added MTAC Pulse card support for Blue Pillar

4 files changed, 208 insertions, 0 deletions

diff --git a/io-module/mtac.c b/io-module/mtac.c
index 4cbc31f..f0f1999 100644
--- a/io-module/mtac.c
+++ b/io-module/mtac.c
@@ -108,6 +108,7 @@ static bool ap_add_product_info_attributes(int port, int type, struct attribute*
 
 		case MTAC_GPIOB_0_0:
 		case MTAC_MFSER_0_0:
+		case MTAC_PULSE_1_0:
 			break;
 
 		case MTAC_LORA_0_0:
diff --git a/io-module/mtac_pulse.c b/io-module/mtac_pulse.c
new file mode 100644
index 0000000..dae4fa6
--- /dev/null
+++ b/io-module/mtac_pulse.c
@@ -0,0 +1,199 @@
+/**********************************************************************
+ * COPYRIGHT 2012-2018 CONNECTED DEVELOPMENT, LLC
+ *
+ * ALL RIGHTS RESERVED BY AND FOR THE EXCLUSIVE BENEFIT OF
+ * CONNECTED DEVELOPMENT, LLC.
+ *
+ * CONNECTED DEVELOPMENT, LLC - CONFIDENTIAL AND PROPRIETARY
+ * INFORMATION AND/OR TRADE SECRET.
+ *
+ * NOTICE: ALL CODE, PROGRAM, INFORMATION, SCRIPT, INSTRUCTION,
+ * DATA, AND COMMENT HEREIN IS AND SHALL REMAIN THE CONFIDENTIAL
+ * INFORMATION AND PROPERTY OF CONNECTED DEVELOPMENT, LLC.
+ * USE AND DISCLOSURE THEREOF, EXCEPT AS STRICTLY AUTHORIZED IN A
+ * WRITTEN AGREEMENT SIGNED BY CONNECTED DEVELOPMENT, LLC IS PROHIBITED.
+ *
+ ***********************************************************************/
+
+static char* pulse_gpio_pin_name_by_attr_name(const char *name, int port) {
+    switch (port) {
+    case port_1:
+        if (!strcmp(name, "reset")) {
+            return "ap1-reset";
+        } else if (!strcmp(name, "auto-boot")) {
+            return "ap1-gpio1";
+        } else {
+            log_error("attirbute name [%s] is invalid for pulse in port %d",
+                    name, port);
+            return "";
+        }
+
+    case port_2:
+        if (!strcmp(name, "reset")) {
+            return "ap2-reset";
+        } else if (!strcmp(name, "auto-boot")) {
+            return "ap2-gpio1";
+        } else {
+            log_error("attirbute name [%s] is invalid for pulse in port %d",
+                    name, port);
+            return "";
+        }
+    }
+}
+
+// 1 reset
+// 1 auto-boot
+// 1 vendor-id
+// 1 product-id
+// 1 device-id
+// 1 hw-version
+// NULL
+static size_t ap_pulse_attrs_size = 7;
+
+static bool pulse_setup(enum ap port) {
+    int i;
+    int port_index = port - 1;
+    int index = 0;
+    int count = 0;
+    int ret;
+    char buf[32];
+    struct kobj_attribute *attr;
+    struct attribute **attrs;
+
+    log_info("loading pulse accessory card in port %d", port);
+
+    sprintf(buf, "ap%d", port);
+    ap_subdirs[port_index] = kobject_create_and_add(buf,
+            &mts_io_platform_device->dev.kobj);
+    if (!ap_subdirs[port_index]) {
+        log_error("kobject_create_and_add in port %d failed", port);
+        return false;
+    }
+
+    // create the link to the apX directory this card is in
+    // if we're in the first slot, we get plain "pulse"
+    // if we're in a different slot, we might need to use "pulse-2" to differentiate
+    if (port > 1) {
+        for (i = 1; i < port; i++) {
+            if (port_info[i - 1]) {
+                if (strstr(port_info[i - 1]->product_id,
+                        PRODUCT_ID_MTAC_PULSE)) {
+                    count++;
+                }
+            }
+        }
+    }
+    if (count > 0) {
+        sprintf(buf, "pulse-%d", count + 1);
+    } else {
+        sprintf(buf, "pulse");
+    }
+    ret = sysfs_create_link(ap_subdirs[port_index]->parent,
+            ap_subdirs[port_index], buf);
+    if (ret) {
+        log_error("failed to link [%s] to [%s], %d", buf,
+                ap_subdirs[port_index]->name, ret);
+    } else {
+        log_info("created link [%s] to [%s], success:%d", buf,
+                ap_subdirs[port_index]->name, ret);
+    }
+
+    attrs = kzalloc(sizeof(struct attribute *) * ap_pulse_attrs_size,
+            GFP_KERNEL);
+    if (!attrs) {
+        log_error("failed to allocate attribute space for port %d", port);
+        return false;
+    }
+
+    sprintf(buf, "reset");
+    attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+    if (!attr) {
+        log_error("failed to create attribute [%s] for pulse in port %d", buf,
+                port);
+        kfree(attrs);
+        return false;
+    }
+    attr->show = mts_attr_show_ap_gpio_pin;
+    attr->store = mts_attr_store_ap_gpio_pin;
+    attrs[index++] = &attr->attr;
+
+    sprintf(buf, "auto-boot");
+    attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+    if (!attr) {
+        log_error("failed to create attribute [%s] for pulse in port %d", buf,
+                port);
+        kfree(attrs);
+        return false;
+    }
+    attr->show = mts_attr_show_ap_gpio_pin;
+    attr->store = mts_attr_store_ap_gpio_pin;
+    attrs[index++] = &attr->attr;
+
+    // add attributes for eeprom contents
+    if (!ap_add_product_info_attributes(port, MTAC_PULSE_1_0, attrs, &index)) {
+        log_error("failed to add product info attributes for pulse in port %d",
+                port);
+        return false;
+    }
+
+    attrs[index] = NULL;
+
+    ap_attr_groups[port_index].attrs = attrs;
+    if (sysfs_create_group(ap_subdirs[port_index],
+            &ap_attr_groups[port_index])) {
+        log_error("sysfs_create_group failed for pulse in port %d", port);
+        return false;
+    }
+
+    /* override ap_reset output mode to open drain */
+    int res;
+    if (port == 1) {
+        res = gpio_request_one(AT91_PIN_PB12, GPIOF_OUT_INIT_HIGH | GPIOF_OPEN_DRAIN, "ap1-reset");
+    } else {
+        res = gpio_request_one(AT91_PIN_PB13, GPIOF_OUT_INIT_HIGH | GPIOF_OPEN_DRAIN, "ap2-reset");
+    }
+    if (res != 0)
+    {
+        log_error("failed to change ap%d_reset to open drain output", port);
+    }
+
+    return true;
+}
+
+static bool pulse_teardown(enum ap port) {
+    int i;
+    int port_index = port - 1;
+    struct attribute **attrs = ap_attr_groups[port_index].attrs;
+
+    log_info("unloading pulse accessory card in port %d", port);
+
+    if (attrs) {
+        // clean up allocated memory for attributes
+        for (i = 0; i < ap_pulse_attrs_size; i++) {
+            if (attrs[i]) {
+                if (attrs[i]->name)
+                    kfree(attrs[i]->name);
+
+                kfree(attrs[i]);
+            }
+        }
+
+        kfree(attrs);
+    }
+    // clean up our "apX/" kobject if it exists
+    if (ap_subdirs[port_index]) {
+        kobject_put(ap_subdirs[port_index]);
+    }
+
+    return true;
+}
+
+bool set_pulse_info(struct ap_info *info) {
+    snprintf(info->product_id, 32, "%s", PRODUCT_ID_MTAC_PULSE);
+    info->setup = &pulse_setup;
+    info->teardown = &pulse_teardown;
+    info->gpio_pin_name_by_attr_name = &pulse_gpio_pin_name_by_attr_name;
+
+    return true;
+}
+
diff --git a/io-module/mts-io.c b/io-module/mts-io.c
index 31f69f9..180a7b0 100644
--- a/io-module/mts-io.c
+++ b/io-module/mts-io.c
@@ -607,6 +607,7 @@ static struct ap_info* port_info[NUM_AP];
 #include "mtac_mfser.c"
 #include "mtac_eth.c"
 #include "mtac_lora.c"
+#include "mtac_pulse.c"
 
 static bool load_port(int port) {
 	int port_index = port - 1;
@@ -643,6 +644,11 @@ static bool load_port(int port) {
 				log_error("failed to set up lora port info");
 				return false;
 			}
+		} else if (strstr(ap_eeprom[port_index].product_id, PRODUCT_ID_MTAC_PULSE)) {
+			if (! set_pulse_info(port_info[port_index])) {
+				log_error("failed to set up pulse port info");
+				return false;
+			}
 		} else {
 			log_error("unknown accessory card [%s] in port %d", ap_eeprom[port_index].product_id, port);
 			kfree(port_info[port_index]);
diff --git a/io-module/mts_io.h b/io-module/mts_io.h
index 43523ea..780ee18 100644
--- a/io-module/mts_io.h
+++ b/io-module/mts_io.h
@@ -59,6 +59,7 @@ struct device_attribute mts_dev_name = { \
 #define PRODUCT_ID_MTAC_ETH			"MTAC-ETH"
 #define PRODUCT_ID_MTAC_LORA			"MTAC-LORA"
 #define PRODUCT_ID_MTHS			        "MTHS"
+#define PRODUCT_ID_MTAC_PULSE			"MTAC-PULSE"
 
 /* Hardware version must be fewer characters than hw_version
    in struct mts_ap_eeprom_layout */
@@ -112,6 +113,7 @@ enum {
 	MTAC_LORA_1_0,
 	MTAC_LORA_1_1,
 	MTAC_LORA_1_5,
+    MTAC_PULSE_1_0,
 };
 
 struct gpio_pin {