1e7b8153eSMauro Carvalho Chehab // SPDX-License-Identifier: GPL-2.0
2e7b8153eSMauro Carvalho Chehab /*
3e7b8153eSMauro Carvalho Chehab * Copyright (C) STMicroelectronics SA 2014
4e7b8153eSMauro Carvalho Chehab * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
5e7b8153eSMauro Carvalho Chehab */
6e7b8153eSMauro Carvalho Chehab
7e7b8153eSMauro Carvalho Chehab #include <linux/errno.h>
8e7b8153eSMauro Carvalho Chehab #include <linux/interrupt.h>
9e7b8153eSMauro Carvalho Chehab #include <linux/kernel.h>
10e7b8153eSMauro Carvalho Chehab #include <linux/module.h>
11e7b8153eSMauro Carvalho Chehab #include <linux/of.h>
12e7b8153eSMauro Carvalho Chehab #include <linux/pm_runtime.h>
13e7b8153eSMauro Carvalho Chehab #include <linux/slab.h>
14e7b8153eSMauro Carvalho Chehab
15e7b8153eSMauro Carvalho Chehab #include <media/v4l2-event.h>
16e7b8153eSMauro Carvalho Chehab #include <media/v4l2-ioctl.h>
17e7b8153eSMauro Carvalho Chehab
18e7b8153eSMauro Carvalho Chehab #include "bdisp.h"
19e7b8153eSMauro Carvalho Chehab
20e7b8153eSMauro Carvalho Chehab #define BDISP_MAX_CTRL_NUM 10
21e7b8153eSMauro Carvalho Chehab
22e7b8153eSMauro Carvalho Chehab #define BDISP_WORK_TIMEOUT ((100 * HZ) / 1000)
23e7b8153eSMauro Carvalho Chehab
24e7b8153eSMauro Carvalho Chehab /* User configuration change */
25e7b8153eSMauro Carvalho Chehab #define BDISP_PARAMS BIT(0) /* Config updated */
26e7b8153eSMauro Carvalho Chehab #define BDISP_SRC_FMT BIT(1) /* Source set */
27e7b8153eSMauro Carvalho Chehab #define BDISP_DST_FMT BIT(2) /* Destination set */
28e7b8153eSMauro Carvalho Chehab #define BDISP_CTX_STOP_REQ BIT(3) /* Stop request */
29e7b8153eSMauro Carvalho Chehab #define BDISP_CTX_ABORT BIT(4) /* Abort while device run */
30e7b8153eSMauro Carvalho Chehab
31e7b8153eSMauro Carvalho Chehab #define BDISP_MIN_W 1
32e7b8153eSMauro Carvalho Chehab #define BDISP_MAX_W 8191
33e7b8153eSMauro Carvalho Chehab #define BDISP_MIN_H 1
34e7b8153eSMauro Carvalho Chehab #define BDISP_MAX_H 8191
35e7b8153eSMauro Carvalho Chehab
36e7b8153eSMauro Carvalho Chehab #define fh_to_ctx(__fh) container_of(__fh, struct bdisp_ctx, fh)
37e7b8153eSMauro Carvalho Chehab
38e7b8153eSMauro Carvalho Chehab enum bdisp_dev_flags {
39e7b8153eSMauro Carvalho Chehab ST_M2M_OPEN, /* Driver opened */
40e7b8153eSMauro Carvalho Chehab ST_M2M_RUNNING, /* HW device running */
41e7b8153eSMauro Carvalho Chehab ST_M2M_SUSPENDED, /* Driver suspended */
42e7b8153eSMauro Carvalho Chehab ST_M2M_SUSPENDING, /* Driver being suspended */
43e7b8153eSMauro Carvalho Chehab };
44e7b8153eSMauro Carvalho Chehab
45e7b8153eSMauro Carvalho Chehab static const struct bdisp_fmt bdisp_formats[] = {
46e7b8153eSMauro Carvalho Chehab /* ARGB888. [31:0] A:R:G:B 8:8:8:8 little endian */
47e7b8153eSMauro Carvalho Chehab {
48e7b8153eSMauro Carvalho Chehab .pixelformat = V4L2_PIX_FMT_ABGR32, /* is actually ARGB */
49e7b8153eSMauro Carvalho Chehab .nb_planes = 1,
50e7b8153eSMauro Carvalho Chehab .bpp = 32,
51e7b8153eSMauro Carvalho Chehab .bpp_plane0 = 32,
52e7b8153eSMauro Carvalho Chehab .w_align = 1,
53e7b8153eSMauro Carvalho Chehab .h_align = 1
54e7b8153eSMauro Carvalho Chehab },
55e7b8153eSMauro Carvalho Chehab /* XRGB888. [31:0] x:R:G:B 8:8:8:8 little endian */
56e7b8153eSMauro Carvalho Chehab {
57e7b8153eSMauro Carvalho Chehab .pixelformat = V4L2_PIX_FMT_XBGR32, /* is actually xRGB */
58e7b8153eSMauro Carvalho Chehab .nb_planes = 1,
59e7b8153eSMauro Carvalho Chehab .bpp = 32,
60e7b8153eSMauro Carvalho Chehab .bpp_plane0 = 32,
61e7b8153eSMauro Carvalho Chehab .w_align = 1,
62e7b8153eSMauro Carvalho Chehab .h_align = 1
63e7b8153eSMauro Carvalho Chehab },
64e7b8153eSMauro Carvalho Chehab /* RGB565. [15:0] R:G:B 5:6:5 little endian */
65e7b8153eSMauro Carvalho Chehab {
66e7b8153eSMauro Carvalho Chehab .pixelformat = V4L2_PIX_FMT_RGB565,
67e7b8153eSMauro Carvalho Chehab .nb_planes = 1,
68e7b8153eSMauro Carvalho Chehab .bpp = 16,
69e7b8153eSMauro Carvalho Chehab .bpp_plane0 = 16,
70e7b8153eSMauro Carvalho Chehab .w_align = 1,
71e7b8153eSMauro Carvalho Chehab .h_align = 1
72e7b8153eSMauro Carvalho Chehab },
73e7b8153eSMauro Carvalho Chehab /* NV12. YUV420SP - 1 plane for Y + 1 plane for (CbCr) */
74e7b8153eSMauro Carvalho Chehab {
75e7b8153eSMauro Carvalho Chehab .pixelformat = V4L2_PIX_FMT_NV12,
76e7b8153eSMauro Carvalho Chehab .nb_planes = 2,
77e7b8153eSMauro Carvalho Chehab .bpp = 12,
78e7b8153eSMauro Carvalho Chehab .bpp_plane0 = 8,
79e7b8153eSMauro Carvalho Chehab .w_align = 2,
80e7b8153eSMauro Carvalho Chehab .h_align = 2
81e7b8153eSMauro Carvalho Chehab },
82e7b8153eSMauro Carvalho Chehab /* RGB888. [23:0] B:G:R 8:8:8 little endian */
83e7b8153eSMauro Carvalho Chehab {
84e7b8153eSMauro Carvalho Chehab .pixelformat = V4L2_PIX_FMT_RGB24,
85e7b8153eSMauro Carvalho Chehab .nb_planes = 1,
86e7b8153eSMauro Carvalho Chehab .bpp = 24,
87e7b8153eSMauro Carvalho Chehab .bpp_plane0 = 24,
88e7b8153eSMauro Carvalho Chehab .w_align = 1,
89e7b8153eSMauro Carvalho Chehab .h_align = 1
90e7b8153eSMauro Carvalho Chehab },
91e7b8153eSMauro Carvalho Chehab /* YU12. YUV420P - 1 plane for Y + 1 plane for Cb + 1 plane for Cr
92e7b8153eSMauro Carvalho Chehab * To keep as the LAST element of this table (no support on capture)
93e7b8153eSMauro Carvalho Chehab */
94e7b8153eSMauro Carvalho Chehab {
95e7b8153eSMauro Carvalho Chehab .pixelformat = V4L2_PIX_FMT_YUV420,
96e7b8153eSMauro Carvalho Chehab .nb_planes = 3,
97e7b8153eSMauro Carvalho Chehab .bpp = 12,
98e7b8153eSMauro Carvalho Chehab .bpp_plane0 = 8,
99e7b8153eSMauro Carvalho Chehab .w_align = 2,
100e7b8153eSMauro Carvalho Chehab .h_align = 2
101e7b8153eSMauro Carvalho Chehab }
102e7b8153eSMauro Carvalho Chehab };
103e7b8153eSMauro Carvalho Chehab
104e7b8153eSMauro Carvalho Chehab /* Default format : HD ARGB32*/
105e7b8153eSMauro Carvalho Chehab #define BDISP_DEF_WIDTH 1920
106e7b8153eSMauro Carvalho Chehab #define BDISP_DEF_HEIGHT 1080
107e7b8153eSMauro Carvalho Chehab
108e7b8153eSMauro Carvalho Chehab static const struct bdisp_frame bdisp_dflt_fmt = {
109e7b8153eSMauro Carvalho Chehab .width = BDISP_DEF_WIDTH,
110e7b8153eSMauro Carvalho Chehab .height = BDISP_DEF_HEIGHT,
111e7b8153eSMauro Carvalho Chehab .fmt = &bdisp_formats[0],
112e7b8153eSMauro Carvalho Chehab .field = V4L2_FIELD_NONE,
113e7b8153eSMauro Carvalho Chehab .bytesperline = BDISP_DEF_WIDTH * 4,
114e7b8153eSMauro Carvalho Chehab .sizeimage = BDISP_DEF_WIDTH * BDISP_DEF_HEIGHT * 4,
115e7b8153eSMauro Carvalho Chehab .colorspace = V4L2_COLORSPACE_REC709,
116e7b8153eSMauro Carvalho Chehab .crop = {0, 0, BDISP_DEF_WIDTH, BDISP_DEF_HEIGHT},
117e7b8153eSMauro Carvalho Chehab .paddr = {0, 0, 0, 0}
118e7b8153eSMauro Carvalho Chehab };
119e7b8153eSMauro Carvalho Chehab
bdisp_ctx_state_lock_set(u32 state,struct bdisp_ctx * ctx)120e7b8153eSMauro Carvalho Chehab static inline void bdisp_ctx_state_lock_set(u32 state, struct bdisp_ctx *ctx)
121e7b8153eSMauro Carvalho Chehab {
122e7b8153eSMauro Carvalho Chehab unsigned long flags;
123e7b8153eSMauro Carvalho Chehab
124e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&ctx->bdisp_dev->slock, flags);
125e7b8153eSMauro Carvalho Chehab ctx->state |= state;
126e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&ctx->bdisp_dev->slock, flags);
127e7b8153eSMauro Carvalho Chehab }
128e7b8153eSMauro Carvalho Chehab
bdisp_ctx_state_lock_clear(u32 state,struct bdisp_ctx * ctx)129e7b8153eSMauro Carvalho Chehab static inline void bdisp_ctx_state_lock_clear(u32 state, struct bdisp_ctx *ctx)
130e7b8153eSMauro Carvalho Chehab {
131e7b8153eSMauro Carvalho Chehab unsigned long flags;
132e7b8153eSMauro Carvalho Chehab
133e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&ctx->bdisp_dev->slock, flags);
134e7b8153eSMauro Carvalho Chehab ctx->state &= ~state;
135e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&ctx->bdisp_dev->slock, flags);
136e7b8153eSMauro Carvalho Chehab }
137e7b8153eSMauro Carvalho Chehab
bdisp_ctx_state_is_set(u32 mask,struct bdisp_ctx * ctx)138e7b8153eSMauro Carvalho Chehab static inline bool bdisp_ctx_state_is_set(u32 mask, struct bdisp_ctx *ctx)
139e7b8153eSMauro Carvalho Chehab {
140e7b8153eSMauro Carvalho Chehab unsigned long flags;
141e7b8153eSMauro Carvalho Chehab bool ret;
142e7b8153eSMauro Carvalho Chehab
143e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&ctx->bdisp_dev->slock, flags);
144e7b8153eSMauro Carvalho Chehab ret = (ctx->state & mask) == mask;
145e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&ctx->bdisp_dev->slock, flags);
146e7b8153eSMauro Carvalho Chehab
147e7b8153eSMauro Carvalho Chehab return ret;
148e7b8153eSMauro Carvalho Chehab }
149e7b8153eSMauro Carvalho Chehab
bdisp_find_fmt(u32 pixelformat)150e7b8153eSMauro Carvalho Chehab static const struct bdisp_fmt *bdisp_find_fmt(u32 pixelformat)
151e7b8153eSMauro Carvalho Chehab {
152e7b8153eSMauro Carvalho Chehab const struct bdisp_fmt *fmt;
153e7b8153eSMauro Carvalho Chehab unsigned int i;
154e7b8153eSMauro Carvalho Chehab
155e7b8153eSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(bdisp_formats); i++) {
156e7b8153eSMauro Carvalho Chehab fmt = &bdisp_formats[i];
157e7b8153eSMauro Carvalho Chehab if (fmt->pixelformat == pixelformat)
158e7b8153eSMauro Carvalho Chehab return fmt;
159e7b8153eSMauro Carvalho Chehab }
160e7b8153eSMauro Carvalho Chehab
161e7b8153eSMauro Carvalho Chehab return NULL;
162e7b8153eSMauro Carvalho Chehab }
163e7b8153eSMauro Carvalho Chehab
ctx_get_frame(struct bdisp_ctx * ctx,enum v4l2_buf_type type)164e7b8153eSMauro Carvalho Chehab static struct bdisp_frame *ctx_get_frame(struct bdisp_ctx *ctx,
165e7b8153eSMauro Carvalho Chehab enum v4l2_buf_type type)
166e7b8153eSMauro Carvalho Chehab {
167e7b8153eSMauro Carvalho Chehab switch (type) {
168e7b8153eSMauro Carvalho Chehab case V4L2_BUF_TYPE_VIDEO_OUTPUT:
169e7b8153eSMauro Carvalho Chehab return &ctx->src;
170e7b8153eSMauro Carvalho Chehab case V4L2_BUF_TYPE_VIDEO_CAPTURE:
171e7b8153eSMauro Carvalho Chehab return &ctx->dst;
172e7b8153eSMauro Carvalho Chehab default:
173e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev,
174e7b8153eSMauro Carvalho Chehab "Wrong buffer/video queue type (%d)\n", type);
175e7b8153eSMauro Carvalho Chehab break;
176e7b8153eSMauro Carvalho Chehab }
177e7b8153eSMauro Carvalho Chehab
178e7b8153eSMauro Carvalho Chehab return ERR_PTR(-EINVAL);
179e7b8153eSMauro Carvalho Chehab }
180e7b8153eSMauro Carvalho Chehab
bdisp_job_finish(struct bdisp_ctx * ctx,int vb_state)181e7b8153eSMauro Carvalho Chehab static void bdisp_job_finish(struct bdisp_ctx *ctx, int vb_state)
182e7b8153eSMauro Carvalho Chehab {
183e7b8153eSMauro Carvalho Chehab struct vb2_v4l2_buffer *src_vb, *dst_vb;
184e7b8153eSMauro Carvalho Chehab
185e7b8153eSMauro Carvalho Chehab if (WARN(!ctx || !ctx->fh.m2m_ctx, "Null hardware context\n"))
186e7b8153eSMauro Carvalho Chehab return;
187e7b8153eSMauro Carvalho Chehab
188e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "%s\n", __func__);
189e7b8153eSMauro Carvalho Chehab
190e7b8153eSMauro Carvalho Chehab src_vb = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
191e7b8153eSMauro Carvalho Chehab dst_vb = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
192e7b8153eSMauro Carvalho Chehab
193e7b8153eSMauro Carvalho Chehab if (src_vb && dst_vb) {
194e7b8153eSMauro Carvalho Chehab dst_vb->vb2_buf.timestamp = src_vb->vb2_buf.timestamp;
195e7b8153eSMauro Carvalho Chehab dst_vb->timecode = src_vb->timecode;
196e7b8153eSMauro Carvalho Chehab dst_vb->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
197e7b8153eSMauro Carvalho Chehab dst_vb->flags |= src_vb->flags &
198e7b8153eSMauro Carvalho Chehab V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
199e7b8153eSMauro Carvalho Chehab
200e7b8153eSMauro Carvalho Chehab v4l2_m2m_buf_done(src_vb, vb_state);
201e7b8153eSMauro Carvalho Chehab v4l2_m2m_buf_done(dst_vb, vb_state);
202e7b8153eSMauro Carvalho Chehab
203e7b8153eSMauro Carvalho Chehab v4l2_m2m_job_finish(ctx->bdisp_dev->m2m.m2m_dev,
204e7b8153eSMauro Carvalho Chehab ctx->fh.m2m_ctx);
205e7b8153eSMauro Carvalho Chehab }
206e7b8153eSMauro Carvalho Chehab }
207e7b8153eSMauro Carvalho Chehab
bdisp_ctx_stop_req(struct bdisp_ctx * ctx)208e7b8153eSMauro Carvalho Chehab static int bdisp_ctx_stop_req(struct bdisp_ctx *ctx)
209e7b8153eSMauro Carvalho Chehab {
210e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *curr_ctx;
211e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = ctx->bdisp_dev;
212e7b8153eSMauro Carvalho Chehab int ret;
213e7b8153eSMauro Carvalho Chehab
214e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "%s\n", __func__);
215e7b8153eSMauro Carvalho Chehab
216e7b8153eSMauro Carvalho Chehab cancel_delayed_work(&bdisp->timeout_work);
217e7b8153eSMauro Carvalho Chehab
218e7b8153eSMauro Carvalho Chehab curr_ctx = v4l2_m2m_get_curr_priv(bdisp->m2m.m2m_dev);
219e7b8153eSMauro Carvalho Chehab if (!test_bit(ST_M2M_RUNNING, &bdisp->state) || (curr_ctx != ctx))
220e7b8153eSMauro Carvalho Chehab return 0;
221e7b8153eSMauro Carvalho Chehab
222e7b8153eSMauro Carvalho Chehab bdisp_ctx_state_lock_set(BDISP_CTX_STOP_REQ, ctx);
223e7b8153eSMauro Carvalho Chehab
224e7b8153eSMauro Carvalho Chehab ret = wait_event_timeout(bdisp->irq_queue,
225e7b8153eSMauro Carvalho Chehab !bdisp_ctx_state_is_set(BDISP_CTX_STOP_REQ, ctx),
226e7b8153eSMauro Carvalho Chehab BDISP_WORK_TIMEOUT);
227e7b8153eSMauro Carvalho Chehab
228e7b8153eSMauro Carvalho Chehab if (!ret) {
229e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "%s IRQ timeout\n", __func__);
230e7b8153eSMauro Carvalho Chehab return -ETIMEDOUT;
231e7b8153eSMauro Carvalho Chehab }
232e7b8153eSMauro Carvalho Chehab
233e7b8153eSMauro Carvalho Chehab return 0;
234e7b8153eSMauro Carvalho Chehab }
235e7b8153eSMauro Carvalho Chehab
__bdisp_job_abort(struct bdisp_ctx * ctx)236e7b8153eSMauro Carvalho Chehab static void __bdisp_job_abort(struct bdisp_ctx *ctx)
237e7b8153eSMauro Carvalho Chehab {
238e7b8153eSMauro Carvalho Chehab int ret;
239e7b8153eSMauro Carvalho Chehab
240e7b8153eSMauro Carvalho Chehab ret = bdisp_ctx_stop_req(ctx);
241e7b8153eSMauro Carvalho Chehab if ((ret == -ETIMEDOUT) || (ctx->state & BDISP_CTX_ABORT)) {
242e7b8153eSMauro Carvalho Chehab bdisp_ctx_state_lock_clear(BDISP_CTX_STOP_REQ | BDISP_CTX_ABORT,
243e7b8153eSMauro Carvalho Chehab ctx);
244e7b8153eSMauro Carvalho Chehab bdisp_job_finish(ctx, VB2_BUF_STATE_ERROR);
245e7b8153eSMauro Carvalho Chehab }
246e7b8153eSMauro Carvalho Chehab }
247e7b8153eSMauro Carvalho Chehab
bdisp_job_abort(void * priv)248e7b8153eSMauro Carvalho Chehab static void bdisp_job_abort(void *priv)
249e7b8153eSMauro Carvalho Chehab {
250e7b8153eSMauro Carvalho Chehab __bdisp_job_abort((struct bdisp_ctx *)priv);
251e7b8153eSMauro Carvalho Chehab }
252e7b8153eSMauro Carvalho Chehab
bdisp_get_addr(struct bdisp_ctx * ctx,struct vb2_buffer * vb,struct bdisp_frame * frame,dma_addr_t * paddr)253e7b8153eSMauro Carvalho Chehab static int bdisp_get_addr(struct bdisp_ctx *ctx, struct vb2_buffer *vb,
254e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame, dma_addr_t *paddr)
255e7b8153eSMauro Carvalho Chehab {
256e7b8153eSMauro Carvalho Chehab if (!vb || !frame)
257e7b8153eSMauro Carvalho Chehab return -EINVAL;
258e7b8153eSMauro Carvalho Chehab
259e7b8153eSMauro Carvalho Chehab paddr[0] = vb2_dma_contig_plane_dma_addr(vb, 0);
260e7b8153eSMauro Carvalho Chehab
261e7b8153eSMauro Carvalho Chehab if (frame->fmt->nb_planes > 1)
262e7b8153eSMauro Carvalho Chehab /* UV (NV12) or U (420P) */
263e7b8153eSMauro Carvalho Chehab paddr[1] = (dma_addr_t)(paddr[0] +
264e7b8153eSMauro Carvalho Chehab frame->bytesperline * frame->height);
265e7b8153eSMauro Carvalho Chehab
266e7b8153eSMauro Carvalho Chehab if (frame->fmt->nb_planes > 2)
267e7b8153eSMauro Carvalho Chehab /* V (420P) */
268e7b8153eSMauro Carvalho Chehab paddr[2] = (dma_addr_t)(paddr[1] +
269e7b8153eSMauro Carvalho Chehab (frame->bytesperline * frame->height) / 4);
270e7b8153eSMauro Carvalho Chehab
271e7b8153eSMauro Carvalho Chehab if (frame->fmt->nb_planes > 3)
272e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "ignoring some planes\n");
273e7b8153eSMauro Carvalho Chehab
274e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev,
275e7b8153eSMauro Carvalho Chehab "%s plane[0]=%pad plane[1]=%pad plane[2]=%pad\n",
276e7b8153eSMauro Carvalho Chehab __func__, &paddr[0], &paddr[1], &paddr[2]);
277e7b8153eSMauro Carvalho Chehab
278e7b8153eSMauro Carvalho Chehab return 0;
279e7b8153eSMauro Carvalho Chehab }
280e7b8153eSMauro Carvalho Chehab
bdisp_get_bufs(struct bdisp_ctx * ctx)281e7b8153eSMauro Carvalho Chehab static int bdisp_get_bufs(struct bdisp_ctx *ctx)
282e7b8153eSMauro Carvalho Chehab {
283e7b8153eSMauro Carvalho Chehab struct bdisp_frame *src, *dst;
284e7b8153eSMauro Carvalho Chehab struct vb2_v4l2_buffer *src_vb, *dst_vb;
285e7b8153eSMauro Carvalho Chehab int ret;
286e7b8153eSMauro Carvalho Chehab
287e7b8153eSMauro Carvalho Chehab src = &ctx->src;
288e7b8153eSMauro Carvalho Chehab dst = &ctx->dst;
289e7b8153eSMauro Carvalho Chehab
290e7b8153eSMauro Carvalho Chehab src_vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
291e7b8153eSMauro Carvalho Chehab ret = bdisp_get_addr(ctx, &src_vb->vb2_buf, src, src->paddr);
292e7b8153eSMauro Carvalho Chehab if (ret)
293e7b8153eSMauro Carvalho Chehab return ret;
294e7b8153eSMauro Carvalho Chehab
295e7b8153eSMauro Carvalho Chehab dst_vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
296e7b8153eSMauro Carvalho Chehab ret = bdisp_get_addr(ctx, &dst_vb->vb2_buf, dst, dst->paddr);
297e7b8153eSMauro Carvalho Chehab if (ret)
298e7b8153eSMauro Carvalho Chehab return ret;
299e7b8153eSMauro Carvalho Chehab
300e7b8153eSMauro Carvalho Chehab dst_vb->vb2_buf.timestamp = src_vb->vb2_buf.timestamp;
301e7b8153eSMauro Carvalho Chehab
302e7b8153eSMauro Carvalho Chehab return 0;
303e7b8153eSMauro Carvalho Chehab }
304e7b8153eSMauro Carvalho Chehab
bdisp_device_run(void * priv)305e7b8153eSMauro Carvalho Chehab static void bdisp_device_run(void *priv)
306e7b8153eSMauro Carvalho Chehab {
307e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = priv;
308e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp;
309e7b8153eSMauro Carvalho Chehab unsigned long flags;
310e7b8153eSMauro Carvalho Chehab int err = 0;
311e7b8153eSMauro Carvalho Chehab
312e7b8153eSMauro Carvalho Chehab if (WARN(!ctx, "Null hardware context\n"))
313e7b8153eSMauro Carvalho Chehab return;
314e7b8153eSMauro Carvalho Chehab
315e7b8153eSMauro Carvalho Chehab bdisp = ctx->bdisp_dev;
316e7b8153eSMauro Carvalho Chehab dev_dbg(bdisp->dev, "%s\n", __func__);
317e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&bdisp->slock, flags);
318e7b8153eSMauro Carvalho Chehab
319e7b8153eSMauro Carvalho Chehab if (bdisp->m2m.ctx != ctx) {
320e7b8153eSMauro Carvalho Chehab dev_dbg(bdisp->dev, "ctx updated: %p -> %p\n",
321e7b8153eSMauro Carvalho Chehab bdisp->m2m.ctx, ctx);
322e7b8153eSMauro Carvalho Chehab ctx->state |= BDISP_PARAMS;
323e7b8153eSMauro Carvalho Chehab bdisp->m2m.ctx = ctx;
324e7b8153eSMauro Carvalho Chehab }
325e7b8153eSMauro Carvalho Chehab
326e7b8153eSMauro Carvalho Chehab if (ctx->state & BDISP_CTX_STOP_REQ) {
327e7b8153eSMauro Carvalho Chehab ctx->state &= ~BDISP_CTX_STOP_REQ;
328e7b8153eSMauro Carvalho Chehab ctx->state |= BDISP_CTX_ABORT;
329e7b8153eSMauro Carvalho Chehab wake_up(&bdisp->irq_queue);
330e7b8153eSMauro Carvalho Chehab goto out;
331e7b8153eSMauro Carvalho Chehab }
332e7b8153eSMauro Carvalho Chehab
333e7b8153eSMauro Carvalho Chehab err = bdisp_get_bufs(ctx);
334e7b8153eSMauro Carvalho Chehab if (err) {
335e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "cannot get address\n");
336e7b8153eSMauro Carvalho Chehab goto out;
337e7b8153eSMauro Carvalho Chehab }
338e7b8153eSMauro Carvalho Chehab
339e7b8153eSMauro Carvalho Chehab bdisp_dbg_perf_begin(bdisp);
340e7b8153eSMauro Carvalho Chehab
341e7b8153eSMauro Carvalho Chehab err = bdisp_hw_reset(bdisp);
342e7b8153eSMauro Carvalho Chehab if (err) {
343e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "could not get HW ready\n");
344e7b8153eSMauro Carvalho Chehab goto out;
345e7b8153eSMauro Carvalho Chehab }
346e7b8153eSMauro Carvalho Chehab
347e7b8153eSMauro Carvalho Chehab err = bdisp_hw_update(ctx);
348e7b8153eSMauro Carvalho Chehab if (err) {
349e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "could not send HW request\n");
350e7b8153eSMauro Carvalho Chehab goto out;
351e7b8153eSMauro Carvalho Chehab }
352e7b8153eSMauro Carvalho Chehab
353e7b8153eSMauro Carvalho Chehab queue_delayed_work(bdisp->work_queue, &bdisp->timeout_work,
354e7b8153eSMauro Carvalho Chehab BDISP_WORK_TIMEOUT);
355e7b8153eSMauro Carvalho Chehab set_bit(ST_M2M_RUNNING, &bdisp->state);
356e7b8153eSMauro Carvalho Chehab out:
357e7b8153eSMauro Carvalho Chehab ctx->state &= ~BDISP_PARAMS;
358e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&bdisp->slock, flags);
359e7b8153eSMauro Carvalho Chehab if (err)
360e7b8153eSMauro Carvalho Chehab bdisp_job_finish(ctx, VB2_BUF_STATE_ERROR);
361e7b8153eSMauro Carvalho Chehab }
362e7b8153eSMauro Carvalho Chehab
363e7b8153eSMauro Carvalho Chehab static const struct v4l2_m2m_ops bdisp_m2m_ops = {
364e7b8153eSMauro Carvalho Chehab .device_run = bdisp_device_run,
365e7b8153eSMauro Carvalho Chehab .job_abort = bdisp_job_abort,
366e7b8153eSMauro Carvalho Chehab };
367e7b8153eSMauro Carvalho Chehab
__bdisp_s_ctrl(struct bdisp_ctx * ctx,struct v4l2_ctrl * ctrl)368e7b8153eSMauro Carvalho Chehab static int __bdisp_s_ctrl(struct bdisp_ctx *ctx, struct v4l2_ctrl *ctrl)
369e7b8153eSMauro Carvalho Chehab {
370e7b8153eSMauro Carvalho Chehab if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE)
371e7b8153eSMauro Carvalho Chehab return 0;
372e7b8153eSMauro Carvalho Chehab
373e7b8153eSMauro Carvalho Chehab switch (ctrl->id) {
374e7b8153eSMauro Carvalho Chehab case V4L2_CID_HFLIP:
375e7b8153eSMauro Carvalho Chehab ctx->hflip = ctrl->val;
376e7b8153eSMauro Carvalho Chehab break;
377e7b8153eSMauro Carvalho Chehab case V4L2_CID_VFLIP:
378e7b8153eSMauro Carvalho Chehab ctx->vflip = ctrl->val;
379e7b8153eSMauro Carvalho Chehab break;
380e7b8153eSMauro Carvalho Chehab default:
381e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "unknown control %d\n", ctrl->id);
382e7b8153eSMauro Carvalho Chehab return -EINVAL;
383e7b8153eSMauro Carvalho Chehab }
384e7b8153eSMauro Carvalho Chehab
385e7b8153eSMauro Carvalho Chehab ctx->state |= BDISP_PARAMS;
386e7b8153eSMauro Carvalho Chehab
387e7b8153eSMauro Carvalho Chehab return 0;
388e7b8153eSMauro Carvalho Chehab }
389e7b8153eSMauro Carvalho Chehab
bdisp_s_ctrl(struct v4l2_ctrl * ctrl)390e7b8153eSMauro Carvalho Chehab static int bdisp_s_ctrl(struct v4l2_ctrl *ctrl)
391e7b8153eSMauro Carvalho Chehab {
392e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = container_of(ctrl->handler, struct bdisp_ctx,
393e7b8153eSMauro Carvalho Chehab ctrl_handler);
394e7b8153eSMauro Carvalho Chehab unsigned long flags;
395e7b8153eSMauro Carvalho Chehab int ret;
396e7b8153eSMauro Carvalho Chehab
397e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&ctx->bdisp_dev->slock, flags);
398e7b8153eSMauro Carvalho Chehab ret = __bdisp_s_ctrl(ctx, ctrl);
399e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&ctx->bdisp_dev->slock, flags);
400e7b8153eSMauro Carvalho Chehab
401e7b8153eSMauro Carvalho Chehab return ret;
402e7b8153eSMauro Carvalho Chehab }
403e7b8153eSMauro Carvalho Chehab
404e7b8153eSMauro Carvalho Chehab static const struct v4l2_ctrl_ops bdisp_c_ops = {
405e7b8153eSMauro Carvalho Chehab .s_ctrl = bdisp_s_ctrl,
406e7b8153eSMauro Carvalho Chehab };
407e7b8153eSMauro Carvalho Chehab
bdisp_ctrls_create(struct bdisp_ctx * ctx)408e7b8153eSMauro Carvalho Chehab static int bdisp_ctrls_create(struct bdisp_ctx *ctx)
409e7b8153eSMauro Carvalho Chehab {
410e7b8153eSMauro Carvalho Chehab if (ctx->ctrls_rdy)
411e7b8153eSMauro Carvalho Chehab return 0;
412e7b8153eSMauro Carvalho Chehab
413e7b8153eSMauro Carvalho Chehab v4l2_ctrl_handler_init(&ctx->ctrl_handler, BDISP_MAX_CTRL_NUM);
414e7b8153eSMauro Carvalho Chehab
415e7b8153eSMauro Carvalho Chehab ctx->bdisp_ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
416e7b8153eSMauro Carvalho Chehab &bdisp_c_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
417e7b8153eSMauro Carvalho Chehab ctx->bdisp_ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
418e7b8153eSMauro Carvalho Chehab &bdisp_c_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
419e7b8153eSMauro Carvalho Chehab
420e7b8153eSMauro Carvalho Chehab if (ctx->ctrl_handler.error) {
421e7b8153eSMauro Carvalho Chehab int err = ctx->ctrl_handler.error;
422e7b8153eSMauro Carvalho Chehab
423e7b8153eSMauro Carvalho Chehab v4l2_ctrl_handler_free(&ctx->ctrl_handler);
424e7b8153eSMauro Carvalho Chehab return err;
425e7b8153eSMauro Carvalho Chehab }
426e7b8153eSMauro Carvalho Chehab
427e7b8153eSMauro Carvalho Chehab ctx->ctrls_rdy = true;
428e7b8153eSMauro Carvalho Chehab
429e7b8153eSMauro Carvalho Chehab return 0;
430e7b8153eSMauro Carvalho Chehab }
431e7b8153eSMauro Carvalho Chehab
bdisp_ctrls_delete(struct bdisp_ctx * ctx)432e7b8153eSMauro Carvalho Chehab static void bdisp_ctrls_delete(struct bdisp_ctx *ctx)
433e7b8153eSMauro Carvalho Chehab {
434e7b8153eSMauro Carvalho Chehab if (ctx->ctrls_rdy) {
435e7b8153eSMauro Carvalho Chehab v4l2_ctrl_handler_free(&ctx->ctrl_handler);
436e7b8153eSMauro Carvalho Chehab ctx->ctrls_rdy = false;
437e7b8153eSMauro Carvalho Chehab }
438e7b8153eSMauro Carvalho Chehab }
439e7b8153eSMauro Carvalho Chehab
bdisp_queue_setup(struct vb2_queue * vq,unsigned int * nb_buf,unsigned int * nb_planes,unsigned int sizes[],struct device * alloc_devs[])440e7b8153eSMauro Carvalho Chehab static int bdisp_queue_setup(struct vb2_queue *vq,
441e7b8153eSMauro Carvalho Chehab unsigned int *nb_buf, unsigned int *nb_planes,
442e7b8153eSMauro Carvalho Chehab unsigned int sizes[], struct device *alloc_devs[])
443e7b8153eSMauro Carvalho Chehab {
444e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = vb2_get_drv_priv(vq);
445e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame = ctx_get_frame(ctx, vq->type);
446e7b8153eSMauro Carvalho Chehab
447e7b8153eSMauro Carvalho Chehab if (IS_ERR(frame)) {
448e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid frame (%p)\n", frame);
449e7b8153eSMauro Carvalho Chehab return PTR_ERR(frame);
450e7b8153eSMauro Carvalho Chehab }
451e7b8153eSMauro Carvalho Chehab
452e7b8153eSMauro Carvalho Chehab if (!frame->fmt) {
453e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid format\n");
454e7b8153eSMauro Carvalho Chehab return -EINVAL;
455e7b8153eSMauro Carvalho Chehab }
456e7b8153eSMauro Carvalho Chehab
457e7b8153eSMauro Carvalho Chehab if (*nb_planes)
458e7b8153eSMauro Carvalho Chehab return sizes[0] < frame->sizeimage ? -EINVAL : 0;
459e7b8153eSMauro Carvalho Chehab
460e7b8153eSMauro Carvalho Chehab *nb_planes = 1;
461e7b8153eSMauro Carvalho Chehab sizes[0] = frame->sizeimage;
462e7b8153eSMauro Carvalho Chehab
463e7b8153eSMauro Carvalho Chehab return 0;
464e7b8153eSMauro Carvalho Chehab }
465e7b8153eSMauro Carvalho Chehab
bdisp_buf_prepare(struct vb2_buffer * vb)466e7b8153eSMauro Carvalho Chehab static int bdisp_buf_prepare(struct vb2_buffer *vb)
467e7b8153eSMauro Carvalho Chehab {
468e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
469e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame = ctx_get_frame(ctx, vb->vb2_queue->type);
470e7b8153eSMauro Carvalho Chehab
471e7b8153eSMauro Carvalho Chehab if (IS_ERR(frame)) {
472e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid frame (%p)\n", frame);
473e7b8153eSMauro Carvalho Chehab return PTR_ERR(frame);
474e7b8153eSMauro Carvalho Chehab }
475e7b8153eSMauro Carvalho Chehab
476e7b8153eSMauro Carvalho Chehab if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
477e7b8153eSMauro Carvalho Chehab vb2_set_plane_payload(vb, 0, frame->sizeimage);
478e7b8153eSMauro Carvalho Chehab
479e7b8153eSMauro Carvalho Chehab return 0;
480e7b8153eSMauro Carvalho Chehab }
481e7b8153eSMauro Carvalho Chehab
bdisp_buf_queue(struct vb2_buffer * vb)482e7b8153eSMauro Carvalho Chehab static void bdisp_buf_queue(struct vb2_buffer *vb)
483e7b8153eSMauro Carvalho Chehab {
484e7b8153eSMauro Carvalho Chehab struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
485e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
486e7b8153eSMauro Carvalho Chehab
487e7b8153eSMauro Carvalho Chehab /* return to V4L2 any 0-size buffer so it can be dequeued by user */
488e7b8153eSMauro Carvalho Chehab if (!vb2_get_plane_payload(vb, 0)) {
489e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "0 data buffer, skip it\n");
490e7b8153eSMauro Carvalho Chehab vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
491e7b8153eSMauro Carvalho Chehab return;
492e7b8153eSMauro Carvalho Chehab }
493e7b8153eSMauro Carvalho Chehab
494e7b8153eSMauro Carvalho Chehab if (ctx->fh.m2m_ctx)
495e7b8153eSMauro Carvalho Chehab v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
496e7b8153eSMauro Carvalho Chehab }
497e7b8153eSMauro Carvalho Chehab
bdisp_start_streaming(struct vb2_queue * q,unsigned int count)498e7b8153eSMauro Carvalho Chehab static int bdisp_start_streaming(struct vb2_queue *q, unsigned int count)
499e7b8153eSMauro Carvalho Chehab {
500e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = q->drv_priv;
501e7b8153eSMauro Carvalho Chehab struct vb2_v4l2_buffer *buf;
502e7b8153eSMauro Carvalho Chehab int ret = pm_runtime_resume_and_get(ctx->bdisp_dev->dev);
503e7b8153eSMauro Carvalho Chehab
504e7b8153eSMauro Carvalho Chehab if (ret < 0) {
505e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "failed to set runtime PM\n");
506e7b8153eSMauro Carvalho Chehab
507e7b8153eSMauro Carvalho Chehab if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
508e7b8153eSMauro Carvalho Chehab while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
509e7b8153eSMauro Carvalho Chehab v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
510e7b8153eSMauro Carvalho Chehab } else {
511e7b8153eSMauro Carvalho Chehab while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
512e7b8153eSMauro Carvalho Chehab v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
513e7b8153eSMauro Carvalho Chehab }
514e7b8153eSMauro Carvalho Chehab
515e7b8153eSMauro Carvalho Chehab return ret;
516e7b8153eSMauro Carvalho Chehab }
517e7b8153eSMauro Carvalho Chehab
518e7b8153eSMauro Carvalho Chehab return 0;
519e7b8153eSMauro Carvalho Chehab }
520e7b8153eSMauro Carvalho Chehab
bdisp_stop_streaming(struct vb2_queue * q)521e7b8153eSMauro Carvalho Chehab static void bdisp_stop_streaming(struct vb2_queue *q)
522e7b8153eSMauro Carvalho Chehab {
523e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = q->drv_priv;
524e7b8153eSMauro Carvalho Chehab
525e7b8153eSMauro Carvalho Chehab __bdisp_job_abort(ctx);
526e7b8153eSMauro Carvalho Chehab
527e7b8153eSMauro Carvalho Chehab pm_runtime_put(ctx->bdisp_dev->dev);
528e7b8153eSMauro Carvalho Chehab }
529e7b8153eSMauro Carvalho Chehab
530e7b8153eSMauro Carvalho Chehab static const struct vb2_ops bdisp_qops = {
531e7b8153eSMauro Carvalho Chehab .queue_setup = bdisp_queue_setup,
532e7b8153eSMauro Carvalho Chehab .buf_prepare = bdisp_buf_prepare,
533e7b8153eSMauro Carvalho Chehab .buf_queue = bdisp_buf_queue,
534e7b8153eSMauro Carvalho Chehab .wait_prepare = vb2_ops_wait_prepare,
535e7b8153eSMauro Carvalho Chehab .wait_finish = vb2_ops_wait_finish,
536e7b8153eSMauro Carvalho Chehab .stop_streaming = bdisp_stop_streaming,
537e7b8153eSMauro Carvalho Chehab .start_streaming = bdisp_start_streaming,
538e7b8153eSMauro Carvalho Chehab };
539e7b8153eSMauro Carvalho Chehab
queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)540e7b8153eSMauro Carvalho Chehab static int queue_init(void *priv,
541e7b8153eSMauro Carvalho Chehab struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
542e7b8153eSMauro Carvalho Chehab {
543e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = priv;
544e7b8153eSMauro Carvalho Chehab int ret;
545e7b8153eSMauro Carvalho Chehab
546e7b8153eSMauro Carvalho Chehab memset(src_vq, 0, sizeof(*src_vq));
547e7b8153eSMauro Carvalho Chehab src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
548e7b8153eSMauro Carvalho Chehab src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
549e7b8153eSMauro Carvalho Chehab src_vq->drv_priv = ctx;
550e7b8153eSMauro Carvalho Chehab src_vq->ops = &bdisp_qops;
551e7b8153eSMauro Carvalho Chehab src_vq->mem_ops = &vb2_dma_contig_memops;
552e7b8153eSMauro Carvalho Chehab src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
553e7b8153eSMauro Carvalho Chehab src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
554e7b8153eSMauro Carvalho Chehab src_vq->lock = &ctx->bdisp_dev->lock;
555e7b8153eSMauro Carvalho Chehab src_vq->dev = ctx->bdisp_dev->v4l2_dev.dev;
556e7b8153eSMauro Carvalho Chehab
557e7b8153eSMauro Carvalho Chehab ret = vb2_queue_init(src_vq);
558e7b8153eSMauro Carvalho Chehab if (ret)
559e7b8153eSMauro Carvalho Chehab return ret;
560e7b8153eSMauro Carvalho Chehab
561e7b8153eSMauro Carvalho Chehab memset(dst_vq, 0, sizeof(*dst_vq));
562e7b8153eSMauro Carvalho Chehab dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
563e7b8153eSMauro Carvalho Chehab dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
564e7b8153eSMauro Carvalho Chehab dst_vq->drv_priv = ctx;
565e7b8153eSMauro Carvalho Chehab dst_vq->ops = &bdisp_qops;
566e7b8153eSMauro Carvalho Chehab dst_vq->mem_ops = &vb2_dma_contig_memops;
567e7b8153eSMauro Carvalho Chehab dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
568e7b8153eSMauro Carvalho Chehab dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
569e7b8153eSMauro Carvalho Chehab dst_vq->lock = &ctx->bdisp_dev->lock;
570e7b8153eSMauro Carvalho Chehab dst_vq->dev = ctx->bdisp_dev->v4l2_dev.dev;
571e7b8153eSMauro Carvalho Chehab
572e7b8153eSMauro Carvalho Chehab return vb2_queue_init(dst_vq);
573e7b8153eSMauro Carvalho Chehab }
574e7b8153eSMauro Carvalho Chehab
bdisp_open(struct file * file)575e7b8153eSMauro Carvalho Chehab static int bdisp_open(struct file *file)
576e7b8153eSMauro Carvalho Chehab {
577e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = video_drvdata(file);
578e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = NULL;
579e7b8153eSMauro Carvalho Chehab int ret;
580e7b8153eSMauro Carvalho Chehab
581e7b8153eSMauro Carvalho Chehab if (mutex_lock_interruptible(&bdisp->lock))
582e7b8153eSMauro Carvalho Chehab return -ERESTARTSYS;
583e7b8153eSMauro Carvalho Chehab
584e7b8153eSMauro Carvalho Chehab /* Allocate memory for both context and node */
585e7b8153eSMauro Carvalho Chehab ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
586e7b8153eSMauro Carvalho Chehab if (!ctx) {
587e7b8153eSMauro Carvalho Chehab ret = -ENOMEM;
588e7b8153eSMauro Carvalho Chehab goto unlock;
589e7b8153eSMauro Carvalho Chehab }
590e7b8153eSMauro Carvalho Chehab ctx->bdisp_dev = bdisp;
591e7b8153eSMauro Carvalho Chehab
592e7b8153eSMauro Carvalho Chehab if (bdisp_hw_alloc_nodes(ctx)) {
593e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "no memory for nodes\n");
594e7b8153eSMauro Carvalho Chehab ret = -ENOMEM;
595e7b8153eSMauro Carvalho Chehab goto mem_ctx;
596e7b8153eSMauro Carvalho Chehab }
597e7b8153eSMauro Carvalho Chehab
598e7b8153eSMauro Carvalho Chehab v4l2_fh_init(&ctx->fh, bdisp->m2m.vdev);
599e7b8153eSMauro Carvalho Chehab
600e7b8153eSMauro Carvalho Chehab ret = bdisp_ctrls_create(ctx);
601e7b8153eSMauro Carvalho Chehab if (ret) {
602e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "Failed to create control\n");
603e7b8153eSMauro Carvalho Chehab goto error_fh;
604e7b8153eSMauro Carvalho Chehab }
605e7b8153eSMauro Carvalho Chehab
606e7b8153eSMauro Carvalho Chehab /* Use separate control handler per file handle */
607e7b8153eSMauro Carvalho Chehab ctx->fh.ctrl_handler = &ctx->ctrl_handler;
608e7b8153eSMauro Carvalho Chehab file->private_data = &ctx->fh;
609e7b8153eSMauro Carvalho Chehab v4l2_fh_add(&ctx->fh);
610e7b8153eSMauro Carvalho Chehab
611e7b8153eSMauro Carvalho Chehab /* Default format */
612e7b8153eSMauro Carvalho Chehab ctx->src = bdisp_dflt_fmt;
613e7b8153eSMauro Carvalho Chehab ctx->dst = bdisp_dflt_fmt;
614e7b8153eSMauro Carvalho Chehab
615e7b8153eSMauro Carvalho Chehab /* Setup the device context for mem2mem mode. */
616e7b8153eSMauro Carvalho Chehab ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(bdisp->m2m.m2m_dev, ctx,
617e7b8153eSMauro Carvalho Chehab queue_init);
618e7b8153eSMauro Carvalho Chehab if (IS_ERR(ctx->fh.m2m_ctx)) {
619e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "Failed to initialize m2m context\n");
620e7b8153eSMauro Carvalho Chehab ret = PTR_ERR(ctx->fh.m2m_ctx);
621e7b8153eSMauro Carvalho Chehab goto error_ctrls;
622e7b8153eSMauro Carvalho Chehab }
623e7b8153eSMauro Carvalho Chehab
624e7b8153eSMauro Carvalho Chehab bdisp->m2m.refcnt++;
625e7b8153eSMauro Carvalho Chehab set_bit(ST_M2M_OPEN, &bdisp->state);
626e7b8153eSMauro Carvalho Chehab
627e7b8153eSMauro Carvalho Chehab dev_dbg(bdisp->dev, "driver opened, ctx = 0x%p\n", ctx);
628e7b8153eSMauro Carvalho Chehab
629e7b8153eSMauro Carvalho Chehab mutex_unlock(&bdisp->lock);
630e7b8153eSMauro Carvalho Chehab
631e7b8153eSMauro Carvalho Chehab return 0;
632e7b8153eSMauro Carvalho Chehab
633e7b8153eSMauro Carvalho Chehab error_ctrls:
634e7b8153eSMauro Carvalho Chehab bdisp_ctrls_delete(ctx);
635e7b8153eSMauro Carvalho Chehab v4l2_fh_del(&ctx->fh);
636e7b8153eSMauro Carvalho Chehab error_fh:
637e7b8153eSMauro Carvalho Chehab v4l2_fh_exit(&ctx->fh);
638e7b8153eSMauro Carvalho Chehab bdisp_hw_free_nodes(ctx);
639e7b8153eSMauro Carvalho Chehab mem_ctx:
640e7b8153eSMauro Carvalho Chehab kfree(ctx);
641e7b8153eSMauro Carvalho Chehab unlock:
642e7b8153eSMauro Carvalho Chehab mutex_unlock(&bdisp->lock);
643e7b8153eSMauro Carvalho Chehab
644e7b8153eSMauro Carvalho Chehab return ret;
645e7b8153eSMauro Carvalho Chehab }
646e7b8153eSMauro Carvalho Chehab
bdisp_release(struct file * file)647e7b8153eSMauro Carvalho Chehab static int bdisp_release(struct file *file)
648e7b8153eSMauro Carvalho Chehab {
649e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(file->private_data);
650e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = ctx->bdisp_dev;
651e7b8153eSMauro Carvalho Chehab
652e7b8153eSMauro Carvalho Chehab dev_dbg(bdisp->dev, "%s\n", __func__);
653e7b8153eSMauro Carvalho Chehab
654e7b8153eSMauro Carvalho Chehab mutex_lock(&bdisp->lock);
655e7b8153eSMauro Carvalho Chehab
656e7b8153eSMauro Carvalho Chehab v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
657e7b8153eSMauro Carvalho Chehab
658e7b8153eSMauro Carvalho Chehab bdisp_ctrls_delete(ctx);
659e7b8153eSMauro Carvalho Chehab
660e7b8153eSMauro Carvalho Chehab v4l2_fh_del(&ctx->fh);
661e7b8153eSMauro Carvalho Chehab v4l2_fh_exit(&ctx->fh);
662e7b8153eSMauro Carvalho Chehab
663e7b8153eSMauro Carvalho Chehab if (--bdisp->m2m.refcnt <= 0)
664e7b8153eSMauro Carvalho Chehab clear_bit(ST_M2M_OPEN, &bdisp->state);
665e7b8153eSMauro Carvalho Chehab
666e7b8153eSMauro Carvalho Chehab bdisp_hw_free_nodes(ctx);
667e7b8153eSMauro Carvalho Chehab
668e7b8153eSMauro Carvalho Chehab kfree(ctx);
669e7b8153eSMauro Carvalho Chehab
670e7b8153eSMauro Carvalho Chehab mutex_unlock(&bdisp->lock);
671e7b8153eSMauro Carvalho Chehab
672e7b8153eSMauro Carvalho Chehab return 0;
673e7b8153eSMauro Carvalho Chehab }
674e7b8153eSMauro Carvalho Chehab
675e7b8153eSMauro Carvalho Chehab static const struct v4l2_file_operations bdisp_fops = {
676e7b8153eSMauro Carvalho Chehab .owner = THIS_MODULE,
677e7b8153eSMauro Carvalho Chehab .open = bdisp_open,
678e7b8153eSMauro Carvalho Chehab .release = bdisp_release,
679e7b8153eSMauro Carvalho Chehab .poll = v4l2_m2m_fop_poll,
680e7b8153eSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2,
681e7b8153eSMauro Carvalho Chehab .mmap = v4l2_m2m_fop_mmap,
682e7b8153eSMauro Carvalho Chehab };
683e7b8153eSMauro Carvalho Chehab
bdisp_querycap(struct file * file,void * fh,struct v4l2_capability * cap)684e7b8153eSMauro Carvalho Chehab static int bdisp_querycap(struct file *file, void *fh,
685e7b8153eSMauro Carvalho Chehab struct v4l2_capability *cap)
686e7b8153eSMauro Carvalho Chehab {
687e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
688e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = ctx->bdisp_dev;
689e7b8153eSMauro Carvalho Chehab
690e7b8153eSMauro Carvalho Chehab strscpy(cap->driver, bdisp->pdev->name, sizeof(cap->driver));
691e7b8153eSMauro Carvalho Chehab strscpy(cap->card, bdisp->pdev->name, sizeof(cap->card));
692e7b8153eSMauro Carvalho Chehab snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s%d",
693e7b8153eSMauro Carvalho Chehab BDISP_NAME, bdisp->id);
694e7b8153eSMauro Carvalho Chehab return 0;
695e7b8153eSMauro Carvalho Chehab }
696e7b8153eSMauro Carvalho Chehab
bdisp_enum_fmt(struct file * file,void * fh,struct v4l2_fmtdesc * f)697e7b8153eSMauro Carvalho Chehab static int bdisp_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
698e7b8153eSMauro Carvalho Chehab {
699e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
700e7b8153eSMauro Carvalho Chehab const struct bdisp_fmt *fmt;
701e7b8153eSMauro Carvalho Chehab
702e7b8153eSMauro Carvalho Chehab if (f->index >= ARRAY_SIZE(bdisp_formats))
703e7b8153eSMauro Carvalho Chehab return -EINVAL;
704e7b8153eSMauro Carvalho Chehab
705e7b8153eSMauro Carvalho Chehab fmt = &bdisp_formats[f->index];
706e7b8153eSMauro Carvalho Chehab
707e7b8153eSMauro Carvalho Chehab if ((fmt->pixelformat == V4L2_PIX_FMT_YUV420) &&
708e7b8153eSMauro Carvalho Chehab (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)) {
709e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "No YU12 on capture\n");
710e7b8153eSMauro Carvalho Chehab return -EINVAL;
711e7b8153eSMauro Carvalho Chehab }
712e7b8153eSMauro Carvalho Chehab f->pixelformat = fmt->pixelformat;
713e7b8153eSMauro Carvalho Chehab
714e7b8153eSMauro Carvalho Chehab return 0;
715e7b8153eSMauro Carvalho Chehab }
716e7b8153eSMauro Carvalho Chehab
bdisp_g_fmt(struct file * file,void * fh,struct v4l2_format * f)717e7b8153eSMauro Carvalho Chehab static int bdisp_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
718e7b8153eSMauro Carvalho Chehab {
719e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
720e7b8153eSMauro Carvalho Chehab struct v4l2_pix_format *pix;
721e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame = ctx_get_frame(ctx, f->type);
722e7b8153eSMauro Carvalho Chehab
723e7b8153eSMauro Carvalho Chehab if (IS_ERR(frame)) {
724e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid frame (%p)\n", frame);
725e7b8153eSMauro Carvalho Chehab return PTR_ERR(frame);
726e7b8153eSMauro Carvalho Chehab }
727e7b8153eSMauro Carvalho Chehab
728e7b8153eSMauro Carvalho Chehab pix = &f->fmt.pix;
729e7b8153eSMauro Carvalho Chehab pix->width = frame->width;
730e7b8153eSMauro Carvalho Chehab pix->height = frame->height;
731e7b8153eSMauro Carvalho Chehab pix->pixelformat = frame->fmt->pixelformat;
732e7b8153eSMauro Carvalho Chehab pix->field = frame->field;
733e7b8153eSMauro Carvalho Chehab pix->bytesperline = frame->bytesperline;
734e7b8153eSMauro Carvalho Chehab pix->sizeimage = frame->sizeimage;
735e7b8153eSMauro Carvalho Chehab pix->colorspace = (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
736e7b8153eSMauro Carvalho Chehab frame->colorspace : bdisp_dflt_fmt.colorspace;
737e7b8153eSMauro Carvalho Chehab
738e7b8153eSMauro Carvalho Chehab return 0;
739e7b8153eSMauro Carvalho Chehab }
740e7b8153eSMauro Carvalho Chehab
bdisp_try_fmt(struct file * file,void * fh,struct v4l2_format * f)741e7b8153eSMauro Carvalho Chehab static int bdisp_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
742e7b8153eSMauro Carvalho Chehab {
743e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
744e7b8153eSMauro Carvalho Chehab struct v4l2_pix_format *pix = &f->fmt.pix;
745e7b8153eSMauro Carvalho Chehab const struct bdisp_fmt *format;
746e7b8153eSMauro Carvalho Chehab u32 in_w, in_h;
747e7b8153eSMauro Carvalho Chehab
748e7b8153eSMauro Carvalho Chehab format = bdisp_find_fmt(pix->pixelformat);
749e7b8153eSMauro Carvalho Chehab if (!format) {
750e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "Unknown format 0x%x\n",
751e7b8153eSMauro Carvalho Chehab pix->pixelformat);
752e7b8153eSMauro Carvalho Chehab return -EINVAL;
753e7b8153eSMauro Carvalho Chehab }
754e7b8153eSMauro Carvalho Chehab
755e7b8153eSMauro Carvalho Chehab /* YUV420P only supported for VIDEO_OUTPUT */
756e7b8153eSMauro Carvalho Chehab if ((format->pixelformat == V4L2_PIX_FMT_YUV420) &&
757e7b8153eSMauro Carvalho Chehab (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)) {
758e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev, "No YU12 on capture\n");
759e7b8153eSMauro Carvalho Chehab return -EINVAL;
760e7b8153eSMauro Carvalho Chehab }
761e7b8153eSMauro Carvalho Chehab
762e7b8153eSMauro Carvalho Chehab /* Field (interlaced only supported on OUTPUT) */
763e7b8153eSMauro Carvalho Chehab if ((f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
764e7b8153eSMauro Carvalho Chehab (pix->field != V4L2_FIELD_INTERLACED))
765e7b8153eSMauro Carvalho Chehab pix->field = V4L2_FIELD_NONE;
766e7b8153eSMauro Carvalho Chehab
767e7b8153eSMauro Carvalho Chehab /* Adjust width & height */
768e7b8153eSMauro Carvalho Chehab in_w = pix->width;
769e7b8153eSMauro Carvalho Chehab in_h = pix->height;
770e7b8153eSMauro Carvalho Chehab v4l_bound_align_image(&pix->width,
771e7b8153eSMauro Carvalho Chehab BDISP_MIN_W, BDISP_MAX_W,
772e7b8153eSMauro Carvalho Chehab ffs(format->w_align) - 1,
773e7b8153eSMauro Carvalho Chehab &pix->height,
774e7b8153eSMauro Carvalho Chehab BDISP_MIN_H, BDISP_MAX_H,
775e7b8153eSMauro Carvalho Chehab ffs(format->h_align) - 1,
776e7b8153eSMauro Carvalho Chehab 0);
777e7b8153eSMauro Carvalho Chehab if ((pix->width != in_w) || (pix->height != in_h))
778e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev,
779e7b8153eSMauro Carvalho Chehab "%s size updated: %dx%d -> %dx%d\n", __func__,
780e7b8153eSMauro Carvalho Chehab in_w, in_h, pix->width, pix->height);
781e7b8153eSMauro Carvalho Chehab
782e7b8153eSMauro Carvalho Chehab pix->bytesperline = (pix->width * format->bpp_plane0) / 8;
783e7b8153eSMauro Carvalho Chehab pix->sizeimage = (pix->width * pix->height * format->bpp) / 8;
784e7b8153eSMauro Carvalho Chehab
785e7b8153eSMauro Carvalho Chehab if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
786e7b8153eSMauro Carvalho Chehab pix->colorspace = bdisp_dflt_fmt.colorspace;
787e7b8153eSMauro Carvalho Chehab
788e7b8153eSMauro Carvalho Chehab return 0;
789e7b8153eSMauro Carvalho Chehab }
790e7b8153eSMauro Carvalho Chehab
bdisp_s_fmt(struct file * file,void * fh,struct v4l2_format * f)791e7b8153eSMauro Carvalho Chehab static int bdisp_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
792e7b8153eSMauro Carvalho Chehab {
793e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
794e7b8153eSMauro Carvalho Chehab struct vb2_queue *vq;
795e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame;
796e7b8153eSMauro Carvalho Chehab struct v4l2_pix_format *pix;
797e7b8153eSMauro Carvalho Chehab int ret;
798e7b8153eSMauro Carvalho Chehab u32 state;
799e7b8153eSMauro Carvalho Chehab
800e7b8153eSMauro Carvalho Chehab ret = bdisp_try_fmt(file, fh, f);
801e7b8153eSMauro Carvalho Chehab if (ret) {
802e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Cannot set format\n");
803e7b8153eSMauro Carvalho Chehab return ret;
804e7b8153eSMauro Carvalho Chehab }
805e7b8153eSMauro Carvalho Chehab
806e7b8153eSMauro Carvalho Chehab vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
807e7b8153eSMauro Carvalho Chehab if (vb2_is_streaming(vq)) {
808e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "queue (%d) busy\n", f->type);
809e7b8153eSMauro Carvalho Chehab return -EBUSY;
810e7b8153eSMauro Carvalho Chehab }
811e7b8153eSMauro Carvalho Chehab
812e7b8153eSMauro Carvalho Chehab frame = (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
813e7b8153eSMauro Carvalho Chehab &ctx->src : &ctx->dst;
814e7b8153eSMauro Carvalho Chehab pix = &f->fmt.pix;
815e7b8153eSMauro Carvalho Chehab frame->fmt = bdisp_find_fmt(pix->pixelformat);
816e7b8153eSMauro Carvalho Chehab if (!frame->fmt) {
817e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Unknown format 0x%x\n",
818e7b8153eSMauro Carvalho Chehab pix->pixelformat);
819e7b8153eSMauro Carvalho Chehab return -EINVAL;
820e7b8153eSMauro Carvalho Chehab }
821e7b8153eSMauro Carvalho Chehab
822e7b8153eSMauro Carvalho Chehab frame->width = pix->width;
823e7b8153eSMauro Carvalho Chehab frame->height = pix->height;
824e7b8153eSMauro Carvalho Chehab frame->bytesperline = pix->bytesperline;
825e7b8153eSMauro Carvalho Chehab frame->sizeimage = pix->sizeimage;
826e7b8153eSMauro Carvalho Chehab frame->field = pix->field;
827e7b8153eSMauro Carvalho Chehab if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
828e7b8153eSMauro Carvalho Chehab frame->colorspace = pix->colorspace;
829e7b8153eSMauro Carvalho Chehab
830e7b8153eSMauro Carvalho Chehab frame->crop.width = frame->width;
831e7b8153eSMauro Carvalho Chehab frame->crop.height = frame->height;
832e7b8153eSMauro Carvalho Chehab frame->crop.left = 0;
833e7b8153eSMauro Carvalho Chehab frame->crop.top = 0;
834e7b8153eSMauro Carvalho Chehab
835e7b8153eSMauro Carvalho Chehab state = BDISP_PARAMS;
836e7b8153eSMauro Carvalho Chehab state |= (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
837e7b8153eSMauro Carvalho Chehab BDISP_DST_FMT : BDISP_SRC_FMT;
838e7b8153eSMauro Carvalho Chehab bdisp_ctx_state_lock_set(state, ctx);
839e7b8153eSMauro Carvalho Chehab
840e7b8153eSMauro Carvalho Chehab return 0;
841e7b8153eSMauro Carvalho Chehab }
842e7b8153eSMauro Carvalho Chehab
bdisp_g_selection(struct file * file,void * fh,struct v4l2_selection * s)843e7b8153eSMauro Carvalho Chehab static int bdisp_g_selection(struct file *file, void *fh,
844e7b8153eSMauro Carvalho Chehab struct v4l2_selection *s)
845e7b8153eSMauro Carvalho Chehab {
846e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame;
847e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
848e7b8153eSMauro Carvalho Chehab
849e7b8153eSMauro Carvalho Chehab frame = ctx_get_frame(ctx, s->type);
850e7b8153eSMauro Carvalho Chehab if (IS_ERR(frame)) {
851e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid frame (%p)\n", frame);
852e7b8153eSMauro Carvalho Chehab return PTR_ERR(frame);
853e7b8153eSMauro Carvalho Chehab }
854e7b8153eSMauro Carvalho Chehab
855e7b8153eSMauro Carvalho Chehab switch (s->type) {
856e7b8153eSMauro Carvalho Chehab case V4L2_BUF_TYPE_VIDEO_OUTPUT:
857e7b8153eSMauro Carvalho Chehab switch (s->target) {
858e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_CROP:
859e7b8153eSMauro Carvalho Chehab /* cropped frame */
860e7b8153eSMauro Carvalho Chehab s->r = frame->crop;
861e7b8153eSMauro Carvalho Chehab break;
862e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_CROP_DEFAULT:
863e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_CROP_BOUNDS:
864e7b8153eSMauro Carvalho Chehab /* complete frame */
865e7b8153eSMauro Carvalho Chehab s->r.left = 0;
866e7b8153eSMauro Carvalho Chehab s->r.top = 0;
867e7b8153eSMauro Carvalho Chehab s->r.width = frame->width;
868e7b8153eSMauro Carvalho Chehab s->r.height = frame->height;
869e7b8153eSMauro Carvalho Chehab break;
870e7b8153eSMauro Carvalho Chehab default:
871e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid target\n");
872e7b8153eSMauro Carvalho Chehab return -EINVAL;
873e7b8153eSMauro Carvalho Chehab }
874e7b8153eSMauro Carvalho Chehab break;
875e7b8153eSMauro Carvalho Chehab
876e7b8153eSMauro Carvalho Chehab case V4L2_BUF_TYPE_VIDEO_CAPTURE:
877e7b8153eSMauro Carvalho Chehab switch (s->target) {
878e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_COMPOSE:
879e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_COMPOSE_PADDED:
880e7b8153eSMauro Carvalho Chehab /* composed (cropped) frame */
881e7b8153eSMauro Carvalho Chehab s->r = frame->crop;
882e7b8153eSMauro Carvalho Chehab break;
883e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_COMPOSE_DEFAULT:
884e7b8153eSMauro Carvalho Chehab case V4L2_SEL_TGT_COMPOSE_BOUNDS:
885e7b8153eSMauro Carvalho Chehab /* complete frame */
886e7b8153eSMauro Carvalho Chehab s->r.left = 0;
887e7b8153eSMauro Carvalho Chehab s->r.top = 0;
888e7b8153eSMauro Carvalho Chehab s->r.width = frame->width;
889e7b8153eSMauro Carvalho Chehab s->r.height = frame->height;
890e7b8153eSMauro Carvalho Chehab break;
891e7b8153eSMauro Carvalho Chehab default:
892e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid target\n");
893e7b8153eSMauro Carvalho Chehab return -EINVAL;
894e7b8153eSMauro Carvalho Chehab }
895e7b8153eSMauro Carvalho Chehab break;
896e7b8153eSMauro Carvalho Chehab
897e7b8153eSMauro Carvalho Chehab default:
898e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid type\n");
899e7b8153eSMauro Carvalho Chehab return -EINVAL;
900e7b8153eSMauro Carvalho Chehab }
901e7b8153eSMauro Carvalho Chehab
902e7b8153eSMauro Carvalho Chehab return 0;
903e7b8153eSMauro Carvalho Chehab }
904e7b8153eSMauro Carvalho Chehab
is_rect_enclosed(struct v4l2_rect * a,struct v4l2_rect * b)905e7b8153eSMauro Carvalho Chehab static int is_rect_enclosed(struct v4l2_rect *a, struct v4l2_rect *b)
906e7b8153eSMauro Carvalho Chehab {
907e7b8153eSMauro Carvalho Chehab /* Return 1 if a is enclosed in b, or 0 otherwise. */
908e7b8153eSMauro Carvalho Chehab
909e7b8153eSMauro Carvalho Chehab if (a->left < b->left || a->top < b->top)
910e7b8153eSMauro Carvalho Chehab return 0;
911e7b8153eSMauro Carvalho Chehab
912e7b8153eSMauro Carvalho Chehab if (a->left + a->width > b->left + b->width)
913e7b8153eSMauro Carvalho Chehab return 0;
914e7b8153eSMauro Carvalho Chehab
915e7b8153eSMauro Carvalho Chehab if (a->top + a->height > b->top + b->height)
916e7b8153eSMauro Carvalho Chehab return 0;
917e7b8153eSMauro Carvalho Chehab
918e7b8153eSMauro Carvalho Chehab return 1;
919e7b8153eSMauro Carvalho Chehab }
920e7b8153eSMauro Carvalho Chehab
bdisp_s_selection(struct file * file,void * fh,struct v4l2_selection * s)921e7b8153eSMauro Carvalho Chehab static int bdisp_s_selection(struct file *file, void *fh,
922e7b8153eSMauro Carvalho Chehab struct v4l2_selection *s)
923e7b8153eSMauro Carvalho Chehab {
924e7b8153eSMauro Carvalho Chehab struct bdisp_frame *frame;
925e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
926e7b8153eSMauro Carvalho Chehab struct v4l2_rect *in, out;
927e7b8153eSMauro Carvalho Chehab bool valid = false;
928e7b8153eSMauro Carvalho Chehab
929e7b8153eSMauro Carvalho Chehab if ((s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) &&
930e7b8153eSMauro Carvalho Chehab (s->target == V4L2_SEL_TGT_CROP))
931e7b8153eSMauro Carvalho Chehab valid = true;
932e7b8153eSMauro Carvalho Chehab
933e7b8153eSMauro Carvalho Chehab if ((s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
934e7b8153eSMauro Carvalho Chehab (s->target == V4L2_SEL_TGT_COMPOSE))
935e7b8153eSMauro Carvalho Chehab valid = true;
936e7b8153eSMauro Carvalho Chehab
937e7b8153eSMauro Carvalho Chehab if (!valid) {
938e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid type / target\n");
939e7b8153eSMauro Carvalho Chehab return -EINVAL;
940e7b8153eSMauro Carvalho Chehab }
941e7b8153eSMauro Carvalho Chehab
942e7b8153eSMauro Carvalho Chehab frame = ctx_get_frame(ctx, s->type);
943e7b8153eSMauro Carvalho Chehab if (IS_ERR(frame)) {
944e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Invalid frame (%p)\n", frame);
945e7b8153eSMauro Carvalho Chehab return PTR_ERR(frame);
946e7b8153eSMauro Carvalho Chehab }
947e7b8153eSMauro Carvalho Chehab
948e7b8153eSMauro Carvalho Chehab in = &s->r;
949e7b8153eSMauro Carvalho Chehab out = *in;
950e7b8153eSMauro Carvalho Chehab
951e7b8153eSMauro Carvalho Chehab /* Align and check origin */
952e7b8153eSMauro Carvalho Chehab out.left = ALIGN(in->left, frame->fmt->w_align);
953e7b8153eSMauro Carvalho Chehab out.top = ALIGN(in->top, frame->fmt->h_align);
954e7b8153eSMauro Carvalho Chehab
955e7b8153eSMauro Carvalho Chehab if ((out.left < 0) || (out.left >= frame->width) ||
956e7b8153eSMauro Carvalho Chehab (out.top < 0) || (out.top >= frame->height)) {
957e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev,
958e7b8153eSMauro Carvalho Chehab "Invalid crop: %dx%d@(%d,%d) vs frame: %dx%d\n",
959e7b8153eSMauro Carvalho Chehab out.width, out.height, out.left, out.top,
960e7b8153eSMauro Carvalho Chehab frame->width, frame->height);
961e7b8153eSMauro Carvalho Chehab return -EINVAL;
962e7b8153eSMauro Carvalho Chehab }
963e7b8153eSMauro Carvalho Chehab
964e7b8153eSMauro Carvalho Chehab /* Align and check size */
965e7b8153eSMauro Carvalho Chehab out.width = ALIGN(in->width, frame->fmt->w_align);
966e7b8153eSMauro Carvalho Chehab out.height = ALIGN(in->height, frame->fmt->w_align);
967e7b8153eSMauro Carvalho Chehab
968e7b8153eSMauro Carvalho Chehab if (((out.left + out.width) > frame->width) ||
969e7b8153eSMauro Carvalho Chehab ((out.top + out.height) > frame->height)) {
970e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev,
971e7b8153eSMauro Carvalho Chehab "Invalid crop: %dx%d@(%d,%d) vs frame: %dx%d\n",
972e7b8153eSMauro Carvalho Chehab out.width, out.height, out.left, out.top,
973e7b8153eSMauro Carvalho Chehab frame->width, frame->height);
974e7b8153eSMauro Carvalho Chehab return -EINVAL;
975e7b8153eSMauro Carvalho Chehab }
976e7b8153eSMauro Carvalho Chehab
977e7b8153eSMauro Carvalho Chehab /* Checks adjust constraints flags */
978e7b8153eSMauro Carvalho Chehab if (s->flags & V4L2_SEL_FLAG_LE && !is_rect_enclosed(&out, in))
979e7b8153eSMauro Carvalho Chehab return -ERANGE;
980e7b8153eSMauro Carvalho Chehab
981e7b8153eSMauro Carvalho Chehab if (s->flags & V4L2_SEL_FLAG_GE && !is_rect_enclosed(in, &out))
982e7b8153eSMauro Carvalho Chehab return -ERANGE;
983e7b8153eSMauro Carvalho Chehab
984e7b8153eSMauro Carvalho Chehab if ((out.left != in->left) || (out.top != in->top) ||
985e7b8153eSMauro Carvalho Chehab (out.width != in->width) || (out.height != in->height)) {
986e7b8153eSMauro Carvalho Chehab dev_dbg(ctx->bdisp_dev->dev,
987e7b8153eSMauro Carvalho Chehab "%s crop updated: %dx%d@(%d,%d) -> %dx%d@(%d,%d)\n",
988e7b8153eSMauro Carvalho Chehab __func__, in->width, in->height, in->left, in->top,
989e7b8153eSMauro Carvalho Chehab out.width, out.height, out.left, out.top);
990e7b8153eSMauro Carvalho Chehab *in = out;
991e7b8153eSMauro Carvalho Chehab }
992e7b8153eSMauro Carvalho Chehab
993e7b8153eSMauro Carvalho Chehab frame->crop = out;
994e7b8153eSMauro Carvalho Chehab
995e7b8153eSMauro Carvalho Chehab bdisp_ctx_state_lock_set(BDISP_PARAMS, ctx);
996e7b8153eSMauro Carvalho Chehab
997e7b8153eSMauro Carvalho Chehab return 0;
998e7b8153eSMauro Carvalho Chehab }
999e7b8153eSMauro Carvalho Chehab
bdisp_streamon(struct file * file,void * fh,enum v4l2_buf_type type)1000e7b8153eSMauro Carvalho Chehab static int bdisp_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
1001e7b8153eSMauro Carvalho Chehab {
1002e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx = fh_to_ctx(fh);
1003e7b8153eSMauro Carvalho Chehab
1004e7b8153eSMauro Carvalho Chehab if ((type == V4L2_BUF_TYPE_VIDEO_OUTPUT) &&
1005e7b8153eSMauro Carvalho Chehab !bdisp_ctx_state_is_set(BDISP_SRC_FMT, ctx)) {
1006e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "src not defined\n");
1007e7b8153eSMauro Carvalho Chehab return -EINVAL;
1008e7b8153eSMauro Carvalho Chehab }
1009e7b8153eSMauro Carvalho Chehab
1010e7b8153eSMauro Carvalho Chehab if ((type == V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1011e7b8153eSMauro Carvalho Chehab !bdisp_ctx_state_is_set(BDISP_DST_FMT, ctx)) {
1012e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "dst not defined\n");
1013e7b8153eSMauro Carvalho Chehab return -EINVAL;
1014e7b8153eSMauro Carvalho Chehab }
1015e7b8153eSMauro Carvalho Chehab
1016e7b8153eSMauro Carvalho Chehab return v4l2_m2m_streamon(file, ctx->fh.m2m_ctx, type);
1017e7b8153eSMauro Carvalho Chehab }
1018e7b8153eSMauro Carvalho Chehab
1019e7b8153eSMauro Carvalho Chehab static const struct v4l2_ioctl_ops bdisp_ioctl_ops = {
1020e7b8153eSMauro Carvalho Chehab .vidioc_querycap = bdisp_querycap,
1021e7b8153eSMauro Carvalho Chehab .vidioc_enum_fmt_vid_cap = bdisp_enum_fmt,
1022e7b8153eSMauro Carvalho Chehab .vidioc_enum_fmt_vid_out = bdisp_enum_fmt,
1023e7b8153eSMauro Carvalho Chehab .vidioc_g_fmt_vid_cap = bdisp_g_fmt,
1024e7b8153eSMauro Carvalho Chehab .vidioc_g_fmt_vid_out = bdisp_g_fmt,
1025e7b8153eSMauro Carvalho Chehab .vidioc_try_fmt_vid_cap = bdisp_try_fmt,
1026e7b8153eSMauro Carvalho Chehab .vidioc_try_fmt_vid_out = bdisp_try_fmt,
1027e7b8153eSMauro Carvalho Chehab .vidioc_s_fmt_vid_cap = bdisp_s_fmt,
1028e7b8153eSMauro Carvalho Chehab .vidioc_s_fmt_vid_out = bdisp_s_fmt,
1029e7b8153eSMauro Carvalho Chehab .vidioc_g_selection = bdisp_g_selection,
1030e7b8153eSMauro Carvalho Chehab .vidioc_s_selection = bdisp_s_selection,
1031e7b8153eSMauro Carvalho Chehab .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
1032e7b8153eSMauro Carvalho Chehab .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1033e7b8153eSMauro Carvalho Chehab .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1034e7b8153eSMauro Carvalho Chehab .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1035e7b8153eSMauro Carvalho Chehab .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
1036e7b8153eSMauro Carvalho Chehab .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
1037e7b8153eSMauro Carvalho Chehab .vidioc_streamon = bdisp_streamon,
1038e7b8153eSMauro Carvalho Chehab .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1039e7b8153eSMauro Carvalho Chehab .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1040e7b8153eSMauro Carvalho Chehab .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1041e7b8153eSMauro Carvalho Chehab };
1042e7b8153eSMauro Carvalho Chehab
bdisp_register_device(struct bdisp_dev * bdisp)1043e7b8153eSMauro Carvalho Chehab static int bdisp_register_device(struct bdisp_dev *bdisp)
1044e7b8153eSMauro Carvalho Chehab {
1045e7b8153eSMauro Carvalho Chehab int ret;
1046e7b8153eSMauro Carvalho Chehab
1047e7b8153eSMauro Carvalho Chehab if (!bdisp)
1048e7b8153eSMauro Carvalho Chehab return -ENODEV;
1049e7b8153eSMauro Carvalho Chehab
1050e7b8153eSMauro Carvalho Chehab bdisp->vdev.fops = &bdisp_fops;
1051e7b8153eSMauro Carvalho Chehab bdisp->vdev.ioctl_ops = &bdisp_ioctl_ops;
1052e7b8153eSMauro Carvalho Chehab bdisp->vdev.release = video_device_release_empty;
1053e7b8153eSMauro Carvalho Chehab bdisp->vdev.lock = &bdisp->lock;
1054e7b8153eSMauro Carvalho Chehab bdisp->vdev.vfl_dir = VFL_DIR_M2M;
1055e7b8153eSMauro Carvalho Chehab bdisp->vdev.v4l2_dev = &bdisp->v4l2_dev;
1056e7b8153eSMauro Carvalho Chehab bdisp->vdev.device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M;
1057e7b8153eSMauro Carvalho Chehab snprintf(bdisp->vdev.name, sizeof(bdisp->vdev.name), "%s.%d",
1058e7b8153eSMauro Carvalho Chehab BDISP_NAME, bdisp->id);
1059e7b8153eSMauro Carvalho Chehab
1060e7b8153eSMauro Carvalho Chehab video_set_drvdata(&bdisp->vdev, bdisp);
1061e7b8153eSMauro Carvalho Chehab
1062e7b8153eSMauro Carvalho Chehab bdisp->m2m.vdev = &bdisp->vdev;
1063e7b8153eSMauro Carvalho Chehab bdisp->m2m.m2m_dev = v4l2_m2m_init(&bdisp_m2m_ops);
1064e7b8153eSMauro Carvalho Chehab if (IS_ERR(bdisp->m2m.m2m_dev)) {
1065e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "failed to initialize v4l2-m2m device\n");
1066e7b8153eSMauro Carvalho Chehab return PTR_ERR(bdisp->m2m.m2m_dev);
1067e7b8153eSMauro Carvalho Chehab }
1068e7b8153eSMauro Carvalho Chehab
1069e7b8153eSMauro Carvalho Chehab ret = video_register_device(&bdisp->vdev, VFL_TYPE_VIDEO, -1);
1070e7b8153eSMauro Carvalho Chehab if (ret) {
1071e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev,
1072e7b8153eSMauro Carvalho Chehab "%s(): failed to register video device\n", __func__);
1073e7b8153eSMauro Carvalho Chehab v4l2_m2m_release(bdisp->m2m.m2m_dev);
1074e7b8153eSMauro Carvalho Chehab return ret;
1075e7b8153eSMauro Carvalho Chehab }
1076e7b8153eSMauro Carvalho Chehab
1077e7b8153eSMauro Carvalho Chehab return 0;
1078e7b8153eSMauro Carvalho Chehab }
1079e7b8153eSMauro Carvalho Chehab
bdisp_unregister_device(struct bdisp_dev * bdisp)1080e7b8153eSMauro Carvalho Chehab static void bdisp_unregister_device(struct bdisp_dev *bdisp)
1081e7b8153eSMauro Carvalho Chehab {
1082e7b8153eSMauro Carvalho Chehab if (!bdisp)
1083e7b8153eSMauro Carvalho Chehab return;
1084e7b8153eSMauro Carvalho Chehab
1085e7b8153eSMauro Carvalho Chehab if (bdisp->m2m.m2m_dev)
1086e7b8153eSMauro Carvalho Chehab v4l2_m2m_release(bdisp->m2m.m2m_dev);
1087e7b8153eSMauro Carvalho Chehab
1088e7b8153eSMauro Carvalho Chehab video_unregister_device(bdisp->m2m.vdev);
1089e7b8153eSMauro Carvalho Chehab }
1090e7b8153eSMauro Carvalho Chehab
bdisp_irq_thread(int irq,void * priv)1091e7b8153eSMauro Carvalho Chehab static irqreturn_t bdisp_irq_thread(int irq, void *priv)
1092e7b8153eSMauro Carvalho Chehab {
1093e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = priv;
1094e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx;
1095e7b8153eSMauro Carvalho Chehab
1096e7b8153eSMauro Carvalho Chehab spin_lock(&bdisp->slock);
1097e7b8153eSMauro Carvalho Chehab
1098e7b8153eSMauro Carvalho Chehab bdisp_dbg_perf_end(bdisp);
1099e7b8153eSMauro Carvalho Chehab
1100e7b8153eSMauro Carvalho Chehab cancel_delayed_work(&bdisp->timeout_work);
1101e7b8153eSMauro Carvalho Chehab
1102e7b8153eSMauro Carvalho Chehab if (!test_and_clear_bit(ST_M2M_RUNNING, &bdisp->state))
1103e7b8153eSMauro Carvalho Chehab goto isr_unlock;
1104e7b8153eSMauro Carvalho Chehab
1105e7b8153eSMauro Carvalho Chehab if (test_and_clear_bit(ST_M2M_SUSPENDING, &bdisp->state)) {
1106e7b8153eSMauro Carvalho Chehab set_bit(ST_M2M_SUSPENDED, &bdisp->state);
1107e7b8153eSMauro Carvalho Chehab wake_up(&bdisp->irq_queue);
1108e7b8153eSMauro Carvalho Chehab goto isr_unlock;
1109e7b8153eSMauro Carvalho Chehab }
1110e7b8153eSMauro Carvalho Chehab
1111e7b8153eSMauro Carvalho Chehab ctx = v4l2_m2m_get_curr_priv(bdisp->m2m.m2m_dev);
1112e7b8153eSMauro Carvalho Chehab if (!ctx || !ctx->fh.m2m_ctx)
1113e7b8153eSMauro Carvalho Chehab goto isr_unlock;
1114e7b8153eSMauro Carvalho Chehab
1115e7b8153eSMauro Carvalho Chehab spin_unlock(&bdisp->slock);
1116e7b8153eSMauro Carvalho Chehab
1117e7b8153eSMauro Carvalho Chehab bdisp_job_finish(ctx, VB2_BUF_STATE_DONE);
1118e7b8153eSMauro Carvalho Chehab
1119e7b8153eSMauro Carvalho Chehab if (bdisp_ctx_state_is_set(BDISP_CTX_STOP_REQ, ctx)) {
1120e7b8153eSMauro Carvalho Chehab bdisp_ctx_state_lock_clear(BDISP_CTX_STOP_REQ, ctx);
1121e7b8153eSMauro Carvalho Chehab wake_up(&bdisp->irq_queue);
1122e7b8153eSMauro Carvalho Chehab }
1123e7b8153eSMauro Carvalho Chehab
1124e7b8153eSMauro Carvalho Chehab return IRQ_HANDLED;
1125e7b8153eSMauro Carvalho Chehab
1126e7b8153eSMauro Carvalho Chehab isr_unlock:
1127e7b8153eSMauro Carvalho Chehab spin_unlock(&bdisp->slock);
1128e7b8153eSMauro Carvalho Chehab
1129e7b8153eSMauro Carvalho Chehab return IRQ_HANDLED;
1130e7b8153eSMauro Carvalho Chehab }
1131e7b8153eSMauro Carvalho Chehab
bdisp_irq_handler(int irq,void * priv)1132e7b8153eSMauro Carvalho Chehab static irqreturn_t bdisp_irq_handler(int irq, void *priv)
1133e7b8153eSMauro Carvalho Chehab {
1134e7b8153eSMauro Carvalho Chehab if (bdisp_hw_get_and_clear_irq((struct bdisp_dev *)priv))
1135e7b8153eSMauro Carvalho Chehab return IRQ_NONE;
1136e7b8153eSMauro Carvalho Chehab else
1137e7b8153eSMauro Carvalho Chehab return IRQ_WAKE_THREAD;
1138e7b8153eSMauro Carvalho Chehab }
1139e7b8153eSMauro Carvalho Chehab
bdisp_irq_timeout(struct work_struct * ptr)1140e7b8153eSMauro Carvalho Chehab static void bdisp_irq_timeout(struct work_struct *ptr)
1141e7b8153eSMauro Carvalho Chehab {
1142e7b8153eSMauro Carvalho Chehab struct delayed_work *twork = to_delayed_work(ptr);
1143e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = container_of(twork, struct bdisp_dev,
1144e7b8153eSMauro Carvalho Chehab timeout_work);
1145e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx;
1146e7b8153eSMauro Carvalho Chehab
1147e7b8153eSMauro Carvalho Chehab ctx = v4l2_m2m_get_curr_priv(bdisp->m2m.m2m_dev);
1148e7b8153eSMauro Carvalho Chehab
1149e7b8153eSMauro Carvalho Chehab dev_err(ctx->bdisp_dev->dev, "Device work timeout\n");
1150e7b8153eSMauro Carvalho Chehab
1151e7b8153eSMauro Carvalho Chehab spin_lock(&bdisp->slock);
1152e7b8153eSMauro Carvalho Chehab clear_bit(ST_M2M_RUNNING, &bdisp->state);
1153e7b8153eSMauro Carvalho Chehab spin_unlock(&bdisp->slock);
1154e7b8153eSMauro Carvalho Chehab
1155e7b8153eSMauro Carvalho Chehab bdisp_hw_reset(bdisp);
1156e7b8153eSMauro Carvalho Chehab
1157e7b8153eSMauro Carvalho Chehab bdisp_job_finish(ctx, VB2_BUF_STATE_ERROR);
1158e7b8153eSMauro Carvalho Chehab }
1159e7b8153eSMauro Carvalho Chehab
bdisp_m2m_suspend(struct bdisp_dev * bdisp)1160e7b8153eSMauro Carvalho Chehab static int bdisp_m2m_suspend(struct bdisp_dev *bdisp)
1161e7b8153eSMauro Carvalho Chehab {
1162e7b8153eSMauro Carvalho Chehab unsigned long flags;
1163e7b8153eSMauro Carvalho Chehab int timeout;
1164e7b8153eSMauro Carvalho Chehab
1165e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&bdisp->slock, flags);
1166e7b8153eSMauro Carvalho Chehab if (!test_bit(ST_M2M_RUNNING, &bdisp->state)) {
1167e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&bdisp->slock, flags);
1168e7b8153eSMauro Carvalho Chehab return 0;
1169e7b8153eSMauro Carvalho Chehab }
1170e7b8153eSMauro Carvalho Chehab clear_bit(ST_M2M_SUSPENDED, &bdisp->state);
1171e7b8153eSMauro Carvalho Chehab set_bit(ST_M2M_SUSPENDING, &bdisp->state);
1172e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&bdisp->slock, flags);
1173e7b8153eSMauro Carvalho Chehab
1174e7b8153eSMauro Carvalho Chehab timeout = wait_event_timeout(bdisp->irq_queue,
1175e7b8153eSMauro Carvalho Chehab test_bit(ST_M2M_SUSPENDED, &bdisp->state),
1176e7b8153eSMauro Carvalho Chehab BDISP_WORK_TIMEOUT);
1177e7b8153eSMauro Carvalho Chehab
1178e7b8153eSMauro Carvalho Chehab clear_bit(ST_M2M_SUSPENDING, &bdisp->state);
1179e7b8153eSMauro Carvalho Chehab
1180e7b8153eSMauro Carvalho Chehab if (!timeout) {
1181e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "%s IRQ timeout\n", __func__);
1182e7b8153eSMauro Carvalho Chehab return -EAGAIN;
1183e7b8153eSMauro Carvalho Chehab }
1184e7b8153eSMauro Carvalho Chehab
1185e7b8153eSMauro Carvalho Chehab return 0;
1186e7b8153eSMauro Carvalho Chehab }
1187e7b8153eSMauro Carvalho Chehab
bdisp_m2m_resume(struct bdisp_dev * bdisp)1188e7b8153eSMauro Carvalho Chehab static int bdisp_m2m_resume(struct bdisp_dev *bdisp)
1189e7b8153eSMauro Carvalho Chehab {
1190e7b8153eSMauro Carvalho Chehab struct bdisp_ctx *ctx;
1191e7b8153eSMauro Carvalho Chehab unsigned long flags;
1192e7b8153eSMauro Carvalho Chehab
1193e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&bdisp->slock, flags);
1194e7b8153eSMauro Carvalho Chehab ctx = bdisp->m2m.ctx;
1195e7b8153eSMauro Carvalho Chehab bdisp->m2m.ctx = NULL;
1196e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&bdisp->slock, flags);
1197e7b8153eSMauro Carvalho Chehab
1198e7b8153eSMauro Carvalho Chehab if (test_and_clear_bit(ST_M2M_SUSPENDED, &bdisp->state))
1199e7b8153eSMauro Carvalho Chehab bdisp_job_finish(ctx, VB2_BUF_STATE_ERROR);
1200e7b8153eSMauro Carvalho Chehab
1201e7b8153eSMauro Carvalho Chehab return 0;
1202e7b8153eSMauro Carvalho Chehab }
1203e7b8153eSMauro Carvalho Chehab
bdisp_runtime_resume(struct device * dev)1204e7b8153eSMauro Carvalho Chehab static int bdisp_runtime_resume(struct device *dev)
1205e7b8153eSMauro Carvalho Chehab {
1206e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = dev_get_drvdata(dev);
1207e7b8153eSMauro Carvalho Chehab int ret = clk_enable(bdisp->clock);
1208e7b8153eSMauro Carvalho Chehab
1209e7b8153eSMauro Carvalho Chehab if (ret)
1210e7b8153eSMauro Carvalho Chehab return ret;
1211e7b8153eSMauro Carvalho Chehab
1212e7b8153eSMauro Carvalho Chehab return bdisp_m2m_resume(bdisp);
1213e7b8153eSMauro Carvalho Chehab }
1214e7b8153eSMauro Carvalho Chehab
bdisp_runtime_suspend(struct device * dev)1215e7b8153eSMauro Carvalho Chehab static int bdisp_runtime_suspend(struct device *dev)
1216e7b8153eSMauro Carvalho Chehab {
1217e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = dev_get_drvdata(dev);
1218e7b8153eSMauro Carvalho Chehab int ret = bdisp_m2m_suspend(bdisp);
1219e7b8153eSMauro Carvalho Chehab
1220e7b8153eSMauro Carvalho Chehab if (!ret)
1221e7b8153eSMauro Carvalho Chehab clk_disable(bdisp->clock);
1222e7b8153eSMauro Carvalho Chehab
1223e7b8153eSMauro Carvalho Chehab return ret;
1224e7b8153eSMauro Carvalho Chehab }
1225e7b8153eSMauro Carvalho Chehab
bdisp_resume(struct device * dev)1226e7b8153eSMauro Carvalho Chehab static int bdisp_resume(struct device *dev)
1227e7b8153eSMauro Carvalho Chehab {
1228e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = dev_get_drvdata(dev);
1229e7b8153eSMauro Carvalho Chehab unsigned long flags;
1230e7b8153eSMauro Carvalho Chehab int opened;
1231e7b8153eSMauro Carvalho Chehab
1232e7b8153eSMauro Carvalho Chehab spin_lock_irqsave(&bdisp->slock, flags);
1233e7b8153eSMauro Carvalho Chehab opened = test_bit(ST_M2M_OPEN, &bdisp->state);
1234e7b8153eSMauro Carvalho Chehab spin_unlock_irqrestore(&bdisp->slock, flags);
1235e7b8153eSMauro Carvalho Chehab
1236e7b8153eSMauro Carvalho Chehab if (!opened)
1237e7b8153eSMauro Carvalho Chehab return 0;
1238e7b8153eSMauro Carvalho Chehab
1239e7b8153eSMauro Carvalho Chehab if (!pm_runtime_suspended(dev))
1240e7b8153eSMauro Carvalho Chehab return bdisp_runtime_resume(dev);
1241e7b8153eSMauro Carvalho Chehab
1242e7b8153eSMauro Carvalho Chehab return 0;
1243e7b8153eSMauro Carvalho Chehab }
1244e7b8153eSMauro Carvalho Chehab
bdisp_suspend(struct device * dev)1245e7b8153eSMauro Carvalho Chehab static int bdisp_suspend(struct device *dev)
1246e7b8153eSMauro Carvalho Chehab {
1247e7b8153eSMauro Carvalho Chehab if (!pm_runtime_suspended(dev))
1248e7b8153eSMauro Carvalho Chehab return bdisp_runtime_suspend(dev);
1249e7b8153eSMauro Carvalho Chehab
1250e7b8153eSMauro Carvalho Chehab return 0;
1251e7b8153eSMauro Carvalho Chehab }
1252e7b8153eSMauro Carvalho Chehab
1253e7b8153eSMauro Carvalho Chehab static const struct dev_pm_ops bdisp_pm_ops = {
1254e7b8153eSMauro Carvalho Chehab .suspend = bdisp_suspend,
1255e7b8153eSMauro Carvalho Chehab .resume = bdisp_resume,
1256e7b8153eSMauro Carvalho Chehab .runtime_suspend = bdisp_runtime_suspend,
1257e7b8153eSMauro Carvalho Chehab .runtime_resume = bdisp_runtime_resume,
1258e7b8153eSMauro Carvalho Chehab };
1259e7b8153eSMauro Carvalho Chehab
bdisp_remove(struct platform_device * pdev)1260*5efb273eSUwe Kleine-König static void bdisp_remove(struct platform_device *pdev)
1261e7b8153eSMauro Carvalho Chehab {
1262e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp = platform_get_drvdata(pdev);
1263e7b8153eSMauro Carvalho Chehab
1264e7b8153eSMauro Carvalho Chehab bdisp_unregister_device(bdisp);
1265e7b8153eSMauro Carvalho Chehab
1266e7b8153eSMauro Carvalho Chehab bdisp_hw_free_filters(bdisp->dev);
1267e7b8153eSMauro Carvalho Chehab
1268e7b8153eSMauro Carvalho Chehab pm_runtime_disable(&pdev->dev);
1269e7b8153eSMauro Carvalho Chehab
1270e7b8153eSMauro Carvalho Chehab bdisp_debugfs_remove(bdisp);
1271e7b8153eSMauro Carvalho Chehab
1272e7b8153eSMauro Carvalho Chehab v4l2_device_unregister(&bdisp->v4l2_dev);
1273e7b8153eSMauro Carvalho Chehab
1274e7b8153eSMauro Carvalho Chehab if (!IS_ERR(bdisp->clock))
1275e7b8153eSMauro Carvalho Chehab clk_unprepare(bdisp->clock);
1276e7b8153eSMauro Carvalho Chehab
1277e7b8153eSMauro Carvalho Chehab destroy_workqueue(bdisp->work_queue);
1278e7b8153eSMauro Carvalho Chehab
1279e7b8153eSMauro Carvalho Chehab dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
1280e7b8153eSMauro Carvalho Chehab }
1281e7b8153eSMauro Carvalho Chehab
bdisp_probe(struct platform_device * pdev)1282e7b8153eSMauro Carvalho Chehab static int bdisp_probe(struct platform_device *pdev)
1283e7b8153eSMauro Carvalho Chehab {
1284e7b8153eSMauro Carvalho Chehab struct bdisp_dev *bdisp;
1285e7b8153eSMauro Carvalho Chehab struct device *dev = &pdev->dev;
1286e7b8153eSMauro Carvalho Chehab int ret;
1287e7b8153eSMauro Carvalho Chehab
1288e7b8153eSMauro Carvalho Chehab dev_dbg(dev, "%s\n", __func__);
1289e7b8153eSMauro Carvalho Chehab
1290e7b8153eSMauro Carvalho Chehab bdisp = devm_kzalloc(dev, sizeof(struct bdisp_dev), GFP_KERNEL);
1291e7b8153eSMauro Carvalho Chehab if (!bdisp)
1292e7b8153eSMauro Carvalho Chehab return -ENOMEM;
1293e7b8153eSMauro Carvalho Chehab
1294e7b8153eSMauro Carvalho Chehab ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
1295e7b8153eSMauro Carvalho Chehab if (ret)
1296e7b8153eSMauro Carvalho Chehab return ret;
1297e7b8153eSMauro Carvalho Chehab
1298e7b8153eSMauro Carvalho Chehab bdisp->pdev = pdev;
1299e7b8153eSMauro Carvalho Chehab bdisp->dev = dev;
1300e7b8153eSMauro Carvalho Chehab platform_set_drvdata(pdev, bdisp);
1301e7b8153eSMauro Carvalho Chehab
1302e7b8153eSMauro Carvalho Chehab if (dev->of_node)
1303e7b8153eSMauro Carvalho Chehab bdisp->id = of_alias_get_id(pdev->dev.of_node, BDISP_NAME);
1304e7b8153eSMauro Carvalho Chehab else
1305e7b8153eSMauro Carvalho Chehab bdisp->id = pdev->id;
1306e7b8153eSMauro Carvalho Chehab
1307e7b8153eSMauro Carvalho Chehab init_waitqueue_head(&bdisp->irq_queue);
1308e7b8153eSMauro Carvalho Chehab INIT_DELAYED_WORK(&bdisp->timeout_work, bdisp_irq_timeout);
1309e7b8153eSMauro Carvalho Chehab bdisp->work_queue = create_workqueue(BDISP_NAME);
13102371adeaSJiasheng Jiang if (!bdisp->work_queue)
13112371adeaSJiasheng Jiang return -ENOMEM;
1312e7b8153eSMauro Carvalho Chehab
1313e7b8153eSMauro Carvalho Chehab spin_lock_init(&bdisp->slock);
1314e7b8153eSMauro Carvalho Chehab mutex_init(&bdisp->lock);
1315e7b8153eSMauro Carvalho Chehab
1316e7b8153eSMauro Carvalho Chehab /* get resources */
1317e7b8153eSMauro Carvalho Chehab bdisp->regs = devm_platform_ioremap_resource(pdev, 0);
1318e7b8153eSMauro Carvalho Chehab if (IS_ERR(bdisp->regs)) {
1319e7b8153eSMauro Carvalho Chehab ret = PTR_ERR(bdisp->regs);
1320e7b8153eSMauro Carvalho Chehab goto err_wq;
1321e7b8153eSMauro Carvalho Chehab }
1322e7b8153eSMauro Carvalho Chehab
1323e7b8153eSMauro Carvalho Chehab bdisp->clock = devm_clk_get(dev, BDISP_NAME);
1324e7b8153eSMauro Carvalho Chehab if (IS_ERR(bdisp->clock)) {
1325e7b8153eSMauro Carvalho Chehab dev_err(dev, "failed to get clock\n");
1326e7b8153eSMauro Carvalho Chehab ret = PTR_ERR(bdisp->clock);
1327e7b8153eSMauro Carvalho Chehab goto err_wq;
1328e7b8153eSMauro Carvalho Chehab }
1329e7b8153eSMauro Carvalho Chehab
1330e7b8153eSMauro Carvalho Chehab ret = clk_prepare(bdisp->clock);
1331e7b8153eSMauro Carvalho Chehab if (ret < 0) {
1332e7b8153eSMauro Carvalho Chehab dev_err(dev, "clock prepare failed\n");
1333e7b8153eSMauro Carvalho Chehab bdisp->clock = ERR_PTR(-EINVAL);
1334e7b8153eSMauro Carvalho Chehab goto err_wq;
1335e7b8153eSMauro Carvalho Chehab }
1336e7b8153eSMauro Carvalho Chehab
1337e7b8153eSMauro Carvalho Chehab ret = platform_get_irq(pdev, 0);
1338e7b8153eSMauro Carvalho Chehab if (ret < 0)
1339e7b8153eSMauro Carvalho Chehab goto err_clk;
1340e7b8153eSMauro Carvalho Chehab
1341e7b8153eSMauro Carvalho Chehab ret = devm_request_threaded_irq(dev, ret, bdisp_irq_handler,
1342e7b8153eSMauro Carvalho Chehab bdisp_irq_thread, IRQF_ONESHOT,
1343e7b8153eSMauro Carvalho Chehab pdev->name, bdisp);
1344e7b8153eSMauro Carvalho Chehab if (ret) {
1345e7b8153eSMauro Carvalho Chehab dev_err(dev, "failed to install irq\n");
1346e7b8153eSMauro Carvalho Chehab goto err_clk;
1347e7b8153eSMauro Carvalho Chehab }
1348e7b8153eSMauro Carvalho Chehab
1349e7b8153eSMauro Carvalho Chehab /* v4l2 register */
1350e7b8153eSMauro Carvalho Chehab ret = v4l2_device_register(dev, &bdisp->v4l2_dev);
1351e7b8153eSMauro Carvalho Chehab if (ret) {
1352e7b8153eSMauro Carvalho Chehab dev_err(dev, "failed to register\n");
1353e7b8153eSMauro Carvalho Chehab goto err_clk;
1354e7b8153eSMauro Carvalho Chehab }
1355e7b8153eSMauro Carvalho Chehab
1356e7b8153eSMauro Carvalho Chehab /* Debug */
1357e7b8153eSMauro Carvalho Chehab bdisp_debugfs_create(bdisp);
1358e7b8153eSMauro Carvalho Chehab
1359e7b8153eSMauro Carvalho Chehab /* Power management */
1360e7b8153eSMauro Carvalho Chehab pm_runtime_enable(dev);
1361e7b8153eSMauro Carvalho Chehab ret = pm_runtime_resume_and_get(dev);
1362e7b8153eSMauro Carvalho Chehab if (ret < 0) {
1363e7b8153eSMauro Carvalho Chehab dev_err(dev, "failed to set PM\n");
1364e7b8153eSMauro Carvalho Chehab goto err_remove;
1365e7b8153eSMauro Carvalho Chehab }
1366e7b8153eSMauro Carvalho Chehab
1367e7b8153eSMauro Carvalho Chehab /* Filters */
1368e7b8153eSMauro Carvalho Chehab if (bdisp_hw_alloc_filters(bdisp->dev)) {
1369e7b8153eSMauro Carvalho Chehab dev_err(bdisp->dev, "no memory for filters\n");
1370e7b8153eSMauro Carvalho Chehab ret = -ENOMEM;
1371e7b8153eSMauro Carvalho Chehab goto err_pm;
1372e7b8153eSMauro Carvalho Chehab }
1373e7b8153eSMauro Carvalho Chehab
1374e7b8153eSMauro Carvalho Chehab /* Register */
1375e7b8153eSMauro Carvalho Chehab ret = bdisp_register_device(bdisp);
1376e7b8153eSMauro Carvalho Chehab if (ret) {
1377e7b8153eSMauro Carvalho Chehab dev_err(dev, "failed to register\n");
1378e7b8153eSMauro Carvalho Chehab goto err_filter;
1379e7b8153eSMauro Carvalho Chehab }
1380e7b8153eSMauro Carvalho Chehab
1381e7b8153eSMauro Carvalho Chehab dev_info(dev, "%s%d registered as /dev/video%d\n", BDISP_NAME,
1382e7b8153eSMauro Carvalho Chehab bdisp->id, bdisp->vdev.num);
1383e7b8153eSMauro Carvalho Chehab
1384e7b8153eSMauro Carvalho Chehab pm_runtime_put(dev);
1385e7b8153eSMauro Carvalho Chehab
1386e7b8153eSMauro Carvalho Chehab return 0;
1387e7b8153eSMauro Carvalho Chehab
1388e7b8153eSMauro Carvalho Chehab err_filter:
1389e7b8153eSMauro Carvalho Chehab bdisp_hw_free_filters(bdisp->dev);
1390e7b8153eSMauro Carvalho Chehab err_pm:
1391e7b8153eSMauro Carvalho Chehab pm_runtime_put(dev);
1392e7b8153eSMauro Carvalho Chehab err_remove:
1393e7b8153eSMauro Carvalho Chehab pm_runtime_disable(dev);
1394e7b8153eSMauro Carvalho Chehab bdisp_debugfs_remove(bdisp);
1395e7b8153eSMauro Carvalho Chehab v4l2_device_unregister(&bdisp->v4l2_dev);
1396e7b8153eSMauro Carvalho Chehab err_clk:
1397e7b8153eSMauro Carvalho Chehab clk_unprepare(bdisp->clock);
1398e7b8153eSMauro Carvalho Chehab err_wq:
1399e7b8153eSMauro Carvalho Chehab destroy_workqueue(bdisp->work_queue);
1400e7b8153eSMauro Carvalho Chehab return ret;
1401e7b8153eSMauro Carvalho Chehab }
1402e7b8153eSMauro Carvalho Chehab
1403e7b8153eSMauro Carvalho Chehab static const struct of_device_id bdisp_match_types[] = {
1404e7b8153eSMauro Carvalho Chehab {
1405e7b8153eSMauro Carvalho Chehab .compatible = "st,stih407-bdisp",
1406e7b8153eSMauro Carvalho Chehab },
1407e7b8153eSMauro Carvalho Chehab { /* end node */ }
1408e7b8153eSMauro Carvalho Chehab };
1409e7b8153eSMauro Carvalho Chehab
1410e7b8153eSMauro Carvalho Chehab MODULE_DEVICE_TABLE(of, bdisp_match_types);
1411e7b8153eSMauro Carvalho Chehab
1412e7b8153eSMauro Carvalho Chehab static struct platform_driver bdisp_driver = {
1413e7b8153eSMauro Carvalho Chehab .probe = bdisp_probe,
1414*5efb273eSUwe Kleine-König .remove_new = bdisp_remove,
1415e7b8153eSMauro Carvalho Chehab .driver = {
1416e7b8153eSMauro Carvalho Chehab .name = BDISP_NAME,
1417e7b8153eSMauro Carvalho Chehab .of_match_table = bdisp_match_types,
1418e7b8153eSMauro Carvalho Chehab .pm = &bdisp_pm_ops,
1419e7b8153eSMauro Carvalho Chehab },
1420e7b8153eSMauro Carvalho Chehab };
1421e7b8153eSMauro Carvalho Chehab
1422e7b8153eSMauro Carvalho Chehab module_platform_driver(bdisp_driver);
1423e7b8153eSMauro Carvalho Chehab
1424e7b8153eSMauro Carvalho Chehab MODULE_DESCRIPTION("2D blitter for STMicroelectronics SoC");
1425e7b8153eSMauro Carvalho Chehab MODULE_AUTHOR("Fabien Dessenne <fabien.dessenne@st.com>");
1426e7b8153eSMauro Carvalho Chehab MODULE_LICENSE("GPL");
1427