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| author | Timofey Titovets <nefelim4ag@gmail.com> | 2025-04-09 00:35:00 +0200 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2025-04-17 11:41:49 -0400 |
| commit | a9b04e853610c216e8ca9db2949e8b658ed67439 (patch) | |
| tree | ca041b6054f03f8a4fbfbf101cb590e85435482b /src | |
| parent | 841adcfff759b7fc2a229a0627151600b8d1cc25 (diff) | |
| download | kutter-a9b04e853610c216e8ca9db2949e8b658ed67439.tar.gz kutter-a9b04e853610c216e8ca9db2949e8b658ed67439.tar.xz kutter-a9b04e853610c216e8ca9db2949e8b658ed67439.zip | |
i2c_software: pass pulse ticks from host
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
Diffstat (limited to 'src')
| -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 |