arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2025-03-27 13:35:44 +00:00
Code Issues Releases Wiki Activity

feat(core): stm32u5 i2c driver - support up to 5 i2c busses

Browse Source 
[no changelog]
This commit is contained in:
tychovrahe 2025-03-14 06:54:24 +01:00
parent 08188f1b2f
commit 9992de430c
1 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
core/embed/io/i2c_bus/stm32u5/i2c_bus.c
View File

@ -132,6 +132,21 @@ static const i2c_bus_def_t g_i2c_bus_def[I2C_COUNT] = {
.guard_time = I2C_INSTANCE_3_GUARD_TIME, .guard_time = I2C_INSTANCE_3_GUARD_TIME,
}, },
#endif #endif
#ifdef I2C_INSTANCE_4
{
.regs = I2C_INSTANCE_4,
.scl_port = I2C_INSTANCE_4_SCL_PORT,
.sda_port = I2C_INSTANCE_4_SDA_PORT,
.scl_pin = I2C_INSTANCE_4_SCL_PIN,
.sda_pin = I2C_INSTANCE_4_SDA_PIN,
.pin_af = I2C_INSTANCE_4_PIN_AF,
.reset_reg = I2C_INSTANCE_4_RESET_REG,
.reset_bit = I2C_INSTANCE_4_RESET_BIT,
.ev_irq = I2C_INSTANCE_4_EV_IRQn,
.er_irq = I2C_INSTANCE_4_ER_IRQn,
.guard_time = I2C_INSTANCE_4_GUARD_TIME,
},
#endif
}; };
struct i2c_bus { struct i2c_bus {
@ -295,6 +310,13 @@ static bool i2c_bus_init(i2c_bus_t* bus, int bus_index) {
I2C_INSTANCE_3_SCL_CLK_EN(); I2C_INSTANCE_3_SCL_CLK_EN();
I2C_INSTANCE_3_SDA_CLK_EN(); I2C_INSTANCE_3_SDA_CLK_EN();
break; break;
#endif
#ifdef I2C_INSTANCE_4
case 4:
I2C_INSTANCE_4_CLK_EN();
I2C_INSTANCE_4_SCL_CLK_EN();
I2C_INSTANCE_4_SDA_CLK_EN();
break;
#endif #endif
default: default:
goto cleanup; goto cleanup;
@ -959,4 +981,22 @@ void I2C_INSTANCE_3_ER_IRQHandler(void) {
} }
#endif #endif
#ifdef I2C_INSTANCE_4
void I2C_INSTANCE_4_EV_IRQHandler(void) {
IRQ_LOG_ENTER();
mpu_mode_t mpu_mode = mpu_reconfig(MPU_MODE_DEFAULT);
i2c_bus_ev_handler(&g_i2c_bus_driver[4]);
mpu_restore(mpu_mode);
IRQ_LOG_EXIT();
}
void I2C_INSTANCE_4_ER_IRQHandler(void) {
IRQ_LOG_ENTER();
mpu_mode_t mpu_mode = mpu_reconfig(MPU_MODE_DEFAULT);
i2c_bus_er_handler(&g_i2c_bus_driver[4]);
mpu_restore(mpu_mode);
IRQ_LOG_EXIT();
}
#endif
#endif // KERNEL_MODE #endif // KERNEL_MODE