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-rw-r--r--drivers/rtc/date.c4
-rw-r--r--drivers/rtc/ds12887.c10
-rw-r--r--drivers/rtc/ds1302.c4
-rw-r--r--drivers/rtc/ds1306.c67
-rw-r--r--drivers/rtc/mc13783-rtc.c43
-rw-r--r--drivers/rtc/mc146818.c36
6 files changed, 114 insertions, 50 deletions
diff --git a/drivers/rtc/date.c b/drivers/rtc/date.c
index a83a723..d30ad92 100644
--- a/drivers/rtc/date.c
+++ b/drivers/rtc/date.c
@@ -36,8 +36,8 @@
#define SECDAY 86400L
#define SECYR (SECDAY * 365)
#define leapyear(year) ((year) % 4 == 0)
-#define days_in_year(a) (leapyear(a) ? 366 : 365)
-#define days_in_month(a) (month_days[(a) - 1])
+#define days_in_year(a) (leapyear(a) ? 366 : 365)
+#define days_in_month(a) (month_days[(a) - 1])
static int month_days[12] = {
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
diff --git a/drivers/rtc/ds12887.c b/drivers/rtc/ds12887.c
index 57a446d..990ebba 100644
--- a/drivers/rtc/ds12887.c
+++ b/drivers/rtc/ds12887.c
@@ -35,14 +35,14 @@
#define RTC_MINUTES 0x02
#define RTC_MINUTES_ALARM 0x03
#define RTC_HOURS 0x04
-#define RTC_HOURS_ALARM 0x05
-#define RTC_DAY_OF_WEEK 0x06
+#define RTC_HOURS_ALARM 0x05
+#define RTC_DAY_OF_WEEK 0x06
#define RTC_DATE_OF_MONTH 0x07
#define RTC_MONTH 0x08
#define RTC_YEAR 0x09
-#define RTC_CONTROL_A 0x0A
-#define RTC_CONTROL_B 0x0B
-#define RTC_CONTROL_C 0x0C
+#define RTC_CONTROL_A 0x0A
+#define RTC_CONTROL_B 0x0B
+#define RTC_CONTROL_C 0x0C
#define RTC_CONTROL_D 0x0D
#define RTC_CA_UIP 0x80
diff --git a/drivers/rtc/ds1302.c b/drivers/rtc/ds1302.c
index 3a856c8..e4e9154 100644
--- a/drivers/rtc/ds1302.c
+++ b/drivers/rtc/ds1302.c
@@ -66,7 +66,7 @@ struct ds1302_st
unsigned char month:4;
unsigned char zero4:5;
- unsigned char day:3; /* day of week */
+ unsigned char day:3; /* day of week */
unsigned char year10:4;
unsigned char year:4;
@@ -191,7 +191,7 @@ write_ser_drv(unsigned char addr, unsigned char *buf, int count)
void
rtc_init(void)
{
- struct ds1302_st bbclk;
+ struct ds1302_st bbclk;
unsigned char b;
int mod;
diff --git a/drivers/rtc/ds1306.c b/drivers/rtc/ds1306.c
index 1c8ac7f..29854fc 100644
--- a/drivers/rtc/ds1306.c
+++ b/drivers/rtc/ds1306.c
@@ -62,13 +62,6 @@
#define RTC_USER_RAM_BASE 0x20
-/*
- * External table of chip select functions (see the appropriate board
- * support for the actual definition of the table).
- */
-extern spi_chipsel_type spi_chipsel[];
-extern int spi_chipsel_cnt;
-
static unsigned int bin2bcd (unsigned int n);
static unsigned char bcd2bin (unsigned char c);
@@ -305,11 +298,29 @@ void rtc_reset (void)
static unsigned char rtc_read (unsigned char reg);
static void rtc_write (unsigned char reg, unsigned char val);
+static struct spi_slave *slave;
+
/* read clock time from DS1306 and return it in *tmp */
int rtc_get (struct rtc_time *tmp)
{
unsigned char sec, min, hour, mday, wday, mon, year;
+ /*
+ * Assuming Vcc = 2.0V (lowest speed)
+ *
+ * REVISIT: If we add an rtc_init() function we can do this
+ * step just once.
+ */
+ if (!slave) {
+ slave = spi_setup_slave(0, CFG_SPI_RTC_DEVID, 600000,
+ SPI_MODE_3 | SPI_CS_HIGH);
+ if (!slave)
+ return;
+ }
+
+ if (spi_claim_bus(slave))
+ return;
+
sec = rtc_read (RTC_SECONDS);
min = rtc_read (RTC_MINUTES);
hour = rtc_read (RTC_HOURS);
@@ -318,6 +329,8 @@ int rtc_get (struct rtc_time *tmp)
mon = rtc_read (RTC_MONTH);
year = rtc_read (RTC_YEAR);
+ spi_release_bus(slave);
+
debug ("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon, mday, wday, hour, min, sec);
@@ -360,6 +373,17 @@ int rtc_get (struct rtc_time *tmp)
/* set clock time from *tmp in DS1306 RTC */
void rtc_set (struct rtc_time *tmp)
{
+ /* Assuming Vcc = 2.0V (lowest speed) */
+ if (!slave) {
+ slave = spi_setup_slave(0, CFG_SPI_RTC_DEVID, 600000,
+ SPI_MODE_3 | SPI_CS_HIGH);
+ if (!slave)
+ return;
+ }
+
+ if (spi_claim_bus(slave))
+ return;
+
debug ("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
@@ -371,6 +395,8 @@ void rtc_set (struct rtc_time *tmp)
rtc_write (RTC_DATE_OF_MONTH, bin2bcd (tmp->tm_mday));
rtc_write (RTC_MONTH, bin2bcd (tmp->tm_mon));
rtc_write (RTC_YEAR, bin2bcd (tmp->tm_year - 2000));
+
+ spi_release_bus(slave);
}
/* ------------------------------------------------------------------------- */
@@ -378,6 +404,17 @@ void rtc_set (struct rtc_time *tmp)
/* reset the DS1306 */
void rtc_reset (void)
{
+ /* Assuming Vcc = 2.0V (lowest speed) */
+ if (!slave) {
+ slave = spi_setup_slave(0, CFG_SPI_RTC_DEVID, 600000,
+ SPI_MODE_3 | SPI_CS_HIGH);
+ if (!slave)
+ return;
+ }
+
+ if (spi_claim_bus(slave))
+ return;
+
/* clear the control register */
rtc_write (RTC_CONTROL, 0x00); /* 1st step: reset WP */
rtc_write (RTC_CONTROL, 0x00); /* 2nd step: reset 1Hz, AIE1, AIE0 */
@@ -391,22 +428,18 @@ void rtc_reset (void)
rtc_write (RTC_HOURS_ALARM1, 0x00);
rtc_write (RTC_DAY_OF_WEEK_ALARM0, 0x00);
rtc_write (RTC_DAY_OF_WEEK_ALARM1, 0x00);
+
+ spi_release_bus(slave);
}
/* ------------------------------------------------------------------------- */
static unsigned char rtc_read (unsigned char reg)
{
- unsigned char dout[2]; /* SPI Output Data Bytes */
- unsigned char din[2]; /* SPI Input Data Bytes */
-
- dout[0] = reg;
+ int ret;
- if (spi_xfer (spi_chipsel[CFG_SPI_RTC_DEVID], 16, dout, din) != 0) {
- return 0;
- } else {
- return din[1];
- }
+ ret = spi_w8r8(slave, reg);
+ return ret < 0 ? 0 : ret;
}
/* ------------------------------------------------------------------------- */
@@ -419,7 +452,7 @@ static void rtc_write (unsigned char reg, unsigned char val)
dout[0] = 0x80 | reg;
dout[1] = val;
- spi_xfer (spi_chipsel[CFG_SPI_RTC_DEVID], 16, dout, din);
+ spi_xfer (slave, 16, dout, din, SPI_XFER_BEGIN | SPI_XFER_END);
}
#endif /* end of code exclusion (see #ifdef CONFIG_SXNI855T above) */
diff --git a/drivers/rtc/mc13783-rtc.c b/drivers/rtc/mc13783-rtc.c
index 35b1b8b..b6e1501 100644
--- a/drivers/rtc/mc13783-rtc.c
+++ b/drivers/rtc/mc13783-rtc.c
@@ -24,34 +24,50 @@
#include <rtc.h>
#include <spi.h>
+static struct spi_slave *slave;
+
int rtc_get(struct rtc_time *rtc)
{
u32 day1, day2, time;
u32 reg;
int err, tim, i = 0;
- spi_select(1, 0, SPI_MODE_2 | SPI_CS_HIGH);
+ if (!slave) {
+ /* FIXME: Verify the max SCK rate */
+ slave = spi_setup_slave(1, 0, 1000000,
+ SPI_MODE_2 | SPI_CS_HIGH);
+ if (!slave)
+ return -1;
+ }
+
+ if (spi_claim_bus(slave))
+ return -1;
do {
reg = 0x2c000000;
- err = spi_xfer(0, 32, (uchar *)&reg, (uchar *)&day1);
+ err = spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&day1,
+ SPI_XFER_BEGIN | SPI_XFER_END);
if (err)
return err;
reg = 0x28000000;
- err = spi_xfer(0, 32, (uchar *)&reg, (uchar *)&time);
+ err = spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&time,
+ SPI_XFER_BEGIN | SPI_XFER_END);
if (err)
return err;
reg = 0x2c000000;
- err = spi_xfer(0, 32, (uchar *)&reg, (uchar *)&day2);
+ err = spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&day2,
+ SPI_XFER_BEGIN | SPI_XFER_END);
if (err)
return err;
} while (day1 != day2 && i++ < 3);
+ spi_release_bus(slave);
+
tim = day1 * 86400 + time;
to_tm(tim, rtc);
@@ -65,16 +81,31 @@ void rtc_set(struct rtc_time *rtc)
{
u32 time, day, reg;
+ if (!slave) {
+ /* FIXME: Verify the max SCK rate */
+ slave = spi_setup_slave(1, 0, 1000000,
+ SPI_MODE_2 | SPI_CS_HIGH);
+ if (!slave)
+ return;
+ }
+
time = mktime(rtc->tm_year, rtc->tm_mon, rtc->tm_mday,
rtc->tm_hour, rtc->tm_min, rtc->tm_sec);
day = time / 86400;
time %= 86400;
+ if (spi_claim_bus(slave))
+ return;
+
reg = 0x2c000000 | day | 0x80000000;
- spi_xfer(0, 32, (uchar *)&reg, (uchar *)&day);
+ spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&day,
+ SPI_XFER_BEGIN | SPI_XFER_END);
reg = 0x28000000 | time | 0x80000000;
- spi_xfer(0, 32, (uchar *)&reg, (uchar *)&time);
+ spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&time,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ spi_release_bus(slave);
}
void rtc_reset(void)
diff --git a/drivers/rtc/mc146818.c b/drivers/rtc/mc146818.c
index 70f7017..7c4fe36 100644
--- a/drivers/rtc/mc146818.c
+++ b/drivers/rtc/mc146818.c
@@ -38,21 +38,21 @@ static void rtc_write (uchar reg, uchar val);
static uchar bin2bcd (unsigned int n);
static unsigned bcd2bin(uchar c);
-#define RTC_PORT_MC146818 CFG_ISA_IO_BASE_ADDRESS + 0x70
-#define RTC_SECONDS 0x00
-#define RTC_SECONDS_ALARM 0x01
-#define RTC_MINUTES 0x02
-#define RTC_MINUTES_ALARM 0x03
-#define RTC_HOURS 0x04
-#define RTC_HOURS_ALARM 0x05
-#define RTC_DAY_OF_WEEK 0x06
-#define RTC_DATE_OF_MONTH 0x07
-#define RTC_MONTH 0x08
-#define RTC_YEAR 0x09
-#define RTC_CONFIG_A 0x0A
-#define RTC_CONFIG_B 0x0B
-#define RTC_CONFIG_C 0x0C
-#define RTC_CONFIG_D 0x0D
+#define RTC_PORT_MC146818 CFG_ISA_IO_BASE_ADDRESS + 0x70
+#define RTC_SECONDS 0x00
+#define RTC_SECONDS_ALARM 0x01
+#define RTC_MINUTES 0x02
+#define RTC_MINUTES_ALARM 0x03
+#define RTC_HOURS 0x04
+#define RTC_HOURS_ALARM 0x05
+#define RTC_DAY_OF_WEEK 0x06
+#define RTC_DATE_OF_MONTH 0x07
+#define RTC_MONTH 0x08
+#define RTC_YEAR 0x09
+#define RTC_CONFIG_A 0x0A
+#define RTC_CONFIG_B 0x0B
+#define RTC_CONFIG_C 0x0C
+#define RTC_CONFIG_D 0x0D
/* ------------------------------------------------------------------------- */
@@ -62,12 +62,12 @@ int rtc_get (struct rtc_time *tmp)
uchar sec, min, hour, mday, wday, mon, year;
/* here check if rtc can be accessed */
while((rtc_read(RTC_CONFIG_A)&0x80)==0x80);
- sec = rtc_read (RTC_SECONDS);
- min = rtc_read (RTC_MINUTES);
+ sec = rtc_read (RTC_SECONDS);
+ min = rtc_read (RTC_MINUTES);
hour = rtc_read (RTC_HOURS);
mday = rtc_read (RTC_DATE_OF_MONTH);
wday = rtc_read (RTC_DAY_OF_WEEK);
- mon = rtc_read (RTC_MONTH);
+ mon = rtc_read (RTC_MONTH);
year = rtc_read (RTC_YEAR);
#ifdef CONFIG_AMIGAONEG3SE
wday -= 1; /* VIA 686 stores Sunday = 1, Monday = 2, ... */
generated by cgit v1.1 at 2024-11-17 08:26:48 +0000