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espi: mec172x kbc: Enable custom configs

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Enable custom configs for KBC IBF event data and KBC
OBF callback from ISR.

Signed-off-by: Jay Vasanth <jay.vasanth@microchip.com>
This commit is contained in:
Jay Vasanth 2022-03-08 11:16:34 -05:00 • committed by Maureen Helm
commit 32bc328f8b
2 changed files with 65 additions and 2 deletions
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14
drivers/espi/Kconfig.xec_v2
View file

@ -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

53
drivers/espi/espi_mchp_xec_host_v2.c
View file

@ -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);
}