RIOT-OS/RIOT
RIOT-OS/RIOT
1
0
Fork 0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
Code Releases Activity

drivers/ds1307: adapt to new i2c API

Browse Source
This commit is contained in:
Michel Rottleuthner 2018-07-04 10:03:42 +02:00 committed by dylad
parent df52d6b1b8
commit 1362289daf
1 changed files with 19 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/ds1307/ds1307.c
View File

@ -56,24 +56,18 @@ int ds1307_init(ds1307_t *dev, const ds1307_params_t *params)
dev->i2c = params->i2c;
i2c_acquire(dev->i2c);
res = i2c_init_master(dev->i2c, params->clk);
if (res < 0) {
i2c_release(dev->i2c);
DEBUG("ds1307: Error initializing I2C: %i\n", res);
return -1;
}
/* normalize hour format */
res = i2c_read_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_HOUR, &hour);
if (res <= 0) { /* should be 1 if device is connected */
res = i2c_read_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_HOUR, &hour, 0);
if (res != 0) { /* should be 0 if device is connected */
i2c_release(dev->i2c);
DEBUG("ds1307: Error reading HOUR register on init: %i\n", res);
return -1;
}
res = i2c_write_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_HOUR,
_convert_12_to_24(hour));
_convert_12_to_24(hour), 0);
i2c_release(dev->i2c);
if (res <= 0) {
if (res != 0) {
DEBUG("ds1307: Error writing HOUR register on init: %i\n", res);
return -1;
}
@ -101,13 +95,13 @@ int ds1307_set_time(const ds1307_t *dev, const struct tm *time)
regs[DS1307_REG_YEAR] = bcd_from_byte(time->tm_year + DS1307_YEAR_OFFSET);
i2c_acquire(dev->i2c);
res = i2c_write_regs(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SEC, regs,
sizeof(regs));
sizeof(regs), 0);
DEBUG("ds1307: wrote bytes %02x %02x %02x %02x %02x %02x %02x to device (result: %i)\n",
regs[DS1307_REG_SEC], regs[DS1307_REG_MIN], regs[DS1307_REG_HOUR],
regs[DS1307_REG_DOW], regs[DS1307_REG_DOM], regs[DS1307_REG_MON],
regs[DS1307_REG_YEAR], res);
i2c_release(dev->i2c);
return (res < 0) ? -1 : 0;
return (res != 0) ? -1 : 0;
}
int ds1307_get_time(const ds1307_t *dev, struct tm *time)
@ -117,13 +111,13 @@ int ds1307_get_time(const ds1307_t *dev, struct tm *time)
i2c_acquire(dev->i2c);
res = i2c_read_regs(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SEC, regs,
sizeof(regs));
sizeof(regs), 0);
DEBUG("ds1307: read bytes %02x %02x %02x %02x %02x %02x %02x from device (result: %i)\n",
regs[DS1307_REG_SEC], regs[DS1307_REG_MIN], regs[DS1307_REG_HOUR],
regs[DS1307_REG_DOW], regs[DS1307_REG_DOM], regs[DS1307_REG_MON],
regs[DS1307_REG_YEAR], res);
i2c_release(dev->i2c);
if (res < 0) {
if (res != 0) {
return -1;
}
time->tm_sec = bcd_to_byte(regs[DS1307_REG_SEC] & DS1307_REG_SEC_MASK);
@ -145,16 +139,16 @@ int ds1307_halt(const ds1307_t *dev)
uint8_t sec;
i2c_acquire(dev->i2c);
res = i2c_read_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SEC, &sec);
if (res < 0) {
res = i2c_read_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SEC, &sec, 0);
if (res != 0) {
i2c_release(dev->i2c);
DEBUG("ds1307: Error reading SEC register on halt: %i\n", res);
return -1;
}
sec |= DS1307_REG_SEC_CH;
res = i2c_write_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SEC, sec);
res = i2c_write_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SEC, sec, 0);
i2c_release(dev->i2c);
return (res < 0) ? -1 : 0;
return (res != 0) ? -1 : 0;
}
int ds1307_set_sqw_mode(const ds1307_t *dev, ds1307_sqw_mode_t mode)
@ -163,7 +157,7 @@ int ds1307_set_sqw_mode(const ds1307_t *dev, ds1307_sqw_mode_t mode)
i2c_acquire(dev->i2c);
res = i2c_write_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SQW_CTL,
(uint8_t)mode);
(uint8_t)mode, 0);
i2c_release(dev->i2c);
return res;
}
@ -174,7 +168,8 @@ int ds1307_get_sqw_mode(const ds1307_t *dev)
int res;
i2c_acquire(dev->i2c);
res = i2c_read_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SQW_CTL, &mode);
res = i2c_read_reg(dev->i2c, DS1307_I2C_ADDRESS, DS1307_REG_SQW_CTL,
&mode, 0);
i2c_release(dev->i2c);
return (res < 0) ? res : (int)mode;
}
@ -190,9 +185,9 @@ static int _nvram_read(struct nvram *nvram, uint8_t *dst, uint32_t src,
}
i2c_acquire(dev->i2c);
res = i2c_read_regs(dev->i2c, DS1307_I2C_ADDRESS,
DS1307_REG_RAM_FIRST + src, dst, size);
DS1307_REG_RAM_FIRST + src, dst, size, 0);
i2c_release(dev->i2c);
return res;
return (res == 0) ? (int)size : -1;
}
static int _nvram_write(struct nvram *nvram, const uint8_t *src, uint32_t dst,
@ -206,9 +201,9 @@ static int _nvram_write(struct nvram *nvram, const uint8_t *src, uint32_t dst,
}
i2c_acquire(dev->i2c);
res = i2c_write_regs(dev->i2c, DS1307_I2C_ADDRESS,
DS1307_REG_RAM_FIRST + dst, src, size);
DS1307_REG_RAM_FIRST + dst, src, size, 0);
i2c_release(dev->i2c);
return res;
return (res == 0) ? (int)size : -1;
}
/** @} */