diff options
Diffstat (limited to 'qemu/hw/display/ssd0303.c')
| -rw-r--r-- | qemu/hw/display/ssd0303.c | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/qemu/hw/display/ssd0303.c b/qemu/hw/display/ssd0303.c deleted file mode 100644 index d3017563f..000000000 --- a/qemu/hw/display/ssd0303.c +++ /dev/null @@ -1,331 +0,0 @@ -/* - * SSD0303 OLED controller with OSRAM Pictiva 96x16 display. - * - * Copyright (c) 2006-2007 CodeSourcery. - * Written by Paul Brook - * - * This code is licensed under the GPL. - */ - -/* The controller can support a variety of different displays, but we only - implement one. Most of the commends relating to brightness and geometry - setup are ignored. */ -#include "qemu/osdep.h" -#include "hw/i2c/i2c.h" -#include "ui/console.h" - -//#define DEBUG_SSD0303 1 - -#ifdef DEBUG_SSD0303 -#define DPRINTF(fmt, ...) \ -do { printf("ssd0303: " fmt , ## __VA_ARGS__); } while (0) -#define BADF(fmt, ...) \ -do { fprintf(stderr, "ssd0303: error: " fmt , ## __VA_ARGS__); exit(1);} while (0) -#else -#define DPRINTF(fmt, ...) do {} while(0) -#define BADF(fmt, ...) \ -do { fprintf(stderr, "ssd0303: error: " fmt , ## __VA_ARGS__);} while (0) -#endif - -/* Scaling factor for pixels. */ -#define MAGNIFY 4 - -enum ssd0303_mode -{ - SSD0303_IDLE, - SSD0303_DATA, - SSD0303_CMD -}; - -enum ssd0303_cmd { - SSD0303_CMD_NONE, - SSD0303_CMD_SKIP1 -}; - -#define TYPE_SSD0303 "ssd0303" -#define SSD0303(obj) OBJECT_CHECK(ssd0303_state, (obj), TYPE_SSD0303) - -typedef struct { - I2CSlave parent_obj; - - QemuConsole *con; - int row; - int col; - int start_line; - int mirror; - int flash; - int enabled; - int inverse; - int redraw; - enum ssd0303_mode mode; - enum ssd0303_cmd cmd_state; - uint8_t framebuffer[132*8]; -} ssd0303_state; - -static int ssd0303_recv(I2CSlave *i2c) -{ - BADF("Reads not implemented\n"); - return -1; -} - -static int ssd0303_send(I2CSlave *i2c, uint8_t data) -{ - ssd0303_state *s = SSD0303(i2c); - enum ssd0303_cmd old_cmd_state; - - switch (s->mode) { - case SSD0303_IDLE: - DPRINTF("byte 0x%02x\n", data); - if (data == 0x80) - s->mode = SSD0303_CMD; - else if (data == 0x40) - s->mode = SSD0303_DATA; - else - BADF("Unexpected byte 0x%x\n", data); - break; - case SSD0303_DATA: - DPRINTF("data 0x%02x\n", data); - if (s->col < 132) { - s->framebuffer[s->col + s->row * 132] = data; - s->col++; - s->redraw = 1; - } - break; - case SSD0303_CMD: - old_cmd_state = s->cmd_state; - s->cmd_state = SSD0303_CMD_NONE; - switch (old_cmd_state) { - case SSD0303_CMD_NONE: - DPRINTF("cmd 0x%02x\n", data); - s->mode = SSD0303_IDLE; - switch (data) { - case 0x00 ... 0x0f: /* Set lower column address. */ - s->col = (s->col & 0xf0) | (data & 0xf); - break; - case 0x10 ... 0x20: /* Set higher column address. */ - s->col = (s->col & 0x0f) | ((data & 0xf) << 4); - break; - case 0x40 ... 0x7f: /* Set start line. */ - s->start_line = 0; - break; - case 0x81: /* Set contrast (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xa0: /* Mirror off. */ - s->mirror = 0; - break; - case 0xa1: /* Mirror off. */ - s->mirror = 1; - break; - case 0xa4: /* Entire display off. */ - s->flash = 0; - break; - case 0xa5: /* Entire display on. */ - s->flash = 1; - break; - case 0xa6: /* Inverse off. */ - s->inverse = 0; - break; - case 0xa7: /* Inverse on. */ - s->inverse = 1; - break; - case 0xa8: /* Set multiplied ratio (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xad: /* DC-DC power control. */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xae: /* Display off. */ - s->enabled = 0; - break; - case 0xaf: /* Display on. */ - s->enabled = 1; - break; - case 0xb0 ... 0xbf: /* Set Page address. */ - s->row = data & 7; - break; - case 0xc0 ... 0xc8: /* Set COM output direction (Ignored). */ - break; - case 0xd3: /* Set display offset (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xd5: /* Set display clock (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xd8: /* Set color and power mode (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xd9: /* Set pre-charge period (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xda: /* Set COM pin configuration (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xdb: /* Set VCOM dselect level (Ignored). */ - s->cmd_state = SSD0303_CMD_SKIP1; - break; - case 0xe3: /* no-op. */ - break; - default: - BADF("Unknown command: 0x%x\n", data); - } - break; - case SSD0303_CMD_SKIP1: - DPRINTF("skip 0x%02x\n", data); - break; - } - break; - } - return 0; -} - -static void ssd0303_event(I2CSlave *i2c, enum i2c_event event) -{ - ssd0303_state *s = SSD0303(i2c); - - switch (event) { - case I2C_FINISH: - s->mode = SSD0303_IDLE; - break; - case I2C_START_RECV: - case I2C_START_SEND: - case I2C_NACK: - /* Nothing to do. */ - break; - } -} - -static void ssd0303_update_display(void *opaque) -{ - ssd0303_state *s = (ssd0303_state *)opaque; - DisplaySurface *surface = qemu_console_surface(s->con); - uint8_t *dest; - uint8_t *src; - int x; - int y; - int line; - char *colors[2]; - char colortab[MAGNIFY * 8]; - int dest_width; - uint8_t mask; - - if (!s->redraw) - return; - - switch (surface_bits_per_pixel(surface)) { - case 0: - return; - case 15: - dest_width = 2; - break; - case 16: - dest_width = 2; - break; - case 24: - dest_width = 3; - break; - case 32: - dest_width = 4; - break; - default: - BADF("Bad color depth\n"); - return; - } - dest_width *= MAGNIFY; - memset(colortab, 0xff, dest_width); - memset(colortab + dest_width, 0, dest_width); - if (s->flash) { - colors[0] = colortab; - colors[1] = colortab; - } else if (s->inverse) { - colors[0] = colortab; - colors[1] = colortab + dest_width; - } else { - colors[0] = colortab + dest_width; - colors[1] = colortab; - } - dest = surface_data(surface); - for (y = 0; y < 16; y++) { - line = (y + s->start_line) & 63; - src = s->framebuffer + 132 * (line >> 3) + 36; - mask = 1 << (line & 7); - for (x = 0; x < 96; x++) { - memcpy(dest, colors[(*src & mask) != 0], dest_width); - dest += dest_width; - src++; - } - for (x = 1; x < MAGNIFY; x++) { - memcpy(dest, dest - dest_width * 96, dest_width * 96); - dest += dest_width * 96; - } - } - s->redraw = 0; - dpy_gfx_update(s->con, 0, 0, 96 * MAGNIFY, 16 * MAGNIFY); -} - -static void ssd0303_invalidate_display(void * opaque) -{ - ssd0303_state *s = (ssd0303_state *)opaque; - s->redraw = 1; -} - -static const VMStateDescription vmstate_ssd0303 = { - .name = "ssd0303_oled", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_INT32(row, ssd0303_state), - VMSTATE_INT32(col, ssd0303_state), - VMSTATE_INT32(start_line, ssd0303_state), - VMSTATE_INT32(mirror, ssd0303_state), - VMSTATE_INT32(flash, ssd0303_state), - VMSTATE_INT32(enabled, ssd0303_state), - VMSTATE_INT32(inverse, ssd0303_state), - VMSTATE_INT32(redraw, ssd0303_state), - VMSTATE_UINT32(mode, ssd0303_state), - VMSTATE_UINT32(cmd_state, ssd0303_state), - VMSTATE_BUFFER(framebuffer, ssd0303_state), - VMSTATE_I2C_SLAVE(parent_obj, ssd0303_state), - VMSTATE_END_OF_LIST() - } -}; - -static const GraphicHwOps ssd0303_ops = { - .invalidate = ssd0303_invalidate_display, - .gfx_update = ssd0303_update_display, -}; - -static int ssd0303_init(I2CSlave *i2c) -{ - ssd0303_state *s = SSD0303(i2c); - - s->con = graphic_console_init(DEVICE(i2c), 0, &ssd0303_ops, s); - qemu_console_resize(s->con, 96 * MAGNIFY, 16 * MAGNIFY); - return 0; -} - -static void ssd0303_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); - - k->init = ssd0303_init; - k->event = ssd0303_event; - k->recv = ssd0303_recv; - k->send = ssd0303_send; - dc->vmsd = &vmstate_ssd0303; -} - -static const TypeInfo ssd0303_info = { - .name = TYPE_SSD0303, - .parent = TYPE_I2C_SLAVE, - .instance_size = sizeof(ssd0303_state), - .class_init = ssd0303_class_init, -}; - -static void ssd0303_register_types(void) -{ - type_register_static(&ssd0303_info); -} - -type_init(ssd0303_register_types) |