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| author | Vijay Hiremath <vijay.p.hiremath@intel.com> | 2016-11-09 23:16:05 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-11-12 23:55:08 -0800 |
| commit | 98402bb466e53cbe7b0d47287823126f7de0fdb8 (patch) | |
| tree | e7e5c3263a32d7413b16a53fb00524f066d16815 /driver | |
| parent | 4975e8db75d0af415931e027180977df2f3a2610 (diff) | |
| download | chrome-ec-98402bb466e53cbe7b0d47287823126f7de0fdb8.tar.gz | |
smart_battery: Add console command to read ManufacturerAccess() data
Added console command to read ManufacturerAccess() data on a given
register block.
BUG=chrome-os-partner:59660
BRANCH=none
TEST=Enabled config on Reef.
Successfully able to read ManufacturerAccess() data
Change-Id: Ic86ae1b44ca8016634c48b54b1130d30fdd2d3fa
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/409638
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/battery/smart.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/driver/battery/smart.c b/driver/battery/smart.c index 15dd72ff29..81a74917a9 100644 --- a/driver/battery/smart.c +++ b/driver/battery/smart.c @@ -389,6 +389,63 @@ DECLARE_CONSOLE_COMMAND(battfake, command_battfake, "Set fake battery level"); #endif +#ifdef CONFIG_CMD_BATT_MFG_ACCESS +static int command_batt_mfg_access_read(int argc, char **argv) +{ + char *e; + uint8_t data[32]; + int cmd, block, len = 6; + int rv; + + if (argc < 3 || argc > 4) + return EC_ERROR_PARAM_COUNT; + + cmd = strtoi(argv[1], &e, 0); + if (*e || cmd < 0) + return EC_ERROR_PARAM1; + + block = strtoi(argv[2], &e, 0); + if (*e || block < 0) + return EC_ERROR_PARAM2; + + if (argc > 3) { + len = strtoi(argv[3], &e, 0); + len += 2; + if (*e || len < 1 || len > sizeof(data)) + return EC_ERROR_PARAM3; + } + + /* Send manufacturer access command */ + rv = sb_write(SB_MANUFACTURER_ACCESS, cmd); + if (rv) + return rv; + + /* + * Read data on the register block. + * First two bytes returned are command sent, + * rest are actual data LSB to MSB. + */ + rv = sb_read_string(I2C_PORT_BATTERY, BATTERY_ADDR, + block, data, len); + if (rv) + return rv; + if (data[0] != (cmd & 0xff) || data[1] != (cmd >> 8 & 0xff)) + return EC_ERROR_UNKNOWN; + + ccprintf("data[MSB->LSB]=0x"); + do { + len--; + ccprintf("%02x ", data[len]); + } while (len > 2); + ccprintf("\n"); + + return EC_SUCCESS; +} +DECLARE_CONSOLE_COMMAND(battmfgacc, command_batt_mfg_access_read, + "cmd block | len", + "Read battery manufacture access data"); +#endif /* CONFIG_CMD_BATT_MFG_ACCESS */ + /*****************************************************************************/ /* Smart battery pass-through */ |