From 472e18294cd26300524edaa98169bfd159964d3e Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Fri, 3 Jun 2011 13:52:13 -0300
Subject: [PATCH] libatrf: added SRAM access functions

- tools/include/atrf.h (atrf_sram_write, atrf_sram_read),
  tools/lib/atrf.c: single-byte SRAM access front-end functions
- tools/lib/driver.h (struct atrf_driver): new driver functions
  sram_write and sram_read
---
 tools/include/atrf.h |  3 +++
 tools/lib/atrf.c     | 12 ++++++++++++
 tools/lib/driver.h   |  2 ++
 3 files changed, 17 insertions(+)

diff --git a/tools/include/atrf.h b/tools/include/atrf.h
index 2c768d0..e9ef2e6 100644
--- a/tools/include/atrf.h
+++ b/tools/include/atrf.h
@@ -52,6 +52,9 @@ uint8_t atrf_reg_read(struct atrf_dsc *dsc, uint8_t reg);
 void atrf_buf_write(struct atrf_dsc *dsc, const void *buf, int size);
 int atrf_buf_read(struct atrf_dsc *dsc, void *buf, int size);
 
+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);
 
 #endif /* !ATRF_H */
diff --git a/tools/lib/atrf.c b/tools/lib/atrf.c
index 682d2f9..306ab53 100644
--- a/tools/lib/atrf.c
+++ b/tools/lib/atrf.c
@@ -305,6 +305,18 @@ int atrf_buf_read(struct atrf_dsc *dsc, void *buf, int size)
 }
 
 
+void atrf_sram_write(struct atrf_dsc *dsc, uint8_t addr, uint8_t value)
+{
+	dsc->driver->sram_write(dsc->handle, addr, value);
+}
+
+
+uint8_t atrf_sram_read(struct atrf_dsc *dsc, uint8_t addr)
+{
+	return dsc->driver->sram_read(dsc->handle, addr);
+}
+
+
 int atrf_interrupt(struct atrf_dsc *dsc)
 {
 	return
diff --git a/tools/lib/driver.h b/tools/lib/driver.h
index 40a1d6a..55e8fa2 100644
--- a/tools/lib/driver.h
+++ b/tools/lib/driver.h
@@ -33,6 +33,8 @@ struct atrf_driver {
 	uint8_t (*reg_read)(void *dsc, uint8_t reg);
 	void (*buf_write)(void *dsc, const void *buf, int size);
 	int (*buf_read)(void *dsc, void *buf, int size);
+	void (*sram_write)(void *dsc, uint8_t addr, uint8_t value);
+	uint8_t (*sram_read)(void *dsc, uint8_t addr);
 	int (*interrupt)(void *dsc);
 };