diff options
author | Sheng-Liang Song <ssl@chromium.org> | 2014-07-26 19:56:43 -0700 |
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committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-09-05 07:20:49 +0000 |
commit | b550e7cbb406da519348e483291e31bfddbf5ba7 (patch) | |
tree | fad2819bdf177cc359fecae2461d21dd13c36d14 /util/ec_sb_firmware_update.h | |
parent | 1cf5ca93b63dc7d43dcc799bce4436ecaf1d4876 (diff) | |
download | chrome-ec-b550e7cbb406da519348e483291e31bfddbf5ba7.tar.gz |
EC: Add util for battery firmware update
Ref: Common Smart Battery System Inferface Specification v8.0.
Implemented smart battery firmware update util based the above spec.
BUG=chrome-os-partner:24741
CQ-DEPEND=CL:210032
CQ-DEPEND=CL:210033
CQ-DEPEND=CL:215720
BRANCH=ToT
TEST=Verified LGC & Simplo Battery Update on glimmer
Change-Id: Ia61a49f4643ea349d42a4b87d6010c1ac011729b
Signed-off-by: Sheng-Liang Song <ssl@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/205324
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'util/ec_sb_firmware_update.h')
-rw-r--r-- | util/ec_sb_firmware_update.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/util/ec_sb_firmware_update.h b/util/ec_sb_firmware_update.h new file mode 100644 index 0000000000..8737756cd4 --- /dev/null +++ b/util/ec_sb_firmware_update.h @@ -0,0 +1,139 @@ +/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * Smart battery Firmware Update driver. + * Ref: Common Smart Battery System Interface Specification v8.0. + * + * cmd.0x35, Write Word + * 0x1000: Prepare to Update + * 0x2000: End of Update + * 0xF000: Update Firmware + * + * cmd.0x35, Read Word + * Firmware Update Status + * + * cmd.0x36 Write Block + * Send 32 byte firmware image + * + * cmd.0x37 Read Word + * Get Battery Information + * sequence:=b1,b0,b3,b2,b5,b5,b7,b6 + * + * Command Sequence for Battery FW Update + * + * 0. cmd.0x35.read + * 1. cmd.0x37.read + * 2. cmd.0x35.write.0x1000 + * 3. cmd.0x35.read.status (optional) + * 4. cmd.0x35.write.0xF000 + * 5. cmd.0x35.read.status + * if bit8-0, go to step 2 + * 6. cmd.0x36.write.32byte + * 7. cmd.0x35.read.status + * if FEC.b13=1, go to step 6 + * if fatal.b12=1, go to step 2 + * if b11,b10,b9,b2,b1,b0; go to step 1 + * if b5,b3; go to step 8 + * (repeat 6,7) + * 8. cmd.0x36.write.0x2000 + * 9. cmd.0x35.read.status + */ + +#ifndef __CROS_EC_SB_FIRMWARE_UPDATE_H__ +#define __CROS_EC_SB_FIRMWARE_UPDATE_H__ + +struct sb_fw_header { + uint8_t signature[4]; /* "BTFW" */ + uint16_t hdr_version; /* 0x0100 */ + uint16_t pkg_version_major_minor; + + uint16_t vendor_id; /* 8,9 */ + uint16_t battery_type; /* A B */ + + uint16_t fw_version; /* C D */ + uint16_t data_table_version; /* E F */ + uint32_t fw_binary_offset; /*0x10 0x11 0x12 0x13 */ + uint32_t fw_binary_size; /* 0x14 0x15 0x16 0x17 */ + uint8_t checksum; /* 0x18 */ +}; + +/** + * sb.fw.update.cmd.0x35, Read Word + * Firmware Update Status + */ +struct sb_fw_update_status { + uint16_t v_fail_maker_id:1; /* b0 */ + uint16_t v_fail_hw_id:1; /* b1 */ + uint16_t v_fail_fw_version:1; /* b2 */ + uint16_t v_fail_permanent:1; /* b3 */ + + uint16_t rsvd5:1; /* b4 */ + uint16_t permanent_failure:1; /* b5 */ + uint16_t abnormal_condition:1; /* b6 */ + uint16_t fw_update_supported:1; /* b7 */ + + uint16_t fw_update_mode:1; /* b8 */ + uint16_t fw_corrupted:1; /* b9 */ + uint16_t cmd_reject:1; /* b10 */ + uint16_t invalid_data:1; /* b11 */ + + uint16_t fw_fatal_error:1; /* b12 */ + uint16_t fec_error:1; /* b13 */ + uint16_t busy:1; /* b14 */ + uint16_t rsvd15:1; /* b15 */ +} __packed; + +/** + * sb.fw.update.cmd.0x37 Read Word + * Get Battery Information + * sequence:=b1,b0,b3,b2,b5,b5,b7,b6 + */ +struct sb_fw_update_info { + uint16_t maker_id; /* b0, b1 */ + uint16_t hardware_id; /* b2, b3 */ + uint16_t fw_version; /* b4, b5 */ + uint16_t data_version;/* b6, b7 */ +} __packed; + +/** + * smart.battery.maker.id + */ +enum sb_maker_id { + sb_maker_id_lgc = 0x0001, /* b0=0; b1=1 */ + sb_maker_id_panasonic = 0x0002, + sb_maker_id_sanyo = 0x0003, + sb_maker_id_sony = 0x0004, + sb_maker_id_simplo = 0x0005, + sb_maker_id_celxpert = 0x0006, +}; + +/* if permanent error:b5,b3; go to setp8 */ +#define SB_FW_UPDATE_PERMANENT_ERROR_MASK 0x0028 + +/* if firmware update fatal error:b12; go to step2 */ +#define SB_FW_UPDATE_FW_FATAL_ERROR_MASK 0x1000 +#define SB_FW_UPDATE_FW_FATAL_ERROR_RETRY_CNT 1 /* Retry Error cnt*/ + +/* if error:b11,b10,b9 b2,b1,b0; go to step1 */ +#define SB_FW_UPDATE_ERROR_MASK 0x0E07 +#define SB_FW_UPDATE_ERROR_RETRY_CNT 1 /* Retry Error cnt*/ + +/* if FEC.b13=1, go to step6 */ +#define SB_FW_UPDATE_FEC_ERROR_MASK 0x2000 /* b13 */ +#define SB_FW_UPDATE_FEC_ERROR_RETRY_CNT 1 /* b13.FEC retry cnt*/ + +/* if busy; retry 10 times */ +#define SB_FW_UPDATE_BUSY_ERROR_MASK 0x4000 /* b14 */ +#define SB_FW_UPDATE_BUSY_ERROR_RETRY_CNT 1 /* b14.busy retry cnt*/ + +/** + * Update Smart Battery Firmware + * + * @param fw_image_name firmware image name + * + * @return 0 if success, negative if error. + */ +int ec_sb_firmware_update(const char *fw_image_name); + +#endif |