/*um8669f : aa to 108 unlocks next 108 write is register select (Cx?) data read/write to 109 55 to 108 locks C1 bit 7 - enable PnP registers PnP registers : 07 - device : 0 = FDC 1 = COM1 2 = COM2 3 = LPT1 5 = Game port 30 - enable 60/61 - addr 70 - IRQ 74 - DMA*/ #include #include #include #include #include #include "86box.h" #include "device.h" #include "86box_io.h" #include "timer.h" #include "pci.h" #include "lpt.h" #include "serial.h" #include "fdd.h" #include "fdc.h" #include "sio.h" #define DEV_FDC 0 #define DEV_COM1 1 #define DEV_COM2 2 #define DEV_LPT1 3 #define DEV_GAME 5 #define REG_DEVICE 0x07 #define REG_ENABLE 0x30 #define REG_ADDRHI 0x60 #define REG_ADDRLO 0x61 #define REG_IRQ 0x70 #define REG_DMA 0x74 typedef struct um8669f_t { int locked, cur_reg_108, cur_reg, cur_device, pnp_active; uint8_t regs_108[256]; struct { int enable; uint16_t addr; int irq; int dma; } dev[8]; fdc_t *fdc; serial_t *uart[2]; } um8669f_t; static void um8669f_pnp_write(uint16_t port, uint8_t val, void *priv) { um8669f_t *dev = (um8669f_t *) priv; uint8_t valxor = 0; uint8_t lpt_irq = 0xff; if (port == 0x279) dev->cur_reg = val; else { if (dev->cur_reg == REG_DEVICE) dev->cur_device = val & 7; else { switch (dev->cur_reg) { case REG_ENABLE: valxor = dev->dev[dev->cur_device].enable ^ val; dev->dev[dev->cur_device].enable = val; break; case REG_ADDRLO: valxor = (dev->dev[dev->cur_device].addr & 0xff) ^ val; dev->dev[dev->cur_device].addr = (dev->dev[dev->cur_device].addr & 0xff00) | val; break; case REG_ADDRHI: valxor = ((dev->dev[dev->cur_device].addr >> 8) & 0xff) ^ val; dev->dev[dev->cur_device].addr = (dev->dev[dev->cur_device].addr & 0x00ff) | (val << 8); break; case REG_IRQ: valxor = dev->dev[dev->cur_device].irq ^ val; dev->dev[dev->cur_device].irq = val; break; case REG_DMA: valxor = dev->dev[dev->cur_device].dma ^ val; dev->dev[dev->cur_device].dma = val; break; default: valxor = 0; break; } switch (dev->cur_device) { case DEV_FDC: if ((dev->cur_reg == REG_ENABLE) && valxor) { fdc_remove(dev->fdc); if (dev->dev[DEV_FDC].enable & 1) fdc_set_base(dev->fdc, 0x03f0); } break; case DEV_COM1: if ((dev->cur_reg == REG_ENABLE) && valxor) { serial_remove(dev->uart[0]); if (dev->dev[DEV_COM1].enable & 1) serial_setup(dev->uart[0], dev->dev[DEV_COM1].addr, dev->dev[DEV_COM1].irq); } break; case DEV_COM2: if ((dev->cur_reg == REG_ENABLE) && valxor) { serial_remove(dev->uart[1]); if (dev->dev[DEV_COM2].enable & 1) serial_setup(dev->uart[1], dev->dev[DEV_COM2].addr, dev->dev[DEV_COM2].irq); } break; case DEV_LPT1: if ((dev->cur_reg == REG_ENABLE) && valxor) { lpt1_remove(); if (dev->dev[DEV_LPT1].enable & 1) lpt1_init(dev->dev[DEV_LPT1].addr); } if (dev->dev[DEV_LPT1].irq <= 15) lpt_irq = dev->dev[DEV_LPT1].irq; lpt1_irq(lpt_irq); break; } } } } static uint8_t um8669f_pnp_read(uint16_t port, void *priv) { um8669f_t *dev = (um8669f_t *) priv; uint8_t ret = 0xff; switch (dev->cur_reg) { case REG_DEVICE: ret = dev->cur_device; break; case REG_ENABLE: ret = dev->dev[dev->cur_device].enable; break; case REG_ADDRLO: ret = dev->dev[dev->cur_device].addr & 0xff; break; case REG_ADDRHI: ret = dev->dev[dev->cur_device].addr >> 8; break; case REG_IRQ: ret = dev->dev[dev->cur_device].irq; break; case REG_DMA: ret = dev->dev[dev->cur_device].dma; break; } return ret; } void um8669f_write(uint16_t port, uint8_t val, void *priv) { um8669f_t *dev = (um8669f_t *) priv; int new_pnp_active; if (dev->locked) { if ((port == 0x108) && (val == 0xaa)) dev->locked = 0; } else { if (port == 0x108) { if (val == 0x55) dev->locked = 1; else dev->cur_reg_108 = val; } else { dev->regs_108[dev->cur_reg_108] = val; if (dev->cur_reg_108 == 0xc1) { new_pnp_active = !!(dev->regs_108[0xc1] & 0x80); if (new_pnp_active != dev->pnp_active) { if (new_pnp_active) { io_sethandler(0x0279, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev); io_sethandler(0x0a79, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev); io_sethandler(0x03e3, 0x0001, um8669f_pnp_read, NULL, NULL, NULL, NULL, NULL, dev); } else { io_removehandler(0x0279, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev); io_removehandler(0x0a79, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev); io_removehandler(0x03e3, 0x0001, um8669f_pnp_read, NULL, NULL, NULL, NULL, NULL, dev); } dev->pnp_active = new_pnp_active; } } } } } uint8_t um8669f_read(uint16_t port, void *priv) { um8669f_t *dev = (um8669f_t *) priv; uint8_t ret = 0xff; if (!dev->locked) { if (port == 0x108) ret = dev->cur_reg_108; /* ??? */ else ret = dev->regs_108[dev->cur_reg_108]; } return ret; } void um8669f_reset(um8669f_t *dev) { fdc_reset(dev->fdc); serial_remove(dev->uart[0]); serial_setup(dev->uart[0], SERIAL1_ADDR, SERIAL1_IRQ); serial_remove(dev->uart[1]); serial_setup(dev->uart[1], SERIAL2_ADDR, SERIAL2_IRQ); lpt1_remove(); lpt1_init(0x378); if (dev->pnp_active) { io_removehandler(0x0279, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev); io_removehandler(0x0a79, 0x0001, NULL, NULL, NULL, um8669f_pnp_write, NULL, NULL, dev); io_removehandler(0x03e3, 0x0001, um8669f_pnp_read, NULL, NULL, NULL, NULL, NULL, dev); dev->pnp_active = 0; } dev->locked = 1; dev->dev[DEV_FDC].enable = 1; dev->dev[DEV_FDC].addr = 0x03f0; dev->dev[DEV_FDC].irq = 6; dev->dev[DEV_FDC].dma = 2; dev->dev[DEV_COM1].enable = 1; dev->dev[DEV_COM1].addr = 0x03f8; dev->dev[DEV_COM1].irq = 4; dev->dev[DEV_COM2].enable = 1; dev->dev[DEV_COM2].addr = 0x02f8; dev->dev[DEV_COM2].irq = 3; dev->dev[DEV_LPT1].enable = 1; dev->dev[DEV_LPT1].addr = 0x0378; dev->dev[DEV_LPT1].irq = 7; } static void um8669f_close(void *priv) { um8669f_t *dev = (um8669f_t *) priv; free(dev); } static void * um8669f_init(const device_t *info) { um8669f_t *dev = (um8669f_t *) malloc(sizeof(um8669f_t)); memset(dev, 0, sizeof(um8669f_t)); dev->fdc = device_add(&fdc_at_smc_device); dev->uart[0] = device_add_inst(&ns16550_device, 1); dev->uart[1] = device_add_inst(&ns16550_device, 2); io_sethandler(0x0108, 0x0002, um8669f_read, NULL, NULL, um8669f_write, NULL, NULL, dev); um8669f_reset(dev); return dev; } const device_t um8669f_device = { "UMC UM8669F Super I/O", 0, 0, um8669f_init, um8669f_close, NULL, NULL, NULL, NULL, NULL };