hikey: Adopt uim to handle old kernel path
Test: Manual
Bug: 38239788
Change-Id: Ie5e779c92d382046a1023f4760b8cb7b56645066
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpan/uim/uim.c b/wpan/uim/uim.c
index a9dde00..7f78f0c 100644
--- a/wpan/uim/uim.c
+++ b/wpan/uim/uim.c
@@ -42,6 +42,12 @@
char uim_bd_address[BD_ADDR_LEN];
bdaddr_t *bd_addr;
+/* kim Sysfs path */
+static char *sysfs_install_entry = INSTALL_SYSFS_ENTRY;
+static char *sysfs_dev_name = DEV_NAME_SYSFS;
+static char *sysfs_baud_rate = BAUD_RATE_SYSFS;
+static char *sysfs_flow_ctrl = FLOW_CTRL_SYSFS;
+
/*****************************************************************************/
#ifdef UIM_DEBUG
/* Function to Read the firmware version
@@ -65,6 +71,14 @@
}
#endif
+void sysfs_entry_fallback(void)
+{
+ sysfs_install_entry = INSTALL_SYSFS_ENTRY_OLD;
+ sysfs_dev_name = DEV_NAME_SYSFS_OLD;
+ sysfs_baud_rate = BAUD_RATE_SYSFS_OLD;
+ sysfs_flow_ctrl = FLOW_CTRL_SYSFS_OLD;
+}
+
/*****************************************************************************/
/* Function to read the HCI event from the given file descriptor
*
@@ -283,9 +297,9 @@
if (install == '1') {
memset(buf, 0, UART_DEV_NAME_LEN);
- fd = open(DEV_NAME_SYSFS, O_RDONLY);
+ fd = open(sysfs_dev_name, O_RDONLY);
if (fd < 0) {
- UIM_ERR("Can't open %s", DEV_NAME_SYSFS);
+ UIM_ERR("Can't open %s", sysfs_dev_name);
return -1;
}
len = read(fd, buf, UART_DEV_NAME_LEN);
@@ -298,9 +312,9 @@
close(fd);
memset(buf, 0, UART_DEV_NAME_LEN);
- fd = open(BAUD_RATE_SYSFS, O_RDONLY);
+ fd = open(sysfs_baud_rate, O_RDONLY);
if (fd < 0) {
- UIM_ERR("Can't open %s", BAUD_RATE_SYSFS);
+ UIM_ERR("Can't open %s", sysfs_baud_rate);
return -1;
}
len = read(fd, buf, UART_DEV_NAME_LEN);
@@ -313,9 +327,9 @@
sscanf((const char*)buf, "%d", &cust_baud_rate);
memset(buf, 0, UART_DEV_NAME_LEN);
- fd = open(FLOW_CTRL_SYSFS, O_RDONLY);
+ fd = open(sysfs_flow_ctrl, O_RDONLY);
if (fd < 0) {
- UIM_ERR("Can't open %s", FLOW_CTRL_SYSFS);
+ UIM_ERR("Can't open %s", sysfs_flow_ctrl);
close(fd);
return -1;
}
@@ -486,14 +500,17 @@
/* sysfs entry may get populated after service is started so we retry if it fails*/
while (trials > 0) {
- st_fd = open(INSTALL_SYSFS_ENTRY, O_RDONLY);
+ st_fd = open(sysfs_install_entry, O_RDONLY);
if(st_fd > 0)
break;
- usleep(500000);
+ if (trials == 3)
+ sysfs_entry_fallback();
+ else
+ usleep(500000);
--trials;
}
if (st_fd < 0) {
- UIM_DBG("unable to open %s(%s)", INSTALL_SYSFS_ENTRY, strerror(errno));
+ UIM_DBG("unable to open %s(%s)", sysfs_install_entry, strerror(errno));
return -1;
}
@@ -525,9 +542,9 @@
}
close(st_fd);
- st_fd = open(INSTALL_SYSFS_ENTRY, O_RDONLY);
+ st_fd = open(sysfs_install_entry, O_RDONLY);
if (st_fd < 0) {
- UIM_DBG("unable to open %s (%s)", INSTALL_SYSFS_ENTRY, strerror(errno));
+ UIM_DBG("unable to open %s (%s)", sysfs_install_entry, strerror(errno));
return -1;
}
diff --git a/wpan/uim/uim.h b/wpan/uim/uim.h
index c88d9cc..dc9c5b1 100644
--- a/wpan/uim/uim.h
+++ b/wpan/uim/uim.h
@@ -69,6 +69,10 @@
#define BAUD_RATE_SYSFS "/sys/devices/platform/kim/baud_rate"
#define FLOW_CTRL_SYSFS "/sys/devices/platform/kim/flow_cntrl"
+#define INSTALL_SYSFS_ENTRY_OLD "/sys/devices/kim/install"
+#define DEV_NAME_SYSFS_OLD "/sys/devices/kim/dev_name"
+#define BAUD_RATE_SYSFS_OLD "/sys/devices/kim/baud_rate"
+#define FLOW_CTRL_SYSFS_OLD "/sys/devices/kim/flow_cntrl"
#define VERBOSE
/*Debug logs*/
