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Support for SCI hotkeys

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This commit is contained in:
Jeremy Soller
2019-12-02 14:56:11 -07:00
parent dc19bf1248
commit 1c73751ef6
7 changed files with 87 additions and 27 deletions
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26
src/board/system76/galp3-c/pmc.c
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@@ -2,8 +2,7 @@
#include <board/pmc.h>
#include <board/scratch.h>
#include <common/debug.h>
uint8_t pmc_sci_queue = 0;
#include <ec/gpio.h>
void pmc_init(void) {
*(PMC_1.control) = 0x41;
@@ -19,6 +18,22 @@ enum PmcState {
PMC_STATE_ACPI_WRITE_ADDR,
};
static uint8_t pmc_sci_queue = 0;
static struct Gpio __code SCI_N = GPIO(D, 4);
bool pmc_sci(struct Pmc * pmc, uint8_t sci) {
bool update = pmc_sci_queue == 0;
// Set SCI queue if possible
if (update) pmc_sci_queue = sci;
// Set SCI pending bit
uint8_t sts = pmc_status(pmc);
pmc_set_status(pmc, sts | (1 << 5));
// Start SCI interrupt
gpio_set(&SCI_N, false);
*(SCI_N.control) = 0x40;
return update;
}
void pmc_event(struct Pmc * pmc) {
static enum PmcState state = PMC_STATE_DEFAULT;
static uint8_t state_data[2] = {0, 0};
@@ -51,10 +66,13 @@ void pmc_event(struct Pmc * pmc) {
break;
case 0x84:
DEBUG(" SCI queue\n");
// Clear SCI event pending bit
// Clear SCI pending bit
pmc_set_status(pmc, sts & ~(1 << 5));
// Send SCI event
// Send SCI queue
pmc_write(pmc, pmc_sci_queue, PMC_TIMEOUT);
// Stop SCI interrupt
*(SCI_N.control) = 0x80;
gpio_set(&SCI_N, true);
// Clear SCI queue
pmc_sci_queue = 0;
break;