diff options
author | 2012-08-21 10:41:19 +0000 | |
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committer | 2012-08-21 10:41:19 +0000 | |
commit | 7285b359d259b2ae0fdf85096571c386ec8c991a (patch) | |
tree | a027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/machine/s3c44b0.c | |
parent | 67c425e90757876a6716b7867df30c0149912e74 (diff) |
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/machine/s3c44b0.c')
-rw-r--r-- | src/mess/machine/s3c44b0.c | 2058 |
1 files changed, 2058 insertions, 0 deletions
diff --git a/src/mess/machine/s3c44b0.c b/src/mess/machine/s3c44b0.c new file mode 100644 index 00000000000..2bf609def85 --- /dev/null +++ b/src/mess/machine/s3c44b0.c @@ -0,0 +1,2058 @@ +/******************************************************************************* + + Samsung S3C44B0 + + (c) 2011 Tim Schuerewegen + +*******************************************************************************/ + +#include "emu.h" +#include "cpu/arm7/arm7.h" +#include "cpu/arm7/arm7core.h" +#include "machine/s3c44b0.h" +#include "sound/dac.h" +#include "coreutil.h" + +#define VERBOSE_LEVEL ( 0 ) + +INLINE void ATTR_PRINTF(3,4) verboselog( running_machine &machine, int n_level, const char *s_fmt, ...) +{ + if (VERBOSE_LEVEL >= n_level) + { + va_list v; + char buf[32768]; + va_start( v, s_fmt); + vsprintf( buf, s_fmt, v); + va_end( v); + logerror( "%s: %s", machine.describe_context(), buf); + } +} + +/******************************************************************************* + 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)) + +/*************************************************************************** + PROTOTYPES +***************************************************************************/ + +static UINT32 s3c44b0_get_mclk( device_t *device); + +static void s3c44b0_bdma_request_iis( device_t *device); +//static void s3c44b0_dma_request_pwm( device_t *device); + +/*************************************************************************** + INLINE FUNCTIONS +***************************************************************************/ + +INLINE s3c44b0_t *get_token( device_t *device) +{ + assert(device != NULL); + return (s3c44b0_t *)downcast<legacy_device_base *>(device)->token(); +} + +/*************************************************************************** + IMPLEMENTATION +***************************************************************************/ + +/* ... */ + +static void s3c44b0_reset( device_t *device) +{ + fatalerror( "s3c44b0_reset\n"); +} + +/* LCD Controller */ + +static rgb_t s3c44b0_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 UINT8 s3c44b0_get_color_stn_08_r( device_t *device, UINT8 data) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + return ((lcd->regs.redlut >> (BITS( data, 7, 5) << 2)) & 0xF) << 4; +} + +static UINT8 s3c44b0_get_color_stn_08_g( device_t *device, UINT8 data) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + return ((lcd->regs.greenlut >> (BITS( data, 4, 2) << 2)) & 0xF) << 4; +} + +static UINT8 s3c44b0_get_color_stn_08_b( device_t *device, UINT8 data) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + return ((lcd->regs.bluelut >> (BITS( data, 1, 0) << 2)) & 0xF) << 4; +} + +static void s3c44b0_lcd_dma_reload( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + int lcdbank, lcdbaseu, lcdbasel; + lcdbank = BITS( lcd->regs.lcdsaddr1, 26, 21); + lcdbaseu = BITS( lcd->regs.lcdsaddr1, 20, 0); + lcdbasel = BITS( lcd->regs.lcdsaddr2, 20, 0); + lcd->vramaddr_cur = (lcdbank << 22) | (lcdbaseu << 1); + lcd->vramaddr_max = (lcdbank << 22) | (lcdbasel << 1); + if (lcdbasel == 0) lcd->vramaddr_max += 1 << 22; + lcd->offsize = BITS( lcd->regs.lcdsaddr3, 19, 9); + lcd->pagewidth_cur = 0; + lcd->pagewidth_max = BITS( lcd->regs.lcdsaddr3, 8, 0); + lcd->bswp = BIT( lcd->regs.lcdsaddr2, 29); // note: juicebox changes bswp when video playback starts +// verboselog( device->machine(), 3, "LCD - vramaddr %08X %08X offsize %08X pagewidth %08X\n", lcd->vramaddr_cur, lcd->vramaddr_max, lcd->offsize, lcd->pagewidth_max); +} + +static void s3c44b0_lcd_dma_init( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + lcd->modesel = BITS( lcd->regs.lcdsaddr1, 28, 27); +// verboselog( device->machine(), 3, "LCD - modesel %d bswp %d\n", lcd->modesel, lcd->bswp); + s3c44b0_lcd_dma_reload( device); +} + +static void s3c44b0_lcd_dma_read( device_t *device, int count, UINT8 *data) +{ + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0_lcd_t *lcd = &s3c44b0->lcd; + UINT8 *vram; + vram = (UINT8 *)s3c44b0->space->get_read_ptr( lcd->vramaddr_cur); + for (int i = 0; i < count / 2; i++) + { + if (lcd->bswp == 0) + { + if ((lcd->vramaddr_cur & 2) == 0) + { + data[0] = *(vram + 3); + data[1] = *(vram + 2); + } + else + { + data[0] = *(vram - 1); + data[1] = *(vram - 2); + } + } + else + { + data[0] = *(vram + 0); + data[1] = *(vram + 1); + } + lcd->vramaddr_cur += 2; + lcd->pagewidth_cur++; + if (lcd->pagewidth_cur >= lcd->pagewidth_max) + { + lcd->vramaddr_cur += lcd->offsize << 1; + if (lcd->vramaddr_cur >= lcd->vramaddr_max) + { + s3c44b0_lcd_dma_reload( device); + } + lcd->pagewidth_cur = 0; + vram = (UINT8 *)s3c44b0->space->get_read_ptr( lcd->vramaddr_cur); + } + else + { + vram += 2; + } + data += 2; + } +} + +static void s3c44b0_lcd_render_stn_04( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + UINT8 *bitmap = lcd->bitmap + ((lcd->vpos - lcd->vpos_min) * (lcd->hpos_max - lcd->hpos_min + 1)) + (lcd->hpos - lcd->hpos_min); + UINT8 data[16]; + s3c44b0_lcd_dma_read( device, 16, data); + for (int i = 0; i < 16; i++) + { + for (int j = 0; j < 2; j++) + { + *bitmap++ = s3c44b0_get_color_stn_04( device, (data[i] >> 4) & 0x0F); + data[i] = data[i] << 4; + lcd->hpos++; + if (lcd->hpos >= lcd->hpos_min + (lcd->pagewidth_max << 2)) + { + lcd->vpos++; + if (lcd->vpos > lcd->vpos_max) + { + lcd->vpos = lcd->vpos_min; + bitmap = lcd->bitmap; + } + lcd->hpos = lcd->hpos_min; + } + } + } +} + +static void s3c44b0_lcd_render_stn_08( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + UINT8 *bitmap = lcd->bitmap + ((lcd->vpos - lcd->vpos_min) * (lcd->hpos_max - lcd->hpos_min + 1)) + (lcd->hpos - lcd->hpos_min); + UINT8 data[16]; + s3c44b0_lcd_dma_read( device, 16, data); + for (int i = 0; i < 16; i++) + { + UINT8 xxx[3]; + xxx[0] = s3c44b0_get_color_stn_08_r( device, data[i]); + xxx[1] = s3c44b0_get_color_stn_08_g( device, data[i]); + xxx[2] = s3c44b0_get_color_stn_08_b( device, data[i]); + for (int j = 0; j < 3; j++) + { + *bitmap++ = xxx[j]; + lcd->hpos++; + if (lcd->hpos >= lcd->hpos_min + (lcd->pagewidth_max * 6)) + { + lcd->vpos++; + if (lcd->vpos > lcd->vpos_max) + { + lcd->vpos = lcd->vpos_min; + bitmap = lcd->bitmap; + } + lcd->hpos = lcd->hpos_min; + } + } + } +} + +static attotime s3c44b0_time_until_pos( device_t *device, int vpos, int hpos) +{ + running_machine &machine = device->machine(); + s3c44b0_lcd_t *lcd = (s3c44b0_lcd_t *)&(get_token( device)->lcd); + attoseconds_t time1, time2; + attotime retval; + verboselog( device->machine(), 3, "s3c44b0_time_until_pos - vpos %d hpos %d\n", vpos, hpos); + time1 = (attoseconds_t)vpos * lcd->scantime + (attoseconds_t)hpos * lcd->pixeltime; + time2 = (machine.time() - lcd->frame_time).as_attoseconds(); + verboselog( device->machine(), 3, "machine %f frametime %f time1 %f time2 %f\n", machine.time().as_double(), lcd->frame_time.as_double(), attotime( 0, time1).as_double(), attotime( 0, time2).as_double()); + while (time1 <= time2) time1 += lcd->frame_period; + retval = attotime( 0, time1 - time2); + verboselog( device->machine(), 3, "result %f\n", retval.as_double()); + return retval; +} + +static int s3c44b0_lcd_get_vpos( device_t *device) +{ + running_machine &machine = device->machine(); + s3c44b0_lcd_t *lcd = (s3c44b0_lcd_t *)&(get_token( device)->lcd); + attoseconds_t delta; + int vpos; + delta = (machine.time() - lcd->frame_time).as_attoseconds(); + delta = delta + (lcd->pixeltime / 2); + vpos = delta / lcd->scantime; + return (lcd->vpos_min + vpos) % lcd->vpos_end; +} + +static int s3c44b0_lcd_get_hpos( device_t *device) +{ + running_machine &machine = device->machine(); + s3c44b0_lcd_t *lcd = (s3c44b0_lcd_t *)&(get_token( device)->lcd); + attoseconds_t delta; + int vpos; + delta = (machine.time() - lcd->frame_time).as_attoseconds(); + delta = delta + (lcd->pixeltime / 2); + vpos = delta / lcd->scantime; + delta = delta - (vpos * lcd->scantime); + return delta / lcd->pixeltime; +} + +static TIMER_CALLBACK( s3c44b0_lcd_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + int vpos = lcd->vpos; + verboselog( machine, 2, "LCD timer callback (%f)\n", machine.time().as_double()); + verboselog( machine, 3, "LCD - (1) vramaddr %08X vpos %d hpos %d\n", lcd->vramaddr_cur, lcd->vpos, lcd->hpos); + switch (lcd->modesel) + { + case S3C44B0_MODESEL_04 : s3c44b0_lcd_render_stn_04( device); break; + case S3C44B0_MODESEL_08 : s3c44b0_lcd_render_stn_08( device); break; + default : verboselog( machine, 0, "s3c44b0_lcd_timer_exp: modesel %d not supported\n", lcd->modesel); break; + } + verboselog( machine, 3, "LCD - (2) vramaddr %08X vpos %d hpos %d\n", lcd->vramaddr_cur, lcd->vpos, lcd->hpos); + if (lcd->vpos < vpos) + { +// verboselog( machine, 3, "LCD - (1) frame_time %f\n", attotime_to_double( lcd->frame_time)); + lcd->frame_time = machine.time() + s3c44b0_time_until_pos( device, lcd->vpos_min, lcd->hpos_min); +// verboselog( machine, 3, "LCD - (2) frame_time %f\n", attotime_to_double( lcd->frame_time)); + } + lcd->timer->adjust( s3c44b0_time_until_pos( device, lcd->vpos, lcd->hpos), 0); +} + +static void s3c44b0_video_start( device_t *device, running_machine &machine) +{ + // do nothing +} + +static UINT32 s3c44b0_video_update( device_t *device, screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + if (lcd->regs.lcdcon1 & (1 << 0)) + { + if (lcd->bitmap) + { + for (int y = 0; y < screen.height(); y++) + { + UINT32 *scanline = &bitmap.pix32(y); + UINT8 *vram = lcd->bitmap + y * (lcd->hpos_max - lcd->hpos_min + 1); + for (int x = 0; x < screen.width(); x++) + { + *scanline++ = MAKE_RGB( vram[0], vram[1], vram[2]); + vram += 3; + } + } + } + } + else + { + for (int y = 0; y < screen.height(); y++) + { + UINT32 *scanline = &bitmap.pix32(y); + memset( scanline, 0, screen.width() * 4); + } + } + return 0; +} + +static READ32_DEVICE_HANDLER( s3c44b0_lcd_r ) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + UINT32 data = ((UINT32*)&lcd->regs)[offset]; + switch (offset) + { + case S3C44B0_LCDCON1 : + { + int vpos = 0; + // make sure line counter is going + if (lcd->regs.lcdcon1 & (1 << 0)) + { + vpos = s3c44b0_lcd_get_vpos( device); + int hpos = s3c44b0_lcd_get_hpos( device); + if (hpos < lcd->hpos_min) vpos = vpos - 1; + if ((vpos < lcd->vpos_min) || (vpos > lcd->vpos_max)) vpos = lcd->vpos_max; + vpos = lcd->vpos_max - vpos; + } + data = (data & ~0xFFC00000) | (vpos << 22); + } + break; + } +// verboselog( device->machine(), 9, "(LCD) %08X -> %08X\n", S3C44B0_BASE_LCD + (offset << 2), data); + return data; +} + +static void s3c44b0_lcd_configure( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + screen_device *screen = device->machine().primary_screen; + int dismode, clkval, lineval, wdly, hozval, lineblank, wlh, mclk; + double vclk, framerate; + int width, height; + verboselog( device->machine(), 5, "s3c44b0_lcd_configure\n"); + dismode = BITS( lcd->regs.lcdcon1, 6, 5); + clkval = BITS( lcd->regs.lcdcon1, 21, 12); + lineval = BITS( lcd->regs.lcdcon2, 9, 0); + wdly = BITS( lcd->regs.lcdcon1, 9, 8); + hozval = BITS( lcd->regs.lcdcon2, 20, 10); + lineblank = BITS( lcd->regs.lcdcon2, 31, 21); + wlh = BITS( lcd->regs.lcdcon1, 11, 10); + mclk = s3c44b0_get_mclk( device); + verboselog( device->machine(), 3, "LCD - dismode %d clkval %d lineval %d wdly %d hozval %d lineblank %d wlh %d mclk %d\n", dismode, clkval, lineval, wdly, hozval, lineblank, wlh, mclk); + vclk = (double)(mclk / (clkval * 2)); + verboselog( device->machine(), 3, "LCD - vclk %f\n", vclk); + framerate = 1 / (((1 / vclk) * (hozval + 1) + (1 / mclk) * (wlh + wdly + lineblank)) * (lineval + 1)); + framerate = framerate / 3; // ??? + verboselog( device->machine(), 3, "LCD - framerate %f\n", framerate); + switch (dismode) + { + case S3C44B0_PNRMODE_STN_04_SS : width = ((hozval + 1) * 4); break; + case S3C44B0_PNRMODE_STN_04_DS : width = ((hozval + 1) * 4); break; + case S3C44B0_PNRMODE_STN_08_SS : width = ((hozval + 1) * 8); break; + default : fatalerror( "invalid display mode (%d)", dismode); break; + } + height = lineval + 1; + lcd->framerate = framerate; + verboselog( device->machine(), 3, "video_screen_configure %d %d %f\n", width, height, lcd->framerate); + screen->configure( screen->width(), screen->height(), screen->visible_area(), HZ_TO_ATTOSECONDS( lcd->framerate)); + lcd->hpos_min = 25; + lcd->hpos_max = 25 + width - 1; + lcd->hpos_end = 25 + width - 1 + 25; + lcd->vpos_min = 25; + lcd->vpos_max = 25 + height - 1; + lcd->vpos_end = 25 + height - 1 + 25; + verboselog( device->machine(), 3, "LCD - min_x %d min_y %d max_x %d max_y %d\n", lcd->hpos_min, lcd->vpos_min, lcd->hpos_max, lcd->vpos_max); + if (lcd->bitmap) + { + auto_free( device->machine(), lcd->bitmap); + } + lcd->bitmap = auto_alloc_array( device->machine(), UINT8, (lcd->hpos_max - lcd->hpos_min + 1) * (lcd->vpos_max - lcd->vpos_min + 1) * 3); + lcd->frame_period = HZ_TO_ATTOSECONDS( lcd->framerate); + lcd->scantime = lcd->frame_period / lcd->vpos_end; + lcd->pixeltime = lcd->frame_period / (lcd->vpos_end * lcd->hpos_end); +// printf( "frame_period %f\n", attotime( 0, lcd->frame_period).as_double()); +// printf( "scantime %f\n", attotime( 0, lcd->scantime).as_double()); +// printf( "pixeltime %f\n", attotime( 0, lcd->pixeltime).as_double()); +} + +static void s3c44b0_lcd_start( device_t *device) +{ + running_machine &machine = device->machine(); + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + screen_device *screen = device->machine().primary_screen; + verboselog( device->machine(), 1, "LCD start\n"); + s3c44b0_lcd_configure( device); + s3c44b0_lcd_dma_init( device); + lcd->vpos = lcd->vpos_min; + lcd->hpos = lcd->hpos_min; + lcd->frame_time = screen->time_until_pos( 0, 0); + lcd->timer->adjust( lcd->frame_time, 0); + lcd->frame_time = machine.time() + lcd->frame_time; +} + +static void s3c44b0_lcd_stop( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + verboselog( device->machine(), 1, "LCD stop\n"); + lcd->timer->adjust( attotime::never, 0); +} + +static void s3c44b0_lcd_recalc( device_t *device) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + if (lcd->regs.lcdcon1 & (1 << 0)) + { + s3c44b0_lcd_start( device); + } + else + { + s3c44b0_lcd_stop( device); + } +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_lcd_w ) +{ + s3c44b0_lcd_t *lcd = &(get_token( device)->lcd); + UINT32 old_value = ((UINT32*)&lcd->regs)[offset]; +// verboselog( device->machine(), 9, "(LCD) %08X <- %08X\n", S3C44B0_BASE_LCD + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&lcd->regs)[offset]); + switch (offset) + { + case S3C44B0_LCDCON1 : + { + if ((old_value & (1 << 0)) != (data & (1 << 0))) + { + s3c44b0_lcd_recalc( device); + } + } + break; + } +} + +/* Clock & Power Management */ + +static UINT32 s3c44b0_get_mclk( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data, mdiv, pdiv, sdiv; + data = s3c44b0->clkpow.regs.pllcon; + mdiv = BITS( data, 19, 12); + pdiv = BITS( data, 9, 4); + sdiv = BITS( data, 1, 0); + return (UINT32)((double)((mdiv + 8) * device->clock()) / (double)((pdiv + 2) * (1 << sdiv))); +} + +static READ32_DEVICE_HANDLER( s3c44b0_clkpow_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->clkpow.regs)[offset]; + verboselog( device->machine(), 9, "(CLKPOW) %08X -> %08X\n", S3C44B0_BASE_CLKPOW + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_clkpow_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 9, "(CLKPOW) %08X <- %08X\n", S3C44B0_BASE_CLKPOW + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->clkpow.regs)[offset]); + switch (offset) + { + case S3C44B0_PLLCON : + { + verboselog( device->machine(), 5, "CLKPOW - mclk %d\n", s3c44b0_get_mclk( device)); + s3c44b0->cpu->set_unscaled_clock( s3c44b0_get_mclk( device) * CLOCK_MULTIPLIER); + } + break; + case S3C44B0_CLKCON : + { + if (data & (1 << 2)) + { + s3c44b0->cpu->spin_until_interrupt(); + } + } + break; + } +} + +/* Interrupt Controller */ + +static void s3c44b0_check_pending_irq( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 temp; + // normal irq + temp = (s3c44b0->irq.regs.intpnd & ~s3c44b0->irq.regs.intmsk) & ~s3c44b0->irq.regs.intmod; + if (temp != 0) + { + UINT32 int_type = 0; + while ((temp & 1) == 0) + { + int_type++; + temp = temp >> 1; + } + s3c44b0->irq.regs.i_ispr |= (1 << int_type); + if (s3c44b0->irq.line_irq != ASSERT_LINE) + { + s3c44b0->cpu->set_input_line( ARM7_IRQ_LINE, ASSERT_LINE); + s3c44b0->irq.line_irq = ASSERT_LINE; + } + } + else + { + if (s3c44b0->irq.line_irq != CLEAR_LINE) + { + s3c44b0->cpu->set_input_line( ARM7_IRQ_LINE, CLEAR_LINE); + s3c44b0->irq.line_irq = CLEAR_LINE; + } + } + // fast irq + temp = (s3c44b0->irq.regs.intpnd & ~s3c44b0->irq.regs.intmsk) & s3c44b0->irq.regs.intmod; + if (temp != 0) + { + UINT32 int_type = 0; + while ((temp & 1) == 0) + { + int_type++; + temp = temp >> 1; + } + if (s3c44b0->irq.line_fiq != ASSERT_LINE) + { + s3c44b0->cpu->set_input_line( ARM7_FIRQ_LINE, ASSERT_LINE); + s3c44b0->irq.line_fiq = ASSERT_LINE; + } + } + else + { + if (s3c44b0->irq.line_fiq != CLEAR_LINE) + { + s3c44b0->cpu->set_input_line( ARM7_FIRQ_LINE, CLEAR_LINE); + s3c44b0->irq.line_fiq = CLEAR_LINE; + } + } +} + +static void s3c44b0_request_irq( device_t *device, UINT32 int_type) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 5, "request irq %d\n", int_type); + s3c44b0->irq.regs.intpnd |= (1 << int_type); + s3c44b0_check_pending_irq( device); +} + +static void s3c44b0_check_pending_eint( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 temp = s3c44b0->gpio.regs.extintpnd; + if (temp != 0) + { + UINT32 int_type = 0; + while ((temp & 1) == 0) + { + int_type++; + temp = temp >> 1; + } + s3c44b0_request_irq( device, S3C44B0_INT_EINT4_7); + } +} + +void s3c44b0_request_eint( device_t *device, UINT32 number) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 5, "request external interrupt %d\n", number); + if (number < 4) + { + s3c44b0_request_irq( device, S3C44B0_INT_EINT0 + number); + } + else + { + s3c44b0->gpio.regs.extintpnd |= (1 << (number - 4)); + s3c44b0_check_pending_eint( device); + } +} + +static READ32_DEVICE_HANDLER( s3c44b0_irq_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->irq.regs)[offset]; + verboselog( device->machine(), 9, "(IRQ) %08X -> %08X\n", S3C44B0_BASE_INT + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_irq_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 9, "(IRQ) %08X <- %08X\n", S3C44B0_BASE_INT + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->irq.regs)[offset]); + switch (offset) + { + case S3C44B0_INTMSK : + { + s3c44b0_check_pending_irq( device); + } + break; + case S3C44B0_I_ISPC : + { + s3c44b0->irq.regs.intpnd = (s3c44b0->irq.regs.intpnd & ~data); // The bit of INTPND bit is cleared to zero by writing '1' on I_ISPC/F_ISPC + s3c44b0->irq.regs.i_ispr = (s3c44b0->irq.regs.i_ispr & ~data); // The pending bit in I_ISPR register should be cleared by writing I_ISPC register. + s3c44b0_check_pending_irq( device); + } + break; + case S3C44B0_F_ISPC : + { + s3c44b0->irq.regs.intpnd = (s3c44b0->irq.regs.intpnd & ~data); // The bit of INTPND bit is cleared to zero by writing '1' on I_ISPC/F_ISPC + s3c44b0_check_pending_irq( device); + } + break; + } +} + +/* PWM Timer */ + +static UINT16 s3c44b0_pwm_calc_observation( device_t *device, int ch) +{ + s3c44b0_t *s3c44b0 = get_token( device); + double timeleft, x1, x2; + UINT32 cnto; + timeleft = (s3c44b0->pwm.timer[ch]->remaining()).as_double(); +// printf( "timeleft %f freq %d cntb %d cmpb %d\n", timeleft, s3c44b0->pwm.freq[ch], s3c44b0->pwm.cnt[ch], s3c44b0->pwm.cmp[ch]); + x1 = 1 / ((double)s3c44b0->pwm.freq[ch] / (s3c44b0->pwm.cnt[ch]- s3c44b0->pwm.cmp[ch] + 1)); + x2 = x1 / timeleft; +// printf( "x1 %f\n", x1); + cnto = s3c44b0->pwm.cmp[ch] + ((s3c44b0->pwm.cnt[ch]- s3c44b0->pwm.cmp[ch]) / x2); +// printf( "cnto %d\n", cnto); + return cnto; +} + +static READ32_DEVICE_HANDLER( s3c44b0_pwm_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->pwm.regs)[offset]; + switch (offset) + { + case S3C44B0_TCNTO0 : + { + data = (data & ~0x0000FFFF) | s3c44b0_pwm_calc_observation( device, 0); + } + break; + case S3C44B0_TCNTO1 : + { + data = (data & ~0x0000FFFF) | s3c44b0_pwm_calc_observation( device, 1); + } + break; + case S3C44B0_TCNTO2 : + { + data = (data & ~0x0000FFFF) | s3c44b0_pwm_calc_observation( device, 2); + } + break; + case S3C44B0_TCNTO3 : + { + data = (data & ~0x0000FFFF) | s3c44b0_pwm_calc_observation( device, 3); + } + break; + case S3C44B0_TCNTO4 : + { + data = (data & ~0x0000FFFF) | s3c44b0_pwm_calc_observation( device, 4); + } + break; + case S3C44B0_TCNTO5 : + { + data = (data & ~0x0000FFFF) | s3c44b0_pwm_calc_observation( device, 5); + } + break; + } + verboselog( device->machine(), 9, "(PWM) %08X -> %08X\n", S3C44B0_BASE_PWM + (offset << 2), data); + return data; +} + +static void s3c44b0_pwm_start( device_t *device, int timer) +{ + s3c44b0_t *s3c44b0 = get_token( device); + const int mux_table[] = { 2, 4, 8, 16}; + const int prescaler_shift[] = { 0, 0, 8, 8, 16, 16}; + const int mux_shift[] = { 0, 4, 8, 12, 16, 20}; + UINT32 mclk, prescaler, mux, cnt, cmp, auto_reload; + double freq, hz; + verboselog( device->machine(), 1, "PWM %d start\n", timer); + mclk = s3c44b0_get_mclk( device); + prescaler = (s3c44b0->pwm.regs.tcfg0 >> prescaler_shift[timer]) & 0xFF; + mux = (s3c44b0->pwm.regs.tcfg1 >> mux_shift[timer]) & 0x0F; + if (mux < 4) + { + freq = (double)mclk / (prescaler + 1) / mux_table[mux]; + } + else + { + // todo + freq = (double)mclk / (prescaler + 1) / 1; + } + switch (timer) + { + case 0 : + { + cnt = BITS( s3c44b0->pwm.regs.tcntb0, 15, 0); + cmp = BITS( s3c44b0->pwm.regs.tcmpb0, 15, 0); + auto_reload = BIT( s3c44b0->pwm.regs.tcon, 3); + } + break; + case 1 : + { + cnt = BITS( s3c44b0->pwm.regs.tcntb1, 15, 0); + cmp = BITS( s3c44b0->pwm.regs.tcmpb1, 15, 0); + auto_reload = BIT( s3c44b0->pwm.regs.tcon, 11); + } + break; + case 2 : + { + cnt = BITS( s3c44b0->pwm.regs.tcntb2, 15, 0); + cmp = BITS( s3c44b0->pwm.regs.tcmpb2, 15, 0); + auto_reload = BIT( s3c44b0->pwm.regs.tcon, 15); + } + break; + case 3 : + { + cnt = BITS( s3c44b0->pwm.regs.tcntb3, 15, 0); + cmp = BITS( s3c44b0->pwm.regs.tcmpb3, 15, 0); + auto_reload = BIT( s3c44b0->pwm.regs.tcon, 19); + } + break; + case 4 : + { + cnt = BITS( s3c44b0->pwm.regs.tcntb4, 15, 0); + cmp = BITS( s3c44b0->pwm.regs.tcmpb4, 15, 0); + auto_reload = BIT( s3c44b0->pwm.regs.tcon, 23); + } + break; + case 5 : + { + cnt = BITS( s3c44b0->pwm.regs.tcntb5, 15, 0); + cmp = 0; + auto_reload = BIT( s3c44b0->pwm.regs.tcon, 26); + } + 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 - mclk=%d prescaler=%d div=%d freq=%f cnt=%d cmp=%d auto_reload=%d hz=%f\n", timer, mclk, prescaler, mux_table[mux], freq, cnt, cmp, auto_reload, hz); + s3c44b0->pwm.cnt[timer] = cnt; + s3c44b0->pwm.cmp[timer] = cmp; + s3c44b0->pwm.freq[timer] = freq; + if (cnt == 0) + { + s3c44b0->pwm.timer[timer]->adjust( attotime::never, 0); + } + else + { + if (auto_reload) + { + s3c44b0->pwm.timer[timer]->adjust( attotime::from_hz( hz), timer, attotime::from_hz( hz)); + } + else + { + s3c44b0->pwm.timer[timer]->adjust( attotime::from_hz( hz), timer); + } + } +} + +static void s3c44b0_pwm_stop( device_t *device, int timer) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 1, "PWM %d stop\n", timer); + s3c44b0->pwm.timer[timer]->adjust( attotime::never, 0); +} + +static void s3c44b0_pwm_recalc( device_t *device, int timer) +{ + s3c44b0_t *s3c44b0 = get_token( device); + const int tcon_shift[] = { 0, 8, 12, 16, 20, 24}; + if (s3c44b0->pwm.regs.tcon & (1 << tcon_shift[timer])) + { + s3c44b0_pwm_start( device, timer); + } + else + { + s3c44b0_pwm_stop( device, timer); + } +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_pwm_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->pwm.regs)[offset]; + verboselog( device->machine(), 9, "(PWM) %08X <- %08X\n", S3C44B0_BASE_PWM + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->pwm.regs)[offset]); + switch (offset) + { + case S3C44B0_TCON : + { + if ((data & (1 << 0)) != (old_value & (1 << 0))) + { + s3c44b0_pwm_recalc( device, 0); + } + if ((data & (1 << 8)) != (old_value & (1 << 8))) + { + s3c44b0_pwm_recalc( device, 1); + } + if ((data & (1 << 12)) != (old_value & (1 << 12))) + { + s3c44b0_pwm_recalc( device, 2); + } + if ((data & (1 << 16)) != (old_value & (1 << 16))) + { + s3c44b0_pwm_recalc( device, 3); + } + if ((data & (1 << 20)) != (old_value & (1 << 20))) + { + s3c44b0_pwm_recalc( device, 4); + } + if ((data & (1 << 24)) != (old_value & (1 << 24))) + { + s3c44b0_pwm_recalc( device, 5); + } + } + break; + } +} + +static TIMER_CALLBACK( s3c44b0_pwm_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + int ch = param; + const int ch_int[] = { S3C44B0_INT_TIMER0, S3C44B0_INT_TIMER1, S3C44B0_INT_TIMER2, S3C44B0_INT_TIMER3, S3C44B0_INT_TIMER4, S3C44B0_INT_TIMER5 }; + verboselog( machine, 2, "PWM %d timer callback\n", ch); + if (BITS( s3c44b0->pwm.regs.tcfg1, 27, 24) == (ch + 1)) + { + fatalerror( "s3c44b0_dma_request_pwm( device);"); + } + else + { + s3c44b0_request_irq( device, ch_int[ch]); + } +} + +/* IIC */ + +INLINE void iface_i2c_scl_w( device_t *device, int state) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if (s3c44b0->iface->i2c.scl_w) + { + (s3c44b0->iface->i2c.scl_w)( device, state); + } +} + +INLINE void iface_i2c_sda_w( device_t *device, int state) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if (s3c44b0->iface->i2c.sda_w) + { + (s3c44b0->iface->i2c.sda_w)( device, state); + } +} + +INLINE int iface_i2c_sda_r( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if (s3c44b0->iface->i2c.sda_r) + { + return (s3c44b0->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) +{ + s3c44b0_t *s3c44b0 = get_token( device); + int mode_selection; + verboselog( device->machine(), 1, "IIC start\n"); + i2c_send_start( device); + mode_selection = BITS( s3c44b0->iic.regs.iicstat, 7, 6); + switch (mode_selection) + { + case 2 : i2c_send_byte( device, s3c44b0->iic.regs.iicds | 0x01); break; + case 3 : i2c_send_byte( device, s3c44b0->iic.regs.iicds & 0xFE); break; + } + s3c44b0->iic.timer->adjust( attotime::from_usec( 1), 0); +} + +static void iic_stop( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 1, "IIC stop\n"); + i2c_send_stop( device); + s3c44b0->iic.timer->adjust( attotime::never, 0); +} + +static void iic_resume( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + int mode_selection; + verboselog( device->machine(), 1, "IIC resume\n"); + mode_selection = BITS( s3c44b0->iic.regs.iicstat, 7, 6); + switch (mode_selection) + { + case 2 : s3c44b0->iic.regs.iicds = i2c_receive_byte( device, BIT( s3c44b0->iic.regs.iiccon, 7)); break; + case 3 : i2c_send_byte( device, s3c44b0->iic.regs.iicds & 0xFF); break; + } + s3c44b0->iic.timer->adjust( attotime::from_usec( 1), 0); +} + +static READ32_DEVICE_HANDLER( s3c44b0_iic_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->iic.regs)[offset]; + switch (offset) + { + case S3C44B0_IICSTAT : + { + data = data & ~0x0000000F; + } + break; + } + verboselog( device->machine(), 9, "(IIC) %08X -> %08X\n", S3C44B0_BASE_IIC + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_iic_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->iic.regs)[offset]; + verboselog( device->machine(), 9, "(IIC) %08X <- %08X\n", S3C44B0_BASE_IIC + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->iic.regs)[offset]); + switch (offset) + { + case S3C44B0_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( s3c44b0->iic.regs.iicstat, 5); + if (start_stop_condition != 0) + { + if (s3c44b0->iic.count == 0) + { + iic_start( device); + + } + else + { + iic_resume( device); + } + } + else + { + iic_stop( device); + } + } + } + } + break; + case S3C44B0_IICSTAT : + { + int interrupt_pending_flag; + s3c44b0->iic.count = 0; + interrupt_pending_flag = BIT( s3c44b0->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 (s3c44b0->iic.count == 0) + { + iic_start( device); + + } + else + { + iic_resume( device); + } + } + else + { + iic_stop( device); + } + } + } + break; + } +} + +static TIMER_CALLBACK( s3c44b0_iic_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + int enable_interrupt; + verboselog( machine, 2, "IIC timer callback\n"); + s3c44b0->iic.count++; + enable_interrupt = BIT( s3c44b0->iic.regs.iiccon, 5); + + s3c44b0->iic.regs.iicds = 0xFF; // TEST + + if (enable_interrupt) + { + s3c44b0->iic.regs.iiccon |= (1 << 4); // [bit 4] interrupt is pending + s3c44b0_request_irq( device, S3C44B0_INT_IIC); + } +} + +/* I/O Port */ + +INLINE UINT32 iface_gpio_port_r( device_t *device, int port) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if (s3c44b0->iface->gpio.port_r) + { + return (s3c44b0->iface->gpio.port_r)( device, port); + } + else + { + return 0; + } +} + +INLINE void iface_gpio_port_w( device_t *device, int port, UINT32 data) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if (s3c44b0->iface->gpio.port_w) + { + (s3c44b0->iface->gpio.port_w)( device, port, data); + } +} + +static READ32_DEVICE_HANDLER( s3c44b0_gpio_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->gpio.regs)[offset]; + switch (offset) + { + case S3C44B0_GPADAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_A) & S3C44B0_GPADAT_MASK; + } + break; + case S3C44B0_GPBDAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_B) & S3C44B0_GPBDAT_MASK; + } + break; + case S3C44B0_GPCDAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_C) & S3C44B0_GPCDAT_MASK; + } + break; + case S3C44B0_GPDDAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_D) & S3C44B0_GPDDAT_MASK; + } + break; + case S3C44B0_GPEDAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_E) & S3C44B0_GPEDAT_MASK; + } + break; + case S3C44B0_GPFDAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_F) & S3C44B0_GPFDAT_MASK; + } + break; + case S3C44B0_GPGDAT : + { + data = iface_gpio_port_r( device, S3C44B0_GPIO_PORT_G) & S3C44B0_GPGDAT_MASK; + } + break; + } + verboselog( device->machine(), 9, "(GPIO) %08X -> %08X\n", S3C44B0_BASE_GPIO + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_gpio_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->gpio.regs)[offset]; + verboselog( device->machine(), 9, "(GPIO) %08X <- %08X\n", S3C44B0_BASE_GPIO + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->gpio.regs)[offset]); + switch (offset) + { + case S3C44B0_GPADAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_A, data & S3C44B0_GPADAT_MASK); + } + break; + case S3C44B0_GPBDAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_B, data & S3C44B0_GPBDAT_MASK); + } + break; + case S3C44B0_GPCDAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_C, data & S3C44B0_GPCDAT_MASK); + } + break; + case S3C44B0_GPDDAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_D, data & S3C44B0_GPDDAT_MASK); + } + break; + case S3C44B0_GPEDAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_E, data & S3C44B0_GPEDAT_MASK); + } + break; + case S3C44B0_GPFDAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_F, data & S3C44B0_GPFDAT_MASK); + } + break; + case S3C44B0_GPGDAT : + { + iface_gpio_port_w( device, S3C44B0_GPIO_PORT_G, data & S3C44B0_GPGDAT_MASK); + } + break; + case S3C44B0_EXTINTPND : + { + s3c44b0->gpio.regs.extintpnd = (old_value & ~data); + s3c44b0_check_pending_eint( device); + } + break; + } +} + +/* UART */ + +static UINT32 s3c44b0_uart_r( device_t *device, int ch, UINT32 offset) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->uart[ch].regs)[offset]; + switch (offset) + { + case S3C44B0_UTRSTAT : + { + data = (data & ~0x00000006) | 0x00000004 | 0x00000002; // [bit 2] Transmitter empty / [bit 1] Transmit buffer empty + } + break; + case S3C44B0_URXH : + { + UINT8 rxdata = data & 0xFF; + verboselog( device->machine(), 5, "UART %d read %02X (%c)\n", ch, rxdata, ((rxdata >= 32) && (rxdata < 128)) ? (char)rxdata : '?'); + s3c44b0->uart[ch].regs.utrstat &= ~1; // [bit 0] Receive buffer data ready + } + break; + } + return data; +} + +static void s3c44b0_uart_w( device_t *device, int ch, UINT32 offset, UINT32 data, UINT32 mem_mask) +{ + s3c44b0_t *s3c44b0 = get_token( device); + COMBINE_DATA(&((UINT32*)&s3c44b0->uart[ch].regs)[offset]); + s3c44b0_uart_t *uart = &s3c44b0->uart[ch]; + switch (offset) + { + case S3C44B0_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; + case S3C44B0_UBRDIV : + { + UINT32 mclk, hz; + mclk = s3c44b0_get_mclk( device); + hz = (mclk / (uart->regs.ubrdiv + 1)) / 16; + verboselog( device->machine(), 5, "UART %d - mclk %08X hz %08X\n", ch, mclk, hz); + uart->timer->adjust( attotime::from_hz( hz), ch, attotime::from_hz( hz)); + } + break; + } +} + +static READ32_DEVICE_HANDLER( s3c44b0_uart_0_r ) +{ + UINT32 data = s3c44b0_uart_r( device, 0, offset); +// verboselog( device->machine(), 9, "(UART 0) %08X -> %08X\n", S3C44B0_BASE_UART_0 + (offset << 2), data); + return data; +} + +static READ32_DEVICE_HANDLER( s3c44b0_uart_1_r ) +{ + UINT32 data = s3c44b0_uart_r( device, 1, offset); +// verboselog( device->machine(), 9, "(UART 1) %08X -> %08X\n", S3C44B0_BASE_UART_1 + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_uart_0_w ) +{ + verboselog( device->machine(), 9, "(UART 0) %08X <- %08X (%08X)\n", S3C44B0_BASE_UART_0 + (offset << 2), data, mem_mask); + s3c44b0_uart_w( device, 0, offset, data, mem_mask); +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_uart_1_w ) +{ + verboselog( device->machine(), 9, "(UART 1) %08X <- %08X (%08X)\n", S3C44B0_BASE_UART_1 + (offset << 2), data, mem_mask); + s3c44b0_uart_w( device, 1, offset, data, mem_mask); +} + +void s3c44b0_uart_fifo_w( device_t *device, int uart, UINT8 data) +{ +// printf( "s3c44b0_uart_fifo_w (%c)\n", data); + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0->uart[uart].regs.urxh = data; + s3c44b0->uart[uart].regs.utrstat |= 1; // [bit 0] Receive buffer data ready +} + +static TIMER_CALLBACK( s3c44b0_uart_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + int ch = param; + s3c44b0_uart_t *uart = &s3c44b0->uart[ch]; + verboselog( machine, 2, "UART %d timer callback\n", ch); + if ((uart->regs.ucon & (1 << 9)) != 0) + { + const int ch_int[] = { S3C44B0_INT_UTXD0, S3C44B0_INT_UTXD1 }; + s3c44b0_request_irq( device, ch_int[ch]); + } +} + +/* Watchdog Timer */ + +static UINT16 s3c44b0_wdt_calc_current_count( device_t *device) +{ + return 0; +} + +static READ32_DEVICE_HANDLER( s3c44b0_wdt_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->wdt.regs)[offset]; + switch (offset) + { + case S3C44B0_WTCNT : + { + // is wdt active? + if ((s3c44b0->wdt.regs.wtcon & (1 << 5)) != 0) + { + data = s3c44b0_wdt_calc_current_count( device); + } + } + break; + } + verboselog( device->machine(), 9, "(WDT) %08X -> %08X\n", S3C44B0_BASE_WDT + (offset << 2), data); + return data; +} + +static void s3c44b0_wdt_start( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 mclk, prescaler, clock; + double freq, hz; + verboselog( device->machine(), 1, "WDT start\n"); + mclk = s3c44b0_get_mclk( device); + prescaler = BITS( s3c44b0->wdt.regs.wtcon, 15, 8); + clock = 16 << BITS( s3c44b0->wdt.regs.wtcon, 4, 3); + freq = (double)mclk / (prescaler + 1) / clock; + hz = freq / s3c44b0->wdt.regs.wtcnt; + verboselog( device->machine(), 5, "WDT mclk %d prescaler %d clock %d freq %f hz %f\n", mclk, prescaler, clock, freq, hz); + s3c44b0->wdt.timer->adjust( attotime::from_hz( hz), 0, attotime::from_hz( hz)); +} + +static void s3c44b0_wdt_stop( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 1, "WDT stop\n"); + s3c44b0->wdt.regs.wtcnt = s3c44b0_wdt_calc_current_count( device); + s3c44b0->wdt.timer->adjust( attotime::never, 0); +} + +static void s3c44b0_wdt_recalc( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if ((s3c44b0->wdt.regs.wtcon & (1 << 5)) != 0) + { + s3c44b0_wdt_start( device); + } + else + { + s3c44b0_wdt_stop( device); + } +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_wdt_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->wdt.regs)[offset]; + verboselog( device->machine(), 9, "(WDT) %08X <- %08X\n", S3C44B0_BASE_WDT + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->wdt.regs)[offset]); + switch (offset) + { + case S3C44B0_WTCON : + { + if ((data & (1 << 5)) != (old_value & (1 << 5))) + { + s3c44b0_wdt_recalc( device); + } + } + break; + } +} + +static TIMER_CALLBACK( s3c44b0_wdt_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( machine, 2, "WDT timer callback\n"); + if ((s3c44b0->wdt.regs.wtcon & (1 << 2)) != 0) + { + s3c44b0_request_irq( device, S3C44B0_INT_WDT); + } + if ((s3c44b0->wdt.regs.wtcon & (1 << 0)) != 0) + { + s3c44b0_reset( device); + } +} + +/* CPU Wrapper */ + +static READ32_DEVICE_HANDLER( s3c44b0_cpuwrap_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->cpuwrap.regs)[offset]; + verboselog( device->machine(), 9, "(CPUWRAP) %08X -> %08X\n", S3C44B0_BASE_CPU_WRAPPER + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_cpuwrap_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 9, "(CPUWRAP) %08X <- %08X\n", S3C44B0_BASE_CPU_WRAPPER + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->cpuwrap.regs)[offset]); +} + +/* A/D Converter */ + +static READ32_DEVICE_HANDLER( s3c44b0_adc_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->adc.regs)[offset]; + verboselog( device->machine(), 9, "(ADC) %08X -> %08X\n", S3C44B0_BASE_ADC + (offset << 2), data); + return data; +} + +static void s3c44b0_adc_start( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 mclk, prescaler; + double freq, hz; + verboselog( device->machine(), 1, "ADC start\n"); + mclk = s3c44b0_get_mclk( device); + prescaler = BITS( s3c44b0->adc.regs.adcpsr, 7, 0); + freq = (double)mclk / (2 * (prescaler + 1)) / 16; + hz = freq / 1; //s3c44b0->wdt.regs.wtcnt; + verboselog( device->machine(), 5, "ADC mclk %d prescaler %d freq %f hz %f\n", mclk, prescaler, freq, hz); + s3c44b0->adc.timer->adjust( attotime::from_hz( hz), 0); +} + +static void s3c44b0_adc_stop( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 1, "ADC stop\n"); + s3c44b0->adc.timer->adjust( attotime::never, 0); +} + +static void s3c44b0_adc_recalc( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if ((s3c44b0->adc.regs.adccon & (1 << 0)) != 0) + { + s3c44b0_adc_start( device); + } + else + { + s3c44b0_adc_stop( device); + } +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_adc_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->wdt.regs)[offset]; + verboselog( device->machine(), 9, "(ADC) %08X <- %08X\n", S3C44B0_BASE_ADC + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->adc.regs)[offset]); + switch (offset) + { + case S3C44B0_ADCCON : + { + if ((data & (1 << 0)) != (old_value & (1 << 0))) + { + s3c44b0_adc_recalc( device); + } + s3c44b0->adc.regs.adccon &= ~(1 << 0); // "this bit is cleared after the start-up" + } + break; + } +} + +static TIMER_CALLBACK( s3c44b0_adc_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( machine, 2, "ADC timer callback\n"); + s3c44b0->adc.regs.adccon |= (1 << 6); + s3c44b0_request_irq( device, S3C44B0_INT_ADC); +} + +/* SIO */ + +static READ32_DEVICE_HANDLER( s3c44b0_sio_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->sio.regs)[offset]; + verboselog( device->machine(), 9, "(SIO) %08X -> %08X\n", S3C44B0_BASE_SIO + (offset << 2), data); + return data; +} + +static void s3c44b0_sio_start( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 mclk, prescaler; + double freq, hz; + verboselog( device->machine(), 1, "SIO start\n"); + mclk = s3c44b0_get_mclk( device); + prescaler = BITS( s3c44b0->sio.regs.sbrdr, 11, 0); + freq = (double)mclk / 2 / (prescaler + 1); + hz = freq / 1; //s3c44b0->wdt.regs.wtcnt; + verboselog( device->machine(), 5, "SIO mclk %d prescaler %d freq %f hz %f\n", mclk, prescaler, freq, hz); + s3c44b0->sio.timer->adjust( attotime::from_hz( hz), 0); +// printf( "SIO transmit %02X (%c)\n", s3c44b0->sio.regs.siodat, ((s3c44b0->sio.regs.siodat >= 32) && (s3c44b0->sio.regs.siodat < 128)) ? (char)s3c44b0->sio.regs.siodat : '?'); +} + +static void s3c44b0_sio_stop( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 1, "SIO stop\n"); +// s3c44b0->wdt.regs.wtcnt = s3c44b0_wdt_calc_current_count( device); + s3c44b0->sio.timer->adjust( attotime::never, 0); +} + +static void s3c44b0_sio_recalc( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if ((s3c44b0->sio.regs.siocon & (1 << 3)) != 0) + { + s3c44b0_sio_start( device); + } + else + { + s3c44b0_sio_stop( device); + } +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_sio_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->sio.regs)[offset]; + verboselog( device->machine(), 9, "(SIO) %08X <- %08X\n", S3C44B0_BASE_SIO + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->sio.regs)[offset]); + switch (offset) + { + case S3C44B0_SIOCON : + { + if ((old_value & (1 << 3)) != (data & (1 << 3))) + { + s3c44b0_sio_recalc( device); + } + s3c44b0->sio.regs.siocon &= ~(1 << 3); // "This bit is cleared just after writing this bit as 1." + } + break; + } +} + +static TIMER_CALLBACK( s3c44b0_sio_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( machine, 2, "SIO timer callback\n"); + + s3c44b0->sio.regs.siodat = 0x00; // TEST + + if ((s3c44b0->sio.regs.siocon & (1 << 0)) != 0) + { + s3c44b0_request_irq( device, S3C44B0_INT_SIO); + } +} + +/* IIS */ + +INLINE void iface_i2s_data_w( device_t *device, int ch, UINT16 data) +{ + s3c44b0_t *s3c44b0 = get_token( device); + if (s3c44b0->iface->i2s.data_w) + { + (s3c44b0->iface->i2s.data_w)( device, ch, data, 0); + } +} + +static void s3c44b0_iis_start( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 mclk; + int prescaler; + double freq, hz; + const int div[] = { 2, 4, 6, 8, 10, 12, 14, 16, 1, 0, 3, 0, 5, 0, 7, 0 }; + verboselog( device->machine(), 1, "IIS start\n"); + mclk = s3c44b0_get_mclk( device); + prescaler = BITS( s3c44b0->iis.regs.iispsr, 3, 0); + freq = (double)mclk / div[prescaler]; + hz = freq / 256 * 2; + verboselog( device->machine(), 5, "IIS mclk %d prescaler %d freq %f hz %f\n", mclk, prescaler, freq, hz); + s3c44b0->iis.timer->adjust( attotime::from_hz( hz), 0, attotime::from_hz( hz)); +} + +static void s3c44b0_iis_stop( device_t *device) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 1, "IIS stop\n"); + s3c44b0->iis.timer->adjust( attotime::never, 0); +} + +static READ32_DEVICE_HANDLER( s3c44b0_iis_r ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->iis.regs)[offset]; + verboselog( device->machine(), 9, "(IIS) %08X -> %08X\n", S3C44B0_BASE_IIS + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_iis_w ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->iis.regs)[offset]; + verboselog( device->machine(), 9, "(IIS) %08X <- %08X\n", S3C44B0_BASE_IIS + (offset << 2), data); + COMBINE_DATA(&((UINT32*)&s3c44b0->iis.regs)[offset]); + switch (offset) + { + case S3C44B0_IISCON : + { + if ((old_value & (1 << 0)) != (data & (1 << 0))) + { + if ((data & (1 << 0)) != 0) + { + s3c44b0_iis_start( device); + } + else + { + s3c44b0_iis_stop( device); + } + } + } + break; + case S3C44B0_IISFIFO : + { + if (ACCESSING_BITS_16_31) + { + s3c44b0->iis.fifo[s3c44b0->iis.fifo_index++] = BITS( data, 31, 16); + } + if (ACCESSING_BITS_0_15) + { + s3c44b0->iis.fifo[s3c44b0->iis.fifo_index++] = BITS( data, 15, 0); + } + if (s3c44b0->iis.fifo_index == 2) + { + s3c44b0->iis.fifo_index = 0; + iface_i2s_data_w( device, 0, s3c44b0->iis.fifo[0]); + iface_i2s_data_w( device, 1, s3c44b0->iis.fifo[1]); + } + } + break; + } +} + +static TIMER_CALLBACK( s3c44b0_iis_timer_exp ) +{ + device_t *device = (device_t *)ptr; + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0_iis_t *iis = &s3c44b0->iis; + verboselog( machine, 2, "IIS timer callback\n"); + if ((iis->regs.iiscon & (1 << 5)) != 0) + { + s3c44b0_bdma_request_iis( device); + } +} + +/* ZDMA */ + +static void s3c44b0_zdma_trigger( device_t *device, int ch) +{ + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0_dma_t *dma = &s3c44b0->zdma[ch]; + UINT32 saddr, daddr; + int dal, dst, opt, das, cnt; + verboselog( device->machine(), 5, "s3c44b0_zdma_trigger %d\n", ch); + dst = BITS( dma->regs.dcsrc, 31, 30); + dal = BITS( dma->regs.dcsrc, 29, 28); + saddr = BITS( dma->regs.dcsrc, 27, 0); + verboselog( device->machine(), 5, "dst %d dal %d saddr %08X\n", dst, dal, saddr); + opt = BITS( dma->regs.dcdst, 31, 30); + das = BITS( dma->regs.dcdst, 29, 28); + daddr = BITS( dma->regs.dcdst, 27, 0); + verboselog( device->machine(), 5, "opt %d das %d daddr %08X\n", opt, das, daddr); + cnt = BITS( dma->regs.dccnt, 19, 0); + verboselog( device->machine(), 5, "icnt %08X\n", cnt); + while (cnt > 0) + { + verboselog( device->machine(), 9, "[%08X] -> [%08X]\n", saddr, daddr); + switch (dst) + { + case 0 : s3c44b0->space->write_byte( daddr, s3c44b0->space->read_byte( saddr)); break; + case 1 : s3c44b0->space->write_word( daddr, s3c44b0->space->read_word( saddr)); break; + case 2 : s3c44b0->space->write_dword( daddr, s3c44b0->space->read_dword( saddr)); break; + } + switch (dal) + { + case 1 : saddr += (1 << dst); break; + case 2 : saddr -= (1 << dst); break; + } + switch (das) + { + case 1 : daddr += (1 << dst); break; + case 2 : daddr -= (1 << dst); break; + } + cnt -= (1 << dst); + } + dma->regs.dcsrc = CLR_BITS( dma->regs.dcsrc, 27, 0) | saddr; + dma->regs.dcdst = CLR_BITS( dma->regs.dcdst, 27, 0) | daddr; + dma->regs.dccnt = CLR_BITS( dma->regs.dcdst, 19, 0) | cnt; + if (cnt == 0) + { + if ((dma->regs.dccnt & (1 << 23)) != 0) + { + const int ch_int[] = { S3C44B0_INT_ZDMA0, S3C44B0_INT_ZDMA1 }; + s3c44b0_request_irq( device, ch_int[ch]); + } + } +} + +static void s3c44b0_zdma_start( device_t *device, int ch) +{ + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0_dma_t *dma = &s3c44b0->zdma[ch]; + verboselog( device->machine(), 5, "ZDMA %d start\n", ch); + dma->regs.dcsrc = dma->regs.disrc; + dma->regs.dcdst = dma->regs.didst; + dma->regs.dccnt = dma->regs.dicnt; + s3c44b0_zdma_trigger( device, ch); +} + +static UINT32 s3c44b0_zdma_r( device_t *device, int ch, UINT32 offset) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->zdma[ch].regs)[offset]; + return data; +} + +static void s3c44b0_zdma_w( device_t *device, int ch, UINT32 offset, UINT32 data, UINT32 mem_mask) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->zdma[ch].regs)[offset]; + COMBINE_DATA(&((UINT32*)&s3c44b0->zdma[ch].regs)[offset]); + switch (offset) + { + case S3C44B0_DCON : + { + if ((old_value & 3) != (data & 3)) + { + switch (data & 3) + { + case 1 : s3c44b0_zdma_start( device, ch); break; + } + } + s3c44b0->zdma[ch].regs.dcon &= ~3; // "After writing 01,10,11, CMD bit is cleared automatically" + } + break; + } +} + +static READ32_DEVICE_HANDLER( s3c44b0_zdma_0_r ) +{ + UINT32 data = s3c44b0_zdma_r( device, 0, offset); + verboselog( device->machine(), 9, "(ZDMA 0) %08X -> %08X\n", S3C44B0_BASE_ZDMA_0 + (offset << 2), data); + return data; +} + +static READ32_DEVICE_HANDLER( s3c44b0_zdma_1_r ) +{ + UINT32 data = s3c44b0_zdma_r( device, 1, offset); + verboselog( device->machine(), 9, "(ZDMA 1) %08X -> %08X\n", S3C44B0_BASE_ZDMA_1 + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_zdma_0_w ) +{ + verboselog( device->machine(), 9, "(ZDMA 0) %08X <- %08X (%08X)\n", S3C44B0_BASE_ZDMA_0 + (offset << 2), data, mem_mask); + s3c44b0_zdma_w( device, 0, offset, data, mem_mask); +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_zdma_1_w ) +{ + verboselog( device->machine(), 9, "(ZDMA 1) %08X <- %08X (%08X)\n", S3C44B0_BASE_ZDMA_1 + (offset << 2), data, mem_mask); + s3c44b0_zdma_w( device, 1, offset, data, mem_mask); +} + +static TIMER_CALLBACK( s3c44b0_zdma_timer_exp ) +{ + int ch = param; + verboselog( machine, 2, "ZDMA %d timer callback\n", ch); +} + +/* BDMA */ + +static void s3c44b0_bdma_trigger( device_t *device, int ch) +{ + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0_dma_t *dma = &s3c44b0->bdma[ch]; + UINT32 saddr, daddr; + int dal, dst, tdm, das, cnt; + verboselog( device->machine(), 5, "s3c44b0_bdma_trigger %d\n", ch); + dst = BITS( dma->regs.dcsrc, 31, 30); + dal = BITS( dma->regs.dcsrc, 29, 28); + saddr = BITS( dma->regs.dcsrc, 27, 0); + verboselog( device->machine(), 5, "dst %d dal %d saddr %08X\n", dst, dal, saddr); + tdm = BITS( dma->regs.dcdst, 31, 30); + das = BITS( dma->regs.dcdst, 29, 28); + daddr = BITS( dma->regs.dcdst, 27, 0); + verboselog( device->machine(), 5, "tdm %d das %d daddr %08X\n", tdm, das, daddr); + cnt = BITS( dma->regs.dccnt, 19, 0); + verboselog( device->machine(), 5, "icnt %08X\n", cnt); + verboselog( device->machine(), 9, "[%08X] -> [%08X]\n", saddr, daddr); + switch (dst) + { + case 0 : s3c44b0->space->write_byte( daddr, s3c44b0->space->read_byte( saddr)); break; + case 1 : s3c44b0->space->write_word( daddr, s3c44b0->space->read_word( saddr)); break; + case 2 : s3c44b0->space->write_dword( daddr, s3c44b0->space->read_dword( saddr)); break; + } + switch (dal) + { + case 1 : saddr += (1 << dst); break; + case 2 : saddr -= (1 << dst); break; + } + switch (das) + { + case 1 : daddr += (1 << dst); break; + case 2 : daddr -= (1 << dst); break; + } + cnt -= (1 << dst); + dma->regs.dcsrc = CLR_BITS( dma->regs.dcsrc, 27, 0) | saddr; + dma->regs.dcdst = CLR_BITS( dma->regs.dcdst, 27, 0) | daddr; + dma->regs.dccnt = CLR_BITS( dma->regs.dcdst, 19, 0) | cnt; + if (cnt == 0) + { + if ((dma->regs.dccnt & (1 << 23)) != 0) + { + const int ch_int[] = { S3C44B0_INT_BDMA0, S3C44B0_INT_BDMA1 }; + s3c44b0_request_irq( device, ch_int[ch]); + } + } +} + +static void s3c44b0_bdma_request_iis( device_t *device) +{ +// s3c44b0_t *s3c44b0 = get_token( device); +// s3c44b0_dma_regs_t *regs = &s3c24xx->bdma[0].regs; + verboselog( device->machine(), 5, "s3c44b0_bdma_request_iis\n"); + s3c44b0_bdma_trigger( device, 0); +} + +static UINT32 s3c44b0_bdma_r( device_t *device, int ch, UINT32 offset) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 data = ((UINT32*)&s3c44b0->bdma[ch].regs)[offset]; + return data; +} + +static void s3c44b0_bdma_start( device_t *device, int ch) +{ + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0_dma_t *dma = &s3c44b0->bdma[ch]; + int qsc; + verboselog( device->machine(), 5, "BDMA %d start\n", ch); + qsc = BITS( dma->regs.dicnt, 31, 30); + if ((ch == 0) && (qsc == 1)) + { + // IIS + } + else + { + printf( "s3c44b0_bdma_start - todo\n"); + } + dma->regs.dcsrc = dma->regs.disrc; + dma->regs.dcdst = dma->regs.didst; + dma->regs.dccnt = dma->regs.dicnt; +} + +static void s3c44b0_bdma_stop( device_t *device, int ch) +{ + s3c44b0_t *s3c44b0 = get_token( device); + verboselog( device->machine(), 5, "BDMA %d stop\n", ch); + s3c44b0->bdma[ch].timer->adjust( attotime::never, ch); +} + +static void s3c44b0_bdma_w( device_t *device, int ch, UINT32 offset, UINT32 data, UINT32 mem_mask) +{ + s3c44b0_t *s3c44b0 = get_token( device); + UINT32 old_value = ((UINT32*)&s3c44b0->bdma[ch].regs)[offset]; + COMBINE_DATA(&((UINT32*)&s3c44b0->bdma[ch].regs)[offset]); + switch (offset) + { + case S3C44B0_DICNT : + { + if ((old_value & (1 << 20)) != (data & (1 << 20))) + { + if ((data & (1 << 20)) != 0) + { + s3c44b0_bdma_start( device, ch); + } + else + { + s3c44b0_bdma_stop( device, ch); + } + } + } + break; + } +} + +static READ32_DEVICE_HANDLER( s3c44b0_bdma_0_r ) +{ + UINT32 data = s3c44b0_bdma_r( device, 0, offset); + verboselog( device->machine(), 9, "(BDMA 0) %08X -> %08X\n", S3C44B0_BASE_BDMA_0 + (offset << 2), data); + return data; +} + +static READ32_DEVICE_HANDLER( s3c44b0_bdma_1_r ) +{ + UINT32 data = s3c44b0_bdma_r( device, 1, offset); + verboselog( device->machine(), 9, "(BDMA 1) %08X -> %08X\n", S3C44B0_BASE_BDMA_1 + (offset << 2), data); + return data; +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_bdma_0_w ) +{ + verboselog( device->machine(), 9, "(BDMA 0) %08X <- %08X (%08X)\n", S3C44B0_BASE_BDMA_0 + (offset << 2), data, mem_mask); + s3c44b0_bdma_w( device, 0, offset, data, mem_mask); +} + +static WRITE32_DEVICE_HANDLER( s3c44b0_bdma_1_w ) +{ + verboselog( device->machine(), 9, "(BDMA 1) %08X <- %08X (%08X)\n", S3C44B0_BASE_BDMA_1 + (offset << 2), data, mem_mask); + s3c44b0_bdma_w( device, 1, offset, data, mem_mask); +} + +static TIMER_CALLBACK( s3c44b0_bdma_timer_exp ) +{ +// device_t *device = (device_t *)ptr; +// s3c44b0_t *s3c44b0 = get_token( device); + int ch = param; + verboselog( machine, 2, "BDMA %d timer callback\n", ch); +} + +// ... + +static DEVICE_RESET( s3c44b0 ) +{ + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0->iis.fifo_index = 0; +// s3c44b0->iic.data_index = 0; +#if defined(DEVICE_S3C2410) || defined(DEVICE_S3C2440) + s3c44b0->gpio.regs.gstatus2 = 0x00000001; // Boot is caused by power on reset +#endif + s3c44b0->irq.line_irq = s3c44b0->irq.line_fiq = CLEAR_LINE; +} + +VIDEO_START( s3c44b0 ) +{ + device_t *device = machine.device( S3C44B0_TAG); + s3c44b0_video_start( device, machine); +} + +SCREEN_UPDATE_RGB32( s3c44b0 ) +{ + device_t *device = screen.machine().device( S3C44B0_TAG); + return s3c44b0_video_update( device, screen, bitmap, cliprect); +} + +DEVICE_START( s3c44b0 ) +{ + running_machine &machine = device->machine(); + address_space *space = machine.device( "maincpu")->memory().space( AS_PROGRAM); + s3c44b0_t *s3c44b0 = get_token( device); + s3c44b0->iface = (const s3c44b0_interface *)device->static_config(); + s3c44b0->space = space; + s3c44b0->cpu = downcast<cpu_device *>(device->machine().device( "maincpu")); + for (int i = 0; i < 6; i++) s3c44b0->pwm.timer[i] = machine.scheduler().timer_alloc(FUNC(s3c44b0_pwm_timer_exp), (void*)device); + for (int i = 0; i < 2; i++) s3c44b0->uart[i].timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_uart_timer_exp), (void*)device); + for (int i = 0; i < 2; i++) s3c44b0->zdma[i].timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_zdma_timer_exp), (void*)device); + for (int i = 0; i < 2; i++) s3c44b0->bdma[i].timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_bdma_timer_exp), (void*)device); + s3c44b0->lcd.timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_lcd_timer_exp), (void*)device); + s3c44b0->wdt.timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_wdt_timer_exp), (void*)device); + s3c44b0->sio.timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_sio_timer_exp), (void*)device); + s3c44b0->adc.timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_adc_timer_exp), (void*)device); + s3c44b0->iic.timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_iic_timer_exp), (void*)device); + s3c44b0->iis.timer = machine.scheduler().timer_alloc(FUNC(s3c44b0_iis_timer_exp), (void*)device); + space->install_legacy_readwrite_handler( *device, 0x01c00000, 0x01c0000b, 0, 0, FUNC(s3c44b0_cpuwrap_r), FUNC(s3c44b0_cpuwrap_w)); + space->install_legacy_readwrite_handler( *device, 0x01d00000, 0x01d0002b, 0, 0, FUNC(s3c44b0_uart_0_r), FUNC(s3c44b0_uart_0_w)); + space->install_legacy_readwrite_handler( *device, 0x01d04000, 0x01d0402b, 0, 0, FUNC(s3c44b0_uart_1_r), FUNC(s3c44b0_uart_1_w)); + space->install_legacy_readwrite_handler( *device, 0x01d14000, 0x01d14013, 0, 0, FUNC(s3c44b0_sio_r), FUNC(s3c44b0_sio_w)); + space->install_legacy_readwrite_handler( *device, 0x01d18000, 0x01d18013, 0, 0, FUNC(s3c44b0_iis_r), FUNC(s3c44b0_iis_w)); + space->install_legacy_readwrite_handler( *device, 0x01d20000, 0x01d20057, 0, 0, FUNC(s3c44b0_gpio_r), FUNC(s3c44b0_gpio_w)); + space->install_legacy_readwrite_handler( *device, 0x01d30000, 0x01d3000b, 0, 0, FUNC(s3c44b0_wdt_r), FUNC(s3c44b0_wdt_w)); + space->install_legacy_readwrite_handler( *device, 0x01d40000, 0x01d4000b, 0, 0, FUNC(s3c44b0_adc_r), FUNC(s3c44b0_adc_w)); + space->install_legacy_readwrite_handler( *device, 0x01d50000, 0x01d5004f, 0, 0, FUNC(s3c44b0_pwm_r), FUNC(s3c44b0_pwm_w)); + space->install_legacy_readwrite_handler( *device, 0x01d60000, 0x01d6000f, 0, 0, FUNC(s3c44b0_iic_r), FUNC(s3c44b0_iic_w)); + space->install_legacy_readwrite_handler( *device, 0x01d80000, 0x01d8000f, 0, 0, FUNC(s3c44b0_clkpow_r), FUNC(s3c44b0_clkpow_w)); + space->install_legacy_readwrite_handler( *device, 0x01e00000, 0x01e0003f, 0, 0, FUNC(s3c44b0_irq_r), FUNC(s3c44b0_irq_w)); + space->install_legacy_readwrite_handler( *device, 0x01e80000, 0x01e8001b, 0, 0, FUNC(s3c44b0_zdma_0_r), FUNC(s3c44b0_zdma_0_w)); + space->install_legacy_readwrite_handler( *device, 0x01e80020, 0x01e8003b, 0, 0, FUNC(s3c44b0_zdma_1_r), FUNC(s3c44b0_zdma_1_w)); + space->install_legacy_readwrite_handler( *device, 0x01f00000, 0x01f00047, 0, 0, FUNC(s3c44b0_lcd_r), FUNC(s3c44b0_lcd_w)); + space->install_legacy_readwrite_handler( *device, 0x01f80000, 0x01f8001b, 0, 0, FUNC(s3c44b0_bdma_0_r), FUNC(s3c44b0_bdma_0_w)); + space->install_legacy_readwrite_handler( *device, 0x01f80020, 0x01f8003b, 0, 0, FUNC(s3c44b0_bdma_1_r), FUNC(s3c44b0_bdma_1_w)); +} + +DEVICE_GET_INFO( s3c44b0 ) +{ + switch ( state ) + { + /* --- the following bits of info are returned as 64-bit signed integers --- */ + case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(s3c44b0_t); break; + case DEVINFO_INT_INLINE_CONFIG_BYTES: info->i = 0; break; +// case DEVINFO_INT_CLASS: info->i = DEVICE_CLASS_PERIPHERAL; break; + /* --- the following bits of info are returned as pointers to data or functions --- */ + case DEVINFO_FCT_START: info->start = DEVICE_START_NAME(s3c44b0); break; + case DEVINFO_FCT_RESET: info->reset = DEVICE_RESET_NAME(s3c44b0); break; + /* --- the following bits of info are returned as NULL-terminated strings --- */ + case DEVINFO_STR_FAMILY: strcpy(info->s, "S3C44B0"); break; + case DEVINFO_STR_VERSION: strcpy(info->s, "1.00"); break; + case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break; + case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright the MESS Team"); break; + case DEVINFO_STR_NAME: strcpy(info->s, "Samsung S3C44B0"); break; + } +} + +DEFINE_LEGACY_DEVICE(S3C44B0, s3c44b0); |