gluon/patches/openwrt/0046-ar71xx-WNR2200-enable-control-of-all-LEDs-and-buttons.patch

From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sun, 29 May 2016 11:50:03 +0200
Subject: ar71xx: WNR2200: enable control of all LEDs and buttons

This patch provides full GPIO support for WNR2200 (LEDs and buttons).
It exposes all LEDs to operating system, including Ethernet ones.

Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>

Backport of r49101

diff --git a/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds b/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
index d7dc9a1..337000c 100644
--- a/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
+++ b/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
@@ -592,6 +592,21 @@ wnr2000-v4)
 	ucidef_set_led_usbdev "usb" "USB" "netgear:amber:status" "1-1"
 	;;
 
+wnr2200)
+	ucidef_set_led_netdev "wan-amber" "WAN (amber)" "netgear:amber:wan" "eth0"
+	ucidef_set_led_default "wan-green" "WAN (green)" "netgear:green:wan" "0"
+	ucidef_set_led_netdev "wlan" "WLAN" "netgear:blue:wlan" "wlan0"
+	ucidef_set_led_switch "lan1green" "LAN1 (green)" "netgear:green:lan1" "switch0" "0x02" "0x04"
+	ucidef_set_led_switch "lan2green" "LAN2 (green)" "netgear:green:lan2" "switch0" "0x04" "0x04"
+	ucidef_set_led_switch "lan3green" "LAN3 (green)" "netgear:green:lan3" "switch0" "0x08" "0x04"
+	ucidef_set_led_switch "lan4green" "LAN4 (green)" "netgear:green:lan4" "switch0" "0x10" "0x04"
+	ucidef_set_led_switch "lan1amber" "LAN1 (amber)" "netgear:amber:lan1" "switch0" "0x02" "0x02"
+	ucidef_set_led_switch "lan2amber" "LAN2 (amber)" "netgear:amber:lan2" "switch0" "0x04" "0x02"
+	ucidef_set_led_switch "lan3amber" "LAN3 (amber)" "netgear:amber:lan3" "switch0" "0x08" "0x02"
+	ucidef_set_led_switch "lan4amber" "LAN4 (amber)" "netgear:amber:lan4" "switch0" "0x10" "0x02"
+	ucidef_set_led_usbdev "usb" "USB" "netgear:green:usb" "1-1"
+	;;
+
 wpn824n)
 	ucidef_set_led_netdev "wan-amber" "WAN (amber)" "netgear:amber:wan" "eth0"
 	ucidef_set_led_wlan "wlan" "WLAN" "netgear:blue:wlan" "phy0tpt"
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c
index 37ffc4c..258d254 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c
@@ -15,6 +15,8 @@
 #include <linux/kernel.h> /* for max() macro */
 
 #include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h> /* needed to disable switch LEDs */
+#include "common.h" /* needed to disable switch LEDs */
 
 #include "dev-ap9x-pci.h"
 #include "dev-eth.h"
@@ -24,21 +26,28 @@
 #include "dev-usb.h"
 #include "machtypes.h"
 
+/* WNR2200 - connected through AR7241 */
 #define WNR2200_GPIO_LED_LAN2_AMBER	0
 #define WNR2200_GPIO_LED_LAN4_AMBER	1
-#define WNR2200_GPIO_LED_WPS		5
-#define WNR2200_GPIO_LED_WAN_GREEN	7
-#define WNR2200_GPIO_LED_USB		8
+#define WNR2200_GPIO_LED_LAN1_AMBER	6 /* AR724X_GPIO_FUNC_JTAG_DISABLE */
+#define WNR2200_GPIO_LED_WPS_GREEN	7 /* AR724X_GPIO_FUNC_JTAG_DISABLE */
+#define WNR2200_GPIO_LED_USB_GREEN	8 /* AR724X_GPIO_FUNC_JTAG_DISABLE */
 #define WNR2200_GPIO_LED_LAN3_AMBER	11
 #define WNR2200_GPIO_LED_WAN_AMBER	12
-#define WNR2200_GPIO_LED_LAN1_GREEN	13
-#define WNR2200_GPIO_LED_LAN2_GREEN	14
-#define WNR2200_GPIO_LED_LAN3_GREEN	15
-#define WNR2200_GPIO_LED_LAN4_GREEN	16
-#define WNR2200_GPIO_LED_PWR_AMBER	21
-#define WNR2200_GPIO_LED_PWR_GREEN	22
-#define WNR2200_GPIO_USB_5V		4
-#define WNR2200_GPIO_USB_POWER		24
+#define WNR2200_GPIO_LED_LAN1_GREEN	13 /* AR724X_..._ETH_SWITCH_LED0 */
+#define WNR2200_GPIO_LED_LAN2_GREEN	14 /* AR724X_..._ETH_SWITCH_LED1 */
+#define WNR2200_GPIO_LED_LAN3_GREEN	15 /* AR724X_..._ETH_SWITCH_LED2 */
+#define WNR2200_GPIO_LED_LAN4_GREEN	16 /* AR724X_..._ETH_SWITCH_LED3 */
+#define WNR2200_GPIO_LED_WAN_GREEN	17 /* AR724X_..._ETH_SWITCH_LED4 */
+
+/* WNR2200 - connected through AR9287 */
+#define WNR2200_GPIO_WMAC_LED_WLAN_BLUE		0
+#define WNR2200_GPIO_WMAC_LED_TEST_AMBER	1
+#define WNR2200_GPIO_WMAC_LED_POWER_GREEN	2
+#define WNR2200_GPIO_WMAC_BTN_RFKILL		3
+#define WNR2200_GPIO_WMAC_USB_5V		4
+#define WNR2200_GPIO_WMAC_BTN_WPS		5
+#define WNR2200_GPIO_WMAC_BTN_RESET		6
 
 #define WNR2200_KEYS_POLL_INTERVAL	20 /* msecs */
 #define WNR2200_KEYS_DEBOUNCE_INTERVAL	(3 * WNR2200_KEYS_POLL_INTERVAL)
@@ -50,30 +59,22 @@
 
 static struct gpio_led wnr2200_leds_gpio[] __initdata = {
 	{
-		.name		= "netgear:amber:lan2",
-		.gpio		= WNR2200_GPIO_LED_LAN2_AMBER,
-		.active_low	= 1,
-	}, {
-		.name		= "netgear:amber:lan4",
-		.gpio		= WNR2200_GPIO_LED_LAN4_AMBER,
-		.active_low	= 1,
-	}, {
-		.name		= "netgear:green:wps",
-		.gpio		= WNR2200_GPIO_LED_WPS,
-		.active_low	= 1,
-	}, {
-		.name		= "netgear:green:wan",
-		.gpio		= WNR2200_GPIO_LED_WAN_GREEN,
+		.name		= "netgear:amber:lan1",
+		.gpio		= WNR2200_GPIO_LED_LAN1_AMBER,
 		.active_low	= 1,
 	}, {
-		.name		= "netgear:green:usb",
-		.gpio		= WNR2200_GPIO_LED_USB,
+		.name		= "netgear:amber:lan2",
+		.gpio		= WNR2200_GPIO_LED_LAN2_AMBER,
 		.active_low	= 1,
 	}, {
 		.name		= "netgear:amber:lan3",
 		.gpio		= WNR2200_GPIO_LED_LAN3_AMBER,
 		.active_low	= 1,
 	}, {
+		.name		= "netgear:amber:lan4",
+		.gpio		= WNR2200_GPIO_LED_LAN4_AMBER,
+		.active_low	= 1,
+	}, {
 		.name		= "netgear:amber:wan",
 		.gpio		= WNR2200_GPIO_LED_WAN_AMBER,
 		.active_low	= 1,
@@ -94,12 +95,56 @@ static struct gpio_led wnr2200_leds_gpio[] __initdata = {
 		.gpio		= WNR2200_GPIO_LED_LAN4_GREEN,
 		.active_low	= 1,
 	}, {
-		.name		= "netgear:amber:power",
-		.gpio		= WNR2200_GPIO_LED_PWR_AMBER,
+		.name		= "netgear:green:usb",
+		.gpio		= WNR2200_GPIO_LED_USB_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "netgear:green:wan",
+		.gpio		= WNR2200_GPIO_LED_WAN_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "netgear:green:wps",
+		.gpio		= WNR2200_GPIO_LED_WPS_GREEN,
+		.active_low	= 1,
+	}
+};
+
+static const char *wnr2200_wmac_led_name = "netgear:blue:wlan";
+
+static struct gpio_led wnr2200_wmac_leds_gpio[] = {
+	{
+		.name		= "netgear:amber:test",
+		.gpio		= WNR2200_GPIO_WMAC_LED_TEST_AMBER,
 		.active_low	= 1,
 	}, {
 		.name		= "netgear:green:power",
-		.gpio		= WNR2200_GPIO_LED_PWR_GREEN,
+		.gpio		= WNR2200_GPIO_WMAC_LED_POWER_GREEN,
+		.active_low	= 1,
+		.default_state	= LEDS_GPIO_DEFSTATE_ON,
+	}
+};
+
+static struct gpio_keys_button wnr2200_wmac_keys_gpio[] = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = WNR2200_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= WNR2200_GPIO_WMAC_BTN_RESET,
+		.active_low	= 1,
+	}, {
+		.desc		= "rfkill",
+		.type		= EV_KEY,
+		.code		= KEY_RFKILL,
+		.debounce_interval = WNR2200_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= WNR2200_GPIO_WMAC_BTN_RFKILL,
+		.active_low	= 1,
+	}, {
+		.desc		= "wps",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = WNR2200_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= WNR2200_GPIO_WMAC_BTN_WPS,
 		.active_low	= 1,
 	}
 };
@@ -139,14 +184,32 @@ static void __init wnr2200_setup(void)
 	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
 	u8 wlan_mac_addr[6];
 
+	/*
+	 * Disable JTAG to use all AR724X GPIO LEDs. Disable CLKs.
+	 * Allow OS to control all link LEDs.
+	 */
+	ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE |
+				  AR724X_GPIO_FUNC_UART_EN,
+				  AR724X_GPIO_FUNC_CLK_OBS1_EN |
+				  AR724X_GPIO_FUNC_CLK_OBS2_EN |
+				  AR724X_GPIO_FUNC_CLK_OBS3_EN |
+				  AR724X_GPIO_FUNC_CLK_OBS4_EN |
+				  AR724X_GPIO_FUNC_CLK_OBS5_EN |
+				  AR724X_GPIO_FUNC_GE0_MII_CLK_EN |
+				  AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
+				  AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
+				  AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
+				  AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
+				  AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
+
 	ath79_register_mdio(0, 0x0);
 
-	ath79_init_mac(ath79_eth0_data.mac_addr, art+WNR2200_MAC0_OFFSET, 0);
+	ath79_init_mac(ath79_eth0_data.mac_addr, art + WNR2200_MAC0_OFFSET, 0);
 	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
 	ath79_eth0_data.speed = SPEED_100;
 	ath79_eth0_data.duplex = DUPLEX_FULL;
 
-	ath79_init_mac(ath79_eth1_data.mac_addr, art+WNR2200_MAC1_OFFSET, 0);
+	ath79_init_mac(ath79_eth1_data.mac_addr, art + WNR2200_MAC1_OFFSET, 0);
 	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
 	ath79_eth1_data.phy_mask = 0x10;
 
@@ -160,12 +223,22 @@ static void __init wnr2200_setup(void)
 	ap91_pci_init(art + WNR2200_PCIE_CALDATA_OFFSET, wlan_mac_addr);
 
 	ath79_register_leds_gpio(-1, ARRAY_SIZE(wnr2200_leds_gpio),
-					wnr2200_leds_gpio);
+				 wnr2200_leds_gpio);
+
+	ap9x_pci_setup_wmac_led_pin(0, WNR2200_GPIO_WMAC_LED_WLAN_BLUE);
+	ap9x_pci_setup_wmac_led_name(0, wnr2200_wmac_led_name);
+
+	ap9x_pci_setup_wmac_leds(0, wnr2200_wmac_leds_gpio,
+				 ARRAY_SIZE(wnr2200_wmac_leds_gpio));
+
+	/* All 3 buttons are connected to wireless chip */
+	ap9x_pci_setup_wmac_btns(0, wnr2200_wmac_keys_gpio,
+				 ARRAY_SIZE(wnr2200_wmac_keys_gpio),
+				 WNR2200_KEYS_POLL_INTERVAL);
 
 	/* enable power for the USB port */
-	ap9x_pci_setup_wmac_gpio(0,
-		BIT(WNR2200_GPIO_USB_5V),
-		BIT(WNR2200_GPIO_USB_5V));
+	ap9x_pci_setup_wmac_gpio(0, BIT(WNR2200_GPIO_WMAC_USB_5V),
+				 BIT(WNR2200_GPIO_WMAC_USB_5V));
 
 	ath79_register_usb();
 }