addw1

src/board/system76/addw1/board.c

@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+#include <arch/time.h>
+#include <board/battery.h>
+#include <board/board.h>
+#include <board/dgpu.h>
+#include <board/gctrl.h>
+#include <board/gpio.h>
+#include <board/kbc.h>
+#include <board/peci.h>
+#include <board/power.h>
+#include <common/debug.h>
+
+extern uint8_t main_cycle;
+
+void board_init(void) {
+    // Allow CPU to boot
+    gpio_set(&SB_KBCRST_N, true);
+    // Allow backlight to be turned on
+    gpio_set(&BKL_EN, true);
+    // Enable camera
+    gpio_set(&CCD_EN, true);
+    // Enable wireless
+    gpio_set(&BT_EN, true);
+    gpio_set(&WLAN_EN, true);
+    gpio_set(&WLAN_PWR_EN, true);
+    // Enable right USB port
+    gpio_set(&USB_PWR_EN_N, false);
+    // Assert SMI#, SCI#, and SWI#
+    gpio_set(&SCI_N, true);
+    gpio_set(&SMI_N, true);
+    gpio_set(&SWI_N, true);
+}
+
+// Set PL4 using PECI
+static int set_power_limit(uint8_t watts) {
+    return peci_wr_pkg_config(
+        60, // index
+        0, // param
+        ((uint32_t)watts) * 8
+    );
+}
+
+void board_on_ac(bool ac) {
+    uint8_t power_limit = ac ? POWER_LIMIT_AC : POWER_LIMIT_DC;
+    // Retry, timeout errors happen occasionally
+    for (int i = 0; i < 16; i++) {
+        int res = set_power_limit(power_limit);
+        DEBUG("set_power_limit %d = %d\n", power_limit, res);
+        if (res == 0x40) {
+            break;
+        } else if (res < 0) {
+            ERROR("set_power_limit failed: 0x%02X\n", -res);
+        } else {
+            ERROR("set_power_limit unknown response: 0x%02X\n", res);
+        }
+    }
+}
+
+void board_event(void) {
+    bool ac = !gpio_get(&ACIN_N);
+
+    static bool last_power_limit_ac = true;
+    // We don't use power_state because the latency needs to be low
+    if (gpio_get(&BUF_PLT_RST_N)) {
+        if (last_power_limit_ac != ac) {
+            board_on_ac(ac);
+            last_power_limit_ac = ac;
+        }
+    } else {
+        last_power_limit_ac = true;
+    }
+
+    if (main_cycle == 0) {
+        // Set keyboard LEDs
+        static uint8_t last_kbc_leds = 0;
+        if (kbc_leds != last_kbc_leds) {
+            gpio_set(&LED_SCROLL_N, (kbc_leds & 1) == 0);
+            gpio_set(&LED_NUM_N, (kbc_leds & 2) == 0);
+            gpio_set(&LED_CAP_N, (kbc_leds & 4) == 0);
+            last_kbc_leds = kbc_leds;
+        }
+    }
+}