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authorPeter Stuge <peter@stuge.se>2013-07-06 19:44:47 +0200
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-12-02 20:04:39 +0100
commit77a5abe78052ac8f65c005272700d82c2b014da7 (patch)
tree745583faa8fd81fc8e905d56cb1491f4973626d5 /src/ec/lenovo
parent3d06488dbf86763d87980dbf66f384d430eff4fd (diff)
downloadcoreboot-77a5abe78052ac8f65c005272700d82c2b014da7.tar.xz
ec/lenovo/h8: Add h8_build_id_and_function_spec_version()
The function reads the Build ID and the supported function specification version from the running EC firmware, and stores a text representation in the provided output buffer. Change-Id: I3b647d7f315c9b4922fa9a9c5167a80f6d82e753 Signed-off-by: Peter Stuge <peter@stuge.se> Reviewed-on: http://review.coreboot.org/3617 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/ec/lenovo')
-rw-r--r--src/ec/lenovo/h8/h8.c38
-rw-r--r--src/ec/lenovo/h8/h8.h1
2 files changed, 30 insertions, 9 deletions
diff --git a/src/ec/lenovo/h8/h8.c b/src/ec/lenovo/h8/h8.c
index af2aab3c6b..0d1a32dce4 100644
--- a/src/ec/lenovo/h8/h8.c
+++ b/src/ec/lenovo/h8/h8.c
@@ -26,6 +26,7 @@
#include "h8.h"
#include "chip.h"
#include <pc80/mc146818rtc.h>
+#include <string.h>
#include <kconfig.h>
#if IS_ENABLED (CONFIG_BOARD_LENOVO_X201)
@@ -57,17 +58,12 @@ void h8_wlan_enable(int on)
static void h8_log_ec_version(void)
{
- unsigned char ecfw[9], c;
+ char ecfw[17];
+ u8 len;
u16 fwvh, fwvl;
- int i;
- for(i = 0; i < 8; i++) {
- c = ec_read(0xf0 + i);
- if (c < 0x20 || c > 0x7f)
- break;
- ecfw[i] = c;
- }
- ecfw[i] = '\0';
+ len = h8_build_id_and_function_spec_version(ecfw, sizeof ecfw - 1);
+ ecfw[len] = 0;
fwvh = ec_read(0xe9);
fwvl = ec_read(0xe8);
@@ -114,6 +110,30 @@ int h8_ultrabay_device_present(void)
return ec_read(H8_STATUS1) & 0x5 ? 0 : 1;
}
+u8 h8_build_id_and_function_spec_version(char *buf, u8 buf_len)
+{
+ u8 i, c;
+ char str[16 + 1]; /* 16 ASCII chars + \0 */
+
+ /* Build ID */
+ for (i = 0; i < 8; i++) {
+ c = ec_read(0xf0 + i);
+ if (c < 0x20 || c > 0x7f) {
+ i = sprintf(str, "*INVALID");
+ break;
+ }
+ str[i] = c;
+ }
+
+ /* EC firmware function specification version */
+ i += sprintf(str + i, "-%u.%u", ec_read(0xef), ec_read(0xeb));
+
+ i = MIN(buf_len, i);
+ memcpy(buf, str, i);
+
+ return i;
+}
+
static void h8_enable(device_t dev)
{
struct ec_lenovo_h8_config *conf = dev->chip_info;
diff --git a/src/ec/lenovo/h8/h8.h b/src/ec/lenovo/h8/h8.h
index 7379fc7456..061a213d05 100644
--- a/src/ec/lenovo/h8/h8.h
+++ b/src/ec/lenovo/h8/h8.h
@@ -27,6 +27,7 @@ void h8_usb_power_enable(int on);
void h8_enable_event(int event);
void h8_disable_event(int event);
int h8_ultrabay_device_present(void);
+u8 h8_build_id_and_function_spec_version(char *buf, u8 buf_len);
/* EC registers */
#define H8_CONFIG0 0x00