espi: mec172x kbc: Enable custom configs (32bc328f) · Commits · Wenxi XU / zephyr

drivers/espi/Kconfig.xec_v2

+14 −0

Original line number	Diff line number	Diff line
		@@ -154,3 +154,17 @@ config ESPI_PERIPHERAL_ACPI_EC_IBF_EVT_DATA
		to callback.

		endif #ESPI_XEC_V2

		if ESPI_PERIPHERAL_8042_KBC

		config ESPI_PERIPHERAL_KBC_IBF_EVT_DATA
		bool "KBC event data format in IBF"
		help
		Enable espi_evt_data_kbc format for encoding event in KBC IBF ISR

		config ESPI_PERIPHERAL_KBC_OBE_CBK
		bool "KBC OBE Callback"
		help
		Enable KBC OBE callback from OBE ISR

		endif #ESPI_PERIPHERAL_8042_KBC

drivers/espi/espi_mchp_xec_host_v2.c

+51 −2

Original line number	Diff line number	Diff line
		@@ -191,7 +191,27 @@ static void kbc0_ibf_isr(const struct device *dev)
		struct espi_xec_data *const data =
		(struct espi_xec_data *const)dev->data;


		#ifdef CONFIG_ESPI_PERIPHERAL_KBC_IBF_EVT_DATA
		/* Chrome solution */
		struct espi_event evt = {
		ESPI_BUS_PERIPHERAL_NOTIFICATION,
		ESPI_PERIPHERAL_8042_KBC,
		ESPI_PERIPHERAL_NODATA,
		};
		struct espi_evt_data_kbc *kbc_evt =
		(struct espi_evt_data_kbc *)&evt.evt_data;
		/*
		* Indicates if the host sent a command or data.
		* 0 = data
		* 1 = Command.
		*/
		kbc_evt->type = kbc_hw->EC_KBC_STS & MCHP_KBC_STS_CD ? 1 : 0;
		/* The data in KBC Input Buffer */
		kbc_evt->data = kbc_hw->EC_DATA;
		/* KBC Input Buffer Full event */
		kbc_evt->evt = HOST_KBC_EVT_IBF;
		#else
		/* Windows solution */
		/* The high byte contains information from the host,
		* and the lower byte speficies if the host sent
		* a command or data. 1 = Command.
		@@ -205,7 +225,7 @@ static void kbc0_ibf_isr(const struct device *dev)
		.evt_details = ESPI_PERIPHERAL_8042_KBC,
		.evt_data = isr_data
		};

		#endif
		espi_send_callbacks(&data->callbacks, dev, evt);

		mchp_xec_ecia_info_girq_src_clr(xec_kbc0_cfg.ibf_ecia_info);
		@@ -213,8 +233,37 @@ static void kbc0_ibf_isr(const struct device *dev)

		static void kbc0_obe_isr(const struct device *dev)
		{
		#ifdef CONFIG_ESPI_PERIPHERAL_KBC_OBE_CBK
		/* Chrome solution */
		struct espi_xec_data *const data =
		(struct espi_xec_data *const)dev->data;

		struct espi_event evt = {
		ESPI_BUS_PERIPHERAL_NOTIFICATION,
		ESPI_PERIPHERAL_8042_KBC,
		ESPI_PERIPHERAL_NODATA,
		};
		struct espi_evt_data_kbc *kbc_evt =
		(struct espi_evt_data_kbc *)&evt.evt_data;

		/* Disable KBC OBE interrupt first */
		mchp_xec_ecia_info_girq_src_dis(xec_kbc0_cfg.obe_ecia_info);

		/*
		* Notify application that host already read out data. The application
		* might need to clear status register via espi_api_lpc_write_request()
		* with E8042_CLEAR_FLAG opcode in callback.
		*/
		kbc_evt->evt = HOST_KBC_EVT_OBE;
		kbc_evt->data = 0;
		kbc_evt->type = 0;

		espi_send_callbacks(&data->callbacks, dev, evt);
		#else
		/* Windows solution */
		/* disable and clear GIRQ interrupt and status */
		mchp_xec_ecia_info_girq_src_dis(xec_kbc0_cfg.obe_ecia_info);
		#endif
		mchp_xec_ecia_info_girq_src_clr(xec_kbc0_cfg.obe_ecia_info);
		}

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