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qemu-e2k/hw/display/blizzard.c

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/*
* Epson S1D13744/S1D13745 (Blizzard/Hailstorm/Tornado) LCD/TV controller.
*
* Copyright (C) 2008 Nokia Corporation
* Written by Andrzej Zaborowski <andrew@openedhand.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "ui/console.h"
#include "hw/display/blizzard.h"
#include "ui/pixel_ops.h"
typedef void (*blizzard_fn_t)(uint8_t *, const uint8_t *, unsigned int);
typedef struct {
uint8_t reg;
uint32_t addr;
int swallow;
int pll;
int pll_range;
int pll_ctrl;
uint8_t pll_mode;
uint8_t clksel;
int memenable;
int memrefresh;
uint8_t timing[3];
int priority;
uint8_t lcd_config;
int x;
int y;
int skipx;
int skipy;
uint8_t hndp;
uint8_t vndp;
uint8_t hsync;
uint8_t vsync;
uint8_t pclk;
uint8_t u;
uint8_t v;
uint8_t yrc[2];
int ix[2];
int iy[2];
int ox[2];
int oy[2];
int enable;
int blank;
int bpp;
int invalidate;
int mx[2];
int my[2];
uint8_t mode;
uint8_t effect;
uint8_t iformat;
uint8_t source;
QemuConsole *con;
blizzard_fn_t *line_fn_tab[2];
void *fb;
uint8_t hssi_config[3];
uint8_t tv_config;
uint8_t tv_timing[4];
uint8_t vbi;
uint8_t tv_x;
uint8_t tv_y;
uint8_t tv_test;
uint8_t tv_filter_config;
uint8_t tv_filter_idx;
uint8_t tv_filter_coeff[0x20];
uint8_t border_r;
uint8_t border_g;
uint8_t border_b;
uint8_t gamma_config;
uint8_t gamma_idx;
uint8_t gamma_lut[0x100];
uint8_t matrix_ena;
uint8_t matrix_coeff[0x12];
uint8_t matrix_r;
uint8_t matrix_g;
uint8_t matrix_b;
uint8_t pm;
uint8_t status;
uint8_t rgbgpio_dir;
uint8_t rgbgpio;
uint8_t gpio_dir;
uint8_t gpio;
uint8_t gpio_edge[2];
uint8_t gpio_irq;
uint8_t gpio_pdown;
struct {
int x;
int y;
int dx;
int dy;
int len;
int buflen;
void *buf;
void *data;
uint16_t *ptr;
int angle;
int pitch;
blizzard_fn_t line_fn;
} data;
} BlizzardState;
/* Bytes(!) per pixel */
static const int blizzard_iformat_bpp[0x10] = {
0,
2, /* RGB 5:6:5*/
3, /* RGB 6:6:6 mode 1 */
3, /* RGB 8:8:8 mode 1 */
0, 0,
4, /* RGB 6:6:6 mode 2 */
4, /* RGB 8:8:8 mode 2 */
0, /* YUV 4:2:2 */
0, /* YUV 4:2:0 */
0, 0, 0, 0, 0, 0,
};
static void blizzard_window(BlizzardState *s)
{
DisplaySurface *surface = qemu_console_surface(s->con);
uint8_t *src, *dst;
int bypp[2];
int bypl[3];
int y;
blizzard_fn_t fn = s->data.line_fn;
if (!fn)
return;
if (s->mx[0] > s->data.x)
s->mx[0] = s->data.x;
if (s->my[0] > s->data.y)
s->my[0] = s->data.y;
if (s->mx[1] < s->data.x + s->data.dx)
s->mx[1] = s->data.x + s->data.dx;
if (s->my[1] < s->data.y + s->data.dy)
s->my[1] = s->data.y + s->data.dy;
bypp[0] = s->bpp;
bypp[1] = surface_bytes_per_pixel(surface);
bypl[0] = bypp[0] * s->data.pitch;
bypl[1] = bypp[1] * s->x;
bypl[2] = bypp[0] * s->data.dx;
src = s->data.data;
dst = s->fb + bypl[1] * s->data.y + bypp[1] * s->data.x;
for (y = s->data.dy; y > 0; y --, src += bypl[0], dst += bypl[1])
fn(dst, src, bypl[2]);
}
static int blizzard_transfer_setup(BlizzardState *s)
{
if (s->source > 3 || !s->bpp ||
s->ix[1] < s->ix[0] || s->iy[1] < s->iy[0])
return 0;
s->data.angle = s->effect & 3;
s->data.line_fn = s->line_fn_tab[!!s->data.angle][s->iformat];
s->data.x = s->ix[0];
s->data.y = s->iy[0];
s->data.dx = s->ix[1] - s->ix[0] + 1;
s->data.dy = s->iy[1] - s->iy[0] + 1;
s->data.len = s->bpp * s->data.dx * s->data.dy;
s->data.pitch = s->data.dx;
if (s->data.len > s->data.buflen) {
s->data.buf = g_realloc(s->data.buf, s->data.len);
s->data.buflen = s->data.len;
}
s->data.ptr = s->data.buf;
s->data.data = s->data.buf;
s->data.len /= 2;
return 1;
}
static void blizzard_reset(BlizzardState *s)
{
s->reg = 0;
s->swallow = 0;
s->pll = 9;
s->pll_range = 1;
s->pll_ctrl = 0x14;
s->pll_mode = 0x32;
s->clksel = 0x00;
s->memenable = 0;
s->memrefresh = 0x25c;
s->timing[0] = 0x3f;
s->timing[1] = 0x13;
s->timing[2] = 0x21;
s->priority = 0;
s->lcd_config = 0x74;
s->x = 8;
s->y = 1;
s->skipx = 0;
s->skipy = 0;
s->hndp = 3;
s->vndp = 2;
s->hsync = 1;
s->vsync = 1;
s->pclk = 0x80;
s->ix[0] = 0;
s->ix[1] = 0;
s->iy[0] = 0;
s->iy[1] = 0;
s->ox[0] = 0;
s->ox[1] = 0;
s->oy[0] = 0;
s->oy[1] = 0;
s->yrc[0] = 0x00;
s->yrc[1] = 0x30;
s->u = 0;
s->v = 0;
s->iformat = 3;
s->source = 0;
s->bpp = blizzard_iformat_bpp[s->iformat];
s->hssi_config[0] = 0x00;
s->hssi_config[1] = 0x00;
s->hssi_config[2] = 0x01;
s->tv_config = 0x00;
s->tv_timing[0] = 0x00;
s->tv_timing[1] = 0x00;
s->tv_timing[2] = 0x00;
s->tv_timing[3] = 0x00;
s->vbi = 0x10;
s->tv_x = 0x14;
s->tv_y = 0x03;
s->tv_test = 0x00;
s->tv_filter_config = 0x80;
s->tv_filter_idx = 0x00;
s->border_r = 0x10;
s->border_g = 0x80;
s->border_b = 0x80;
s->gamma_config = 0x00;
s->gamma_idx = 0x00;
s->matrix_ena = 0x00;
memset(&s->matrix_coeff, 0, sizeof(s->matrix_coeff));
s->matrix_r = 0x00;
s->matrix_g = 0x00;
s->matrix_b = 0x00;
s->pm = 0x02;
s->status = 0x00;
s->rgbgpio_dir = 0x00;
s->gpio_dir = 0x00;
s->gpio_edge[0] = 0x00;
s->gpio_edge[1] = 0x00;
s->gpio_irq = 0x00;
s->gpio_pdown = 0xff;
}
static inline void blizzard_invalidate_display(void *opaque) {
BlizzardState *s = (BlizzardState *) opaque;
s->invalidate = 1;
}
static uint16_t blizzard_reg_read(void *opaque, uint8_t reg)
{
BlizzardState *s = (BlizzardState *) opaque;
switch (reg) {
case 0x00: /* Revision Code */
return 0xa5;
case 0x02: /* Configuration Readback */
return 0x83; /* Macrovision OK, CNF[2:0] = 3 */
case 0x04: /* PLL M-Divider */
return (s->pll - 1) | (1 << 7);
case 0x06: /* PLL Lock Range Control */
return s->pll_range;
case 0x08: /* PLL Lock Synthesis Control 0 */
return s->pll_ctrl & 0xff;
case 0x0a: /* PLL Lock Synthesis Control 1 */
return s->pll_ctrl >> 8;
case 0x0c: /* PLL Mode Control 0 */
return s->pll_mode;
case 0x0e: /* Clock-Source Select */
return s->clksel;
case 0x10: /* Memory Controller Activate */
case 0x14: /* Memory Controller Bank 0 Status Flag */
return s->memenable;
case 0x18: /* Auto-Refresh Interval Setting 0 */
return s->memrefresh & 0xff;
case 0x1a: /* Auto-Refresh Interval Setting 1 */
return s->memrefresh >> 8;
case 0x1c: /* Power-On Sequence Timing Control */
return s->timing[0];
case 0x1e: /* Timing Control 0 */
return s->timing[1];
case 0x20: /* Timing Control 1 */
return s->timing[2];
case 0x24: /* Arbitration Priority Control */
return s->priority;
case 0x28: /* LCD Panel Configuration */
return s->lcd_config;
case 0x2a: /* LCD Horizontal Display Width */
return s->x >> 3;
case 0x2c: /* LCD Horizontal Non-display Period */
return s->hndp;
case 0x2e: /* LCD Vertical Display Height 0 */
return s->y & 0xff;
case 0x30: /* LCD Vertical Display Height 1 */
return s->y >> 8;
case 0x32: /* LCD Vertical Non-display Period */
return s->vndp;
case 0x34: /* LCD HS Pulse-width */
return s->hsync;
case 0x36: /* LCd HS Pulse Start Position */
return s->skipx >> 3;
case 0x38: /* LCD VS Pulse-width */
return s->vsync;
case 0x3a: /* LCD VS Pulse Start Position */
return s->skipy;
case 0x3c: /* PCLK Polarity */
return s->pclk;
case 0x3e: /* High-speed Serial Interface Tx Configuration Port 0 */
return s->hssi_config[0];
case 0x40: /* High-speed Serial Interface Tx Configuration Port 1 */
return s->hssi_config[1];
case 0x42: /* High-speed Serial Interface Tx Mode */
return s->hssi_config[2];
case 0x44: /* TV Display Configuration */
return s->tv_config;
case 0x46 ... 0x4c: /* TV Vertical Blanking Interval Data bits */
return s->tv_timing[(reg - 0x46) >> 1];
case 0x4e: /* VBI: Closed Caption / XDS Control / Status */
return s->vbi;
case 0x50: /* TV Horizontal Start Position */
return s->tv_x;
case 0x52: /* TV Vertical Start Position */
return s->tv_y;
case 0x54: /* TV Test Pattern Setting */
return s->tv_test;
case 0x56: /* TV Filter Setting */
return s->tv_filter_config;
case 0x58: /* TV Filter Coefficient Index */
return s->tv_filter_idx;
case 0x5a: /* TV Filter Coefficient Data */
if (s->tv_filter_idx < 0x20)
return s->tv_filter_coeff[s->tv_filter_idx ++];
return 0;
case 0x60: /* Input YUV/RGB Translate Mode 0 */
return s->yrc[0];
case 0x62: /* Input YUV/RGB Translate Mode 1 */
return s->yrc[1];
case 0x64: /* U Data Fix */
return s->u;
case 0x66: /* V Data Fix */
return s->v;
case 0x68: /* Display Mode */
return s->mode;
case 0x6a: /* Special Effects */
return s->effect;
case 0x6c: /* Input Window X Start Position 0 */
return s->ix[0] & 0xff;
case 0x6e: /* Input Window X Start Position 1 */
return s->ix[0] >> 3;
case 0x70: /* Input Window Y Start Position 0 */
return s->ix[0] & 0xff;
case 0x72: /* Input Window Y Start Position 1 */
return s->ix[0] >> 3;
case 0x74: /* Input Window X End Position 0 */
return s->ix[1] & 0xff;
case 0x76: /* Input Window X End Position 1 */
return s->ix[1] >> 3;
case 0x78: /* Input Window Y End Position 0 */
return s->ix[1] & 0xff;
case 0x7a: /* Input Window Y End Position 1 */
return s->ix[1] >> 3;
case 0x7c: /* Output Window X Start Position 0 */
return s->ox[0] & 0xff;
case 0x7e: /* Output Window X Start Position 1 */
return s->ox[0] >> 3;
case 0x80: /* Output Window Y Start Position 0 */
return s->oy[0] & 0xff;
case 0x82: /* Output Window Y Start Position 1 */
return s->oy[0] >> 3;
case 0x84: /* Output Window X End Position 0 */
return s->ox[1] & 0xff;
case 0x86: /* Output Window X End Position 1 */
return s->ox[1] >> 3;
case 0x88: /* Output Window Y End Position 0 */
return s->oy[1] & 0xff;
case 0x8a: /* Output Window Y End Position 1 */
return s->oy[1] >> 3;
case 0x8c: /* Input Data Format */
return s->iformat;
case 0x8e: /* Data Source Select */
return s->source;
case 0x90: /* Display Memory Data Port */
return 0;
case 0xa8: /* Border Color 0 */
return s->border_r;
case 0xaa: /* Border Color 1 */
return s->border_g;
case 0xac: /* Border Color 2 */
return s->border_b;
case 0xb4: /* Gamma Correction Enable */
return s->gamma_config;
case 0xb6: /* Gamma Correction Table Index */
return s->gamma_idx;
case 0xb8: /* Gamma Correction Table Data */
return s->gamma_lut[s->gamma_idx ++];
case 0xba: /* 3x3 Matrix Enable */
return s->matrix_ena;
case 0xbc ... 0xde: /* Coefficient Registers */
return s->matrix_coeff[(reg - 0xbc) >> 1];
case 0xe0: /* 3x3 Matrix Red Offset */
return s->matrix_r;
case 0xe2: /* 3x3 Matrix Green Offset */
return s->matrix_g;
case 0xe4: /* 3x3 Matrix Blue Offset */
return s->matrix_b;
case 0xe6: /* Power-save */
return s->pm;
case 0xe8: /* Non-display Period Control / Status */
return s->status | (1 << 5);
case 0xea: /* RGB Interface Control */
return s->rgbgpio_dir;
case 0xec: /* RGB Interface Status */
return s->rgbgpio;
case 0xee: /* General-purpose IO Pins Configuration */
return s->gpio_dir;
case 0xf0: /* General-purpose IO Pins Status / Control */
return s->gpio;
case 0xf2: /* GPIO Positive Edge Interrupt Trigger */
return s->gpio_edge[0];
case 0xf4: /* GPIO Negative Edge Interrupt Trigger */
return s->gpio_edge[1];
case 0xf6: /* GPIO Interrupt Status */
return s->gpio_irq;
case 0xf8: /* GPIO Pull-down Control */
return s->gpio_pdown;
default:
fprintf(stderr, "%s: unknown register %02x\n", __func__, reg);
return 0;
}
}
static void blizzard_reg_write(void *opaque, uint8_t reg, uint16_t value)
{
BlizzardState *s = (BlizzardState *) opaque;
switch (reg) {
case 0x04: /* PLL M-Divider */
s->pll = (value & 0x3f) + 1;
break;
case 0x06: /* PLL Lock Range Control */
s->pll_range = value & 3;
break;
case 0x08: /* PLL Lock Synthesis Control 0 */
s->pll_ctrl &= 0xf00;
s->pll_ctrl |= (value << 0) & 0x0ff;
break;
case 0x0a: /* PLL Lock Synthesis Control 1 */
s->pll_ctrl &= 0x0ff;
s->pll_ctrl |= (value << 8) & 0xf00;
break;
case 0x0c: /* PLL Mode Control 0 */
s->pll_mode = value & 0x77;
if ((value & 3) == 0 || (value & 3) == 3)
fprintf(stderr, "%s: wrong PLL Control bits (%i)\n",
__func__, value & 3);
break;
case 0x0e: /* Clock-Source Select */
s->clksel = value & 0xff;
break;
case 0x10: /* Memory Controller Activate */
s->memenable = value & 1;
break;
case 0x14: /* Memory Controller Bank 0 Status Flag */
break;
case 0x18: /* Auto-Refresh Interval Setting 0 */
s->memrefresh &= 0xf00;
s->memrefresh |= (value << 0) & 0x0ff;
break;
case 0x1a: /* Auto-Refresh Interval Setting 1 */
s->memrefresh &= 0x0ff;
s->memrefresh |= (value << 8) & 0xf00;
break;
case 0x1c: /* Power-On Sequence Timing Control */
s->timing[0] = value & 0x7f;
break;
case 0x1e: /* Timing Control 0 */
s->timing[1] = value & 0x17;
break;
case 0x20: /* Timing Control 1 */
s->timing[2] = value & 0x35;
break;
case 0x24: /* Arbitration Priority Control */
s->priority = value & 1;
break;
case 0x28: /* LCD Panel Configuration */
s->lcd_config = value & 0xff;
if (value & (1 << 7))
fprintf(stderr, "%s: data swap not supported!\n", __func__);
break;
case 0x2a: /* LCD Horizontal Display Width */
s->x = value << 3;
break;
case 0x2c: /* LCD Horizontal Non-display Period */
s->hndp = value & 0xff;
break;
case 0x2e: /* LCD Vertical Display Height 0 */
s->y &= 0x300;
s->y |= (value << 0) & 0x0ff;
break;
case 0x30: /* LCD Vertical Display Height 1 */
s->y &= 0x0ff;
s->y |= (value << 8) & 0x300;
break;
case 0x32: /* LCD Vertical Non-display Period */
s->vndp = value & 0xff;
break;
case 0x34: /* LCD HS Pulse-width */
s->hsync = value & 0xff;
break;
case 0x36: /* LCD HS Pulse Start Position */
s->skipx = value & 0xff;
break;
case 0x38: /* LCD VS Pulse-width */
s->vsync = value & 0xbf;
break;
case 0x3a: /* LCD VS Pulse Start Position */
s->skipy = value & 0xff;
break;
case 0x3c: /* PCLK Polarity */
s->pclk = value & 0x82;
/* Affects calculation of s->hndp, s->hsync and s->skipx. */
break;
case 0x3e: /* High-speed Serial Interface Tx Configuration Port 0 */
s->hssi_config[0] = value;
break;
case 0x40: /* High-speed Serial Interface Tx Configuration Port 1 */
s->hssi_config[1] = value;
if (((value >> 4) & 3) == 3)
fprintf(stderr, "%s: Illegal active-data-links value\n",
__func__);
break;
case 0x42: /* High-speed Serial Interface Tx Mode */
s->hssi_config[2] = value & 0xbd;
break;
case 0x44: /* TV Display Configuration */
s->tv_config = value & 0xfe;
break;
case 0x46 ... 0x4c: /* TV Vertical Blanking Interval Data bits 0 */
s->tv_timing[(reg - 0x46) >> 1] = value;
break;
case 0x4e: /* VBI: Closed Caption / XDS Control / Status */
s->vbi = value;
break;
case 0x50: /* TV Horizontal Start Position */
s->tv_x = value;
break;
case 0x52: /* TV Vertical Start Position */
s->tv_y = value & 0x7f;
break;
case 0x54: /* TV Test Pattern Setting */
s->tv_test = value;
break;
case 0x56: /* TV Filter Setting */
s->tv_filter_config = value & 0xbf;
break;
case 0x58: /* TV Filter Coefficient Index */
s->tv_filter_idx = value & 0x1f;
break;
case 0x5a: /* TV Filter Coefficient Data */
if (s->tv_filter_idx < 0x20)
s->tv_filter_coeff[s->tv_filter_idx ++] = value;
break;
case 0x60: /* Input YUV/RGB Translate Mode 0 */
s->yrc[0] = value & 0xb0;
break;
case 0x62: /* Input YUV/RGB Translate Mode 1 */
s->yrc[1] = value & 0x30;
break;
case 0x64: /* U Data Fix */
s->u = value & 0xff;
break;
case 0x66: /* V Data Fix */
s->v = value & 0xff;
break;
case 0x68: /* Display Mode */
if ((s->mode ^ value) & 3)
s->invalidate = 1;
s->mode = value & 0xb7;
s->enable = value & 1;
s->blank = (value >> 1) & 1;
if (value & (1 << 4))
fprintf(stderr, "%s: Macrovision enable attempt!\n", __func__);
break;
case 0x6a: /* Special Effects */
s->effect = value & 0xfb;
break;
case 0x6c: /* Input Window X Start Position 0 */
s->ix[0] &= 0x300;
s->ix[0] |= (value << 0) & 0x0ff;
break;
case 0x6e: /* Input Window X Start Position 1 */
s->ix[0] &= 0x0ff;
s->ix[0] |= (value << 8) & 0x300;
break;
case 0x70: /* Input Window Y Start Position 0 */
s->iy[0] &= 0x300;
s->iy[0] |= (value << 0) & 0x0ff;
break;
case 0x72: /* Input Window Y Start Position 1 */
s->iy[0] &= 0x0ff;
s->iy[0] |= (value << 8) & 0x300;
break;
case 0x74: /* Input Window X End Position 0 */
s->ix[1] &= 0x300;
s->ix[1] |= (value << 0) & 0x0ff;
break;
case 0x76: /* Input Window X End Position 1 */
s->ix[1] &= 0x0ff;
s->ix[1] |= (value << 8) & 0x300;
break;
case 0x78: /* Input Window Y End Position 0 */
s->iy[1] &= 0x300;
s->iy[1] |= (value << 0) & 0x0ff;
break;
case 0x7a: /* Input Window Y End Position 1 */
s->iy[1] &= 0x0ff;
s->iy[1] |= (value << 8) & 0x300;
break;
case 0x7c: /* Output Window X Start Position 0 */
s->ox[0] &= 0x300;
s->ox[0] |= (value << 0) & 0x0ff;
break;
case 0x7e: /* Output Window X Start Position 1 */
s->ox[0] &= 0x0ff;
s->ox[0] |= (value << 8) & 0x300;
break;
case 0x80: /* Output Window Y Start Position 0 */
s->oy[0] &= 0x300;
s->oy[0] |= (value << 0) & 0x0ff;
break;
case 0x82: /* Output Window Y Start Position 1 */
s->oy[0] &= 0x0ff;
s->oy[0] |= (value << 8) & 0x300;
break;
case 0x84: /* Output Window X End Position 0 */
s->ox[1] &= 0x300;
s->ox[1] |= (value << 0) & 0x0ff;
break;
case 0x86: /* Output Window X End Position 1 */
s->ox[1] &= 0x0ff;
s->ox[1] |= (value << 8) & 0x300;
break;
case 0x88: /* Output Window Y End Position 0 */
s->oy[1] &= 0x300;
s->oy[1] |= (value << 0) & 0x0ff;
break;
case 0x8a: /* Output Window Y End Position 1 */
s->oy[1] &= 0x0ff;
s->oy[1] |= (value << 8) & 0x300;
break;
case 0x8c: /* Input Data Format */
s->iformat = value & 0xf;
s->bpp = blizzard_iformat_bpp[s->iformat];
if (!s->bpp)
fprintf(stderr, "%s: Illegal or unsupported input format %x\n",
__func__, s->iformat);
break;
case 0x8e: /* Data Source Select */
s->source = value & 7;
/* Currently all windows will be "destructive overlays". */
if ((!(s->effect & (1 << 3)) && (s->ix[0] != s->ox[0] ||
s->iy[0] != s->oy[0] ||
s->ix[1] != s->ox[1] ||
s->iy[1] != s->oy[1])) ||
!((s->ix[1] - s->ix[0]) & (s->iy[1] - s->iy[0]) &
(s->ox[1] - s->ox[0]) & (s->oy[1] - s->oy[0]) & 1))
fprintf(stderr, "%s: Illegal input/output window positions\n",
__func__);
blizzard_transfer_setup(s);
break;
case 0x90: /* Display Memory Data Port */
if (!s->data.len && !blizzard_transfer_setup(s))
break;
*s->data.ptr ++ = value;
if (-- s->data.len == 0)
blizzard_window(s);
break;
case 0xa8: /* Border Color 0 */
s->border_r = value;
break;
case 0xaa: /* Border Color 1 */
s->border_g = value;
break;
case 0xac: /* Border Color 2 */
s->border_b = value;
break;
case 0xb4: /* Gamma Correction Enable */
s->gamma_config = value & 0x87;
break;
case 0xb6: /* Gamma Correction Table Index */
s->gamma_idx = value;
break;
case 0xb8: /* Gamma Correction Table Data */
s->gamma_lut[s->gamma_idx ++] = value;
break;
case 0xba: /* 3x3 Matrix Enable */
s->matrix_ena = value & 1;
break;
case 0xbc ... 0xde: /* Coefficient Registers */
s->matrix_coeff[(reg - 0xbc) >> 1] = value & ((reg & 2) ? 0x80 : 0xff);
break;
case 0xe0: /* 3x3 Matrix Red Offset */
s->matrix_r = value;
break;
case 0xe2: /* 3x3 Matrix Green Offset */
s->matrix_g = value;
break;
case 0xe4: /* 3x3 Matrix Blue Offset */
s->matrix_b = value;
break;
case 0xe6: /* Power-save */
s->pm = value & 0x83;
if (value & s->mode & 1)
fprintf(stderr, "%s: The display must be disabled before entering "
"Standby Mode\n", __func__);
break;
case 0xe8: /* Non-display Period Control / Status */
s->status = value & 0x1b;
break;
case 0xea: /* RGB Interface Control */
s->rgbgpio_dir = value & 0x8f;
break;
case 0xec: /* RGB Interface Status */
s->rgbgpio = value & 0xcf;
break;
case 0xee: /* General-purpose IO Pins Configuration */
s->gpio_dir = value;
break;
case 0xf0: /* General-purpose IO Pins Status / Control */
s->gpio = value;
break;
case 0xf2: /* GPIO Positive Edge Interrupt Trigger */
s->gpio_edge[0] = value;
break;
case 0xf4: /* GPIO Negative Edge Interrupt Trigger */
s->gpio_edge[1] = value;
break;
case 0xf6: /* GPIO Interrupt Status */
s->gpio_irq &= value;
break;
case 0xf8: /* GPIO Pull-down Control */
s->gpio_pdown = value;
break;
default:
fprintf(stderr, "%s: unknown register %02x\n", __func__, reg);
break;
}
}
uint16_t s1d13745_read(void *opaque, int dc)
{
BlizzardState *s = (BlizzardState *) opaque;
uint16_t value = blizzard_reg_read(s, s->reg);
if (s->swallow -- > 0)
return 0;
if (dc)
s->reg ++;
return value;
}
void s1d13745_write(void *opaque, int dc, uint16_t value)
{
BlizzardState *s = (BlizzardState *) opaque;
if (s->swallow -- > 0)
return;
if (dc) {
blizzard_reg_write(s, s->reg, value);
if (s->reg != 0x90 && s->reg != 0x5a && s->reg != 0xb8)
s->reg += 2;
} else
s->reg = value & 0xff;
}
void s1d13745_write_block(void *opaque, int dc,
void *buf, size_t len, int pitch)
{
BlizzardState *s = (BlizzardState *) opaque;
while (len > 0) {
if (s->reg == 0x90 && dc &&
(s->data.len || blizzard_transfer_setup(s)) &&
len >= (s->data.len << 1)) {
len -= s->data.len << 1;
s->data.len = 0;
s->data.data = buf;
if (pitch)
s->data.pitch = pitch;
blizzard_window(s);
s->data.data = s->data.buf;
continue;
}
s1d13745_write(opaque, dc, *(uint16_t *) buf);
len -= 2;
buf += 2;
}
}
static void blizzard_update_display(void *opaque)
{
BlizzardState *s = (BlizzardState *) opaque;
DisplaySurface *surface = qemu_console_surface(s->con);
int y, bypp, bypl, bwidth;
uint8_t *src, *dst;
if (!s->enable)
return;
if (s->x != surface_width(surface) || s->y != surface_height(surface)) {
s->invalidate = 1;
qemu_console_resize(s->con, s->x, s->y);
surface = qemu_console_surface(s->con);
}
if (s->invalidate) {
s->invalidate = 0;
if (s->blank) {
bypp = surface_bytes_per_pixel(surface);
memset(surface_data(surface), 0, bypp * s->x * s->y);
return;
}
s->mx[0] = 0;
s->mx[1] = s->x;
s->my[0] = 0;
s->my[1] = s->y;
}
if (s->mx[1] <= s->mx[0])
return;
bypp = surface_bytes_per_pixel(surface);
bypl = bypp * s->x;
bwidth = bypp * (s->mx[1] - s->mx[0]);
y = s->my[0];
src = s->fb + bypl * y + bypp * s->mx[0];
dst = surface_data(surface) + bypl * y + bypp * s->mx[0];
for (; y < s->my[1]; y ++, src += bypl, dst += bypl)
memcpy(dst, src, bwidth);
dpy_gfx_update(s->con, s->mx[0], s->my[0],
s->mx[1] - s->mx[0], y - s->my[0]);
s->mx[0] = s->x;
s->mx[1] = 0;
s->my[0] = s->y;
s->my[1] = 0;
}
static void blizzard_draw_line16_32(uint32_t *dest,
const uint16_t *src, unsigned int width)
{
uint16_t data;
unsigned int r, g, b;
const uint16_t *end = (const void *) src + width;
while (src < end) {
data = *src ++;
b = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x3f) << 2;
data >>= 6;
r = (data & 0x1f) << 3;
data >>= 5;
*dest++ = rgb_to_pixel32(r, g, b);
}
}
static void blizzard_draw_line24mode1_32(uint32_t *dest,
const uint8_t *src, unsigned int width)
{
/* TODO: check if SDL 24-bit planes are not in the same format and
* if so, use memcpy */
unsigned int r[2], g[2], b[2];
const uint8_t *end = src + width;
while (src < end) {
g[0] = *src ++;
r[0] = *src ++;
r[1] = *src ++;
b[0] = *src ++;
*dest++ = rgb_to_pixel32(r[0], g[0], b[0]);
b[1] = *src ++;
g[1] = *src ++;
*dest++ = rgb_to_pixel32(r[1], g[1], b[1]);
}
}
static void blizzard_draw_line24mode2_32(uint32_t *dest,
const uint8_t *src, unsigned int width)
{
unsigned int r, g, b;
const uint8_t *end = src + width;
while (src < end) {
r = *src ++;
src ++;
b = *src ++;
g = *src ++;
*dest++ = rgb_to_pixel32(r, g, b);
}
}
/* No rotation */
static blizzard_fn_t blizzard_draw_fn_32[0x10] = {
NULL,
/* RGB 5:6:5*/
(blizzard_fn_t) blizzard_draw_line16_32,
/* RGB 6:6:6 mode 1 */
(blizzard_fn_t) blizzard_draw_line24mode1_32,
/* RGB 8:8:8 mode 1 */
(blizzard_fn_t) blizzard_draw_line24mode1_32,
NULL, NULL,
/* RGB 6:6:6 mode 2 */
(blizzard_fn_t) blizzard_draw_line24mode2_32,
/* RGB 8:8:8 mode 2 */
(blizzard_fn_t) blizzard_draw_line24mode2_32,
/* YUV 4:2:2 */
NULL,
/* YUV 4:2:0 */
NULL,
NULL, NULL, NULL, NULL, NULL, NULL,
};
/* 90deg, 180deg and 270deg rotation */
static blizzard_fn_t blizzard_draw_fn_r_32[0x10] = {
/* TODO */
[0 ... 0xf] = NULL,
};
static const GraphicHwOps blizzard_ops = {
.invalidate = blizzard_invalidate_display,
.gfx_update = blizzard_update_display,
};
void *s1d13745_init(qemu_irq gpio_int)
{
BlizzardState *s = (BlizzardState *) g_malloc0(sizeof(*s));
DisplaySurface *surface;
s->fb = g_malloc(0x180000);
s->con = graphic_console_init(NULL, 0, &blizzard_ops, s);
surface = qemu_console_surface(s->con);
assert(surface_bits_per_pixel(surface) == 32);
s->line_fn_tab[0] = blizzard_draw_fn_32;
s->line_fn_tab[1] = blizzard_draw_fn_r_32;
blizzard_reset(s);
return s;
}
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