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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/4 * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>5 */6 7#ifndef __TIDSS_IRQ_H__8#define __TIDSS_IRQ_H__9 10#include <linux/types.h>11 12#include "tidss_drv.h"13 14/*15 * The IRQ status from various DISPC IRQ registers are packed into a single16 * value, where the bits are defined as follows:17 *18 * bit group |dev|wb |mrg0|mrg1|mrg2|mrg3|plane0-3| <unused> |19 * bit use |D |fou|FEOL|FEOL|FEOL|FEOL| UUUU | |20 * bit number|0 |1-3|4-7 |8-11| 12-19 | 20-23 | 24-31 |21 *22 * device bits: D = OCP error23 * WB bits: f = frame done wb, o = wb buffer overflow,24 * u = wb buffer uncomplete25 * vp bits: F = frame done, E = vsync even, O = vsync odd, L = sync lost26 * plane bits: U = fifo underflow27 */28 29#define DSS_IRQ_DEVICE_OCP_ERR BIT(0)30 31#define DSS_IRQ_DEVICE_FRAMEDONEWB BIT(1)32#define DSS_IRQ_DEVICE_WBBUFFEROVERFLOW BIT(2)33#define DSS_IRQ_DEVICE_WBUNCOMPLETEERROR BIT(3)34#define DSS_IRQ_DEVICE_WB_MASK GENMASK(3, 1)35 36#define DSS_IRQ_VP_BIT_N(ch, bit) (4 + 4 * (ch) + (bit))37#define DSS_IRQ_PLANE_BIT_N(plane, bit) \38 (DSS_IRQ_VP_BIT_N(TIDSS_MAX_PORTS, 0) + 1 * (plane) + (bit))39 40#define DSS_IRQ_VP_BIT(ch, bit) BIT(DSS_IRQ_VP_BIT_N((ch), (bit)))41#define DSS_IRQ_PLANE_BIT(plane, bit) \42 BIT(DSS_IRQ_PLANE_BIT_N((plane), (bit)))43 44static inline dispc_irq_t DSS_IRQ_VP_MASK(u32 ch)45{46 return GENMASK(DSS_IRQ_VP_BIT_N((ch), 3), DSS_IRQ_VP_BIT_N((ch), 0));47}48 49static inline dispc_irq_t DSS_IRQ_PLANE_MASK(u32 plane)50{51 return GENMASK(DSS_IRQ_PLANE_BIT_N((plane), 0),52 DSS_IRQ_PLANE_BIT_N((plane), 0));53}54 55#define DSS_IRQ_VP_FRAME_DONE(ch) DSS_IRQ_VP_BIT((ch), 0)56#define DSS_IRQ_VP_VSYNC_EVEN(ch) DSS_IRQ_VP_BIT((ch), 1)57#define DSS_IRQ_VP_VSYNC_ODD(ch) DSS_IRQ_VP_BIT((ch), 2)58#define DSS_IRQ_VP_SYNC_LOST(ch) DSS_IRQ_VP_BIT((ch), 3)59 60#define DSS_IRQ_PLANE_FIFO_UNDERFLOW(plane) DSS_IRQ_PLANE_BIT((plane), 0)61 62struct drm_crtc;63struct drm_device;64 65struct tidss_device;66 67void tidss_irq_enable_vblank(struct drm_crtc *crtc);68void tidss_irq_disable_vblank(struct drm_crtc *crtc);69 70int tidss_irq_install(struct drm_device *ddev, unsigned int irq);71void tidss_irq_uninstall(struct drm_device *ddev);72 73void tidss_irq_resume(struct tidss_device *tidss);74 75#endif76