_1 + (offset << 2), data); s3c24xx_spi_w( device, 1, offset, data, mem_mask); } #endif /* MMC Interface */ #if defined(DEVICE_S3C2400) static void s3c24xx_mmc_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_mmc_t *mmc = &s3c24xx->mmc; memset( &mmc->regs, 0, sizeof( mmc->regs)); } static READ32_DEVICE_HANDLER( s3c24xx_mmc_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->mmc.regs.data[offset]; verboselog( device->machine(), 9, "(MMC) %08X -> %08X\n", S3C24XX_BASE_MMC + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_mmc_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(MMC) %08X <- %08X\n", S3C24XX_BASE_MMC + (offset << 2), data); COMBINE_DATA(&s3c24xx->mmc.regs.data[offset]); } #endif /* SD Interface */ #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static void s3c24xx_sdi_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_sdi_t *sdi = &s3c24xx->sdi; memset( &sdi->regs, 0, sizeof( sdi->regs)); #if defined(DEVICE_S3C2410) sdi->regs.data[0x24/4] = 0x2000; #elif defined(DEVICE_S3C2440) sdi->regs.data[0x04/4] = 1; sdi->regs.data[0x24/4] = 0x10000; #endif } static READ32_DEVICE_HANDLER( s3c24xx_sdi_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->sdi.regs.data[offset]; verboselog( device->machine(), 9, "(SDI) %08X -> %08X\n", S3C24XX_BASE_SDI + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_sdi_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(SDI) %08X <- %08X\n", S3C24XX_BASE_SDI + (offset << 2), data); COMBINE_DATA(&s3c24xx->sdi.regs.data[offset]); } #endif /* NAND Flash */ #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static void s3c24xx_nand_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_nand_t *nand = &s3c24xx->nand; memset( &nand->regs, 0, sizeof( nand->regs)); #if defined(DEVICE_S3C2440) nand->regs.nfconf = 0x1000; nand->regs.nfcont = 0x0384; #endif } INLINE void iface_nand_command_w( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->nand.command_w) { (s3c24xx->iface->nand.command_w)( device, 0, data); } } INLINE void iface_nand_address_w( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->nand.address_w) { (s3c24xx->iface->nand.address_w)( device, 0, data); } } INLINE UINT8 iface_nand_data_r( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->nand.data_r) { return (s3c24xx->iface->nand.data_r)( device, 0); } else { return 0; } } INLINE void iface_nand_data_w( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); if (s3c24xx->iface->nand.data_w) { (s3c24xx->iface->nand.data_w)( device, 0, data); } } static void nand_update_mecc( UINT8 *ecc, int pos, UINT8 data) { int bit[8]; UINT8 temp; bit[0] = (data >> 0) & 1; bit[1] = (data >> 1) & 1; bit[2] = (data >> 2) & 1; bit[3] = (data >> 3) & 1; bit[4] = (data >> 4) & 1; bit[5] = (data >> 5) & 1; bit[6] = (data >> 6) & 1; bit[7] = (data >> 7) & 1; // column parity ecc[2] ^= ((bit[6] ^ bit[4] ^ bit[2] ^ bit[0]) << 2); ecc[2] ^= ((bit[7] ^ bit[5] ^ bit[3] ^ bit[1]) << 3); ecc[2] ^= ((bit[5] ^ bit[4] ^ bit[1] ^ bit[0]) << 4); ecc[2] ^= ((bit[7] ^ bit[6] ^ bit[3] ^ bit[2]) << 5); ecc[2] ^= ((bit[3] ^ bit[2] ^ bit[1] ^ bit[0]) << 6); ecc[2] ^= ((bit[7] ^ bit[6] ^ bit[5] ^ bit[4]) << 7); // line parity temp = bit[7] ^ bit[6] ^ bit[5] ^ bit[4] ^ bit[3] ^ bit[2] ^ bit[1] ^ bit[0]; if (pos & 0x001) ecc[0] ^= (temp << 1); else ecc[0] ^= (temp << 0); if (pos & 0x002) ecc[0] ^= (temp << 3); else ecc[0] ^= (temp << 2); if (pos & 0x004) ecc[0] ^= (temp << 5); else ecc[0] ^= (temp << 4); if (pos & 0x008) ecc[0] ^= (temp << 7); else ecc[0] ^= (temp << 6); if (pos & 0x010) ecc[1] ^= (temp << 1); else ecc[1] ^= (temp << 0); if (pos & 0x020) ecc[1] ^= (temp << 3); else ecc[1] ^= (temp << 2); if (pos & 0x040) ecc[1] ^= (temp << 5); else ecc[1] ^= (temp << 4); if (pos & 0x080) ecc[1] ^= (temp << 7); else ecc[1] ^= (temp << 6); if (pos & 0x100) ecc[2] ^= (temp << 1); else ecc[2] ^= (temp << 0); if (pos & 0x200) ecc[3] ^= (temp << 5); else ecc[3] ^= (temp << 4); if (pos & 0x400) ecc[3] ^= (temp << 7); else ecc[3] ^= (temp << 6); } #if defined(DEVICE_S3C2440) static void nand_update_secc( UINT8 *ecc, int pos, UINT8 data) { int bit[8]; UINT8 temp; bit[0] = (data >> 0) & 1; bit[1] = (data >> 1) & 1; bit[2] = (data >> 2) & 1; bit[3] = (data >> 3) & 1; bit[4] = (data >> 4) & 1; bit[5] = (data >> 5) & 1; bit[6] = (data >> 6) & 1; bit[7] = (data >> 7) & 1; // column parity ecc[1] ^= ((bit[6] ^ bit[4] ^ bit[2] ^ bit[0]) << 6); ecc[1] ^= ((bit[7] ^ bit[5] ^ bit[3] ^ bit[1]) << 7); ecc[0] ^= ((bit[5] ^ bit[4] ^ bit[1] ^ bit[0]) << 0); ecc[0] ^= ((bit[7] ^ bit[6] ^ bit[3] ^ bit[2]) << 1); ecc[0] ^= ((bit[3] ^ bit[2] ^ bit[1] ^ bit[0]) << 2); ecc[0] ^= ((bit[7] ^ bit[6] ^ bit[5] ^ bit[4]) << 3); // line parity temp = bit[7] ^ bit[6] ^ bit[5] ^ bit[4] ^ bit[3] ^ bit[2] ^ bit[1] ^ bit[0]; if (pos & 0x001) ecc[0] ^= (temp << 5); else ecc[0] ^= (temp << 4); if (pos & 0x002) ecc[0] ^= (temp << 7); else ecc[0] ^= (temp << 6); if (pos & 0x004) ecc[1] ^= (temp << 3); else ecc[1] ^= (temp << 2); if (pos & 0x008) ecc[1] ^= (temp << 5); else ecc[1] ^= (temp << 4); } #endif static void s3c24xx_nand_update_ecc( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_nand_t *nand = &s3c24xx->nand; UINT8 temp[4]; #if defined(DEVICE_S3C2410) temp[0] = nand->mecc[0]; temp[1] = nand->mecc[1]; temp[2] = nand->mecc[2]; nand_update_mecc( nand->mecc, nand->ecc_pos++, data); verboselog( device->machine(), 5, "NAND - MECC %03X - %02X %02X %02X -> %02X %02X %02X\n", nand->ecc_pos - 1, temp[0], temp[1], temp[2], nand->mecc[0], nand->mecc[1], nand->mecc[2]); if (nand->ecc_pos == 512) nand->ecc_pos = 0; #else if ((nand->regs.nfcont & (1 << 5)) == 0) { temp[0] = nand->mecc[0]; temp[1] = nand->mecc[1]; temp[2] = nand->mecc[2]; temp[3] = nand->mecc[3]; nand_update_mecc( nand->mecc, nand->ecc_pos++, data); verboselog( device->machine(), 5, "NAND - MECC %03X - %02X %02X %02X %02X -> %02X %02X %02X %02X\n", nand->ecc_pos - 1, temp[0], temp[1], temp[2], temp[3], nand->mecc[0], nand->mecc[1], nand->mecc[2], nand->mecc[3]); if (nand->ecc_pos == 2048) nand->ecc_pos = 0; } if ((nand->regs.nfcont & (1 << 6)) == 0) { temp[0] = nand->secc[0]; temp[1] = nand->secc[1]; nand_update_secc( nand->secc, nand->ecc_pos++, data); verboselog( device->machine(), 5, "NAND - SECC %02X - %02X %02X -> %02X %02X\n", nand->ecc_pos - 1, temp[0], temp[1], nand->secc[0], nand->secc[1]); if (nand->ecc_pos == 16) nand->ecc_pos = 0; } #endif } static void s3c24xx_nand_command_w( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "NAND write command %02X\n", data); s3c24xx->nand.data_count = 0; iface_nand_command_w( device, data); } static void s3c24xx_nand_address_w( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "NAND write address %02X\n", data); s3c24xx->nand.data_count = 0; iface_nand_address_w( device, data); } static UINT8 s3c24xx_nand_data_r( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); UINT8 data = iface_nand_data_r( device); verboselog( device->machine(), 5, "NAND read data %02X [%04X]\n", data, s3c24xx->nand.data_count++); s3c24xx_nand_update_ecc( device, data); return data; } static void s3c24xx_nand_data_w( device_t *device, UINT8 data) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "NAND write data %02X [%04X]\n", data, s3c24xx->nand.data_count++); iface_nand_data_w( device, data); s3c24xx_nand_update_ecc( device, data); } static READ32_DEVICE_HANDLER( s3c24xx_nand_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = ((UINT32*)&s3c24xx->nand.regs)[offset]; switch (offset) { case S3C24XX_NFDATA : { data = 0; #if defined(DEVICE_S3C2410) data = data | s3c24xx_nand_data_r( device); #elif defined(DEVICE_S3C2440) if ((mem_mask & 0x000000FF) != 0) data = data | (s3c24xx_nand_data_r( device) << 0); if ((mem_mask & 0x0000FF00) != 0) data = data | (s3c24xx_nand_data_r( device) << 8); if ((mem_mask & 0x00FF0000) != 0) data = data | (s3c24xx_nand_data_r( device) << 16); if ((mem_mask & 0xFF000000) != 0) data = data | (s3c24xx_nand_data_r( device) << 24); #endif } break; #if defined(DEVICE_S3C2410) case S3C24XX_NFECC : { data = ((s3c24xx->nand.mecc[2] << 16) | (s3c24xx->nand.mecc[1] << 8) | (s3c24xx->nand.mecc[0] << 0)); } break; #endif #if defined(DEVICE_S3C2440) case S3C24XX_NFMECC0 : { data = (s3c24xx->nand.mecc[3] << 24) | (s3c24xx->nand.mecc[2] << 16) | (s3c24xx->nand.mecc[1] << 8) | (s3c24xx->nand.mecc[0] << 0); } break; case S3C24XX_NFSECC : { data = (s3c24xx->nand.secc[1] << 8) | (s3c24xx->nand.secc[0] << 0); } break; case S3C24XX_NFESTAT0 : { data &= ~0x000000F; // no main/spare ECC errors } break; case S3C24XX_NFESTAT1 : { data &= ~0x000000F; // no main/spare ECC errors } break; #endif } verboselog( device->machine(), 9, "(NAND) %08X -> %08X (%08X)\n", S3C24XX_BASE_NAND + (offset << 2), data, mem_mask); return data; } static void s3c24xx_nand_init_ecc( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 5, "NAND - init ecc\n"); s3c24xx->nand.mecc[0] = 0xFF; s3c24xx->nand.mecc[1] = 0xFF; s3c24xx->nand.mecc[2] = 0xFF; #if defined(DEVICE_S3C2440) s3c24xx->nand.mecc[3] = 0xFF; s3c24xx->nand.secc[0] = 0; s3c24xx->nand.secc[1] = 0; #endif s3c24xx->nand.ecc_pos = 0; } static WRITE32_DEVICE_HANDLER( s3c24xx_nand_w ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 old_value = ((UINT32*)&s3c24xx->nand.regs)[offset]; verboselog( device->machine(), 9, "(NAND) %08X <- %08X (%08X)\n", S3C24XX_BASE_NAND + (offset << 2), data, mem_mask); COMBINE_DATA(&((UINT32*)&s3c24xx->nand.regs)[offset]); switch (offset) { #if defined(DEVICE_S3C2410) case S3C24XX_NFCONF : { if ((data & (1 << 12)) != 0) { s3c24xx_nand_init_ecc( device); } } break; #endif #if defined(DEVICE_S3C2440) case S3C24XX_NFCONT : { if ((data & (1 << 4)) != 0) { s3c24xx_nand_init_ecc( device); } } break; #endif case S3C24XX_NFSTAT : { s3c24xx->nand.regs.nfstat = (s3c24xx->nand.regs.nfstat & ~0x03) | (old_value & 0x03); // read-only #if defined(DEVICE_S3C2440) if ((data & (1 << 2)) != 0) { s3c24xx->nand.regs.nfstat &= ~(1 << 2); // "RnB_TransDetect, to clear this value write 1" } #endif } break; case S3C24XX_NFCMD : { s3c24xx_nand_command_w( device, data); } break; case S3C24XX_NFADDR : { s3c24xx_nand_address_w( device, data); } break; case S3C24XX_NFDATA : { #if defined(DEVICE_S3C2410) s3c24xx_nand_data_w( device, data & 0xFF); #elif defined(DEVICE_S3C2440) if ((mem_mask & 0x000000FF) != 0) s3c24xx_nand_data_w( device, (data >> 0) & 0xFF); if ((mem_mask & 0x0000FF00) != 0) s3c24xx_nand_data_w( device, (data >> 8) & 0xFF); if ((mem_mask & 0x00FF0000) != 0) s3c24xx_nand_data_w( device, (data >> 16) & 0xFF); if ((mem_mask & 0xFF000000) != 0) s3c24xx_nand_data_w( device, (data >> 24) & 0xFF); #endif } break; } } ATTR_UNUSED static WRITE_LINE_DEVICE_HANDLER( s3c24xx_pin_frnb_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "s3c24xx_pin_frnb_w (%d)\n", state); #if defined(DEVICE_S3C2440) if ((BIT( s3c24xx->nand.regs.nfstat, 0) == 0) && (state != 0)) { s3c24xx->nand.regs.nfstat |= (1 << 2); if (BIT( s3c24xx->nand.regs.nfcont, 9) != 0) { s3c24xx_request_irq( device, S3C24XX_INT_NFCON); } } #endif if (state == 0) { s3c24xx->nand.regs.nfstat &= ~(1 << 0); } else { s3c24xx->nand.regs.nfstat |= (1 << 0); } } #endif /* Camera Interface */ #if defined(DEVICE_S3C2440) static void s3c24xx_cam_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_cam_t *cam = &s3c24xx->cam; memset( &cam->regs, 0, sizeof( cam->regs)); } static READ32_DEVICE_HANDLER( s3c24xx_cam_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->cam.regs.data[offset]; verboselog( device->machine(), 9, "(CAM) %08X -> %08X\n", S3C24XX_BASE_CAM + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_cam_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(CAM) %08X <- %08X\n", S3C24XX_BASE_CAM + (offset << 2), data); COMBINE_DATA(&s3c24xx->cam.regs.data[offset]); } #endif /* AC97 Interface */ #if defined(DEVICE_S3C2440) static void s3c24xx_ac97_reset( device_t *device) { s3c24xx_t *s3c24xx = get_token( device); s3c24xx_ac97_t *ac97 = &s3c24xx->ac97; memset( &ac97->regs, 0, sizeof( ac97->regs)); } static READ32_DEVICE_HANDLER( s3c24xx_ac97_r ) { s3c24xx_t *s3c24xx = get_token( device); UINT32 data = s3c24xx->ac97.regs.data[offset]; verboselog( device->machine(), 9, "(AC97) %08X -> %08X\n", S3C24XX_BASE_AC97 + (offset << 2), data); return data; } static WRITE32_DEVICE_HANDLER( s3c24xx_ac97_w ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 9, "(AC97) %08X <- %08X\n", S3C24XX_BASE_AC97 + (offset << 2), data); COMBINE_DATA(&s3c24xx->ac97.regs.data[offset]); } #endif // ... #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) static void s3c24xx_nand_auto_boot( device_t *device) { int om0 = iface_core_pin_r( device, S3C24XX_CORE_PIN_OM0); int om1 = iface_core_pin_r( device, S3C24XX_CORE_PIN_OM1); if ((om0 == 0) && (om1 == 0)) { s3c24xx_t *s3c24xx = get_token( device); int ncon = iface_core_pin_r( device, S3C24XX_CORE_PIN_NCON); UINT8 *ptr = s3c24xx->steppingstone; int page_size, address_cycle; #if defined(DEVICE_S3C2410) page_size = 512; if (ncon == 0) { address_cycle = 3; // byte-page-page } else { address_cycle = 4; // byte-page-page-page } #elif defined(DEVICE_S3C2440) UINT32 port_g = iface_gpio_port_r( device, S3C24XX_GPIO_PORT_G, 0); if (ncon == 0) { if (BIT( port_g, 13) == 0) { page_size = 256; address_cycle = 3; // byte-page-page } else { page_size = 512; address_cycle = 4; // byte-page-page-page } } else { if (BIT( port_g, 13) == 0) { page_size = 1024; address_cycle = 4; // byte-byte-page-page or byte-page-page-page ??? assume latter } else { page_size = 2048; address_cycle = 5; // byte-byte-page-page-page } } #endif iface_nand_command_w( device, 0xFF); for (int page = 0; page < (4 * 1024) / page_size; page++) { iface_nand_command_w( device, 0x00); iface_nand_address_w( device, 0x00); if (address_cycle > 4) { iface_nand_address_w( device, 0x00); } iface_nand_address_w( device, (page >> 0) & 0xFF); iface_nand_address_w( device, (page >> 8) & 0xFF); if (address_cycle > 3) { iface_nand_address_w( device, (page >> 16) & 0xFF); } for (int i = 0; i < page_size; i++) { *ptr++ = iface_nand_data_r( device); } } iface_nand_command_w( device, 0xFF); } } #endif static DEVICE_RESET( s3c24xx ) { verboselog( device->machine(), 1, "s3c24xx device reset\n"); s3c24xx_uart_reset( device); s3c24xx_pwm_reset( device); s3c24xx_dma_reset( device); s3c24xx_iic_reset( device); s3c24xx_iis_reset( device); s3c24xx_lcd_reset( device); s3c24xx_rtc_reset( device); s3c24xx_wdt_reset( device); s3c24xx_irq_reset( device); s3c24xx_gpio_reset( device); s3c24xx_memcon_reset( device); s3c24xx_clkpow_reset( device); s3c24xx_usb_host_reset( device); s3c24xx_usb_device_reset( device); s3c24xx_adc_reset( device); s3c24xx_spi_reset( device); #if defined(DEVICE_S3C2400) s3c24xx_mmc_reset( device); #endif #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) s3c24xx_sdi_reset( device); s3c24xx_nand_reset( device); #endif #if defined(DEVICE_S3C2440) s3c24xx_cam_reset( device); s3c24xx_ac97_reset( device); #endif #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) s3c24xx_nand_auto_boot( device); #endif } static DEVICE_START( s3c24xx ) { s3c24xx_t *s3c24xx = get_token( device); verboselog( device->machine(), 1, "s3c24xx device start\n"); s3c24xx->iface = (const s3c24xx_interface *)device->static_config(); for (int i = 0; i < 5; i++) { s3c24xx->pwm.timer[i] = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_pwm_timer_exp), (void*)device); } for (int i = 0; i < S3C24XX_DMA_COUNT; i++) { s3c24xx->dma[i].timer = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_dma_timer_exp), (void*)device); } s3c24xx->iic.timer = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_iic_timer_exp), (void*)device); s3c24xx->iis.timer = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_iis_timer_exp), (void*)device); s3c24xx->lcd.timer = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_lcd_timer_exp), (void*)device); s3c24xx->rtc.timer_tick_count = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_rtc_timer_tick_count_exp), (void*)device); s3c24xx->rtc.timer_update = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_rtc_timer_update_exp), (void*)device); s3c24xx->wdt.timer = device->machine().scheduler().timer_alloc( FUNC(s3c24xx_wdt_timer_exp), (void*)device); #if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) int om0 = iface_core_pin_r( device, S3C24XX_CORE_PIN_OM0); int om1 = iface_core_pin_r( device, S3C24XX_CORE_PIN_OM1); if ((om0 == 0) && (om1 == 0)) { address_space *space = device->machine().device( "maincpu")->memory().space( AS_PROGRAM); space->install_ram( 0x00000000, 0x00000fff, s3c24xx->steppingstone); space->install_ram( 0x40000000, 0x40000fff, s3c24xx->steppingstone); } #endif }