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bcm5974(4): add support for devices attached over SPI bus

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Reviewed by:	wulf
This commit is contained in:
Val Packett 2023-08-20 12:53:32 +03:00 committed by Vladimir Kondratyev
parent 62aa7ab939
commit 1c4edee342
1 changed files with 92 additions and 7 deletions
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99
sys/dev/hid/bcm5974.c
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@ -52,7 +52,7 @@
#include "usbdevs.h"
#define BCM5974_BUFFER_MAX (248 * 4) /* 4 Type4 SPI frames */
#define BCM5974_BUFFER_MAX (246 * 2) /* 2 Type4 SPI frames */
#define BCM5974_TLC_PAGE HUP_GENERIC_DESKTOP
#define BCM5974_TLC_USAGE HUG_MOUSE
@ -208,7 +208,11 @@ enum {
BCM5974_FLAG_WELLSPRING7,
BCM5974_FLAG_WELLSPRING7A,
BCM5974_FLAG_WELLSPRING8,
BCM5974_FLAG_WELLSPRING9,
BCM5974_FLAG_WELLSPRING9_MODEL3,
BCM5974_FLAG_WELLSPRING9_MODEL4,
#define BCM5974_FLAG_WELLSPRING9_MODEL_SPI BCM5974_FLAG_WELLSPRING9_MODEL4
BCM5974_FLAG_WELLSPRING9_MODEL5,
BCM5974_FLAG_WELLSPRING9_MODEL6,
BCM5974_FLAG_MAGIC_TRACKPAD2_USB,
BCM5974_FLAG_MAX,
};
@ -352,7 +356,7 @@ static const struct bcm5974_dev_params bcm5974_dev_params[BCM5974_FLAG_MAX] = {
* No scientific measurements have been done :) but a really hard press
* results in a value around 3500 on model 4.
*/
[BCM5974_FLAG_WELLSPRING9] = {
[BCM5974_FLAG_WELLSPRING9_MODEL3] = {
.tp = tp + TYPE4,
.p = { SN_PRESSURE, 0, 4096, 4096 },
.w = { SN_WIDTH, 0, 2048, 0 },
@ -361,6 +365,33 @@ static const struct bcm5974_dev_params bcm5974_dev_params[BCM5974_FLAG_MAX] = {
.o = { SN_ORIENT,
-MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
},
[BCM5974_FLAG_WELLSPRING9_MODEL4] = {
.tp = tp + TYPE4,
.p = { SN_PRESSURE, 0, 4096, 4096 },
.w = { SN_WIDTH, 0, 2048, 0 },
.x = { SN_COORD, -5087, 5579, 105 },
.y = { SN_COORD, -182, 6089, 75 },
.o = { SN_ORIENT,
-MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
},
[BCM5974_FLAG_WELLSPRING9_MODEL5] = {
.tp = tp + TYPE4,
.p = { SN_PRESSURE, 0, 4096, 4096 },
.w = { SN_WIDTH, 0, 2048, 0 },
.x = { SN_COORD, -6243, 6749, 105 },
.y = { SN_COORD, -170, 7685, 75 },
.o = { SN_ORIENT,
-MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
},
[BCM5974_FLAG_WELLSPRING9_MODEL6] = {
.tp = tp + TYPE4,
.p = { SN_PRESSURE, 0, 4096, 4096 },
.w = { SN_WIDTH, 0, 2048, 0 },
.x = { SN_COORD, -7456, 7976, 105 },
.y = { SN_COORD, -163, 9283, 75 },
.o = { SN_ORIENT,
-MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
},
[BCM5974_FLAG_MAGIC_TRACKPAD2_USB] = {
.tp = tp + TYPE_MT2U,
.p = { SN_PRESSURE, 0, 256, 256 },
@ -376,6 +407,12 @@ static const struct bcm5974_dev_params bcm5974_dev_params[BCM5974_FLAG_MAX] = {
HID_TLC(BCM5974_TLC_PAGE, BCM5974_TLC_USAGE), \
}
#define APPLE_HID "APP000D"
#define BCM5974_DEV_SPI(hid, i) { \
HID_BUS(BUS_SPI), HID_PNP(hid), HID_DRIVER_INFO(i), \
HID_TLC(BCM5974_TLC_PAGE, BCM5974_TLC_USAGE), \
}
static const struct hid_device_id bcm5974_devs[] = {
/* MacbookAir1.1 */
BCM5974_DEV(APPLE, WELLSPRING_ANSI, BCM5974_FLAG_WELLSPRING1),
@ -439,14 +476,20 @@ static const struct hid_device_id bcm5974_devs[] = {
BCM5974_DEV(APPLE, WELLSPRING8_JIS, BCM5974_FLAG_WELLSPRING8),
/* MacbookPro12,1 MacbookPro11,4 */
BCM5974_DEV(APPLE, WELLSPRING9_ANSI, BCM5974_FLAG_WELLSPRING9),
BCM5974_DEV(APPLE, WELLSPRING9_ISO, BCM5974_FLAG_WELLSPRING9),
BCM5974_DEV(APPLE, WELLSPRING9_JIS, BCM5974_FLAG_WELLSPRING9),
BCM5974_DEV(APPLE, WELLSPRING9_ANSI, BCM5974_FLAG_WELLSPRING9_MODEL3),
BCM5974_DEV(APPLE, WELLSPRING9_ISO, BCM5974_FLAG_WELLSPRING9_MODEL3),
BCM5974_DEV(APPLE, WELLSPRING9_JIS, BCM5974_FLAG_WELLSPRING9_MODEL3),
/* Generic SPI device */
BCM5974_DEV_SPI(APPLE_HID, BCM5974_FLAG_WELLSPRING9_MODEL_SPI),
/* External "Magic" devices */
BCM5974_DEV(APPLE, MAGIC_TRACKPAD2, BCM5974_FLAG_MAGIC_TRACKPAD2_USB),
};
#define BCM5974_WELLSPRING9_RDESC_SIZE 110
#define BCM5974_WELLSPRING9_MODEL_OFFSET 106
struct bcm5974_softc {
device_t sc_dev;
struct evdev_dev *sc_evdev;
@ -593,6 +636,44 @@ bcm5974_set_device_mode(struct bcm5974_softc *sc, bool on)
return (err);
}
static uintptr_t
bcm5974_get_wsp9_model(device_t dev)
{
const struct hid_device_info *hw = hid_get_device_info(dev);
static uint8_t rdesc[BCM5974_WELLSPRING9_RDESC_SIZE];
uint8_t model_byte = 0;
bus_topo_assert();
if (hw->rdescsize == sizeof(rdesc) &&
hid_get_rdesc(dev, rdesc, sizeof(rdesc)) == 0) {
model_byte = rdesc[BCM5974_WELLSPRING9_MODEL_OFFSET];
switch (model_byte) {
case 3:
/* MacbookPro12,1 MacbookPro11,4 */
return (BCM5974_FLAG_WELLSPRING9_MODEL3);
case 4:
/* Macbook8,1 Macbook9,1 Macbook10,1 */
return (BCM5974_FLAG_WELLSPRING9_MODEL4);
case 5:
/*
* MacbookPro13,1 MacbookPro13,2
* MacbookPro14,1 MacbookPro14,2
*/
return (BCM5974_FLAG_WELLSPRING9_MODEL5);
case 6:
/* MacbookPro13,3 MacbookPro14,3 */
return (BCM5974_FLAG_WELLSPRING9_MODEL6);
}
}
device_printf(dev, "Unexpected trackpad descriptor len=%u model_byte="
"%u, not extracting model\n", hw->rdescsize, model_byte);
/* Fallback for unknown SPI versions */
return (BCM5974_FLAG_WELLSPRING9_MODEL_SPI);
}
static void
bcm5974_identify(driver_t *driver, device_t parent)
{
@ -631,6 +712,7 @@ bcm5974_attach(device_t dev)
{
struct bcm5974_softc *sc = device_get_softc(dev);
const struct hid_device_info *hw = hid_get_device_info(dev);
uintptr_t drv_info;
int err;
DPRINTFN(BCM5974_LLEVEL_INFO, "sc=%p\n", sc);
@ -638,7 +720,10 @@ bcm5974_attach(device_t dev)
sc->sc_dev = dev;
/* get device specific configuration */
sc->sc_params = bcm5974_dev_params + hidbus_get_driver_info(dev);
drv_info = hidbus_get_driver_info(dev);
if (drv_info == BCM5974_FLAG_WELLSPRING9_MODEL_SPI)
drv_info = bcm5974_get_wsp9_model(dev);
sc->sc_params = bcm5974_dev_params + drv_info;
sc->sc_evdev = evdev_alloc();
evdev_set_name(sc->sc_evdev, device_get_desc(dev));