drivers:misc: ti-st: move from rfkill to sysfs
The communication between ST KIM and UIM was interfaced
over the /dev/rfkill device node.
Move the interface to a simpler less abusive sysfs entry
mechanism and document it in Documentation/ABI/testing/
under sysfs-platform-kim.
Shared transport driver would now read the UART details
originally received by bootloader or firmware as platform
data.
The data read will be shared over sysfs entries for the user-space
UIM or other n/w manager/plugins to be read, and assist the driver
by opening up the UART, setting the baud-rate and installing the
line discipline.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index 1674ca7..010cda7 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -206,8 +206,8 @@
/* time in msec to wait for
* line discipline to be installed
*/
-#define LDISC_TIME 500
-#define CMD_RESP_TIME 500
+#define LDISC_TIME 1000
+#define CMD_RESP_TIME 800
#define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \
| ((unsigned short)((unsigned char)(b))) << 8))
@@ -230,6 +230,7 @@
unsigned short maj_ver;
};
+#define UART_DEV_NAME_LEN 32
/**
* struct kim_data_s - the KIM internal data, embedded as the
* platform's drv data. One for each ST device in the system.
@@ -271,6 +272,10 @@
enum proto_type rf_protos[ST_MAX_CHANNELS];
struct st_data_s *core_data;
struct chip_version version;
+ unsigned char ldisc_install;
+ unsigned char dev_name[UART_DEV_NAME_LEN];
+ unsigned char flow_cntrl;
+ unsigned long baud_rate;
};
/**
@@ -413,4 +418,14 @@
u16 plen;
} __attribute__ ((packed));
+/* platform data */
+struct ti_st_plat_data {
+ long gpios[ST_MAX_CHANNELS]; /* BT, FM and GPS */
+ unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */
+ unsigned char flow_cntrl; /* flow control flag */
+ unsigned long baud_rate;
+ int (*suspend)(struct platform_device *, pm_message_t);
+ int (*resume)(struct platform_device *);
+};
+
#endif /* TI_WILINK_ST_H */