diff options
| author | Peter Stuge <peter@stuge.se> | 2013-07-06 19:44:47 +0200 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-12-02 20:04:39 +0100 |
| commit | 77a5abe78052ac8f65c005272700d82c2b014da7 (patch) | |
| tree | 745583faa8fd81fc8e905d56cb1491f4973626d5 /src | |
| parent | 3d06488dbf86763d87980dbf66f384d430eff4fd (diff) | |
| download | coreboot-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')
| -rw-r--r-- | src/ec/lenovo/h8/h8.c | 38 | ||||
| -rw-r--r-- | src/ec/lenovo/h8/h8.h | 1 |
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 |