diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c index fd9f18144c26..dad942be6679 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c @@ -21,12 +21,86 @@ */ #define nvkm_uconn(p) container_of((p), struct nvkm_conn, object) #include "conn.h" +#include "outp.h" +#include <core/client.h> +#include <core/event.h> #include <subdev/gpio.h> +#include <subdev/i2c.h> #include <nvif/if0011.h> static int +nvkm_uconn_uevent_aux(struct nvkm_object *object, u64 token, u32 bits) +{ + union nvif_conn_event_args args; + + args.v0.version = 0; + args.v0.types = 0; + if (bits & NVKM_I2C_PLUG) + args.v0.types |= NVIF_CONN_EVENT_V0_PLUG; + if (bits & NVKM_I2C_UNPLUG) + args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG; + if (bits & NVKM_I2C_IRQ) + args.v0.types |= NVIF_CONN_EVENT_V0_IRQ; + + return object->client->event(token, &args, sizeof(args.v0)); +} + +static int +nvkm_uconn_uevent_gpio(struct nvkm_object *object, u64 token, u32 bits) +{ + union nvif_conn_event_args args; + + args.v0.version = 0; + args.v0.types = 0; + if (bits & NVKM_GPIO_HI) + args.v0.types |= NVIF_CONN_EVENT_V0_PLUG; + if (bits & NVKM_GPIO_LO) + args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG; + + return object->client->event(token, &args, sizeof(args.v0)); +} + +static int +nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent) +{ + struct nvkm_conn *conn = nvkm_uconn(object); + struct nvkm_device *device = conn->disp->engine.subdev.device; + struct nvkm_outp *outp; + union nvif_conn_event_args *args = argv; + u64 bits = 0; + + if (!uevent) { + if (conn->info.hpd == DCB_GPIO_UNUSED) + return -ENOSYS; + return 0; + } + + if (argc != sizeof(args->v0) || args->v0.version != 0) + return -ENOSYS; + + list_for_each_entry(outp, &conn->disp->outps, head) { + if (outp->info.connector == conn->index && outp->dp.aux) { + if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_I2C_PLUG; + if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG; + if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_I2C_IRQ; + + return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits, + nvkm_uconn_uevent_aux); + } + } + + if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_GPIO_HI; + if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_GPIO_LO; + if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ) + return -EINVAL; + + return nvkm_uevent_add(uevent, &device->gpio->event, conn->info.hpd, bits, + nvkm_uconn_uevent_gpio); +} + +static int nvkm_uconn_mthd_hpd_status(struct nvkm_conn *conn, void *argv, u32 argc) { struct nvkm_gpio *gpio = conn->disp->engine.subdev.device->gpio; @@ -82,6 +156,7 @@ static const struct nvkm_object_func nvkm_uconn = { .dtor = nvkm_uconn_dtor, .mthd = nvkm_uconn_mthd, + .uevent = nvkm_uconn_uevent, }; int |