diff options
Diffstat (limited to 'drivers/i2c/chips/rtc8564.h')
| -rw-r--r-- | drivers/i2c/chips/rtc8564.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/i2c/chips/rtc8564.h b/drivers/i2c/chips/rtc8564.h new file mode 100644 index 000000000000..e5342d10b8fa --- /dev/null +++ b/drivers/i2c/chips/rtc8564.h @@ -0,0 +1,78 @@ +/* + * linux/drivers/i2c/chips/rtc8564.h + * + * Copyright (C) 2002-2004 Stefan Eletzhofer + * + * based on linux/drivers/acron/char/pcf8583.h + * Copyright (C) 2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +struct rtc_tm { + unsigned char secs; + unsigned char mins; + unsigned char hours; + unsigned char mday; + unsigned char mon; + unsigned short year; /* xxxx 4 digits :) */ + unsigned char wday; + unsigned char vl; +}; + +struct mem { + unsigned int loc; + unsigned int nr; + unsigned char *data; +}; + +#define RTC_GETDATETIME 0 +#define RTC_SETTIME 1 +#define RTC_SETDATETIME 2 +#define RTC_GETCTRL 3 +#define RTC_SETCTRL 4 +#define MEM_READ 5 +#define MEM_WRITE 6 + +#define RTC8564_REG_CTRL1 0x0 /* T 0 S 0 | T 0 0 0 */ +#define RTC8564_REG_CTRL2 0x1 /* 0 0 0 TI/TP | AF TF AIE TIE */ +#define RTC8564_REG_SEC 0x2 /* VL 4 2 1 | 8 4 2 1 */ +#define RTC8564_REG_MIN 0x3 /* x 4 2 1 | 8 4 2 1 */ +#define RTC8564_REG_HR 0x4 /* x x 2 1 | 8 4 2 1 */ +#define RTC8564_REG_DAY 0x5 /* x x 2 1 | 8 4 2 1 */ +#define RTC8564_REG_WDAY 0x6 /* x x x x | x 4 2 1 */ +#define RTC8564_REG_MON_CENT 0x7 /* C x x 1 | 8 4 2 1 */ +#define RTC8564_REG_YEAR 0x8 /* 8 4 2 1 | 8 4 2 1 */ +#define RTC8564_REG_AL_MIN 0x9 /* AE 4 2 1 | 8 4 2 1 */ +#define RTC8564_REG_AL_HR 0xa /* AE 4 2 1 | 8 4 2 1 */ +#define RTC8564_REG_AL_DAY 0xb /* AE x 2 1 | 8 4 2 1 */ +#define RTC8564_REG_AL_WDAY 0xc /* AE x x x | x 4 2 1 */ +#define RTC8564_REG_CLKOUT 0xd /* FE x x x | x x FD1 FD0 */ +#define RTC8564_REG_TCTL 0xe /* TE x x x | x x FD1 FD0 */ +#define RTC8564_REG_TIMER 0xf /* 8 bit binary */ + +/* Control reg */ +#define RTC8564_CTRL1_TEST1 (1<<3) +#define RTC8564_CTRL1_STOP (1<<5) +#define RTC8564_CTRL1_TEST2 (1<<7) + +#define RTC8564_CTRL2_TIE (1<<0) +#define RTC8564_CTRL2_AIE (1<<1) +#define RTC8564_CTRL2_TF (1<<2) +#define RTC8564_CTRL2_AF (1<<3) +#define RTC8564_CTRL2_TI_TP (1<<4) + +/* CLKOUT frequencies */ +#define RTC8564_FD_32768HZ (0x0) +#define RTC8564_FD_1024HZ (0x1) +#define RTC8564_FD_32 (0x2) +#define RTC8564_FD_1HZ (0x3) + +/* Timer CTRL */ +#define RTC8564_TD_4096HZ (0x0) +#define RTC8564_TD_64HZ (0x1) +#define RTC8564_TD_1HZ (0x2) +#define RTC8564_TD_1_60HZ (0x3) + +#define I2C_DRIVERID_RTC8564 0xf000 |