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| author | matt_wang <matt_wang@compal.corp-partner.google.com> | 2019-02-13 20:59:23 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-02-26 16:49:14 -0800 |
| commit | c2c2776e3a5ee68a1d2a2bab09635692418db998 (patch) | |
| tree | 6c8b4676216febe6fa2185a3b5c5e38e3f2d599f /driver | |
| parent | 219b09e87f61ffb410fe1a1dbaed4983460fefb4 (diff) | |
| download | chrome-ec-c2c2776e3a5ee68a1d2a2bab09635692418db998.tar.gz | |
Battery: add support battery-cutoff SMBus block write function
Implements battery-cutoff SMBus write block function
BUG=b:122944526
BRANCH=None
TEST=Verify battery cuff on fleex via SMBus block write.
Change-Id: Ib52146cd3042c4a6d2dbafadd430591936230891
Signed-off-by: matt_wang <matt_wang@compal.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/1470462
Commit-Ready: Justin TerAvest <teravest@chromium.org>
Tested-by: Justin TerAvest <teravest@chromium.org>
Tested-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/battery/smart.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/driver/battery/smart.c b/driver/battery/smart.c index 758a60f546..f06da84e9f 100644 --- a/driver/battery/smart.c +++ b/driver/battery/smart.c @@ -108,6 +108,21 @@ int sb_read_mfgacc(int cmd, int block, uint8_t *data, int len) return EC_SUCCESS; } +int sb_write_block(int reg, const uint8_t *val, int len) +{ +#ifdef CONFIG_BATTERY_CUT_OFF + /* + * Some batteries would wake up after cut-off if we talk to it. + */ + if (battery_is_cut_off()) + return EC_RES_ACCESS_DENIED; +#endif + + /* TODO: implement smbus_write_block. */ + return i2c_write_block(I2C_PORT_BATTERY, BATTERY_ADDR, reg, val, len); + +} + int battery_get_mode(int *mode) { return sb_read(SB_BATTERY_MODE, mode); |