diff options
Diffstat (limited to 'drivers/rtc/m41t11.c')
| -rw-r--r-- | drivers/rtc/m41t11.c | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/drivers/rtc/m41t11.c b/drivers/rtc/m41t11.c index 3727310..3a77c1b 100644 --- a/drivers/rtc/m41t11.c +++ b/drivers/rtc/m41t11.c @@ -35,15 +35,15 @@ is what should be done. #define CONFIG_RTC_M41T11 1 -#define CFG_I2C_RTC_ADDR 0x68 +#define CONFIG_SYS_I2C_RTC_ADDR 0x68 #if 0 -#define CFG_M41T11_EXT_CENTURY_DATA +#define CONFIG_SYS_M41T11_EXT_CENTURY_DATA #else -#define CFG_M41T11_BASE_YEAR 2000 +#define CONFIG_SYS_M41T11_BASE_YEAR 2000 #endif */ -#if defined(CFG_I2C_RTC_ADDR) && defined(CONFIG_CMD_DATE) +#if defined(CONFIG_SYS_I2C_RTC_ADDR) && defined(CONFIG_CMD_DATE) static unsigned bcd2bin (uchar n) { @@ -75,7 +75,7 @@ static unsigned char bin2bcd (unsigned int n) #define RTC_CONTROL_ADDR 0x7 -#ifndef CFG_M41T11_EXT_CENTURY_DATA +#ifndef CONFIG_SYS_M41T11_EXT_CENTURY_DATA #define REG_CNT (RTC_REG_CNT+1) @@ -83,8 +83,8 @@ static unsigned char bin2bcd (unsigned int n) you only get 00-99 for the year we will asume you want from the year 2000 if you don't set the config */ -#ifndef CFG_M41T11_BASE_YEAR -#define CFG_M41T11_BASE_YEAR 2000 +#ifndef CONFIG_SYS_M41T11_BASE_YEAR +#define CONFIG_SYS_M41T11_BASE_YEAR 2000 #endif #else @@ -101,7 +101,7 @@ int rtc_get (struct rtc_time *tmp) int rel = 0; uchar data[RTC_REG_CNT]; - i2c_read(CFG_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, data, RTC_REG_CNT); + i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, data, RTC_REG_CNT); if( data[RTC_SEC_ADDR] & 0x80 ){ printf( "m41t11 RTC Clock stopped!!!\n" ); @@ -112,14 +112,14 @@ int rtc_get (struct rtc_time *tmp) tmp->tm_hour = bcd2bin (data[RTC_HOUR_ADDR] & 0x3F); tmp->tm_mday = bcd2bin (data[RTC_DATE_ADDR] & 0x3F); tmp->tm_mon = bcd2bin (data[RTC_MONTH_ADDR]& 0x1F); -#ifndef CFG_M41T11_EXT_CENTURY_DATA - tmp->tm_year = CFG_M41T11_BASE_YEAR +#ifndef CONFIG_SYS_M41T11_EXT_CENTURY_DATA + tmp->tm_year = CONFIG_SYS_M41T11_BASE_YEAR + bcd2bin(data[RTC_YEARS_ADDR]) + ((data[RTC_HOUR_ADDR]&0x40) ? 100 : 0); #else { unsigned char cent; - i2c_read(CFG_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, ¢, M41T11_YEAR_SIZE); + i2c_read(CONFIG_SYS_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, ¢, M41T11_YEAR_SIZE); if( !(data[RTC_HOUR_ADDR] & 0x80) ){ printf( "m41t11 RTC: cann't keep track of years without CEB set\n" ); rel = -1; @@ -127,7 +127,7 @@ int rtc_get (struct rtc_time *tmp) if( (cent & 0x1) != ((data[RTC_HOUR_ADDR]&0x40)>>7) ){ /*century flip store off new year*/ cent += 1; - i2c_write(CFG_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, ¢, M41T11_YEAR_SIZE); + i2c_write(CONFIG_SYS_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, ¢, M41T11_YEAR_SIZE); } tmp->tm_year =((int)cent*100)+bcd2bin(data[RTC_YEARS_ADDR]); } @@ -143,7 +143,7 @@ int rtc_get (struct rtc_time *tmp) return rel; } -void rtc_set (struct rtc_time *tmp) +int rtc_set (struct rtc_time *tmp) { uchar data[RTC_REG_CNT]; @@ -161,34 +161,36 @@ void rtc_set (struct rtc_time *tmp) data[RTC_HOUR_ADDR] |= 0x80;/*we will always use CEB*/ data[RTC_YEARS_ADDR] = bin2bcd(tmp->tm_year%100);/*same thing either way*/ -#ifndef CFG_M41T11_EXT_CENTURY_DATA - if( ((tmp->tm_year - CFG_M41T11_BASE_YEAR) > 200) || - (tmp->tm_year < CFG_M41T11_BASE_YEAR) ){ +#ifndef CONFIG_SYS_M41T11_EXT_CENTURY_DATA + if( ((tmp->tm_year - CONFIG_SYS_M41T11_BASE_YEAR) > 200) || + (tmp->tm_year < CONFIG_SYS_M41T11_BASE_YEAR) ){ printf( "m41t11 RTC setting year out of range!!need recompile\n" ); } - data[RTC_HOUR_ADDR] |= (tmp->tm_year - CFG_M41T11_BASE_YEAR) > 100 ? 0x40 : 0; + data[RTC_HOUR_ADDR] |= (tmp->tm_year - CONFIG_SYS_M41T11_BASE_YEAR) > 100 ? 0x40 : 0; #else { unsigned char cent; cent = tmp->tm_year ? tmp->tm_year / 100 : 0; data[RTC_HOUR_ADDR] |= (cent & 0x1) ? 0x40 : 0; - i2c_write(CFG_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, ¢, M41T11_YEAR_SIZE); + i2c_write(CONFIG_SYS_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, ¢, M41T11_YEAR_SIZE); } #endif - i2c_write(CFG_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, data, RTC_REG_CNT); + i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, data, RTC_REG_CNT); + + return 0; } void rtc_reset (void) { unsigned char val; /* clear all control & status registers */ - i2c_read(CFG_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, &val, 1); + i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, &val, 1); val = val & 0x7F;/*make sure we are running*/ - i2c_write(CFG_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, &val, RTC_REG_CNT); + i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, &val, RTC_REG_CNT); - i2c_read(CFG_I2C_RTC_ADDR, RTC_CONTROL_ADDR, 1, &val, 1); + i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_CONTROL_ADDR, 1, &val, 1); val = val & 0x3F;/*turn off freq test keep calibration*/ - i2c_write(CFG_I2C_RTC_ADDR, RTC_CONTROL_ADDR, 1, &val, 1); + i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_CONTROL_ADDR, 1, &val, 1); } int rtc_store(int addr, unsigned char* data, int size) @@ -196,12 +198,12 @@ int rtc_store(int addr, unsigned char* data, int size) /*don't let things wrap onto the time on a write*/ if( (addr+size) >= M41T11_STORAGE_SZ ) return 1; - return i2c_write( CFG_I2C_RTC_ADDR, REG_CNT+addr, 1, data, size ); + return i2c_write( CONFIG_SYS_I2C_RTC_ADDR, REG_CNT+addr, 1, data, size ); } int rtc_recall(int addr, unsigned char* data, int size) { - return i2c_read( CFG_I2C_RTC_ADDR, REG_CNT+addr, 1, data, size ); + return i2c_read( CONFIG_SYS_I2C_RTC_ADDR, REG_CNT+addr, 1, data, size ); } #endif |