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linux/drivers/gpu/drm/nouveau/include/nvkm/subdev/gpio.h

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drm/nouveau/gpio: namespace + nvidia gpu names (no binary change) The namespace of NVKM is being changed to nvkm_ instead of nouveau_, which will be used for the DRM part of the driver. This is being done in order to make it very clear as to what part of the driver a given symbol belongs to, and as a minor step towards splitting the DRM driver out to be able to stand on its own (for virt). Because there's already a large amount of churn here anyway, this is as good a time as any to also switch to NVIDIA's device and chipset naming to ease collaboration with them. A comparison of objdump disassemblies proves no code changes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-14 05:02:59 +00:00
#ifndef __NVKM_GPIO_H__
#define __NVKM_GPIO_H__
drm/nouveau/gpio: port gpio to subdev interfaces v2: Ben Skeggs <bskeggs@redhat.com> - rebase on top of v3.6-rc6 with gpio reset patch integrated already Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-07-10 02:20:17 +00:00
#include <core/subdev.h>
drm/nouveau/gpio: use event interfaces for interrupt signalling Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-02-03 02:56:16 +00:00
#include <core/event.h>
drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues - moves out of nouveau_bios.c and demagics the logical state definitions - simplifies chipset-specific driver interface - makes most of gpio irq handling common, will use for nv4x hpd later - api extended to allow both direct gpio access, and access using the logical function states - api extended to allow for future use of gpio extender chips - pre-nv50 was handled very badly, the main issue being that all GPIOs were being treated as output-only. - fixes nvd0 so gpio changes actually stick, magic reg needs bashing Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-11-21 06:41:48 +00:00
drm/nouveau/gpio: port gpio to subdev interfaces v2: Ben Skeggs <bskeggs@redhat.com> - rebase on top of v3.6-rc6 with gpio reset patch integrated already Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-07-10 02:20:17 +00:00
#include <subdev/bios.h>
#include <subdev/bios/gpio.h>
drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues - moves out of nouveau_bios.c and demagics the logical state definitions - simplifies chipset-specific driver interface - makes most of gpio irq handling common, will use for nv4x hpd later - api extended to allow both direct gpio access, and access using the logical function states - api extended to allow for future use of gpio extender chips - pre-nv50 was handled very badly, the main issue being that all GPIOs were being treated as output-only. - fixes nvd0 so gpio changes actually stick, magic reg needs bashing Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-11-21 06:41:48 +00:00
drm/nouveau/core: rework event interface This is a lot of prep-work for being able to send event notifications back to userspace. Events now contain data, rather than a "something just happened" signal. Handler data is now embedded into a containing structure, rather than being kmalloc()'d, and can optionally have the notify routine handled in a workqueue. Various races between suspend/unload with display HPD/DP IRQ handlers automagically solved as a result. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-09 18:10:20 +00:00
struct nvkm_gpio_ntfy_req {
#define NVKM_GPIO_HI 0x01
#define NVKM_GPIO_LO 0x02
#define NVKM_GPIO_TOGGLED 0x03
u8 mask;
u8 line;
};
struct nvkm_gpio_ntfy_rep {
u8 mask;
drm/nouveau/gpio: send separate event types for high/low transitions Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-05-13 05:54:17 +00:00
};
drm/nouveau/gpio: namespace + nvidia gpu names (no binary change) The namespace of NVKM is being changed to nvkm_ instead of nouveau_, which will be used for the DRM part of the driver. This is being done in order to make it very clear as to what part of the driver a given symbol belongs to, and as a minor step towards splitting the DRM driver out to be able to stand on its own (for virt). Because there's already a large amount of churn here anyway, this is as good a time as any to also switch to NVIDIA's device and chipset naming to ease collaboration with them. A comparison of objdump disassemblies proves no code changes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-14 05:02:59 +00:00
struct nvkm_gpio {
drm/nouveau/gpio: convert to new-style nvkm_subdev Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-20 04:54:20 +00:00
const struct nvkm_gpio_func *func;
drm/nouveau/gpio: cosmetic changes This is purely preparation for upcoming commits, there should be no code changes here. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-20 04:54:06 +00:00
struct nvkm_subdev subdev;
drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues - moves out of nouveau_bios.c and demagics the logical state definitions - simplifies chipset-specific driver interface - makes most of gpio irq handling common, will use for nv4x hpd later - api extended to allow both direct gpio access, and access using the logical function states - api extended to allow for future use of gpio extender chips - pre-nv50 was handled very badly, the main issue being that all GPIOs were being treated as output-only. - fixes nvd0 so gpio changes actually stick, magic reg needs bashing Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-11-21 06:41:48 +00:00
drm/nouveau/core: rework event interface This is a lot of prep-work for being able to send event notifications back to userspace. Events now contain data, rather than a "something just happened" signal. Handler data is now embedded into a containing structure, rather than being kmalloc()'d, and can optionally have the notify routine handled in a workqueue. Various races between suspend/unload with display HPD/DP IRQ handlers automagically solved as a result. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-09 18:10:20 +00:00
struct nvkm_event event;
drm/nouveau/gpio: port gpio to subdev interfaces v2: Ben Skeggs <bskeggs@redhat.com> - rebase on top of v3.6-rc6 with gpio reset patch integrated already Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-07-10 02:20:17 +00:00
};
drm/nouveau/gpio: convert to new-style nvkm_subdev Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-08-20 04:54:20 +00:00
void nvkm_gpio_reset(struct nvkm_gpio *, u8 func);
int nvkm_gpio_find(struct nvkm_gpio *, int idx, u8 tag, u8 line,
struct dcb_gpio_func *);
int nvkm_gpio_set(struct nvkm_gpio *, int idx, u8 tag, u8 line, int state);
int nvkm_gpio_get(struct nvkm_gpio *, int idx, u8 tag, u8 line);
int nv10_gpio_new(struct nvkm_device *, int, struct nvkm_gpio **);
int nv50_gpio_new(struct nvkm_device *, int, struct nvkm_gpio **);
int g94_gpio_new(struct nvkm_device *, int, struct nvkm_gpio **);
int gf119_gpio_new(struct nvkm_device *, int, struct nvkm_gpio **);
int gk104_gpio_new(struct nvkm_device *, int, struct nvkm_gpio **);
drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues - moves out of nouveau_bios.c and demagics the logical state definitions - simplifies chipset-specific driver interface - makes most of gpio irq handling common, will use for nv4x hpd later - api extended to allow both direct gpio access, and access using the logical function states - api extended to allow for future use of gpio extender chips - pre-nv50 was handled very badly, the main issue being that all GPIOs were being treated as output-only. - fixes nvd0 so gpio changes actually stick, magic reg needs bashing Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-11-21 06:41:48 +00:00
#endif
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