2 * Samsung S5P G2D - 2D Graphics Accelerator Driver
4 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
5 * Kamil Debski, <k.debski@samsung.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the
10 * License, or (at your option) any later version
18 #define w(x, a) writel((x), d->regs + (a))
19 #define r(a) readl(d->regs + (a))
21 /* g2d_reset clears all g2d registers */
22 void g2d_reset(struct g2d_dev *d)
27 void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f)
32 w(f->stride & 0xFFFF, SRC_STRIDE_REG);
34 n = f->o_height & 0xFFF;
36 n |= f->o_width & 0xFFF;
37 w(n, SRC_LEFT_TOP_REG);
39 n = f->bottom & 0xFFF;
41 n |= f->right & 0xFFF;
42 w(n, SRC_RIGHT_BOTTOM_REG);
44 w(f->fmt->hw, SRC_COLOR_MODE_REG);
47 void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a)
49 w(a, SRC_BASE_ADDR_REG);
52 void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f)
57 w(f->stride & 0xFFFF, DST_STRIDE_REG);
59 n = f->o_height & 0xFFF;
61 n |= f->o_width & 0xFFF;
62 w(n, DST_LEFT_TOP_REG);
64 n = f->bottom & 0xFFF;
66 n |= f->right & 0xFFF;
67 w(n, DST_RIGHT_BOTTOM_REG);
69 w(f->fmt->hw, DST_COLOR_MODE_REG);
72 void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a)
74 w(a, DST_BASE_ADDR_REG);
77 void g2d_set_rop4(struct g2d_dev *d, u32 r)
82 void g2d_set_flip(struct g2d_dev *d, u32 r)
84 w(r, SRC_MSK_DIRECT_REG);
87 void g2d_set_v41_stretch(struct g2d_dev *d, struct g2d_frame *src,
88 struct g2d_frame *dst)
90 w(DEFAULT_SCALE_MODE, SRC_SCALE_CTRL_REG);
92 /* inversed scaling factor: src is numerator */
93 w((src->c_width << 16) / dst->c_width, SRC_XSCALE_REG);
94 w((src->c_height << 16) / dst->c_height, SRC_YSCALE_REG);
97 void g2d_set_cmd(struct g2d_dev *d, u32 c)
99 w(c, BITBLT_COMMAND_REG);
102 void g2d_start(struct g2d_dev *d)
105 if (d->variant->hw_rev == TYPE_G2D_3X)
106 w(0x7, CACHECTL_REG);
108 /* Enable interrupt */
110 /* Start G2D engine */
111 w(1, BITBLT_START_REG);
114 void g2d_clear_int(struct g2d_dev *d)