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Diffstat (limited to 'src/mainboard/lenovo/g505s/smihandler.c')
-rw-r--r--src/mainboard/lenovo/g505s/smihandler.c106
1 files changed, 0 insertions, 106 deletions
diff --git a/src/mainboard/lenovo/g505s/smihandler.c b/src/mainboard/lenovo/g505s/smihandler.c
deleted file mode 100644
index fa81b280ee..0000000000
--- a/src/mainboard/lenovo/g505s/smihandler.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-/*
- * SMI handler -- mostly takes care of SMIs from the EC
- */
-
-#include <arch/io.h>
-#include <console/console.h>
-#include <cpu/x86/smm.h>
-#include <ec/compal/ene932/ec.h>
-#include <southbridge/amd/agesa/hudson/hudson.h>
-#include <southbridge/amd/agesa/hudson/smi.h>
-
-#include "ec.h"
-
-#define ACPI_PM1_CNT_SLEEP(state) ((1 << 13) | (state & 0x7) << 10)
-
-enum sleep_states {
- S0 = 0,
- S1 = 1,
- S3 = 3,
- S4 = 4,
- S5 = 5,
-};
-
-enum ec_smi_event {
- EC_SMI_EVENT_IDLE = 0x80,
- EC_SMI_BATTERY_LOW = 0xb3,
-};
-
-/* Tell EC to operate in APM mode. Events generate SMIs instead of SCIs */
-static void ec_enter_apm_mode(void)
-{
- ec_kbc_write_cmd(0x59);
- ec_kbc_write_ib(0xE9);
-}
-/* Tell EC to operate in ACPI mode, thus generating SCIs on events, not SMIs */
-static void ec_enter_acpi_mode(void)
-{
- ec_kbc_write_cmd(0x59);
- ec_kbc_write_ib(0xE8);
-}
-
-static uint8_t ec_get_smi_event(void)
-{
- ec_kbc_write_cmd(0x56);
- return ec_kbc_read_ob();
-}
-
-static void ec_process_smi(uint8_t src)
-{
- /* Reading the SMI source satisfies the EC in terms of responding to
- * the event, regardless of whether we take an action or not.
- */
-
- switch (src) {
- case EC_SMI_BATTERY_LOW:
- printk(BIOS_DEBUG, "Battery low. Shutting down\n");
- outl(ACPI_PM1_CNT_SLEEP(S5), ACPI_PM1_CNT_BLK);
- break;
- default:
- printk(BIOS_DEBUG, "EC_SMI event 0x%x\n", src);
- }
-}
-
-static void handle_ec_smi(void)
-{
- uint8_t src;
-
- while ((src = ec_get_smi_event()) != EC_SMI_EVENT_IDLE)
- ec_process_smi(src);
-}
-
-static void handle_lid_smi(void)
-{
- /* Only triggered in non-ACPI mode on lid close. */
- outl(ACPI_PM1_CNT_SLEEP(S4), ACPI_PM1_CNT_BLK);
-}
-
-int mainboard_smi_apmc(uint8_t data)
-{
- switch (data) {
- case ACPI_SMI_CMD_ENABLE:
- printk(BIOS_DEBUG, "Enable ACPI mode\n");
- ec_enter_acpi_mode();
- hudson_disable_gevent_smi(EC_LID_GEVENT);
- break;
- case ACPI_SMI_CMD_DISABLE:
- printk(BIOS_DEBUG, "Disable ACPI mode\n");
- ec_enter_apm_mode();
- hudson_configure_gevent_smi(EC_LID_GEVENT, SMI_MODE_SMI,
- SMI_LVL_LOW);
- break;
- default:
- printk(BIOS_DEBUG, "Unhandled ACPI command: 0x%x\n", data);
- }
- return 0;
-}
-
-void mainboard_smi_gpi(uint32_t gpi_sts)
-{
- if (gpi_sts & (1 << EC_SMI_GEVENT))
- handle_ec_smi();
- if (gpi_sts & (1 << EC_LID_GEVENT))
- handle_lid_smi();
-}