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* PCHG: Support firmware updateDaisuke Nojiri2021-04-051-7/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds EC_CMD_PCHG_UPDATE, which allows the host to update firmware of ctn730 via I2C. An updater (e.g. ectool) is expected to issue EC_PCHG_UPDATE_CMD_OPEN, multiple EC_PCHG_UPDATE_CMD_WRITEs, then EC_PCHG_UPDATE_CLOSE. Each sub-command completion is notified to the host via EC_MKBP_EVENT_PCHG. An updater is supposed to wait for the previous sub-command to complete before proceeding to the next. Example: localhost ~ # ectool pchg 0 State: DOWNLOAD (6) FW Version: 0x104 localhost ~ # ectool pchg 0 update 0x207000 0x105 /path/to/image.bin Update file /path/to/image.bin (85632 bytes) is opened. Writing firmware (port=0 ver=0x105 addr=0x207000 bsize=128): ********************************************************************** FW update session closed (CRC32=0x7bd5c66f). localhost ~ # ectool pchg 0 reset Reset port 0 complete localhost ~ # ectool pchg 0 State: ENABLED (2) FW Version: 0x105 BUG=b:182600604, b:173235954 BRANCH=trogdor TEST=ectool pchg 0 update 0x201200 0x105 /tmp/user_ee_X0.1_V1.5.bin TEST=ectool pchg 0 reset Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I9c62f1714dd69428ab5870c443cb4eb77881a6c6 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2757099
* ctn730: Print firmware versionDaisuke Nojiri2021-03-241-0/+2
| | | | | | | | | | | | | | | | | | This patch makes ctn730 driver print the firmware version. EC_CMD_PCHG is updated to version 1 and returns firmware version of a charger chip. Version 0 of EC_CMD_PCHG is deprecated. BUG=b:182600604, b:173235954, b:183151376 BRANCH=Trogdor TEST=Verify firmware version is printed on EC console. TEST=ectool pchg 0 (for version 1) TEST=cat /sys/class/power_supply/PCHG0/* (for version 0) "ERR kernel: [ 33.394847] cros-ec-pchg cros-ec-pchg.13.auto: Unable to get port.0 status (err:-524)" Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: Ib7bb9a7225fe914bc6c8d600d0f4766dbf75ace8 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2757098
* PCHG: Support reset to firmware update modeDaisuke Nojiri2021-03-181-0/+11
| | | | | | | | | | | | | | | | | | | | | | | This patch allows a charger chip to reset to firmware update mode (a.k.a. download mode). Actual firmware update will be added in a separate patch. Currently, a reset event causes the state machine to unconditionally transition to normal mode. This patch makes the state machine check 'mode' field in the context to decide whether it transitions to normal mode or not. This patch also makes ctn730 driver explicitly return PCHG_EVENT_*_ERROR while PCHG_EVENT_NONE was returned previously. BUG=b:173235954 BRANCH=trogdor TEST=Stylus connect, disconnect, charge events are triggered as expected. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I10dbd25d0b3d5284952e57d4ade2949e9594c8d1 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2770503
* PCHG: Count number of dropped events per portDaisuke Nojiri2021-03-181-0/+2
| | | | | | | | | | | | | Currently, dropped events are counted for all ports combined. This patch makes them counted for each port separately. BUG=b:173235954 BRANCH=trogdor TEST=Verify 'pchg 0' prints dropped event count. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I09380927613defe34bef0fece022fc9d47ebb8a1 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2770502
* PCHG: Check array sizes for state and event textsDaisuke Nojiri2021-03-181-0/+3
| | | | | | | | | | | | | | This patch makes a compiler check array sizes used to stringify PCHG states and events. BUG=b:173235954 BRANCH=trogdor TEST=make Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I13dc399dc973d8a661492236668c22b323e7c1c4 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2765423 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* PCHG: Handle reset eventDaisuke Nojiri2021-03-091-0/+3
| | | | | | | | | | | | | | | | | | | | Currently, PCHG assumes PCHG chips are reset only on POR and ignores reset events. This can cause the state machine to be in an unexpected state when a reset happens asynchronously. This patch allows PCHG to handle chip reset events. It also makes the task explicitly reset PCHG chips at start-up so that everything will start in known & clean states. BUG=b:181745891,b:181036152,b:173235954 BRANCH=trogdor TEST=Verify PCHG behaves expectedly across cold reset, warm reset, suspend & resume. Repeat the test with and without stylus. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: Ia3dd1fe7ebc8dd6f4ee8149a4c25918922143fc3 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2741282 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* PCHG: Get SOC proactively when device is detectedDaisuke Nojiri2021-02-121-0/+2
| | | | | | | | | | | | | | | | | This patch makes PCHG send CHG_CTRL_CHARGING_INFO_CMD when a stylus is detected. This will allow the EC to report 'full' to the host even if charging doesn't start (because the stylus is already charged). BUG=b:179390065,b:173235954 BRANCH=trogdor TEST=CoachZ. Re-attach charged stylus and verify PCHG_STATE_FULL is reported. Change-Id: Id8578e2d3d21294fb08a21933f12ecee7f2bd062 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2691729 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* pchg: Notify host of full chargeDaisuke Nojiri2021-02-121-0/+2
| | | | | | | | | | | | | | | | | | | Currently, full charge status is implied by capacity = 100 and PCHG_STATE_DETECTED (i.e. state='not charging'). If the charger stops charging before 100% (for battery health control), this condition doesn't work. This patch makes PCHG send PCHG_STATE_FULL explicitly when it sees the soc goes above the threshold in PCHG_STATE_DETECTED. BUG=b:179390065,b:173235954 BRANCH=trogdor TEST=CoachZ. Charge till 96% and verify PCHG0/state becomes 'Full'. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I634f96992cdc7ef44b5e43544603cc5cc9b3a62d Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2691366 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* PCHG: Add host commandDaisuke Nojiri2020-12-101-13/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a host command to get the peripheral charge port count and status. $ ectool pchg 1 $ ectool pchg 0 State: CHARGING (4) Battery: 50% Flags: 0x0 $ ectool pchg 0 foo Invalid parameter count Usage1: pchg Usage2: pchg <port> Usage1 prints the number of ports. Usage2 prints the status of a port. $ ectool pchg 100 Bad port index BUG=b:173235954 BRANCH=Trogdor TEST=Done on CoachZ. See the description above. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I33f261e48b16d5933b6f3ca9f3c12fec476edda3 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2555628 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* PCHG: Add peripheral charge managerDaisuke Nojiri2020-11-241-0/+184
Peripheral charge manager communicates with peripheral charge chips to charge batteries of peripheral devices. Tested using Coachz proto and a listener evaluation board from NXP demo kit as follows: 1. Attach device then battery percentage is reported periodically. 2. Detach device then re-attach device to stop and resume charging. 3. Disable port by 'pchg 0 disable' to stop charging. 4. Enable disabled port by 'pchg 0 enable' to resume charging while device is in proximity. 5. When port is disabled, a device isn't detected or charged. BUG=b:173235954 BRANCH=Trogdor TEST=See the description above. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: I0c2b583e5f7736b26ec7d1fb9cd9b6c59c7e8177 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2538536 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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