From 959d78bea4b93ea2ad199c4f8070966cfed69969 Mon Sep 17 00:00:00 2001
From: Jason Reiss <jreiss@multitech.com>
Date: Tue, 11 Feb 2020 10:16:57 -0600
Subject: Add support for MTAC-LORA-2G4-0.0 cards with reset and boot RW pins

---
 mtac_lora.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 69 insertions(+), 1 deletion(-)

diff --git a/mtac_lora.c b/mtac_lora.c
index ce61874..e5a587e 100644
--- a/mtac_lora.c
+++ b/mtac_lora.c
@@ -92,6 +92,45 @@ static struct gpio_pin gpio_pins_mtcdt_mtac_lora_1_5[] = {
 	{ },
 };
 
+static struct gpio_pin gpio_pins_mtcdt_mtac_lora_2g4_0_0[] = {
+	// gpio pins for Accessory Card 1
+	{
+		.name = "AP1_RESET",
+		.pin = {
+			.gpio = AT91_PIN_PB12,
+			.flags = GPIOF_OUT_INIT_HIGH,
+			.label = "ap1-reset",
+		}
+	},
+	{
+		.name = "AP1_BOOT",
+		.pin = {
+			.gpio = AT91_PIN_PC6,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap1-boot",
+		},
+	},
+
+	// gpio pins for Accessory Card 2
+	{
+		.name = "AP2_RESET",
+		.pin = {
+			.gpio = AT91_PIN_PB13,
+			.flags = GPIOF_OUT_INIT_HIGH,
+			.label = "ap2-reset",
+		}
+	},
+	{
+		.name = "AP2_BOOT",
+		.pin = {
+			.gpio = AT91_PIN_PC20,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap2-boot",
+		},
+	},
+	{ },
+};
+
 ssize_t lora_show_eui(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
 {
 	int retval = -1;
@@ -132,6 +171,8 @@ static char* lora_gpio_pin_name_by_attr_name(const char* name, int port) {
 				return "ap1-cdone";
 			} else if (!strcmp(name,"creset")) {
 				return "ap1-creset";
+			} else if (!strcmp(name,"boot")) {
+				return "ap1-boot";
 			} else {
 				log_error("attribute name [%s] is invalid for LORA in port %d", name, port);
 				return "";
@@ -144,6 +185,8 @@ static char* lora_gpio_pin_name_by_attr_name(const char* name, int port) {
 				return "ap2-cdone";
 			} else if (!strcmp(name,"creset")) {
 				return "ap2-creset";
+			} else if (!strcmp(name,"boot")) {
+				return "ap2-boot";
 			} else {
 				log_error("attribute name [%s] is invalid for LORA in port %d", name, port);
 				return "";
@@ -153,7 +196,7 @@ static char* lora_gpio_pin_name_by_attr_name(const char* name, int port) {
 	return "";
 }
 
-// 1 cdone  (optional)
+// 1 cdone/boot  (optional)
 // 1 creset (optional)
 // 1 eui
 // 1 reset
@@ -164,6 +207,7 @@ static char* lora_gpio_pin_name_by_attr_name(const char* name, int port) {
 // NULL
 
 #define ATTRS_SIZE_1_5 9
+#define ATTRS_SIZE_2G4_0_0 8
 #define ATTRS_SIZE_0_0 7
 
 // Set the hardware version if the ROM string matches one of the valid
@@ -231,6 +275,7 @@ static bool lora_setup(enum ap port) {
 	if COMPARE_AND_ASSIGN(MTAC_LORA_0_0)
 	else if COMPARE_AND_ASSIGN(MTAC_LORA_1_0)
 	else if COMPARE_AND_ASSIGN(MTAC_LORA_1_5)
+	else if COMPARE_AND_ASSIGN(MTAC_LORA_2G4_0_0)
 	else {
 		log_error("Unknown hw-version in port %d", port);
 		return false;
@@ -239,6 +284,9 @@ static bool lora_setup(enum ap port) {
 	if ((lora_hw_version == MTAC_LORA_0_0) || (lora_hw_version == MTAC_LORA_1_0)) {
 		ap_lora_attrs_size = ATTRS_SIZE_0_0;
 		mtac_set_port_pins(port_index,gpio_pins_mtcdt_mtac_lora_0_0,subdir);
+	} else if ((lora_hw_version == MTAC_LORA_2G4_0_0) || (lora_hw_version == MTAC_LORA_2G4_0_0)) {
+		ap_lora_attrs_size = ATTRS_SIZE_2G4_0_0;
+		mtac_set_port_pins(port_index,gpio_pins_mtcdt_mtac_lora_2g4_0_0,subdir);
 	} else {
 		ap_lora_attrs_size = ATTRS_SIZE_1_5;
 		mtac_set_port_pins(port_index,gpio_pins_mtcdt_mtac_lora_1_5,subdir);
@@ -295,6 +343,26 @@ static bool lora_setup(enum ap port) {
 		}
 	}
 
+	if (lora_hw_version == MTAC_LORA_2G4_0_0) {
+		//GPIO1 - boot on MCU controls reset into bootloader mode
+		sprintf(buf, "boot");
+		attr = mtac_create_attribute(buf, MTS_ATTR_MODE_RW);
+		if (! attr) {
+			log_error("failed to create attribute [%s] for LORA in port %d", buf, port);
+			attrs[index] = NULL;
+			mtac_port_info[port_index]->attr_group.attrs = attrs;
+			return false;
+		}
+		attr->show = mtac_attr_show_ap_gpio_pin;
+		attr->store = mtac_attr_store_ap_gpio_pin;
+		attrs[index++] = &attr->attr;
+
+		if(index >= ap_lora_attrs_size) {
+			panic("Internal error, too many attributes on the LORA card index %d >= %d",
+					index,ap_lora_attrs_size);
+		}
+	}
+
 	sprintf(buf,"eui");
 	attr = mtac_create_attribute("eui", MTS_ATTR_MODE_RO);
 	if (! attr) {
-- 
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