| /* |
| * Copyright (C) 2016 Freescale Semiconductor, Inc. |
| * Copyright 2017-2018 NXP |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * for more details. |
| */ |
| |
| #include <linux/io.h> |
| #include <linux/module.h> |
| #include <linux/mutex.h> |
| #include <linux/platform_device.h> |
| #include <linux/types.h> |
| #include <video/dpu.h> |
| #include "dpu-prv.h" |
| |
| #define PIXENGCFG_STATUS 0x8 |
| #define BASEADDRESS(n) (0x10 + (n) * 0x28) |
| #define SOURCEBUFFERATTRIBUTES(n) (0x14 + (n) * 0x28) |
| #define SOURCEBUFFERDIMENSION(n) (0x18 + (n) * 0x28) |
| #define COLORCOMPONENTBITS(n) (0x1C + (n) * 0x28) |
| #define COLORCOMPONENTSHIFT(n) (0x20 + (n) * 0x28) |
| #define LAYEROFFSET(n) (0x24 + (n) * 0x28) |
| #define CLIPWINDOWOFFSET(n) (0x28 + (n) * 0x28) |
| #define CLIPWINDOWDIMENSIONS(n) (0x2C + (n) * 0x28) |
| #define CONSTANTCOLOR(n) (0x30 + (n) * 0x28) |
| #define LAYERPROPERTY(n) (0x34 + (n) * 0x28) |
| #define FRAMEDIMENSIONS 0x150 |
| #define FRAMERESAMPLING 0x154 |
| #define CONTROL 0x158 |
| #define TRIGGERENABLE 0x15C |
| #define SHDLDREQ(lm) ((lm) & 0xFF) |
| #define CONTROLTRIGGER 0x160 |
| #define START 0x164 |
| #define FETCHTYPE 0x168 |
| #define BURSTBUFFERPROPERTIES 0x16C |
| #define STATUS 0x170 |
| #define HIDDENSTATUS 0x174 |
| |
| static const shadow_load_req_t fl_shdlreqs[] = { |
| SHLDREQID_FETCHLAYER0, SHLDREQID_FETCHLAYER1, |
| }; |
| |
| struct dpu_fetchlayer { |
| struct dpu_fetchunit fu; |
| fetchtype_t fetchtype; |
| shadow_load_req_t shdlreq; |
| }; |
| |
| static void |
| fetchlayer_set_src_buf_dimensions(struct dpu_fetchunit *fu, |
| unsigned int w, unsigned int h, |
| u32 unused1, bool unused2) |
| { |
| u32 val; |
| |
| val = LINEWIDTH(w) | LINECOUNT(h); |
| |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, val, SOURCEBUFFERDIMENSION(fu->sub_id)); |
| mutex_unlock(&fu->mutex); |
| } |
| |
| static void fetchlayer_set_fmt(struct dpu_fetchunit *fu, u32 fmt, bool unused) |
| { |
| u32 val, bits, shift; |
| int i, sub_id = fu->sub_id; |
| |
| mutex_lock(&fu->mutex); |
| val = dpu_fu_read(fu, LAYERPROPERTY(sub_id)); |
| val &= ~YUVCONVERSIONMODE_MASK; |
| val |= YUVCONVERSIONMODE(YUVCONVERSIONMODE__OFF); |
| dpu_fu_write(fu, val, LAYERPROPERTY(sub_id)); |
| mutex_unlock(&fu->mutex); |
| |
| for (i = 0; i < ARRAY_SIZE(dpu_pixel_format_matrix); i++) { |
| if (dpu_pixel_format_matrix[i].pixel_format == fmt) { |
| bits = dpu_pixel_format_matrix[i].bits; |
| shift = dpu_pixel_format_matrix[i].shift; |
| |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, bits, COLORCOMPONENTBITS(sub_id)); |
| dpu_fu_write(fu, shift, COLORCOMPONENTSHIFT(sub_id)); |
| mutex_unlock(&fu->mutex); |
| return; |
| } |
| } |
| |
| WARN_ON(1); |
| } |
| |
| static void |
| fetchlayer_set_framedimensions(struct dpu_fetchunit *fu, unsigned int w, |
| unsigned int h, bool unused) |
| { |
| u32 val; |
| |
| val = FRAMEWIDTH(w) | FRAMEHEIGHT(h); |
| |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, val, FRAMEDIMENSIONS); |
| mutex_unlock(&fu->mutex); |
| } |
| |
| void fetchlayer_rgb_constantcolor(struct dpu_fetchunit *fu, |
| u8 r, u8 g, u8 b, u8 a) |
| { |
| u32 val; |
| |
| val = rgb_color(r, g, b, a); |
| |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, val, CONSTANTCOLOR(fu->id)); |
| mutex_unlock(&fu->mutex); |
| } |
| EXPORT_SYMBOL_GPL(fetchlayer_rgb_constantcolor); |
| |
| void fetchlayer_yuv_constantcolor(struct dpu_fetchunit *fu, u8 y, u8 u, u8 v) |
| { |
| u32 val; |
| |
| val = yuv_color(y, u, v); |
| |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, val, CONSTANTCOLOR(fu->id)); |
| mutex_unlock(&fu->mutex); |
| } |
| EXPORT_SYMBOL_GPL(fetchlayer_yuv_constantcolor); |
| |
| static void fetchlayer_set_controltrigger(struct dpu_fetchunit *fu) |
| { |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, SHDTOKGEN, CONTROLTRIGGER); |
| mutex_unlock(&fu->mutex); |
| } |
| |
| int fetchlayer_fetchtype(struct dpu_fetchunit *fu, fetchtype_t *type) |
| { |
| struct dpu_soc *dpu = fu->dpu; |
| u32 val; |
| |
| mutex_lock(&fu->mutex); |
| val = dpu_fu_read(fu, FETCHTYPE); |
| val &= FETCHTYPE_MASK; |
| mutex_unlock(&fu->mutex); |
| |
| switch (val) { |
| case FETCHTYPE__DECODE: |
| dev_dbg(dpu->dev, "FetchLayer%d with RL and RLAD decoder\n", |
| fu->id); |
| break; |
| case FETCHTYPE__LAYER: |
| dev_dbg(dpu->dev, "FetchLayer%d with fractional " |
| "plane(8 layers)\n", fu->id); |
| break; |
| case FETCHTYPE__WARP: |
| dev_dbg(dpu->dev, "FetchLayer%d with arbitrary warping and " |
| "fractional plane(8 layers)\n", fu->id); |
| break; |
| case FETCHTYPE__ECO: |
| dev_dbg(dpu->dev, "FetchLayer%d with minimum feature set for " |
| "alpha, chroma and coordinate planes\n", |
| fu->id); |
| break; |
| case FETCHTYPE__PERSP: |
| dev_dbg(dpu->dev, "FetchLayer%d with affine, perspective and " |
| "arbitrary warping\n", fu->id); |
| break; |
| case FETCHTYPE__ROT: |
| dev_dbg(dpu->dev, "FetchLayer%d with affine and arbitrary " |
| "warping\n", fu->id); |
| break; |
| case FETCHTYPE__DECODEL: |
| dev_dbg(dpu->dev, "FetchLayer%d with RL and RLAD decoder, " |
| "reduced feature set\n", fu->id); |
| break; |
| case FETCHTYPE__LAYERL: |
| dev_dbg(dpu->dev, "FetchLayer%d with fractional " |
| "plane(8 layers), reduced feature set\n", |
| fu->id); |
| break; |
| case FETCHTYPE__ROTL: |
| dev_dbg(dpu->dev, "FetchLayer%d with affine and arbitrary " |
| "warping, reduced feature set\n", fu->id); |
| break; |
| default: |
| dev_warn(dpu->dev, "Invalid fetch type %u for FetchLayer%d\n", |
| val, fu->id); |
| return -EINVAL; |
| } |
| |
| *type = val; |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(fetchlayer_fetchtype); |
| |
| struct dpu_fetchunit *dpu_fl_get(struct dpu_soc *dpu, int id) |
| { |
| struct dpu_fetchunit *fu; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(fl_ids); i++) |
| if (fl_ids[i] == id) |
| break; |
| |
| if (i == ARRAY_SIZE(fl_ids)) |
| return ERR_PTR(-EINVAL); |
| |
| fu = dpu->fl_priv[i]; |
| |
| mutex_lock(&fu->mutex); |
| |
| if (fu->inuse) { |
| mutex_unlock(&fu->mutex); |
| return ERR_PTR(-EBUSY); |
| } |
| |
| fu->inuse = true; |
| |
| mutex_unlock(&fu->mutex); |
| |
| return fu; |
| } |
| EXPORT_SYMBOL_GPL(dpu_fl_get); |
| |
| void dpu_fl_put(struct dpu_fetchunit *fu) |
| { |
| mutex_lock(&fu->mutex); |
| |
| fu->inuse = false; |
| |
| mutex_unlock(&fu->mutex); |
| } |
| EXPORT_SYMBOL_GPL(dpu_fl_put); |
| |
| static const struct dpu_fetchunit_ops fl_ops = { |
| .set_burstlength = fetchunit_set_burstlength, |
| .set_baseaddress = fetchunit_set_baseaddress, |
| .set_src_bpp = fetchunit_set_src_bpp, |
| .set_src_stride = fetchunit_set_src_stride, |
| .set_src_buf_dimensions = fetchlayer_set_src_buf_dimensions, |
| .set_fmt = fetchlayer_set_fmt, |
| .enable_src_buf = fetchunit_enable_src_buf, |
| .disable_src_buf = fetchunit_disable_src_buf, |
| .is_enabled = fetchunit_is_enabled, |
| .set_framedimensions = fetchlayer_set_framedimensions, |
| .set_controltrigger = fetchlayer_set_controltrigger, |
| .get_stream_id = fetchunit_get_stream_id, |
| .set_stream_id = fetchunit_set_stream_id, |
| .pin_off = fetchunit_pin_off, |
| .unpin_off = fetchunit_unpin_off, |
| .is_pinned_off = fetchunit_is_pinned_off, |
| }; |
| |
| void _dpu_fl_init(struct dpu_soc *dpu, unsigned int id) |
| { |
| struct dpu_fetchunit *fu; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(fl_ids); i++) |
| if (fl_ids[i] == id) |
| break; |
| |
| if (WARN_ON(i == ARRAY_SIZE(fl_ids))) |
| return; |
| |
| fu = dpu->fl_priv[i]; |
| |
| fetchunit_baddr_autoupdate(fu, 0x0); |
| fetchunit_shden(fu, true); |
| fetchunit_shdldreq_sticky(fu, 0xFF); |
| fetchunit_disable_src_buf(fu); |
| |
| mutex_lock(&fu->mutex); |
| dpu_fu_write(fu, SETNUMBUFFERS(16) | SETBURSTLENGTH(16), |
| BURSTBUFFERMANAGEMENT); |
| mutex_unlock(&fu->mutex); |
| } |
| |
| int dpu_fl_init(struct dpu_soc *dpu, unsigned int id, |
| unsigned long pec_base, unsigned long base) |
| { |
| struct dpu_fetchlayer *fl; |
| struct dpu_fetchunit *fu; |
| int ret, i; |
| |
| fl = devm_kzalloc(dpu->dev, sizeof(*fl), GFP_KERNEL); |
| if (!fl) |
| return -ENOMEM; |
| |
| fu = &fl->fu; |
| dpu->fl_priv[id] = fu; |
| |
| fu->pec_base = devm_ioremap(dpu->dev, base, SZ_16); |
| if (!fu->pec_base) |
| return -ENOMEM; |
| |
| fu->base = devm_ioremap(dpu->dev, base, SZ_512); |
| if (!fu->base) |
| return -ENOMEM; |
| |
| fu->dpu = dpu; |
| fu->id = id; |
| fu->sub_id = 0; |
| fu->type = FU_T_FL; |
| fu->ops = &fl_ops; |
| fu->name = "fetchlayer"; |
| for (i = 0; i < ARRAY_SIZE(fl_ids); i++) { |
| if (fl_ids[i] == id) { |
| fl->shdlreq = fl_shdlreqs[i]; |
| break; |
| } |
| } |
| mutex_init(&fu->mutex); |
| |
| ret = fetchlayer_fetchtype(fu, &fl->fetchtype); |
| if (ret < 0) |
| return ret; |
| |
| _dpu_fl_init(dpu, id); |
| |
| return 0; |
| } |