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src/x86/up.c: get i2c numbering from pci information instead of hardcoding it

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Signed-off-by: Nicola Lunghi <nicola.lunghi@emutex.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Nicola Lunghi
2017-09-08 12:07:41 +01:00
committed by Brendan Le Foll
parent 2e2cd37cfa
commit 6fad8d9888
1 changed files with 19 additions and 8 deletions
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19
src/x86/up.c
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@@ -177,20 +177,31 @@ mraa_up_board()
mraa_up_set_pininfo(b, 40, "I2S_DOUT", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 21); mraa_up_set_pininfo(b, 40, "I2S_DOUT", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 21);
// Set number of i2c adaptors usable from userspace // Set number of i2c adaptors usable from userspace
b->i2c_bus_count = 2; b->i2c_bus_count = 0;
b->def_i2c_bus = 0;
int i2c_bus_num;
// Configure i2c adaptor #0 (default) // Configure i2c adaptor #0 (default)
// (For consistency with Raspberry Pi 2, use I2C1 as our primary I2C bus) // (For consistency with Raspberry Pi 2, use I2C1 as our primary I2C bus)
b->i2c_bus[0].bus_id = 1; i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "808622C1:01", ".");
if (i2c_bus_num != -1) {
int i = b->i2c_bus_count;
b->i2c_bus[i].bus_id = i2c_bus_num;
mraa_up_get_pin_index(b, "I2C1_SDA", (int*) &(b->i2c_bus[0].sda)); mraa_up_get_pin_index(b, "I2C1_SDA", (int*) &(b->i2c_bus[0].sda));
mraa_up_get_pin_index(b, "I2C1_SCL", (int*) &(b->i2c_bus[0].scl)); mraa_up_get_pin_index(b, "I2C1_SCL", (int*) &(b->i2c_bus[0].scl));
b->i2c_bus_count++;
}
// Configure i2c adaptor #1 // Configure i2c adaptor #1
// (normally reserved for accessing HAT EEPROM) // (normally reserved for accessing HAT EEPROM)
b->i2c_bus[1].bus_id = 0; i2c_bus_num = mraa_find_i2c_bus_pci("0000:00", "808622C1:00", ".");
if (i2c_bus_num != -1) {
int i = b->i2c_bus_count;
b->i2c_bus[i].bus_id = i2c_bus_num;
mraa_up_get_pin_index(b, "I2C0_SDA", (int*) &(b->i2c_bus[1].sda)); mraa_up_get_pin_index(b, "I2C0_SDA", (int*) &(b->i2c_bus[1].sda));
mraa_up_get_pin_index(b, "I2C0_SCL", (int*) &(b->i2c_bus[1].scl)); mraa_up_get_pin_index(b, "I2C0_SCL", (int*) &(b->i2c_bus[1].scl));
b->def_i2c_bus = 0; b->i2c_bus_count++;
}
// Configure PWM // Configure PWM
b->pwm_default_period = 500; b->pwm_default_period = 500;