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authorMike Fiore <mfiore@multitech.com>2014-10-13 13:21:23 -0500
committerMike Fiore <mfiore@multitech.com>2014-10-13 13:21:23 -0500
commit2e5fcb88eb1d8efe81bbfbb141edb3d1572ac647 (patch)
tree94f7d95085260994e5df2fa2cd4148a30d6e7f75 /io-module
parent580677dea4b14e359f2c0622e4340da0cee761c0 (diff)
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mts-io: add mtac-eth support, card gets ID'd correctly and eeprom attributes are in sysfs
Diffstat (limited to 'io-module')
-rw-r--r--io-module/mtac.c2
-rw-r--r--io-module/mtac_eth.c110
-rw-r--r--io-module/mts_io.c6
3 files changed, 117 insertions, 1 deletions
diff --git a/io-module/mtac.c b/io-module/mtac.c
index 9b27e0d..d25771d 100644
--- a/io-module/mtac.c
+++ b/io-module/mtac.c
@@ -93,7 +93,7 @@ static bool ap_add_product_info_attributes(int port, int type, struct attribute*
return false;
}
kobj_attr->show = ap_show_product_info;
- attrs[*index++] = &kobj_attr->attr;
+ attrs[(*index)++] = &kobj_attr->attr;
break;
case MTAC_GPIOB_0_0:
diff --git a/io-module/mtac_eth.c b/io-module/mtac_eth.c
new file mode 100644
index 0000000..09b52ee
--- /dev/null
+++ b/io-module/mtac_eth.c
@@ -0,0 +1,110 @@
+static char* eth_gpio_pin_name_by_attr_name(const char* name, int port) {
+ log_error("attirbute name [%s] is invalid for ETH in port %d", name, port);
+ return "";
+}
+
+// 1 vendor-id
+// 1 product-id
+// 1 device-id
+// 1 hw-version
+// NULL
+static size_t ap_eth_attrs_size = 5;
+
+static bool eth_setup(enum ap port) {
+ int i;
+ int port_index = port - 1;
+ int index = 0;
+ int count = 0;
+ int ret;
+ char buf[32];
+ struct attribute **attrs;
+
+ log_info("loading ETH 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 for ETH 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 "eth"
+ // if we're in a different slot, we might need to use "eth-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_ETH)) {
+ count++;
+ }
+ }
+ }
+ }
+ if (count > 0) {
+ sprintf(buf, "eth-%d", count + 1);
+ } else {
+ sprintf(buf, "eth");
+ }
+ 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);
+ }
+
+ attrs = kzalloc(sizeof(struct attribute*) * ap_eth_attrs_size, GFP_KERNEL);
+ if (! attrs) {
+ log_error("failed to allocate attribute space for port %d", port);
+ return false;
+ }
+
+ // add attributes for eeprom contents
+ if (! ap_add_product_info_attributes(port, MTAC_ETH_0_0, attrs, &index)) {
+ log_error("failed to add product info attributes for ETH 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 ETH in port %d", port);
+ return false;
+ }
+
+ return true;
+}
+
+static bool eth_teardown(enum ap port) {
+ int i;
+ int port_index = port - 1;
+ struct attribute **attrs = ap_attr_groups[port_index].attrs;
+
+ log_info("unloading ETH accessory card in port %d", port);
+
+ // clean up allocated memory for attributes
+ for (i = 0; i < ap_eth_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_eth_info(struct ap_info* info) {
+ snprintf(info->product_id, 32, "%s", PRODUCT_ID_MTAC_ETH);
+ info->setup = &eth_setup;
+ info->teardown = &eth_teardown;
+ info->gpio_pin_name_by_attr_name = &eth_gpio_pin_name_by_attr_name;
+
+ return true;
+}
diff --git a/io-module/mts_io.c b/io-module/mts_io.c
index 8a2de67..2d60a6d 100644
--- a/io-module/mts_io.c
+++ b/io-module/mts_io.c
@@ -97,6 +97,7 @@ static DEFINE_MUTEX(mts_io_mutex);
#include "mtac.c"
#include "mtac_gpiob.c"
#include "mtac_mfser.c"
+#include "mtac_eth.c"
/* reset button handling */
#define RESET_CHECK_PER_SEC 8
@@ -400,6 +401,11 @@ static bool load_port(int port) {
log_error("failed to set up mfser port info");
return false;
}
+ } else if (strstr(ap_eeprom[port_index].product_id, PRODUCT_ID_MTAC_ETH)) {
+ if (! set_eth_info(port_info[port_index])) {
+ log_error("failed to set up eth port info");
+ return false;
+ }
} else {
log_error("unknown accessory card [%s] in port %d", ap_eeprom[port_index].product_id, port);
return false;