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/* 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);
void tidss_irq_preinstall(struct drm_device *ddev);
int tidss_irq_postinstall(struct drm_device *ddev);
void tidss_irq_uninstall(struct drm_device *ddev);
irqreturn_t tidss_irq_handler(int irq, void *arg);
void tidss_irq_resume(struct tidss_device *tidss);
#endif
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