/* Port Controls (Platform dependent) */
/* SD card socket connections */
-//#define SD_CD_0 SBIT(PORT,) /* Card detect switch */
+/* TODO: config.h cofig macros */
+
+//#define SD_CD_0 SBIT(PORT,) /* Card detect switch */
//#define SD_CD_0_IN SBIT(PIN,)
//#define SD_CD_0_DDR SBIT(DDR,)
-//#define SD_WP_0 SBIT(PORT,) /* Write protect switch */
+//#define SD_WP_0 SBIT(PORT,) /* Write protect switch */
//#define SD_WP_0_IN SBIT(PIN,)
//#define SD_WP_0_DDR SBIT(DDR,)
-#define SD_CS_0 SBIT(PORTB,0) /* Chip select pin */
+#define SD_CS_0 SBIT(PORTB,0) /* Chip select pin */
#define SD_CS_0_IN SBIT(PINB,0)
#define SD_CS_0_DDR SBIT(DDRB,0)
-//#define SD_CD_1 SBIT(PORTG,3) /* Card detect switch */
+
+//#define SD_CD_1 SBIT(PORTG,3) /* Card detect switch */
//#define SD_CD_1_IN SBIT(PING,3)
//#define SD_CD_1_DDR SBIT(DDRG,3)
-//#define SD_WP_1 SBIT(PORTG,5) /* Write protect switch */
-#define SD_WP_1_IN SBIT(PING,5)
-#define SD_WP_1_DDR SBIT(DDRG,5)
+//#define SD_WP_1 SBIT(PORTG,5) /* Write protect switch */
+//#define SD_WP_1_IN SBIT(PING,5)
+//#define SD_WP_1_DDR SBIT(DDRG,5)
#define SD_CS_1 SBIT(PORTG,4) /* Chip select pin */
#define SD_CS_1_IN SBIT(PING,4)
#define SPI_CLK_SLOW() SPISetMMCInitClock() /* Set slow clock (100k-400k) */
-#define SPI_CLK_FAST() SPISetFastClock() /* Set fast clock (depends on the CSD) */
+#define SPI_CLK_FAST() SPISetFastClock() /* Set fast clock (depends on the CSD) */
/*--------------------------------------------------------------------------
Definitions for MMC/SDC command
SPI_OFF();
if (drv == 0) {
-#ifndef SD_CD_0
- // SD_CS_0 = 1;
+#ifdef SD_CS_0_IN
+ SD_CS_0_DDR = 0;
+ SD_CS_0 = 0;
#endif
} else {
-#ifndef SD_CD_1
+#ifdef SD_CS_1_IN
SD_CS_1_DDR = 0;
SD_CS_1 = 0;
#endif
int select(BYTE drv) /* 1:Successful, 0:Timeout */
{
//debug("*** enter select()\n");
- if (drv == 0)
+ if (drv == 0) {
+#ifdef SD_CS_0_IN
+ SD_CS_0 = 1;
+ SD_CS_0_DDR = 1;
+#endif
SD_CS_0 = 0;
- else {
-#ifndef SD_CD_1
+ } else {
+#ifdef SD_CS_1_IN
SD_CS_1 = 1;
SD_CS_1_DDR = 1;
#endif
if (drv == 0) {
#ifdef SD_PWR_0
- SD_PWR_0_DDR = 1; /* Turns on PWR pin as output */
SD_PWR_0 = 0; /* Drives PWR pin high */
-
- for (uint32_t to = get_timer(0); get_timer(to) < 30;)
- ; /* Wait for 30ms */
#endif
-#ifdef SD_WP_0
- SD_WP_0_DDR = 0;
- SD_WP_0 = 1;
-#endif
-#ifdef SD_CD_0
- /* Card detect, input with pullup */
- SD_CD_0_DDR = 0;
- SD_CD_0 = 1;
-#endif
- SD_CS_0 = 1;
- SD_CS_0_DDR = 1;
} else {
#ifdef SD_PWR_1
- SD_PWR_1_DDR = 1; /* Turns on PWR pin as output */
SD_PWR_1 = 0; /* Drives PWR pin high */
-
+#endif
+ }
+#if defined SD_PWR_0 || defined SD_PWR_1
for (uint32_t to = get_timer(0); get_timer(to) < 30;)
; /* Wait for 30ms */
#endif
-
-#ifdef SD_WP_1
- SD_WP_1_DDR = 0;
- SD_WP_1 = 1;
-#endif
-#ifdef SD_CD_1
- /* Card detect, input with pullup */
- SD_CD_1_DDR = 0;
- SD_CD_1 = 1;
- SD_CS_1 = 1;
- SD_CS_1_DDR = 1;
-#else
- /* Input, no pullup */
- SD_CS_1 = 0;
- SD_CS_1_DDR = 0;
-#endif
- }
-
//debug("*** exit power_on()\n");
}
---------------------------------------------------------------------------*/
+void setup_mmc(void)
+{
+#ifdef SD_PWR_0
+ SD_PWR_1 = 1; /* Drives PWR pin low */
+ SD_PWR_0_DDR = 1; /* Turns on PWR pin as output */
+#endif
+#ifdef SD_WP_0
+ SD_WP_0_DDR = 0;
+ SD_WP_0 = 1; /* Pullup */
+#endif
+
+#ifdef SD_PWR_1
+ SD_PWR_1 = 1; /* Drives PWR pin low */
+ SD_PWR_1_DDR = 1; /* Turns on PWR pin as output */
+#endif
+#ifdef SD_WP_1
+ SD_WP_1_DDR = 0;
+ SD_WP_1 = 1; /* Pullup */
+#endif
+
+ /* SPI as master */
+ PRR0 &= ~_BV(PRSPI);
+ SPI_DDR = (SPI_DDR & ~(_BV(SPI_MISO) | _BV(SPI_SS)))
+ | _BV(SPI_MOSI) | _BV(SPI_SCK);
+ SPI_PORT = SPI_PORT & ~(_BV(SPI_MOSI) | _BV(SPI_SCK));
+
+#if defined SD_CD_0
+ SD_CD_0_DDR = 0;
+ SD_CD_0 = 1;
+#elif defined SD_CS_0_IN
+ SD_CS_0_DDR = 0;
+ SD_CS_0 = 0;
+#else
+ SD_CS_0_DDR = 1;
+ SD_CS_0 = 1;
+#endif
+
+#if defined SD_CD_1
+ SD_CD_1_DDR = 0;
+ SD_CD_1 = 1;
+#elif defined SD_CS_1_IN
+ SD_CS_1_DDR = 0;
+ SD_CS_1 = 0;
+#else
+ SD_CS_1_DDR = 1;
+ SD_CS_1 = 1;
+#endif
+}
+
/*-----------------------------------------------------------------------*/
/* Initialize Disk Drive */
/*-----------------------------------------------------------------------*/
#ifdef SD_WP_0
if (SD_WP_0_IN == 0) /* Write protected */
s |= STA_PROTECT;
- else /* Write enabled */
+ else /* Write enabled */
s &= ~STA_PROTECT;
#endif
-#ifdef SD_CD_0
+
+#if defined SD_CD_0
if (SD_CD_0_IN == 0) /* Card inserted */
s &= ~STA_NODISK;
- else /* Socket empty */
+ else /* Socket empty */
s |= (STA_NODISK | STA_NOINIT);
+#elif defined SD_CS_0_IN
+ if (SD_CS_0_DDR == 0) {
+ if (SD_CS_0_IN == 1) /* Card inserted */
+ s &= ~STA_NODISK;
+ else /* Socket empty */
+ s |= (STA_NODISK | STA_NOINIT);
+ }
#endif
- socket[0].stat = s; /* Update MMC status */
+ socket[0].stat = s; /* Update MMC status */
s = socket[1].stat;
#ifdef SD_WP_1
if (SD_WP_1_IN == 0) /* Write protected */
s |= STA_PROTECT;
- else /* Write enabled */
+ else /* Write enabled */
s &= ~STA_PROTECT;
#endif
-#ifdef SD_CD_1
+
+#if defined SD_CD_1
if (SD_CD_1_IN == 0) /* Card inserted */
s &= ~STA_NODISK;
- else /* Socket empty */
+ else /* Socket empty */
s |= (STA_NODISK | STA_NOINIT);
-#else
+#elif defined SD_CS_1_IN
if (SD_CS_1_DDR == 0) {
- if (SD_CS_1_IN == 1) /* Card inserted */
+ if (SD_CS_1_IN == 1) /* Card inserted */
s &= ~STA_NODISK;
- else /* Socket empty */
+ else /* Socket empty */
s |= (STA_NODISK | STA_NOINIT);
}
#endif
projects / z180-stamp.git / blobdiff