From e6f0a1d410d4249bbc59c368be37988d4778159f Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Mon, 20 Jun 2011 16:01:59 -0300
Subject: [PATCH] libatrf: new function atrf_interrupt_wait for
 interrupt-driven wait for interrupt

- tools/lib/driver.h (struct atrf_driver): new driver operation
  interrupt_wait
- include/atrf.h (atrf_interrupt_wait), atrf.c: new function to
  wait for a transceiver interrupt without polling
---
 tools/include/atrf.h | 1 +
 tools/lib/atrf.c     | 7 +++++++
 tools/lib/driver.h   | 1 +
 3 files changed, 9 insertions(+)

diff --git a/tools/include/atrf.h b/tools/include/atrf.h
index d5e4e11..c83ee50 100644
--- a/tools/include/atrf.h
+++ b/tools/include/atrf.h
@@ -56,5 +56,6 @@ void atrf_sram_write(struct atrf_dsc *dsc, uint8_t addr, uint8_t value);
 uint8_t atrf_sram_read(struct atrf_dsc *dsc, uint8_t addr);
 
 int atrf_interrupt(struct atrf_dsc *dsc);
+int atrf_interrupt_wait(struct atrf_dsc *dsc, int timeout_ms);
 
 #endif /* !ATRF_H */
diff --git a/tools/lib/atrf.c b/tools/lib/atrf.c
index f88ec88..aaf1c15 100644
--- a/tools/lib/atrf.c
+++ b/tools/lib/atrf.c
@@ -323,3 +323,10 @@ int atrf_interrupt(struct atrf_dsc *dsc)
 	return
 	    dsc->driver->interrupt ? dsc->driver->interrupt(dsc->handle) : 1;
 }
+
+
+int atrf_interrupt_wait(struct atrf_dsc *dsc, int timeout_ms)
+{
+	return dsc->driver->interrupt_wait ?
+	    dsc->driver->interrupt_wait(dsc->handle, timeout_ms) : -1;
+}
diff --git a/tools/lib/driver.h b/tools/lib/driver.h
index cf05a9f..727f138 100644
--- a/tools/lib/driver.h
+++ b/tools/lib/driver.h
@@ -36,6 +36,7 @@ struct atrf_driver {
 	void (*sram_write)(void *dsc, uint8_t addr, uint8_t value);
 	uint8_t (*sram_read)(void *dsc, uint8_t addr);
 	int (*interrupt)(void *dsc);
+	int (*interrupt_wait)(void *dsc, int timeout_ms);
 };