moparisthebest/altra64
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This commit is contained in:
Robin Jones 2017-10-27 21:03:25 +01:00
parent 74900aec6f
commit b7dd066fa0
1 changed files with 23 additions and 30 deletions
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51
src/everdrive.c
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@ -149,7 +149,6 @@ void bi_load_firmware(u8 *firm) {
u32 i;
u16 f_ctr = 0;
evd_cfg &= ~ED_CFG_SDRAM_ON;
bi_reg_wr(REG_CFG, evd_cfg);
@ -170,13 +169,11 @@ void bi_load_firmware(u8 *firm) {
if (f_ctr >= 47)break;
}
while ((bi_reg_rd(REG_CFG_CNT) & 4) == 0) {
bi_reg_wr(REG_CFG_DAT, 0xffff);
while ((bi_reg_rd(REG_CFG_CNT) & 8) != 0);
}
sleep(20);
bi_init();
@ -214,17 +211,20 @@ void evd_init() {
regs_ptr[REG_DMA_CFG] = DCFG_FIFO_TO_RAM;
while (evd_isDmaBusy());
}
}
void evd_ulockRegs(){
volatile u8 val;
val = regs_ptr[0];
regs_ptr[REG_KEY] = 0x1234;
}
void evd_lockRegs() {
volatile u8 val;
val = regs_ptr[0];
regs_ptr[REG_KEY] = 0;
}
@ -234,6 +234,7 @@ u8 evd_fifoRxf() {
u16 val;
//regs_ptr[REG_STATE]++;
val = regs_ptr[REG_STATUS];
return (val >> ED_STATE_RXF) & 1;
}
@ -242,6 +243,7 @@ u8 evd_fifoTxe() {
u16 val;
//regs_ptr[REG_STATE]++;
val = regs_ptr[REG_STATUS];
return (val >> ED_STATE_TXE) & 1;
}
@ -253,6 +255,7 @@ u8 evd_isDmaBusy() {
if(dma_busy_callback != 0)dma_busy_callback();
//regs_ptr[REG_STATE]++;
val = regs_ptr[REG_STATUS];
return (val >> ED_STATE_DMA_BUSY) & 1;
}
@ -270,7 +273,6 @@ u8 evd_fifoRdToCart(u32 cart_addr, u16 blocks) {
volatile u8 val;
cart_addr /= 2048;
val = regs_ptr[0];
regs_ptr[REG_DMA_LEN] = (blocks - 1);
val = regs_ptr[0];
@ -281,7 +283,6 @@ u8 evd_fifoRdToCart(u32 cart_addr, u16 blocks) {
while (evd_isDmaBusy());
if (evd_isDmaTimeout())return EVD_ERROR_FIFO_TIMEOUT;
return 0;
}
@ -290,7 +291,6 @@ u8 evd_fifoWrFromCart(u32 cart_addr, u16 blocks) {
volatile u8 val;
cart_addr /= 2048;
val = regs_ptr[0];
regs_ptr[REG_DMA_LEN] = (blocks - 1);
val = regs_ptr[0];
@ -310,7 +310,6 @@ u8 evd_fifoRd(void *buff, u16 blocks) {
u32 len = blocks == 0 ? 65536 * 512 : blocks * 512;
u32 ram_buff_addr = DMA_BUFF_ADDR / 2048; //(ROM_LEN - len - 65536 * 4) / 2048;
val = regs_ptr[0];
regs_ptr[REG_DMA_LEN] = (blocks - 1);
val = regs_ptr[0];
@ -322,8 +321,6 @@ u8 evd_fifoRd(void *buff, u16 blocks) {
dma_read_s(buff, (0xb0000000 + ram_buff_addr * 2048), len);
if (evd_isDmaTimeout())return EVD_ERROR_FIFO_TIMEOUT;
return 0;
}
@ -353,48 +350,52 @@ u8 evd_fifoWr(void *buff, u16 blocks) {
u8 evd_isSpiBusy() {
volatile u16 val;
regs_ptr[REG_STATUS];
val = regs_ptr[REG_STATUS];
return (val >> ED_STATE_SPI) & 1;
}
u8 evd_SPI(u8 dat) {
volatile u8 val;
val = regs_ptr[0];
regs_ptr[REG_SPI] = dat;
while (evd_isSpiBusy());
//osInvalICache((u32*) & regs_ptr[REG_SPI], 1);
val = regs_ptr[REG_SPI];
return val;
return val;
}
void evd_spiSSOn() {
volatile u8 val;
if (sd_mode)return;
spi_cfg &= ~(1 << SPI_CFG_SS);
val = regs_ptr[0];
regs_ptr[REG_SPI_CFG] = spi_cfg;
}
void evd_spiSSOff() {
volatile u8 val;
spi_cfg |= (1 << SPI_CFG_SS);
val = regs_ptr[0];
regs_ptr[REG_SPI_CFG] = spi_cfg;
}
void evd_enableSDMode() {
sd_mode = 1;
}
void evd_enableSPIMode() {
sd_mode = 0;
}
@ -406,6 +407,7 @@ u8 evd_isSDMode() {
void evd_SDcmdWriteMode(u8 bit1_mode) {
volatile u8 val;
if (!sd_mode)return;
spi_cfg &= ~((1 << SPI_CFG_RD) | (1 << SPI_CFG_DAT));
if (bit1_mode) {
@ -420,8 +422,8 @@ void evd_SDcmdWriteMode(u8 bit1_mode) {
void evd_SDcmdReadMode(u8 bit1_mode) {
volatile u8 val;
if (!sd_mode)return;
spi_cfg |= (1 << SPI_CFG_RD);
spi_cfg &= ~(1 << SPI_CFG_DAT);
@ -436,8 +438,8 @@ void evd_SDcmdReadMode(u8 bit1_mode) {
void evd_SDdatWriteMode(u8 bit4_mode) {
volatile u8 val;
if (!sd_mode)return;
spi_cfg &= ~(1 << SPI_CFG_RD);
spi_cfg |= (1 << SPI_CFG_DAT);
@ -452,8 +454,8 @@ void evd_SDdatWriteMode(u8 bit4_mode) {
void evd_SDdatReadMode(u8 bit4_mode) {
volatile u8 val;
if (!sd_mode)return;
spi_cfg |= (1 << SPI_CFG_RD) | (1 << SPI_CFG_DAT);
if (bit4_mode) {
@ -467,14 +469,12 @@ void evd_SDdatReadMode(u8 bit4_mode) {
void evd_setSpiSpeed(u8 speed) {
volatile u8 val;
spi_cfg &= ~3; //((1 << SPI_CFG_SPD0) | (1 << SPI_CFG_SPD1));
spi_cfg |= speed & 3;
val = regs_ptr[0];
regs_ptr[REG_SPI_CFG] = spi_cfg;
}
u8 evd_mmcReadToCart(u32 cart_addr, u32 len) {
@ -482,7 +482,6 @@ u8 evd_mmcReadToCart(u32 cart_addr, u32 len) {
volatile u8 val;
cart_addr /= 2048;
val = regs_ptr[0];
regs_ptr[REG_DMA_LEN] = (len - 1);
val = regs_ptr[0];
@ -520,7 +519,6 @@ u16 evd_readReg(u8 reg) {
void evd_setSaveType(u8 type) {
u8 eeprom_on, sram_on, eeprom_size, sram_size;
eeprom_on = 0;
sram_on = 0;
@ -552,11 +550,9 @@ void evd_setSaveType(u8 type) {
break;
}
volatile u8 val;
val = regs_ptr[0];
regs_ptr[REG_SAV_CFG] = (eeprom_on << SAV_EEP_ON | sram_on << SAV_SRM_ON | eeprom_size << SAV_EEP_SIZE | sram_size << SAV_SRM_SIZE);
}
void evd_writeReg(u8 reg, u16 val) {
@ -564,7 +560,6 @@ void evd_writeReg(u8 reg, u16 val) {
volatile u8 tmp;
tmp = regs_ptr[0];
regs_ptr[reg] = val;
}
void evd_mmcSetDmaSwap(u8 state) {
@ -575,22 +570,20 @@ void evd_mmcSetDmaSwap(u8 state) {
void evd_writeMsg(u8 dat) {
evd_writeReg(REG_MSG, dat);
}
u8 evd_readMsg() {
return evd_readReg(REG_MSG);
}
u16 evd_getFirmVersion() {
return evd_readReg(REG_VER);
}
void evd_setDmaCallback(void (*callback)()) {
dma_busy_callback = callback;
}