MSI Bravo 15 A4DDR Support

Laptop model

MSI Bravo 15 A4DDR

EC firmware version

16WKEMS1.105

EC memory dump

| _0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _a _b _c _d _e _f
-----+------------------------------------------------
0x0_ | 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x1_ | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x2_ | 00 00 00 00 00 00 00 00 00 00 00 80 c0 07 09 0b
0x3_ | 03 01 00 0d 53 0a 05 00 94 11 88 2c c2 01 c0 00
0x4_ | fc 08 4f 00 1f 0f 00 00 e7 0b 94 2f 8b 0b fa 32
0x5_ | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x6_ | 00 00 00 00 36 00 00 00 37 00 37 40 49 4c 52 58
0x7_ | 6e 2b 26 2b 30 36 3c 46 55 00 08 03 03 03 03 03
0x8_ | 00 00 37 3d 43 49 4f 54 6c 00 00 2b 30 36 3c 46
0x9_ | 55 00 08 03 03 03 03 02 02 00 64 02 00 6e 00 00
0xa_ | 31 36 57 4b 45 4d 53 31 2e 31 30 35 30 39 31 36
0xb_ | 32 30 32 30 31 33 3a 34 34 3a 32 32 1f 0f 00 00
0xc_ | 00 02 23 00 00 00 00 00 00 12 00 00 00 cf 14 00
0xd_ | 00 00 02 00 7f a0 00 00 00 00 00 80 00 00 00 00
0xe_ | e2 02 00 00 10 00 00 00 00 00 00 00 00 c0 00 bc
0xf_ | 00 00 81 80 0d 00 05 00 00 00 00 00 00 00 00 00

GPU

AMD

Is your keyboard RGB?

No (single color)

Additional context

Pull request coming soon.

Working notes

Name	Address	Values seen	Description
charge_control	`0xEF`	`0x9e` (30%, maybe lower) - `0xe4` (100%)	Battery threshold, value `0x80` is also possible for 100%
Battery status	`0x31`	`0x01`-`0x0d`	- bit 0 = Present - bit 1 = Charging - bit 2 = Discharging - bit 3 = Fully charged
Battery charge	`0x42`		Charge percent
webcam	`0x2E`	`0x09` and `0x0c`	No webcam block
fn_win_swap	`0xBF`	`0x00` and `0x10`
cooler_boost	`0x98`	`0x02` and `0x82`
shift_mode	`0xF2`	`0xC1`, `0xC2`, `0xC4` on Windows (or same with `0x8X` on Linux)	- `0xC1`: Silent, Balanced and AI - `0xC2`: Super Battery - `0xC4`: Extreme Performance
super_battery			Set by Mode `0xC2` (?)
fan_mode	`0xF4`	`0x00`, `0x10`, `0x80` (or same with `0xX3` or `0xXd`)	- `0x0d`: normal / Balanced / Performance+Auto - `0x1d`: Silent - `0x8d`: Performance+Advanced
cpu rt temp	`0x68`		Another value/sensor at address `0x64`
cpu rt speed	`0x71`	`0x00` (0%) - `0x96` (150%)	Value at 0x64 (100%) is target at 6000 RPM
gpu rt temp	`0x80`
gpu rt speed	`0x89`	`0x00` (0%) - `0x96` (150%)	Same as CPU
leds			No leds
kbd_bl	`0xF3`	`0x80`-`0x83`	One color, no backlight mode
?	`0xC9`	`0x01`-`0x6d`	Energy consumption? (W or J?)

Energy consumption (?) values:

0x02-0x04 : battery, no GPU (02-03 with min screen brightness, 03-04 with max screen brightness)
0x03-0x05 : battery, with GPU
0x17-0x27 : AC, no GPU, Super Battery mode
0x1c-0x28 : AC, no GPU (even in silent with no fans)
0x2a-0x31 : AC, GPU (5d-6d when the GPU is starting)
0x2a-0x31 : AC, no GPU, cooler boost
0x31-0x39 : AC, GPU, cooler boost On battery, no GPU (value ~0x04), powertop displays 16W and 250 J (20 seconds). |

Remarks

Target Fan Speed vs Realtime RPM

0x71 is CPU Target Fan Speed. It's always one of the 7 values in 0x72-0x77 to control fan speed in Advanced mode. In Auto or Silent modes, the value is still updated, but fans follow Auto/Silent speed instead.

The value at 0xCC and 0xCD is the realtime CPU Fan RPM used in MSI Center. For this device, the constant is 480000 (ISW-Modern msi ec.png).

RPM values seen in MSI Center:

2981 (=floor(480000 / 0xa1))
3000 (=floor(480000 / 0xa0))
3018 (=floor(480000 / 0x9f))
6000 (=floor(480000 / 0x50))
6075 (=floor(480000 / 0x4f))
8421 (=floor(480000 / 0x39))

Same issue with GPU Fan (RPM at 0xCA and 0xCB)

Speed percent

Both CPU and GPU Fan can be configured at "150%" speed 0x96 in Advanced Performance. rt_fan_speed_base_max is set to 0x96 (=150), but it means that percent values are off by a factor of 1.5 This could be solved by adding another attribute rt_fan_speed_base_100 set to 0x64 to calculate the scale to 100% (?) Or by adding an attribute rt_fan_speed_base_max_percent set to 150 (?)

CPU:

100% is 6000 RPM
150% is ~8000 RPM
cooler boost is ~8421 RPM

GPU:

100% is 6000 RPM
150% is ~6000 RPM
cooler boost is ~6000 RPM

BeardOverflow / msi-ec