Download raw body.
Fix boot on HONOR MagicBook Art 14 Snapdragon
On Sun, 22 Dec 2024 01:32:19 +0100,
Kirill A. Korinsky <kirill@korins.ky> wrote:
>
> tech@,
>
> On the last snapshot the HONOR MagicBook Art 14 Snapdragon fails to boot
> with trace:
>
> panic: attempt to access user address 0x0 from EL1
> Stopped at panic+0x140: cmp w21, #0x0
>
> TID PID UID PRFLAGS PFLAGS CPU COMMAND
> db_enter() at panic+0x13c
> panic() at kdata_abort+0x180
> do_el0_sync() at handle_el1h_sync+0x68
> handle_el1h_sync() at qciic_exec+0x2d4
> qciic_exec() at ihidev_intr+0x70
> ihidev_intr() at qcgpio_intr+0xac
> qcgpio_intr() at agintc_irq_handler+0x2bc
>
> ddb{0}>
>
> If I build kernel with enabled debug at ihidev the cause is clear, it can't
> read HID report descriptor from touchpad:
>
> ihidev1 at iic3 addr 0x5dihidev1: HID command I2C_HID_CMD_DESCR at 0x1
> ihidev1: HID descriptor: 1e 00 00 01 df 02 02 00 03 00 2a 00 04 00 20 00 05 00 06 00 cc 35 04 01 01 01 00 00 00 00
> ihidev1: resetting
> ihidev1: HID command I2C_HID_CMD_SET_POWER(0)
> ihidev1: HID command I2C_HID_CMD_RESET
> ihidev1: HID command I2C_HID_REPORT_DESCR at 0x2 with size 735
> ihidev1: HID report descriptor: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff f
> , gpio 896 vendor 0x35cc product 0x104, QTEC0002
>
> Here the diff which introduces a quirk for this machine / touchpad which
> allows me to boot it.
>
> About diff: I've used id code instead of name because QTEC0002 looks wrong.
> I say that because keyboard reads as: vendor 0x49f product 0x5343, QTEC0001
>
And here second quirk for this tocuhpad.
With both quirks system boots and touchpad reads in wsconsctl as:
mouse.type=touchpad
mouse.rawmode=0
mouse.scale=0,4680,0,3120,0,36,33
mouse.reverse_scrolling=0
mouse.tp.tapping=0,0,0
mouse.tp.swapsides=0
mouse.tp.disable=0
mouse.tp.edges=0.0,5.0,0.0,5.0
mouse.scaling=0.164
mouse1.type=touchpad
mouse1.rawmode=1
mouse1.scale=0,0,0,0,0,0,0
mouse1.reverse_scrolling=0
mouse1.scaling=1.000
mouse2.type=touch-panel
mouse2.rawmode=1
mouse2.scale=0,3120,0,2080,0,0,0
mouse2.reverse_scrolling=0
mouse2.scaling=1.000
and it somehow works. Somehow means that I can move coursor in X11
intermittently for short period of time, like few seconds, after I touch
touch a screen.
anyway, I not able to move coursor in X11. I was able before xeonodm starts,
but not when I see login screen. Touch screen works.
When it happens, I do have in logs lines like this:
Dec 22 03:08:12 honor /bsd: ihidev2: ihidev_intr: hid input (rep 16): 10 a5 45 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Dec 22 03:08:12 honor /bsd: ihidev1: ihidev_intr: invalid packet size (65535 vs. 42)
Dec 22 03:08:13 honor /bsd: ihidev2: ihidev_intr: hid input (rep 16): 10 a5 45 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Dec 22 03:08:13 honor /bsd: ihidev1: ihidev_intr: invalid packet size (65535 vs. 42)
Dec 22 03:08:14 honor /bsd: ihidev2: ihidev_intr: hid input (rep 16): 10 a5 45 02 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Dec 22 03:08:14 honor /bsd: ihidev1: ihidev_intr: invalid packet size (65535 vs. 42)
Where ihidev1 is touchpad and ihidev2 is touchscreen.
Index: sys/dev/i2c/ihidev.c
===================================================================
RCS file: /home/cvs/src/sys/dev/i2c/ihidev.c,v
diff -u -p -r1.33 ihidev.c
--- sys/dev/i2c/ihidev.c 18 Oct 2024 12:53:49 -0000 1.33
+++ sys/dev/i2c/ihidev.c 22 Dec 2024 02:21:10 -0000
@@ -61,6 +61,7 @@ static int I2C_HID_POWER_ON = 0x0;
static int I2C_HID_POWER_OFF = 0x1;
int ihidev_match(struct device *, void *, void *);
+int ihidev_quirks(struct ihidev_softc *);
void ihidev_attach(struct device *, struct device *, void *);
int ihidev_detach(struct device *, int);
int ihidev_activate(struct device *, int);
@@ -75,6 +76,21 @@ int ihidev_maxrepid(void *buf, int len);
int ihidev_print(void *aux, const char *pnp);
int ihidev_submatch(struct device *parent, void *cf, void *aux);
+#define IHIDEV_QUIRK_SKIP_RESET 0x1
+#define IHIDEV_QUIRK_RE_POWER_ON 0x2
+#define IHIDEV_QUIRK_SKIP_POWER_OFF 0x4
+
+const struct ihidev_quirks {
+ uint16_t ihq_vid;
+ uint16_t ihq_pid;
+ int ihq_quirks;
+} ihidev_devs[] = {
+ /* HONOR MagicBook Art 14 Touchpad (QTEC0002) */
+ { 0x35cc, 0x0104,
+ IHIDEV_QUIRK_SKIP_RESET | IHIDEV_QUIRK_RE_POWER_ON |
+ IHIDEV_QUIRK_SKIP_POWER_OFF },
+};
+
const struct cfattach ihidev_ca = {
sizeof(struct ihidev_softc),
ihidev_match,
@@ -98,6 +114,19 @@ ihidev_match(struct device *parent, void
return (0);
}
+int
+ihidev_quirks(struct ihidev_softc *sc)
+{
+ const struct ihidev_quirks *q;
+ int i, nent = nitems(ihidev_devs);
+
+ for (i = 0, q = ihidev_devs; i < nent; i++, q++)
+ if (q->ihq_vid == sc->sc_vid && q->ihq_pid == sc->sc_pid)
+ return (q->ihq_quirks);
+
+ return (0);
+}
+
void
ihidev_attach(struct device *parent, struct device *self, void *aux)
{
@@ -597,6 +626,13 @@ ihidev_hid_desc_parse(struct ihidev_soft
return (1);
}
+ sc->sc_vid = letoh16(sc->hid_desc.wVendorID);
+ sc->sc_pid = letoh16(sc->hid_desc.wProductID);
+ sc->sc_quirks = ihidev_quirks(sc);
+
+ if (sc->sc_quirks & IHIDEV_QUIRK_SKIP_RESET)
+ goto skip_rest;
+
while (retries-- > 0) {
if (ihidev_reset(sc)) {
if (retries == 0)
@@ -608,6 +644,7 @@ ihidev_hid_desc_parse(struct ihidev_soft
break;
}
+skip_rest:
sc->sc_reportlen = letoh16(sc->hid_desc.wReportDescLength);
sc->sc_report = malloc(sc->sc_reportlen, M_DEVBUF, M_WAITOK | M_ZERO);
@@ -616,6 +653,10 @@ ihidev_hid_desc_parse(struct ihidev_soft
sc->sc_dev.dv_xname);
return (1);
}
+
+ if (sc->sc_quirks & IHIDEV_QUIRK_RE_POWER_ON)
+ if (ihidev_poweron(sc))
+ return (1);
return (0);
}
Index: sys/dev/i2c/ihidev.h
===================================================================
RCS file: /home/cvs/src/sys/dev/i2c/ihidev.h,v
diff -u -p -r1.9 ihidev.h
--- sys/dev/i2c/ihidev.h 3 Sep 2022 15:48:16 -0000 1.9
+++ sys/dev/i2c/ihidev.h 22 Dec 2024 02:20:20 -0000
@@ -93,6 +93,10 @@ struct ihidev_softc {
int sc_fastpoll;
struct timeout sc_timer;
int sc_dying;
+
+ uint16_t sc_vid;
+ uint16_t sc_pid;
+ int sc_quirks;
};
struct ihidev {
--
wbr, Kirill
Fix boot on HONOR MagicBook Art 14 Snapdragon