fb: fix au1100fb bitrot.
[sitara-epos/sitara-epos-kernel.git] / drivers / video / au1100fb.h
1 /*
2  * BRIEF MODULE DESCRIPTION
3  *      Hardware definitions for the Au1100 LCD controller
4  *
5  * Copyright 2002 MontaVista Software
6  * Copyright 2002 Alchemy Semiconductor
7  * Author:      Alchemy Semiconductor, MontaVista Software
8  *
9  *  This program is free software; you can redistribute  it and/or modify it
10  *  under  the terms of  the GNU General  Public License as published by the
11  *  Free Software Foundation;  either version 2 of the  License, or (at your
12  *  option) any later version.
13  *
14  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
15  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
16  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
17  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
18  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
20  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
21  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
22  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  *  You should have received a copy of the  GNU General Public License along
26  *  with this program; if not, write  to the Free Software Foundation, Inc.,
27  *  675 Mass Ave, Cambridge, MA 02139, USA.
28  */
30 #ifndef _AU1100LCD_H
31 #define _AU1100LCD_H
33 #include <asm/mach-au1x00/au1000.h>
35 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
36 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
37 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
39 #if DEBUG
40 #define print_dbg(f, arg...) printk(__FILE__ ": " f "\n", ## arg)
41 #else
42 #define print_dbg(f, arg...) do {} while (0)
43 #endif
45 #if defined(__BIG_ENDIAN)
46 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
47 #else
48 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
49 #endif
50 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
52 /********************************************************************/
54 /* LCD controller restrictions */
55 #define AU1100_LCD_MAX_XRES     800
56 #define AU1100_LCD_MAX_YRES     600
57 #define AU1100_LCD_MAX_BPP      16
58 #define AU1100_LCD_MAX_CLK      48000000
59 #define AU1100_LCD_NBR_PALETTE_ENTRIES 256
61 /* Default number of visible screen buffer to allocate */
62 #define AU1100FB_NBR_VIDEO_BUFFERS 4
64 /********************************************************************/
66 struct au1100fb_panel
67 {
68         const char name[25];            /* Full name <vendor>_<model> */
70         u32     control_base;           /* Mode-independent control values */
71         u32     clkcontrol_base;        /* Panel pixclock preferences */
73         u32     horztiming;
74         u32     verttiming;
76         u32     xres;           /* Maximum horizontal resolution */
77         u32     yres;           /* Maximum vertical resolution */
78         u32     bpp;            /* Maximum depth supported */
79 };
81 struct au1100fb_regs
82 {
83         u32  lcd_control;
84         u32  lcd_intstatus;
85         u32  lcd_intenable;
86         u32  lcd_horztiming;
87         u32  lcd_verttiming;
88         u32  lcd_clkcontrol;
89         u32  lcd_dmaaddr0;
90         u32  lcd_dmaaddr1;
91         u32  lcd_words;
92         u32  lcd_pwmdiv;
93         u32  lcd_pwmhi;
94         u32  reserved[(0x0400-0x002C)/4];
95         u32  lcd_pallettebase[256];
96 };
98 struct au1100fb_device {
100         struct fb_info info;                    /* FB driver info record */
102         struct au1100fb_panel   *panel;         /* Panel connected to this device */
104         struct au1100fb_regs*   regs;           /* Registers memory map */
105         size_t                  regs_len;
106         unsigned int            regs_phys;
108         unsigned char*          fb_mem;         /* FrameBuffer memory map */
109         size_t                  fb_len;
110         dma_addr_t              fb_phys;
111         int                     panel_idx;
112 };
114 /********************************************************************/
116 #define LCD_CONTROL                (AU1100_LCD_BASE + 0x0)
117   #define LCD_CONTROL_SBB_BIT      21
118   #define LCD_CONTROL_SBB_MASK     (0x3 << LCD_CONTROL_SBB_BIT)
119     #define LCD_CONTROL_SBB_1        (0 << LCD_CONTROL_SBB_BIT)
120     #define LCD_CONTROL_SBB_2        (1 << LCD_CONTROL_SBB_BIT)
121     #define LCD_CONTROL_SBB_3        (2 << LCD_CONTROL_SBB_BIT)
122     #define LCD_CONTROL_SBB_4        (3 << LCD_CONTROL_SBB_BIT)
123   #define LCD_CONTROL_SBPPF_BIT    18
124   #define LCD_CONTROL_SBPPF_MASK   (0x7 << LCD_CONTROL_SBPPF_BIT)
125     #define LCD_CONTROL_SBPPF_655    (0 << LCD_CONTROL_SBPPF_BIT)
126     #define LCD_CONTROL_SBPPF_565    (1 << LCD_CONTROL_SBPPF_BIT)
127     #define LCD_CONTROL_SBPPF_556    (2 << LCD_CONTROL_SBPPF_BIT)
128     #define LCD_CONTROL_SBPPF_1555   (3 << LCD_CONTROL_SBPPF_BIT)
129     #define LCD_CONTROL_SBPPF_5551   (4 << LCD_CONTROL_SBPPF_BIT)
130   #define LCD_CONTROL_WP           (1<<17)
131   #define LCD_CONTROL_WD           (1<<16)
132   #define LCD_CONTROL_C            (1<<15)
133   #define LCD_CONTROL_SM_BIT       13
134   #define LCD_CONTROL_SM_MASK      (0x3 << LCD_CONTROL_SM_BIT)
135     #define LCD_CONTROL_SM_0         (0 << LCD_CONTROL_SM_BIT)
136     #define LCD_CONTROL_SM_90        (1 << LCD_CONTROL_SM_BIT)
137     #define LCD_CONTROL_SM_180       (2 << LCD_CONTROL_SM_BIT)
138     #define LCD_CONTROL_SM_270       (3 << LCD_CONTROL_SM_BIT)
139   #define LCD_CONTROL_DB           (1<<12)
140   #define LCD_CONTROL_CCO          (1<<11)
141   #define LCD_CONTROL_DP           (1<<10)
142   #define LCD_CONTROL_PO_BIT       8
143   #define LCD_CONTROL_PO_MASK      (0x3 << LCD_CONTROL_PO_BIT)
144     #define LCD_CONTROL_PO_00        (0 << LCD_CONTROL_PO_BIT)
145     #define LCD_CONTROL_PO_01        (1 << LCD_CONTROL_PO_BIT)
146     #define LCD_CONTROL_PO_10        (2 << LCD_CONTROL_PO_BIT)
147     #define LCD_CONTROL_PO_11        (3 << LCD_CONTROL_PO_BIT)
148   #define LCD_CONTROL_MPI          (1<<7)
149   #define LCD_CONTROL_PT           (1<<6)
150   #define LCD_CONTROL_PC           (1<<5)
151   #define LCD_CONTROL_BPP_BIT      1
152   #define LCD_CONTROL_BPP_MASK     (0x7 << LCD_CONTROL_BPP_BIT)
153     #define LCD_CONTROL_BPP_1        (0 << LCD_CONTROL_BPP_BIT)
154     #define LCD_CONTROL_BPP_2        (1 << LCD_CONTROL_BPP_BIT)
155     #define LCD_CONTROL_BPP_4        (2 << LCD_CONTROL_BPP_BIT)
156     #define LCD_CONTROL_BPP_8        (3 << LCD_CONTROL_BPP_BIT)
157     #define LCD_CONTROL_BPP_12       (4 << LCD_CONTROL_BPP_BIT)
158     #define LCD_CONTROL_BPP_16       (5 << LCD_CONTROL_BPP_BIT)
159   #define LCD_CONTROL_GO           (1<<0)
161 #define LCD_INTSTATUS              (AU1100_LCD_BASE + 0x4)
162 #define LCD_INTENABLE              (AU1100_LCD_BASE + 0x8)
163   #define LCD_INT_SD               (1<<7)
164   #define LCD_INT_OF               (1<<6)
165   #define LCD_INT_UF               (1<<5)
166   #define LCD_INT_SA               (1<<3)
167   #define LCD_INT_SS               (1<<2)
168   #define LCD_INT_S1               (1<<1)
169   #define LCD_INT_S0               (1<<0)
171 #define LCD_HORZTIMING             (AU1100_LCD_BASE + 0xC)
172   #define LCD_HORZTIMING_HN2_BIT   24
173   #define LCD_HORZTIMING_HN2_MASK  (0xFF << LCD_HORZTIMING_HN2_BIT)
174   #define LCD_HORZTIMING_HN2_N(N)  ((((N)-1) << LCD_HORZTIMING_HN2_BIT) & LCD_HORZTIMING_HN2_MASK)
175   #define LCD_HORZTIMING_HN1_BIT   16
176   #define LCD_HORZTIMING_HN1_MASK  (0xFF << LCD_HORZTIMING_HN1_BIT)
177   #define LCD_HORZTIMING_HN1_N(N)  ((((N)-1) << LCD_HORZTIMING_HN1_BIT) & LCD_HORZTIMING_HN1_MASK)
178   #define LCD_HORZTIMING_HPW_BIT   10
179   #define LCD_HORZTIMING_HPW_MASK  (0x3F << LCD_HORZTIMING_HPW_BIT)
180   #define LCD_HORZTIMING_HPW_N(N)  ((((N)-1) << LCD_HORZTIMING_HPW_BIT) & LCD_HORZTIMING_HPW_MASK)
181   #define LCD_HORZTIMING_PPL_BIT   0
182   #define LCD_HORZTIMING_PPL_MASK  (0x3FF << LCD_HORZTIMING_PPL_BIT)
183   #define LCD_HORZTIMING_PPL_N(N)  ((((N)-1) << LCD_HORZTIMING_PPL_BIT) & LCD_HORZTIMING_PPL_MASK)
185 #define LCD_VERTTIMING             (AU1100_LCD_BASE + 0x10)
186   #define LCD_VERTTIMING_VN2_BIT   24
187   #define LCD_VERTTIMING_VN2_MASK  (0xFF << LCD_VERTTIMING_VN2_BIT)
188   #define LCD_VERTTIMING_VN2_N(N)  ((((N)-1) << LCD_VERTTIMING_VN2_BIT) & LCD_VERTTIMING_VN2_MASK)
189   #define LCD_VERTTIMING_VN1_BIT   16
190   #define LCD_VERTTIMING_VN1_MASK  (0xFF << LCD_VERTTIMING_VN1_BIT)
191   #define LCD_VERTTIMING_VN1_N(N)  ((((N)-1) << LCD_VERTTIMING_VN1_BIT) & LCD_VERTTIMING_VN1_MASK)
192   #define LCD_VERTTIMING_VPW_BIT   10
193   #define LCD_VERTTIMING_VPW_MASK  (0x3F << LCD_VERTTIMING_VPW_BIT)
194   #define LCD_VERTTIMING_VPW_N(N)  ((((N)-1) << LCD_VERTTIMING_VPW_BIT) & LCD_VERTTIMING_VPW_MASK)
195   #define LCD_VERTTIMING_LPP_BIT   0
196   #define LCD_VERTTIMING_LPP_MASK  (0x3FF << LCD_VERTTIMING_LPP_BIT)
197   #define LCD_VERTTIMING_LPP_N(N)  ((((N)-1) << LCD_VERTTIMING_LPP_BIT) & LCD_VERTTIMING_LPP_MASK)
199 #define LCD_CLKCONTROL             (AU1100_LCD_BASE + 0x14)
200   #define LCD_CLKCONTROL_IB        (1<<18)
201   #define LCD_CLKCONTROL_IC        (1<<17)
202   #define LCD_CLKCONTROL_IH        (1<<16)
203   #define LCD_CLKCONTROL_IV        (1<<15)
204   #define LCD_CLKCONTROL_BF_BIT    10
205   #define LCD_CLKCONTROL_BF_MASK   (0x1F << LCD_CLKCONTROL_BF_BIT)
206   #define LCD_CLKCONTROL_BF_N(N)   ((((N)-1) << LCD_CLKCONTROL_BF_BIT) & LCD_CLKCONTROL_BF_MASK)
207   #define LCD_CLKCONTROL_PCD_BIT   0
208   #define LCD_CLKCONTROL_PCD_MASK  (0x3FF << LCD_CLKCONTROL_PCD_BIT)
209   #define LCD_CLKCONTROL_PCD_N(N)  (((N) << LCD_CLKCONTROL_PCD_BIT) & LCD_CLKCONTROL_PCD_MASK)
211 #define LCD_DMAADDR0               (AU1100_LCD_BASE + 0x18)
212 #define LCD_DMAADDR1               (AU1100_LCD_BASE + 0x1C)
213   #define LCD_DMA_SA_BIT           5
214   #define LCD_DMA_SA_MASK          (0x7FFFFFF << LCD_DMA_SA_BIT)
215   #define LCD_DMA_SA_N(N)          ((N) & LCD_DMA_SA_MASK)
217 #define LCD_WORDS                  (AU1100_LCD_BASE + 0x20)
218   #define LCD_WRD_WRDS_BIT         0
219   #define LCD_WRD_WRDS_MASK        (0xFFFFFFFF << LCD_WRD_WRDS_BIT)
220   #define LCD_WRD_WRDS_N(N)        ((((N)-1) << LCD_WRD_WRDS_BIT) & LCD_WRD_WRDS_MASK)
222 #define LCD_PWMDIV                 (AU1100_LCD_BASE + 0x24)
223   #define LCD_PWMDIV_EN            (1<<12)
224   #define LCD_PWMDIV_PWMDIV_BIT    0
225   #define LCD_PWMDIV_PWMDIV_MASK   (0xFFF << LCD_PWMDIV_PWMDIV_BIT)
226   #define LCD_PWMDIV_PWMDIV_N(N)   ((((N)-1) << LCD_PWMDIV_PWMDIV_BIT) & LCD_PWMDIV_PWMDIV_MASK)
228 #define LCD_PWMHI                  (AU1100_LCD_BASE + 0x28)
229   #define LCD_PWMHI_PWMHI1_BIT     12
230   #define LCD_PWMHI_PWMHI1_MASK    (0xFFF << LCD_PWMHI_PWMHI1_BIT)
231   #define LCD_PWMHI_PWMHI1_N(N)    (((N) << LCD_PWMHI_PWMHI1_BIT) & LCD_PWMHI_PWMHI1_MASK)
232   #define LCD_PWMHI_PWMHI0_BIT     0
233   #define LCD_PWMHI_PWMHI0_MASK    (0xFFF << LCD_PWMHI_PWMHI0_BIT)
234   #define LCD_PWMHI_PWMHI0_N(N)    (((N) << LCD_PWMHI_PWMHI0_BIT) & LCD_PWMHI_PWMHI0_MASK)
236 #define LCD_PALLETTEBASE                (AU1100_LCD_BASE + 0x400)
237   #define LCD_PALLETTE_MONO_MI_BIT      0
238   #define LCD_PALLETTE_MONO_MI_MASK     (0xF << LCD_PALLETTE_MONO_MI_BIT)
239   #define LCD_PALLETTE_MONO_MI_N(N)     (((N)<< LCD_PALLETTE_MONO_MI_BIT) & LCD_PALLETTE_MONO_MI_MASK)
241   #define LCD_PALLETTE_COLOR_RI_BIT     8
242   #define LCD_PALLETTE_COLOR_RI_MASK    (0xF << LCD_PALLETTE_COLOR_RI_BIT)
243   #define LCD_PALLETTE_COLOR_RI_N(N)    (((N)<< LCD_PALLETTE_COLOR_RI_BIT) & LCD_PALLETTE_COLOR_RI_MASK)
244   #define LCD_PALLETTE_COLOR_GI_BIT     4
245   #define LCD_PALLETTE_COLOR_GI_MASK    (0xF << LCD_PALLETTE_COLOR_GI_BIT)
246   #define LCD_PALLETTE_COLOR_GI_N(N)    (((N)<< LCD_PALLETTE_COLOR_GI_BIT) & LCD_PALLETTE_COLOR_GI_MASK)
247   #define LCD_PALLETTE_COLOR_BI_BIT     0
248   #define LCD_PALLETTE_COLOR_BI_MASK    (0xF << LCD_PALLETTE_COLOR_BI_BIT)
249   #define LCD_PALLETTE_COLOR_BI_N(N)    (((N)<< LCD_PALLETTE_COLOR_BI_BIT) & LCD_PALLETTE_COLOR_BI_MASK)
251   #define LCD_PALLETTE_TFT_DC_BIT       0
252   #define LCD_PALLETTE_TFT_DC_MASK      (0xFFFF << LCD_PALLETTE_TFT_DC_BIT)
253   #define LCD_PALLETTE_TFT_DC_N(N)      (((N)<< LCD_PALLETTE_TFT_DC_BIT) & LCD_PALLETTE_TFT_DC_MASK)
255 /********************************************************************/
257 /* List of panels known to work with the AU1100 LCD controller.
258  * To add a new panel, enter the same specifications as the
259  * Generic_TFT one, and MAKE SURE that it doesn't conflicts
260  * with the controller restrictions. Restrictions are:
261  *
262  * STN color panels: max_bpp <= 12
263  * STN mono panels: max_bpp <= 4
264  * TFT panels: max_bpp <= 16
265  * max_xres <= 800
266  * max_yres <= 600
267  */
268 static struct au1100fb_panel known_lcd_panels[] =
270         /* 800x600x16bpp CRT */
271         [0] = {
272                 .name = "CRT_800x600_16",
273                 .xres = 800,
274                 .yres = 600,
275                 .bpp = 16,
276                 .control_base = 0x0004886A |
277                         LCD_CONTROL_DEFAULT_PO | LCD_CONTROL_DEFAULT_SBPPF |
278                         LCD_CONTROL_BPP_16 | LCD_CONTROL_SBB_4,
279                 .clkcontrol_base = 0x00020000,
280                 .horztiming = 0x005aff1f,
281                 .verttiming = 0x16000e57,
282         },
283         /* just the standard LCD */
284         [1] = {
285                 .name = "WWPC LCD",
286                 .xres = 240,
287                 .yres = 320,
288                 .bpp = 16,
289                 .control_base = 0x0006806A,
290                 .horztiming = 0x0A1010EF,
291                 .verttiming = 0x0301013F,
292                 .clkcontrol_base = 0x00018001,
293         },
294         /* Sharp 320x240 TFT panel */
295         [2] = {
296                 .name = "Sharp_LQ038Q5DR01",
297                 .xres = 320,
298                 .yres = 240,
299                 .bpp = 16,
300                 .control_base =
301                 ( LCD_CONTROL_SBPPF_565
302                 | LCD_CONTROL_C
303                 | LCD_CONTROL_SM_0
304                         | LCD_CONTROL_DEFAULT_PO
305                 | LCD_CONTROL_PT
306                 | LCD_CONTROL_PC
307                 | LCD_CONTROL_BPP_16 ),
308                 .horztiming =
309                 ( LCD_HORZTIMING_HN2_N(8)
310                 | LCD_HORZTIMING_HN1_N(60)
311                 | LCD_HORZTIMING_HPW_N(12)
312                 | LCD_HORZTIMING_PPL_N(320) ),
313                 .verttiming =
314                 ( LCD_VERTTIMING_VN2_N(5)
315                 | LCD_VERTTIMING_VN1_N(17)
316                 | LCD_VERTTIMING_VPW_N(1)
317                 | LCD_VERTTIMING_LPP_N(240) ),
318                 .clkcontrol_base = LCD_CLKCONTROL_PCD_N(1),
319         },
321         /* Hitachi SP14Q005 and possibly others */
322         [3] = {
323                 .name = "Hitachi_SP14Qxxx",
324                 .xres = 320,
325                 .yres = 240,
326                 .bpp = 4,
327                 .control_base =
328                         ( LCD_CONTROL_C
329                         | LCD_CONTROL_BPP_4 ),
330                 .horztiming =
331                         ( LCD_HORZTIMING_HN2_N(1)
332                         | LCD_HORZTIMING_HN1_N(1)
333                         | LCD_HORZTIMING_HPW_N(1)
334                         | LCD_HORZTIMING_PPL_N(320) ),
335                 .verttiming =
336                         ( LCD_VERTTIMING_VN2_N(1)
337                         | LCD_VERTTIMING_VN1_N(1)
338                         | LCD_VERTTIMING_VPW_N(1)
339                         | LCD_VERTTIMING_LPP_N(240) ),
340                 .clkcontrol_base = LCD_CLKCONTROL_PCD_N(4),
341         },
343         /* Generic 640x480 TFT panel */
344         [4] = {
345                 .name = "TFT_640x480_16",
346                 .xres = 640,
347                 .yres = 480,
348                 .bpp = 16,
349                 .control_base = 0x004806a | LCD_CONTROL_DEFAULT_PO,
350                 .horztiming = 0x3434d67f,
351                 .verttiming = 0x0e0e39df,
352                 .clkcontrol_base = LCD_CLKCONTROL_PCD_N(1),
353         },
355          /* Pb1100 LCDB 640x480 PrimeView TFT panel */
356         [5] = {
357                 .name = "PrimeView_640x480_16",
358                 .xres = 640,
359                 .yres = 480,
360                 .bpp = 16,
361                 .control_base = 0x0004886a | LCD_CONTROL_DEFAULT_PO,
362                 .horztiming = 0x0e4bfe7f,
363                 .verttiming = 0x210805df,
364                 .clkcontrol_base = 0x00038001,
365         },
366 };
368 /********************************************************************/
370 /* Inline helpers */
372 #define panel_is_dual(panel)  (panel->control_base & LCD_CONTROL_DP)
373 #define panel_is_active(panel)(panel->control_base & LCD_CONTROL_PT)
374 #define panel_is_color(panel) (panel->control_base & LCD_CONTROL_PC)
375 #define panel_swap_rgb(panel) (panel->control_base & LCD_CONTROL_CCO)
377 #endif /* _AU1100LCD_H */