blackfin: fix copy_from_user()
[linux-2.6-block.git] / arch / blackfin / include / asm / gptimers.h
CommitLineData
780431e3 1/*
fee40119 2 * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
780431e3 3 *
fee40119 4 * Copyright (c) 2005-2008 Analog Devices Inc.
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5 * Copyright (C) 2005 John DeHority
6 * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
7 *
fee40119 8 * Licensed under the GPL-2.
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9 */
10
11#ifndef _BLACKFIN_TIMERS_H_
12#define _BLACKFIN_TIMERS_H_
13
14#include <linux/types.h>
15#include <asm/blackfin.h>
16
17/*
ffc89627 18 * BF51x/BF52x/BF537: 8 timers:
780431e3 19 */
269647dc 20#if defined(CONFIG_BF51x) || defined(CONFIG_BF52x) || defined(BF537_FAMILY)
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21# define MAX_BLACKFIN_GPTIMERS 8
22# define TIMER0_GROUP_REG TIMER_ENABLE
23#endif
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24/*
25 * BF54x: 11 timers (BF542: 8 timers):
26 */
269647dc 27#if defined(CONFIG_BF54x)
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28# ifdef CONFIG_BF542
29# define MAX_BLACKFIN_GPTIMERS 8
30# else
31# define MAX_BLACKFIN_GPTIMERS 11
32# define TIMER8_GROUP_REG TIMER_ENABLE1
c8d5ea8c 33# define TIMER_GROUP2 1
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34# endif
35# define TIMER0_GROUP_REG TIMER_ENABLE0
36#endif
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37/*
38 * BF561: 12 timers:
39 */
40#if defined(CONFIG_BF561)
41# define MAX_BLACKFIN_GPTIMERS 12
42# define TIMER0_GROUP_REG TMRS8_ENABLE
43# define TIMER8_GROUP_REG TMRS4_ENABLE
c8d5ea8c 44# define TIMER_GROUP2 1
780431e3 45#endif
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46/*
47 * BF609: 8 timers:
48 */
49#if defined(CONFIG_BF60x)
50# define MAX_BLACKFIN_GPTIMERS 8
51# define TIMER0_GROUP_REG TIMER_RUN
52#endif
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53/*
54 * All others: 3 timers:
55 */
c8d5ea8c 56#define TIMER_GROUP1 0
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57#if !defined(MAX_BLACKFIN_GPTIMERS)
58# define MAX_BLACKFIN_GPTIMERS 3
59# define TIMER0_GROUP_REG TIMER_ENABLE
60#endif
61
62#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
63#define BFIN_TIMER_OCTET(x) ((x) >> 3)
64
65/* used in masks for timer_enable() and timer_disable() */
66#define TIMER0bit 0x0001 /* 0001b */
67#define TIMER1bit 0x0002 /* 0010b */
68#define TIMER2bit 0x0004 /* 0100b */
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69#define TIMER3bit 0x0008
70#define TIMER4bit 0x0010
71#define TIMER5bit 0x0020
72#define TIMER6bit 0x0040
73#define TIMER7bit 0x0080
74#define TIMER8bit 0x0100
75#define TIMER9bit 0x0200
76#define TIMER10bit 0x0400
77#define TIMER11bit 0x0800
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78
79#define TIMER0_id 0
80#define TIMER1_id 1
81#define TIMER2_id 2
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82#define TIMER3_id 3
83#define TIMER4_id 4
84#define TIMER5_id 5
85#define TIMER6_id 6
86#define TIMER7_id 7
87#define TIMER8_id 8
88#define TIMER9_id 9
89#define TIMER10_id 10
90#define TIMER11_id 11
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91
92/* associated timers for ppi framesync: */
93
94#if defined(CONFIG_BF561)
95# define FS0_1_TIMER_ID TIMER8_id
96# define FS0_2_TIMER_ID TIMER9_id
97# define FS1_1_TIMER_ID TIMER10_id
98# define FS1_2_TIMER_ID TIMER11_id
99# define FS0_1_TIMER_BIT TIMER8bit
100# define FS0_2_TIMER_BIT TIMER9bit
101# define FS1_1_TIMER_BIT TIMER10bit
102# define FS1_2_TIMER_BIT TIMER11bit
103# undef FS1_TIMER_ID
104# undef FS2_TIMER_ID
105# undef FS1_TIMER_BIT
106# undef FS2_TIMER_BIT
107#else
108# define FS1_TIMER_ID TIMER0_id
109# define FS2_TIMER_ID TIMER1_id
110# define FS1_TIMER_BIT TIMER0bit
111# define FS2_TIMER_BIT TIMER1bit
112#endif
113
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114#ifdef CONFIG_BF60x
115/*
116 * Timer Configuration Register Bits
117 */
118#define TIMER_EMU_RUN 0x8000
119#define TIMER_BPER_EN 0x4000
120#define TIMER_BWID_EN 0x2000
121#define TIMER_BDLY_EN 0x1000
122#define TIMER_OUT_DIS 0x0800
123#define TIMER_TIN_SEL 0x0400
124#define TIMER_CLK_SEL 0x0300
125#define TIMER_CLK_SCLK 0x0000
126#define TIMER_CLK_ALT_CLK0 0x0100
127#define TIMER_CLK_ALT_CLK1 0x0300
128#define TIMER_PULSE_HI 0x0080
129#define TIMER_SLAVE_TRIG 0x0040
130#define TIMER_IRQ_MODE 0x0030
131#define TIMER_IRQ_ACT_EDGE 0x0000
132#define TIMER_IRQ_DLY 0x0010
133#define TIMER_IRQ_WID_DLY 0x0020
134#define TIMER_IRQ_PER 0x0030
135#define TIMER_MODE 0x000f
136#define TIMER_MODE_WDOG_P 0x0008
137#define TIMER_MODE_WDOG_W 0x0009
138#define TIMER_MODE_PWM_CONT 0x000c
139#define TIMER_MODE_PWM 0x000d
140#define TIMER_MODE_WDTH 0x000a
141#define TIMER_MODE_WDTH_D 0x000b
142#define TIMER_MODE_EXT_CLK 0x000e
143#define TIMER_MODE_PININT 0x000f
144
145/*
146 * Timer Status Register Bits
147 */
148#define TIMER_STATUS_TIMIL0 0x0001
149#define TIMER_STATUS_TIMIL1 0x0002
150#define TIMER_STATUS_TIMIL2 0x0004
151#define TIMER_STATUS_TIMIL3 0x0008
152#define TIMER_STATUS_TIMIL4 0x0010
153#define TIMER_STATUS_TIMIL5 0x0020
154#define TIMER_STATUS_TIMIL6 0x0040
155#define TIMER_STATUS_TIMIL7 0x0080
156
157#define TIMER_STATUS_TOVF0 0x0001 /* timer 0 overflow error */
158#define TIMER_STATUS_TOVF1 0x0002
159#define TIMER_STATUS_TOVF2 0x0004
160#define TIMER_STATUS_TOVF3 0x0008
161#define TIMER_STATUS_TOVF4 0x0010
162#define TIMER_STATUS_TOVF5 0x0020
163#define TIMER_STATUS_TOVF6 0x0040
164#define TIMER_STATUS_TOVF7 0x0080
165
166/*
167 * Timer Slave Enable Status : write 1 to clear
168 */
169#define TIMER_STATUS_TRUN0 0x0001
170#define TIMER_STATUS_TRUN1 0x0002
171#define TIMER_STATUS_TRUN2 0x0004
172#define TIMER_STATUS_TRUN3 0x0008
173#define TIMER_STATUS_TRUN4 0x0010
174#define TIMER_STATUS_TRUN5 0x0020
175#define TIMER_STATUS_TRUN6 0x0040
176#define TIMER_STATUS_TRUN7 0x0080
177
178#else
179
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180/*
181 * Timer Configuration Register Bits
182 */
183#define TIMER_ERR 0xC000
184#define TIMER_ERR_OVFL 0x4000
185#define TIMER_ERR_PROG_PER 0x8000
186#define TIMER_ERR_PROG_PW 0xC000
187#define TIMER_EMU_RUN 0x0200
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188#define TIMER_TOGGLE_HI 0x0100
189#define TIMER_CLK_SEL 0x0080
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190#define TIMER_OUT_DIS 0x0040
191#define TIMER_TIN_SEL 0x0020
192#define TIMER_IRQ_ENA 0x0010
193#define TIMER_PERIOD_CNT 0x0008
194#define TIMER_PULSE_HI 0x0004
195#define TIMER_MODE 0x0003
196#define TIMER_MODE_PWM 0x0001
197#define TIMER_MODE_WDTH 0x0002
198#define TIMER_MODE_EXT_CLK 0x0003
199
200/*
201 * Timer Status Register Bits
202 */
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203#define TIMER_STATUS_TIMIL0 0x0001
204#define TIMER_STATUS_TIMIL1 0x0002
205#define TIMER_STATUS_TIMIL2 0x0004
206#define TIMER_STATUS_TIMIL3 0x00000008
207#define TIMER_STATUS_TIMIL4 0x00010000
208#define TIMER_STATUS_TIMIL5 0x00020000
209#define TIMER_STATUS_TIMIL6 0x00040000
210#define TIMER_STATUS_TIMIL7 0x00080000
211#define TIMER_STATUS_TIMIL8 0x0001
212#define TIMER_STATUS_TIMIL9 0x0002
213#define TIMER_STATUS_TIMIL10 0x0004
214#define TIMER_STATUS_TIMIL11 0x0008
215
216#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */
217#define TIMER_STATUS_TOVF1 0x0020
218#define TIMER_STATUS_TOVF2 0x0040
219#define TIMER_STATUS_TOVF3 0x00000080
220#define TIMER_STATUS_TOVF4 0x00100000
221#define TIMER_STATUS_TOVF5 0x00200000
222#define TIMER_STATUS_TOVF6 0x00400000
223#define TIMER_STATUS_TOVF7 0x00800000
224#define TIMER_STATUS_TOVF8 0x0010
225#define TIMER_STATUS_TOVF9 0x0020
226#define TIMER_STATUS_TOVF10 0x0040
227#define TIMER_STATUS_TOVF11 0x0080
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228
229/*
230 * Timer Slave Enable Status : write 1 to clear
231 */
232#define TIMER_STATUS_TRUN0 0x1000
233#define TIMER_STATUS_TRUN1 0x2000
234#define TIMER_STATUS_TRUN2 0x4000
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235#define TIMER_STATUS_TRUN3 0x00008000
236#define TIMER_STATUS_TRUN4 0x10000000
237#define TIMER_STATUS_TRUN5 0x20000000
238#define TIMER_STATUS_TRUN6 0x40000000
239#define TIMER_STATUS_TRUN7 0x80000000
240#define TIMER_STATUS_TRUN 0xF000F000
241#define TIMER_STATUS_TRUN8 0x1000
242#define TIMER_STATUS_TRUN9 0x2000
243#define TIMER_STATUS_TRUN10 0x4000
244#define TIMER_STATUS_TRUN11 0x8000
780431e3 245
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246#endif
247
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248/* The actual gptimer API */
249
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250void set_gptimer_pwidth(unsigned int timer_id, uint32_t width);
251uint32_t get_gptimer_pwidth(unsigned int timer_id);
252void set_gptimer_period(unsigned int timer_id, uint32_t period);
253uint32_t get_gptimer_period(unsigned int timer_id);
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254#ifdef CONFIG_BF60x
255void set_gptimer_delay(unsigned int timer_id, uint32_t delay);
256uint32_t get_gptimer_delay(unsigned int timer_id);
257#endif
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258uint32_t get_gptimer_count(unsigned int timer_id);
259int get_gptimer_intr(unsigned int timer_id);
260void clear_gptimer_intr(unsigned int timer_id);
261int get_gptimer_over(unsigned int timer_id);
262void clear_gptimer_over(unsigned int timer_id);
263void set_gptimer_config(unsigned int timer_id, uint16_t config);
264uint16_t get_gptimer_config(unsigned int timer_id);
265int get_gptimer_run(unsigned int timer_id);
266void set_gptimer_pulse_hi(unsigned int timer_id);
267void clear_gptimer_pulse_hi(unsigned int timer_id);
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268void enable_gptimers(uint16_t mask);
269void disable_gptimers(uint16_t mask);
270void disable_gptimers_sync(uint16_t mask);
271uint16_t get_enabled_gptimers(void);
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272uint32_t get_gptimer_status(unsigned int group);
273void set_gptimer_status(unsigned int group, uint32_t value);
780431e3 274
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275static inline void enable_gptimer(unsigned int timer_id)
276{
277 enable_gptimers(1 << timer_id);
278}
279
280static inline void disable_gptimer(unsigned int timer_id)
281{
282 disable_gptimers(1 << timer_id);
283}
284
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285/*
286 * All Blackfin system MMRs are padded to 32bits even if the register
287 * itself is only 16bits. So use a helper macro to streamline this.
288 */
289#define __BFP(m) u16 m; u16 __pad_##m
290
291/*
292 * bfin timer registers layout
293 */
294struct bfin_gptimer_regs {
295 __BFP(config);
296 u32 counter;
297 u32 period;
298 u32 width;
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299#ifdef CONFIG_BF60x
300 u32 delay;
301#endif
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302};
303
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304/*
305 * bfin group timer registers layout
306 */
2879bb30 307#ifndef CONFIG_BF60x
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308struct bfin_gptimer_group_regs {
309 __BFP(enable);
310 __BFP(disable);
311 u32 status;
312};
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313#else
314struct bfin_gptimer_group_regs {
315 __BFP(run);
316 __BFP(enable);
317 __BFP(disable);
318 __BFP(stop_cfg);
319 __BFP(stop_cfg_set);
320 __BFP(stop_cfg_clr);
321 __BFP(data_imsk);
322 __BFP(stat_imsk);
323 __BFP(tr_msk);
324 __BFP(tr_ie);
325 __BFP(data_ilat);
326 __BFP(stat_ilat);
327 __BFP(err_status);
328 __BFP(bcast_per);
329 __BFP(bcast_wid);
330 __BFP(bcast_dly);
331
332};
333#endif
7595ac07 334
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335#undef __BFP
336
780431e3 337#endif