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intel_gt_tuchuck.c: Use new mraa_find_i2c_bus_pci to find i2c busses

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2016-10-27 13:23:30 +00:00
parent 9d365ce0d6
commit 4a33aca8fd
1 changed files with 69 additions and 14 deletions
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83
src/x86/intel_gt_tuchuck.c
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@@ -62,22 +62,77 @@ mraa_gt_tuchuck_board()
b->pwm_max_period = 218453;
b->pwm_min_period = 1;
b->i2c_bus_count = 3;
b->i2c_bus[0].bus_id = 0;
b->i2c_bus[0].sda = 11;
b->i2c_bus[0].scl = 13;
b->i2c_bus_count = 0;
if (mraa_find_i2c_bus("designware", 5) != 5) {
b->i2c_bus[1].bus_id = 9;
b->i2c_bus[2].bus_id = 10;
} else {
b->i2c_bus[1].bus_id = 5;
b->i2c_bus[2].bus_id = 6;
int i2c_bus_num = -1;
i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "0000:00:16.0", "i2c_designware.0");
if (i2c_bus_num != -1) {
b->i2c_bus[0].bus_id = i2c_bus_num;
b->i2c_bus[0].sda = 11;
b->i2c_bus[0].scl = 13;
b->i2c_bus_count++;
}
i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "0000:00:17.1", "i2c_designware.5");
if (i2c_bus_num != -1) {
b->i2c_bus[b->i2c_bus_count].bus_id = i2c_bus_num;
b->i2c_bus[b->i2c_bus_count].sda = 15;
b->i2c_bus[b->i2c_bus_count].scl = 17;
b->i2c_bus_count++;
}
i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "0000:00:17.2", "i2c_designware.6");
if (i2c_bus_num != -1) {
b->i2c_bus[b->i2c_bus_count].bus_id = i2c_bus_num;
b->i2c_bus[b->i2c_bus_count].sda = 19;
b->i2c_bus[b->i2c_bus_count].scl = 21;
b->i2c_bus_count++;
}
i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "0000:00:16.1", "i2c_designware.1");
if (i2c_bus_num != -1) {
b->i2c_bus[b->i2c_bus_count].bus_id = i2c_bus_num;
b->i2c_bus[b->i2c_bus_count].sda = 71;
b->i2c_bus[b->i2c_bus_count].scl = 73;
b->i2c_bus_count++;
}
i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "0000:00:16.2", "i2c_designware.2");
if (i2c_bus_num != -1) {
b->i2c_bus[b->i2c_bus_count].bus_id = i2c_bus_num;
b->i2c_bus[b->i2c_bus_count].sda = 75;
b->i2c_bus[b->i2c_bus_count].scl = 77;
b->i2c_bus_count++;
}
/**
* Old i2c detection method, very poor, avoid, but keep as fallback if
* above failed We check for /dev/i2c-0 because we can assume i2c-dev is
* not loaded if we haven't enumerated a single i2c-dev node
*/
if (b->i2c_bus_count == 0) {
if (mraa_file_exist("/dev/i2c-0")) {
syslog(LOG_WARNING, "joule: Failed to detect i2c buses, making wild assumptions!");
b->i2c_bus_count = 3;
b->i2c_bus[0].bus_id = 0;
b->i2c_bus[0].sda = 11;
b->i2c_bus[0].scl = 13;
if (mraa_find_i2c_bus("designware", 5) != 5) {
b->i2c_bus[1].bus_id = 9;
b->i2c_bus[2].bus_id = 10;
} else {
b->i2c_bus[1].bus_id = 5;
b->i2c_bus[2].bus_id = 6;
}
b->i2c_bus[1].sda = 15;
b->i2c_bus[1].scl = 17;
b->i2c_bus[2].sda = 19;
b->i2c_bus[2].scl = 21;
} else {
syslog(LOG_WARNING, "joule: Failed to detect any i2c buses, is i2c-dev loaded?");
}
}
b->i2c_bus[1].sda = 15;
b->i2c_bus[1].scl = 17;
b->i2c_bus[2].sda = 19;
b->i2c_bus[2].scl = 21;
b->def_i2c_bus = b->i2c_bus[0].bus_id;