1 /* SPDX-License-Identifier: GPL-2.0+ */
6 * Stefano Babic, DENX Software Engineering, sbabic@denx.de
8 * Linux IPU driver for MX51:
10 * (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
13 #ifndef __ASM_ARCH_IPU_H__
14 #define __ASM_ARCH_IPU_H__
16 #include <linux/types.h>
17 #include <ipu_pixfmt.h>
19 #define IDMA_CHAN_INVALID 0xFF
20 #define HIGH_RESOLUTION_WIDTH 1024
25 /* Source clock this clk depends on */
27 /* Secondary clock to enable/disable with this clock */
28 struct clk *secondary;
29 /* Current clock rate */
31 /* Reference count of clock enable/disable */
33 /* Register bit position for clock's enable/disable control. */
35 /* Register address for clock's enable/disable control. */
39 * Function ptr to recalculate the clock's rate based on parent
42 void (*recalc) (struct clk *);
44 * Function ptr to set the clock to a new rate. The rate must match a
45 * supported rate returned from round_rate. Leave blank if clock is not
48 int (*set_rate) (struct clk *, unsigned long);
50 * Function ptr to round the requested clock rate to the nearest
51 * supported rate that is less than or equal to the requested rate.
53 unsigned long (*round_rate) (struct clk *, unsigned long);
55 * Function ptr to enable the clock. Leave blank if clock can not
58 int (*enable) (struct clk *);
60 * Function ptr to disable the clock. Leave blank if clock can not
63 void (*disable) (struct clk *);
64 /* Function ptr to set the parent clock of the clock. */
65 int (*set_parent) (struct clk *, struct clk *);
69 * Enumeration of Synchronous (Memory-less) panel types
77 * IPU Driver channels definitions.
78 * Note these are different from IDMA channels
81 #define _MAKE_CHAN(num, v_in, g_in, a_in, out) \
82 ((num << 24) | (v_in << 18) | (g_in << 12) | (a_in << 6) | out)
83 #define _MAKE_ALT_CHAN(ch) (ch | (IPU_MAX_CH << 24))
84 #define IPU_CHAN_ID(ch) (ch >> 24)
85 #define IPU_CHAN_ALT(ch) (ch & 0x02000000)
86 #define IPU_CHAN_ALPHA_IN_DMA(ch) ((uint32_t) (ch >> 6) & 0x3F)
87 #define IPU_CHAN_GRAPH_IN_DMA(ch) ((uint32_t) (ch >> 12) & 0x3F)
88 #define IPU_CHAN_VIDEO_IN_DMA(ch) ((uint32_t) (ch >> 18) & 0x3F)
89 #define IPU_CHAN_OUT_DMA(ch) ((uint32_t) (ch & 0x3F))
94 * Enumeration of IPU logical channels. An IPU logical channel is defined as a
95 * combination of an input (memory to IPU), output (IPU to memory), and/or
96 * secondary input IDMA channels and in some cases an Image Converter task.
97 * Some channels consist of only an input or output.
102 MEM_DC_SYNC = _MAKE_CHAN(7, 28, NO_DMA, NO_DMA, NO_DMA),
103 MEM_DC_ASYNC = _MAKE_CHAN(8, 41, NO_DMA, NO_DMA, NO_DMA),
104 MEM_BG_SYNC = _MAKE_CHAN(9, 23, NO_DMA, 51, NO_DMA),
105 MEM_FG_SYNC = _MAKE_CHAN(10, 27, NO_DMA, 31, NO_DMA),
107 MEM_BG_ASYNC0 = _MAKE_CHAN(11, 24, NO_DMA, 52, NO_DMA),
108 MEM_FG_ASYNC0 = _MAKE_CHAN(12, 29, NO_DMA, 33, NO_DMA),
109 MEM_BG_ASYNC1 = _MAKE_ALT_CHAN(MEM_BG_ASYNC0),
110 MEM_FG_ASYNC1 = _MAKE_ALT_CHAN(MEM_FG_ASYNC0),
112 DIRECT_ASYNC0 = _MAKE_CHAN(13, NO_DMA, NO_DMA, NO_DMA, NO_DMA),
113 DIRECT_ASYNC1 = _MAKE_CHAN(14, NO_DMA, NO_DMA, NO_DMA, NO_DMA),
118 * Enumeration of types of buffers for a logical channel.
121 IPU_OUTPUT_BUFFER = 0, /*< Buffer for output from IPU */
122 IPU_ALPHA_IN_BUFFER = 1, /*< Buffer for input to IPU */
123 IPU_GRAPH_IN_BUFFER = 2, /*< Buffer for input to IPU */
124 IPU_VIDEO_IN_BUFFER = 3, /*< Buffer for input to IPU */
125 IPU_INPUT_BUFFER = IPU_VIDEO_IN_BUFFER,
126 IPU_SEC_INPUT_BUFFER = IPU_GRAPH_IN_BUFFER,
129 #define IPU_PANEL_SERIAL 1
130 #define IPU_PANEL_PARALLEL 2
141 DMFC_HIGH_RESOLUTION_DC,
142 DMFC_HIGH_RESOLUTION_DP,
143 DMFC_HIGH_RESOLUTION_ONLY_DP,
148 * Union of initialization parameters for a logical channel.
153 unsigned char interlaced;
160 unsigned char interlaced;
161 uint32_t in_pixel_fmt;
162 uint32_t out_pixel_fmt;
163 unsigned char alpha_chan_en;
170 unsigned char interlaced;
171 uint32_t in_pixel_fmt;
172 uint32_t out_pixel_fmt;
173 unsigned char alpha_chan_en;
175 } ipu_channel_params_t;
178 * Enumeration of IPU interrupts.
181 IPU_IRQ_DP_SF_END = 448 + 3,
182 IPU_IRQ_DC_FC_1 = 448 + 9,
186 * Bitfield of Display Interface signal polarities.
189 unsigned datamask_en:1;
191 unsigned interlaced:1;
192 unsigned odd_field_first:1;
193 unsigned clksel_en:1;
194 unsigned clkidle_en:1;
195 unsigned data_pol:1; /* true = inverted */
196 unsigned clk_pol:1; /* true = rising edge */
197 unsigned enable_pol:1;
198 unsigned Hsync_pol:1; /* true = active high */
199 unsigned Vsync_pol:1;
200 } ipu_di_signal_cfg_t;
209 int32_t ipu_init_channel(ipu_channel_t channel, ipu_channel_params_t *params);
210 void ipu_uninit_channel(ipu_channel_t channel);
212 int32_t ipu_init_channel_buffer(ipu_channel_t channel, ipu_buffer_t type,
214 uint16_t width, uint16_t height,
216 dma_addr_t phyaddr_0, dma_addr_t phyaddr_1,
217 uint32_t u_offset, uint32_t v_offset);
219 int32_t ipu_update_channel_buffer(ipu_channel_t channel, ipu_buffer_t type,
220 uint32_t bufNum, dma_addr_t phyaddr);
222 int32_t ipu_is_channel_busy(ipu_channel_t channel);
223 void ipu_clear_buffer_ready(ipu_channel_t channel, ipu_buffer_t type,
225 int32_t ipu_enable_channel(ipu_channel_t channel);
226 int32_t ipu_disable_channel(ipu_channel_t channel);
228 int32_t ipu_init_sync_panel(int disp,
230 uint16_t width, uint16_t height,
232 uint16_t h_start_width, uint16_t h_sync_width,
233 uint16_t h_end_width, uint16_t v_start_width,
234 uint16_t v_sync_width, uint16_t v_end_width,
235 uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig);
237 int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
239 int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
242 uint32_t bytes_per_pixel(uint32_t fmt);
244 void clk_enable(struct clk *clk);
245 void clk_disable(struct clk *clk);
246 u32 clk_get_rate(struct clk *clk);
247 int clk_set_rate(struct clk *clk, unsigned long rate);
248 long clk_round_rate(struct clk *clk, unsigned long rate);
249 int clk_set_parent(struct clk *clk, struct clk *parent);
250 int clk_get_usecount(struct clk *clk);
251 struct clk *clk_get_parent(struct clk *clk);
253 void ipu_dump_registers(void);
255 bool ipu_clk_enabled(void);
257 void ipu_dmfc_init(int dmfc_type, int first);
258 void ipu_init_dc_mappings(void);
259 void ipu_dmfc_set_wait4eot(int dma_chan, int width);
260 void ipu_dc_init(int dc_chan, int di, unsigned char interlaced);
261 void ipu_dc_uninit(int dc_chan);
262 void ipu_dp_dc_enable(ipu_channel_t channel);
263 int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
264 uint32_t out_pixel_fmt);
265 void ipu_dp_uninit(ipu_channel_t channel);
266 void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap);
267 ipu_color_space_t format_to_colorspace(uint32_t fmt);