NFC: Read core reset notification
After chip has cold booted wait maximum of 50ms to
receive core reset notification.
Implement kernel ioctl to read whether core reset
notification has recieved before timeout.
Cold boot implementation of NFCC had a bug,
GPIO disable needs to be held high for atleast
100ms before switching it to low for a clean cold
boot.
CRs-Fixed: 729456
Change-Id: I11a213d68ff1b44f433706e104bbaeac406bd5d6
Signed-off-by: Nakul Kadannavar <nakulk@codeaurora.org>
diff --git a/drivers/nfc/nfc-nci.h b/drivers/nfc/nfc-nci.h
index 297c152..8186861 100644
--- a/drivers/nfc/nfc-nci.h
+++ b/drivers/nfc/nfc-nci.h
@@ -60,6 +60,7 @@
#define SET_RX_BLOCK _IOW(0xE9, 0x04, unsigned int)
#define SET_EMULATOR_TEST_POINT _IOW(0xE9, 0x05, unsigned int)
#define NFCC_VERSION _IOW(0xE9, 0x08, unsigned int)
+#define NFCC_INITIAL_CORE_RESET_NTF _IOW(0xE9, 0x10, unsigned int)
#define NFC_MAX_I2C_TRANSFER (0x0400)
#define NFC_MSG_MAX_SIZE (0x21)
@@ -195,6 +196,11 @@
NFCC_INT,
};
+enum nfcc_initial_core_reset_ntf {
+ TIMEDOUT_INITIAL_CORE_RESET_NTF = 0, /* 0*/
+ ARRIVED_INITIAL_CORE_RESET_NTF, /* 1 */
+ DEFAULT_INITIAL_CORE_RESET_NTF, /*2*/
+};
struct nfc_info {
struct miscdevice miscdev;