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Provide battery and peci info through acpi pmc interface

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This commit is contained in:
Jeremy Soller
2019-11-18 20:34:02 -07:00
parent 788fa5ee52
commit d928ef8a9a
7 changed files with 168 additions and 80 deletions
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79
src/board/system76/galp3-c/main.c
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@ -8,6 +8,7 @@
#include <board/gctrl.h>
#include <board/kbc.h>
#include <board/kbscan.h>
#include <board/peci.h>
#include <board/pmc.h>
#include <board/ps2.h>
#include <board/pwm.h>
@ -54,83 +55,6 @@ void init(void) {
GCR2 |= (1 << 4);
}
// PECI information can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/design-guides/core-i7-lga-2011-guide.pdf
void peci_event(void) {
static volatile uint8_t __xdata __at(0x3000) HOSTAR;
static volatile uint8_t __xdata __at(0x3001) HOCTLR;
static volatile uint8_t __xdata __at(0x3002) HOCMDR;
static volatile uint8_t __xdata __at(0x3003) HOTRADDR;
static volatile uint8_t __xdata __at(0x3004) HOWRLR;
static volatile uint8_t __xdata __at(0x3005) HORDLR;
static volatile uint8_t __xdata __at(0x3006) HOWRDR;
static volatile uint8_t __xdata __at(0x3007) HORDDR;
static volatile uint8_t __xdata __at(0x3008) HOCTL2R;
static volatile uint8_t __xdata __at(0x3009) RWFCSV;
// Wait for completion
while (HOSTAR & 1) {}
// Clear status
HOSTAR = HOSTAR;
// Enable PECI, clearing data fifo's
HOCTLR = (1 << 5) | (1 << 3);
// Set address to default
HOTRADDR = 0x30;
// Set write length
HOWRLR = 1;
// Set read length
HORDLR = 2;
// Set command
HOCMDR = 1;
// Start transaction
HOCTLR |= 1;
// Wait for completion
while (HOSTAR & 1) {}
if (HOSTAR & (1 << 1)) {
// Use result if finished successfully
uint8_t low = HORDDR;
uint8_t high = HORDDR;
int16_t offset = ((int16_t)high << 8) | (int16_t)low;
// Tjunction = 100C for i7-8565U (and probably the same for all WHL-U)
#define T_JUNCTION 10000
int16_t temp = T_JUNCTION + offset;
// Set fan based on temp, adapted from
// https://github.com/pop-os/system76-power/blob/master/src/fan.rs#L218
uint8_t duty = 0;
if (temp >= 9000) {
// 90C = 100%
duty = 255;
} else if (temp >= 8000) {
// 80C = 50%
duty = 128;
} else if (temp >= 7500) {
// 75C = 45%
duty = 115;
} else if (temp >= 6500) {
// 65C = 40%
duty = 102;
} else if (temp >= 5500) {
// 55C = 35%
duty = 90;
} else if (temp >= 4500) {
// 45C = 30%
duty = 77;
}
if (duty != DCR2) {
DCR2 = duty;
DEBUG("PECI offset=%d, temp=%d = %d\n", offset, temp, duty);
}
} else {
// Default to 50% if there is an error
DCR2 = 128;
}
}
void ac_adapter() {
static struct Gpio __code ACIN_N = GPIO(B, 6);
static struct Gpio __code LED_ACIN = GPIO(C, 7);
@ -451,6 +375,7 @@ void main(void) {
for(;;) {
peci_event();
ac_adapter();
battery_event();
power_button();
kbscan_event();
touchpad_event(&PS2_3);