diff options
Diffstat (limited to 'src/i2c_software.c')
| -rw-r--r-- | src/i2c_software.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/src/i2c_software.c b/src/i2c_software.c index 805cef2d..01fce4c6 100644 --- a/src/i2c_software.c +++ b/src/i2c_software.c @@ -22,28 +22,21 @@ struct i2c_software { }; void -command_i2c_set_software_bus(uint32_t *args) +command_i2c_set_sw_bus(uint32_t *args) { struct i2cdev_s *i2c = i2cdev_oid_lookup(args[0]); struct i2c_software *is = alloc_chunk(sizeof(*is)); - uint32_t rate = args[3]; - is->ticks = CONFIG_CLOCK_FREQ / (100000 * 2); // 100KHz + is->ticks = args[3]; is->addr = (args[4] & 0x7f) << 1; // address format shifted is->scl_in = gpio_in_setup(args[1], 1); is->scl_out = gpio_out_setup(args[1], 1); is->sda_in = gpio_in_setup(args[2], 1); is->sda_out = gpio_out_setup(args[2], 1); - while (rate > 100000) { - rate = rate >> 1; - if (rate < 100000) - break; - is->ticks = is->ticks >> 1; - } i2cdev_set_software_bus(i2c, is); } -DECL_COMMAND(command_i2c_set_software_bus, - "i2c_set_software_bus oid=%c scl_pin=%u sda_pin=%u" - " rate=%u address=%u"); +DECL_COMMAND(command_i2c_set_sw_bus, + "i2c_set_sw_bus oid=%c scl_pin=%u sda_pin=%u" + " pulse_ticks=%u address=%u"); // The AVR micro-controllers require specialized timing #if CONFIG_MACH_AVR |