27 bool twai_hal_init(twai_hal_context_t *hal_ctx)  in twai_hal_init()  argument
30     hal_ctx->dev = &TWAI;  in twai_hal_init()
31     hal_ctx->state_flags = 0;  in twai_hal_init()
33     twai_ll_enter_reset_mode(hal_ctx->dev);  in twai_hal_init()
34 …if (!twai_ll_is_in_reset_mode(hal_ctx->dev)) {    //Must enter reset mode to write to config regis…  in twai_hal_init()
38 …twai_ll_enable_extended_reg_layout(hal_ctx->dev);        //Changes the address layout of the regis…  in twai_hal_init()
40     twai_ll_set_mode(hal_ctx->dev, TWAI_MODE_LISTEN_ONLY);    //Freeze REC by changing to LOM mode  in twai_hal_init()
42     twai_ll_set_tec(hal_ctx->dev, TWAI_HAL_INIT_TEC);  in twai_hal_init()
43     twai_ll_set_rec(hal_ctx->dev, TWAI_HAL_INIT_REC);  in twai_hal_init()
44     twai_ll_set_err_warn_lim(hal_ctx->dev, TWAI_HAL_INIT_EWL);    //Set default value of for EWL  in twai_hal_init()
48 void twai_hal_deinit(twai_hal_context_t *hal_ctx)  in twai_hal_deinit()  argument
51     (void) twai_ll_get_and_clear_intrs(hal_ctx->dev);  in twai_hal_deinit()
52     twai_ll_set_enabled_intrs(hal_ctx->dev, 0);  in twai_hal_deinit()
53     twai_ll_clear_arb_lost_cap(hal_ctx->dev);  in twai_hal_deinit()
54     twai_ll_clear_err_code_cap(hal_ctx->dev);  in twai_hal_deinit()
55     hal_ctx->dev = NULL;  in twai_hal_deinit()
58 void twai_hal_configure(twai_hal_context_t *hal_ctx, const twai_timing_config_t *t_config, const tw…  in twai_hal_configure()  argument
61 …twai_ll_set_bus_timing(hal_ctx->dev, t_config->brp, t_config->sjw, t_config->tseg_1, t_config->tse…  in twai_hal_configure()
62 …twai_ll_set_acc_filter(hal_ctx->dev, f_config->acceptance_code, f_config->acceptance_mask, f_confi…  in twai_hal_configure()
63     twai_ll_set_clkout(hal_ctx->dev, clkout_divider);  in twai_hal_configure()
64     twai_ll_set_enabled_intrs(hal_ctx->dev, intr_mask);  in twai_hal_configure()
65     (void) twai_ll_get_and_clear_intrs(hal_ctx->dev);    //Clear any latched interrupts  in twai_hal_configure()
70 void twai_hal_start(twai_hal_context_t *hal_ctx, twai_mode_t mode)  in twai_hal_start()  argument
72     twai_ll_set_mode(hal_ctx->dev, mode);                //Set operating mode  in twai_hal_start()
73     (void) twai_ll_get_and_clear_intrs(hal_ctx->dev);    //Clear any latched interrupts  in twai_hal_start()
74     TWAI_HAL_SET_BITS(hal_ctx->state_flags, TWAI_HAL_STATE_FLAG_RUNNING);  in twai_hal_start()
75     twai_ll_exit_reset_mode(hal_ctx->dev);  in twai_hal_start()
78 void twai_hal_stop(twai_hal_context_t *hal_ctx)  in twai_hal_stop()  argument
80     twai_ll_enter_reset_mode(hal_ctx->dev);  in twai_hal_stop()
81     (void) twai_ll_get_and_clear_intrs(hal_ctx->dev);  in twai_hal_stop()
82     twai_ll_set_mode(hal_ctx->dev, TWAI_MODE_LISTEN_ONLY);    //Freeze REC by changing to LOM mode  in twai_hal_stop()
84 …TWAI_HAL_CLEAR_BITS(hal_ctx->state_flags, TWAI_HAL_STATE_FLAG_TX_BUFF_OCCUPIED | TWAI_HAL_STATE_FL…  in twai_hal_stop()