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edison: added i2c support on bus 6

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Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
This commit is contained in:
Thomas Ingleby
2014-07-24 14:02:53 +01:00
committed by Brendan Le Foll
parent 57bd8d5b5d
commit 995565b2e1
1 changed files with 53 additions and 0 deletions
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53
src/intel_edison_fab_c.c
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@@ -119,6 +119,44 @@ mraa_intel_edison_gpio_init_post(mraa_gpio_context dev)
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edison_i2c_init_pre(unsigned int bus)
{
if(bus != 6) {
fprintf(stderr, "Edison: You can use that bus, ERR\n");
return MRAA_ERROR_INVALID_RESOURCE;
}
mraa_gpio_write(tristate, 0);
mraa_gpio_context io18_gpio = mraa_gpio_init_raw(14);
mraa_gpio_context io19_gpio = mraa_gpio_init_raw(165);
mraa_gpio_dir(io18_gpio, MRAA_GPIO_IN);
mraa_gpio_dir(io19_gpio, MRAA_GPIO_IN);
mraa_gpio_close(io18_gpio);
mraa_gpio_close(io19_gpio);
mraa_gpio_context io18_enable = mraa_gpio_init_raw(236);
mraa_gpio_context io19_enable = mraa_gpio_init_raw(237);
mraa_gpio_dir(io18_enable, MRAA_GPIO_OUT);
mraa_gpio_dir(io19_enable, MRAA_GPIO_OUT);
mraa_gpio_write(io18_enable, 0);
mraa_gpio_write(io19_enable, 0);
mraa_gpio_close(io18_enable);
mraa_gpio_close(io19_enable);
mraa_gpio_context io18_pullup = mraa_gpio_init_raw(212);
mraa_gpio_context io19_pullup = mraa_gpio_init_raw(213);
mraa_gpio_dir(io18_pullup, MRAA_GPIO_IN);
mraa_gpio_dir(io19_pullup, MRAA_GPIO_IN);
mraa_gpio_close(io18_pullup);
mraa_gpio_close(io19_pullup);
mraa_intel_edison_pinmode_change(28, 1);
mraa_intel_edison_pinmode_change(27, 1);
mraa_gpio_write(tristate, 1);
return MRAA_SUCCESS;
}
mraa_board_t*
mraa_intel_edison_fab_c()
{
@@ -133,6 +171,7 @@ mraa_intel_edison_fab_c()
advance_func->gpio_dir_pre = &mraa_intel_edison_gpio_dir_pre;
advance_func->gpio_init_post = &mraa_intel_edison_gpio_init_post;
advance_func->gpio_dir_post = &mraa_intel_edison_gpio_dir_post;
advance_func->i2c_init_pre = &mraa_intel_edison_i2c_init_pre;
b->pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t)*MRAA_INTEL_EDISON_PINCOUNT);
@@ -240,6 +279,20 @@ mraa_intel_edison_fab_c()
b->pins[13].gpio.mux[0].pin = 243;
b->pins[13].gpio.mux[0].value = 0;
strncpy(b->pins[18].name, "A4", 8);
b->pins[18].capabilites = (mraa_pincapabilities_t) {1,0,0,0,0,1,0};
b->pins[18].i2c.pinmap = 1;
b->pins[18].i2c.mux_total = 1;
b->pins[18].i2c.mux[0].pin = 204;
b->pins[18].i2c.mux[0].value = 0;
strncpy(b->pins[19].name, "A5", 8);
b->pins[19].capabilites = (mraa_pincapabilities_t) {1,0,0,0,0,1,0};
b->pins[19].i2c.pinmap = 1;
b->pins[19].i2c.mux_total = 1;
b->pins[19].i2c.mux[0].pin = 205;
b->pins[19].i2c.mux[0].value = 0;
//BUS DEFINITIONS
b->i2c_bus_count = 9;
b->def_i2c_bus = 6;