/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com> */ #ifndef __TIDSS_IRQ_H__ #define __TIDSS_IRQ_H__ #include <linux/types.h> #include "tidss_drv.h" /* * The IRQ status from various DISPC IRQ registers are packed into a single * value, where the bits are defined as follows: * * bit group |dev|wb |mrg0|mrg1|mrg2|mrg3|plane0-3| <unused> | * bit use |D |fou|FEOL|FEOL|FEOL|FEOL| UUUU | | * bit number|0 |1-3|4-7 |8-11| 12-19 | 20-23 | 24-31 | * * device bits: D = OCP error * WB bits: f = frame done wb, o = wb buffer overflow, * u = wb buffer uncomplete * vp bits: F = frame done, E = vsync even, O = vsync odd, L = sync lost * plane bits: U = fifo underflow */ #define DSS_IRQ_DEVICE_OCP_ERR BIT(0) #define DSS_IRQ_DEVICE_FRAMEDONEWB BIT(1) #define DSS_IRQ_DEVICE_WBBUFFEROVERFLOW BIT(2) #define DSS_IRQ_DEVICE_WBUNCOMPLETEERROR BIT(3) #define DSS_IRQ_DEVICE_WB_MASK GENMASK(3, 1) #define DSS_IRQ_VP_BIT_N(ch, bit) (4 + 4 * (ch) + (bit)) #define DSS_IRQ_PLANE_BIT_N(plane, bit) \ (DSS_IRQ_VP_BIT_N(TIDSS_MAX_PORTS, 0) + 1 * (plane) + (bit)) #define DSS_IRQ_VP_BIT(ch, bit) BIT(DSS_IRQ_VP_BIT_N((ch), (bit))) #define DSS_IRQ_PLANE_BIT(plane, bit) \ BIT(DSS_IRQ_PLANE_BIT_N((plane), (bit))) static inline dispc_irq_t DSS_IRQ_VP_MASK(u32 ch) { return GENMASK(DSS_IRQ_VP_BIT_N((ch), 3), DSS_IRQ_VP_BIT_N((ch), 0)); } static inline dispc_irq_t DSS_IRQ_PLANE_MASK(u32 plane) { return GENMASK(DSS_IRQ_PLANE_BIT_N((plane), 0), DSS_IRQ_PLANE_BIT_N((plane), 0)); } #define DSS_IRQ_VP_FRAME_DONE(ch) DSS_IRQ_VP_BIT((ch), 0) #define DSS_IRQ_VP_VSYNC_EVEN(ch) DSS_IRQ_VP_BIT((ch), 1) #define DSS_IRQ_VP_VSYNC_ODD(ch) DSS_IRQ_VP_BIT((ch), 2) #define DSS_IRQ_VP_SYNC_LOST(ch) DSS_IRQ_VP_BIT((ch), 3) #define DSS_IRQ_PLANE_FIFO_UNDERFLOW(plane) DSS_IRQ_PLANE_BIT((plane), 0) struct drm_crtc; struct drm_device; struct tidss_device; void tidss_irq_enable_vblank(struct drm_crtc *crtc); void tidss_irq_disable_vblank(struct drm_crtc *crtc); int tidss_irq_install(struct drm_device *ddev, unsigned int irq); void tidss_irq_uninstall(struct drm_device *ddev); void tidss_irq_resume(struct tidss_device *tidss); #endif