source: SVN/rincon/u-boot/board/trab/tsc2000.h @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

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Signed-off-by: Tim Harvey <tharvey@…>

File size: 5.1 KB
Line 
1/*
2 * Functions to access the TSC2000 controller on TRAB board (used for scanning
3 * thermo sensors)
4 *
5 * Copyright (C) 2003 Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
6 *
7 * Copyright (C) 2002 DENX Software Engineering, Wolfgang Denk, wd@denx.de
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
26 */
27
28#ifndef _TSC2000_H_
29#define _TSC2000_H_
30
31/* temperature channel multiplexer definitions */
32#define CON_MUX0                (gpio->PCCON = (gpio->PCCON & 0x0FFFFFCFF) | 0x00000100)
33#define CLR_MUX0                (gpio->PCDAT &= 0x0FFEF)
34#define SET_MUX0                (gpio->PCDAT |= 0x00010)
35
36#define CON_MUX1                (gpio->PCCON = (gpio->PCCON & 0x0FFFFF3FF) | 0x00000400)
37#define CLR_MUX1                (gpio->PCDAT &= 0x0FFDF)
38#define SET_MUX1                (gpio->PCDAT |= 0x00020)
39
40#define CON_MUX1_ENABLE         (gpio->PCCON = (gpio->PCCON & 0x0FFFFCFFF) | 0x00001000)
41#define CLR_MUX1_ENABLE         (gpio->PCDAT |= 0x00040)
42#define SET_MUX1_ENABLE         (gpio->PCDAT &= 0x0FFBF)
43
44#define CON_MUX2_ENABLE         (gpio->PCCON = (gpio->PCCON & 0x0FFFF3FFF) | 0x00004000)
45#define CLR_MUX2_ENABLE         (gpio->PCDAT |= 0x00080)
46#define SET_MUX2_ENABLE         (gpio->PCDAT &= 0x0FF7F)
47
48#define CON_MUX3_ENABLE         (gpio->PCCON = (gpio->PCCON & 0x0FFFCFFFF) | 0x00010000)
49#define CLR_MUX3_ENABLE         (gpio->PCDAT |= 0x00100)
50#define SET_MUX3_ENABLE         (gpio->PCDAT &= 0x0FEFF)
51
52#define CON_MUX4_ENABLE         (gpio->PCCON = (gpio->PCCON & 0x0FFF3FFFF) | 0x00040000)
53#define CLR_MUX4_ENABLE         (gpio->PCDAT |= 0x00200)
54#define SET_MUX4_ENABLE         (gpio->PCDAT &= 0x0FDFF)
55
56#define CON_SEL_TEMP_V_0        (gpio->PCCON = (gpio->PCCON & 0x0FFCFFFFF) | 0x00100000)
57#define CLR_SEL_TEMP_V_0        (gpio->PCDAT &= 0x0FBFF)
58#define SET_SEL_TEMP_V_0        (gpio->PCDAT |= 0x00400)
59
60#define CON_SEL_TEMP_V_1        (gpio->PCCON = (gpio->PCCON & 0x0FF3FFFFF) | 0x00400000)
61#define CLR_SEL_TEMP_V_1        (gpio->PCDAT &= 0x0F7FF)
62#define SET_SEL_TEMP_V_1        (gpio->PCDAT |= 0x00800)
63
64#define CON_SEL_TEMP_V_2        (gpio->PCCON = (gpio->PCCON & 0x0FCFFFFFF) | 0x01000000)
65#define CLR_SEL_TEMP_V_2        (gpio->PCDAT &= 0x0EFFF)
66#define SET_SEL_TEMP_V_2        (gpio->PCDAT |= 0x01000)
67
68#define CON_SEL_TEMP_V_3        (gpio->PCCON = (gpio->PCCON & 0x0F3FFFFFF) | 0x04000000)
69#define CLR_SEL_TEMP_V_3        (gpio->PCDAT &= 0x0DFFF)
70#define SET_SEL_TEMP_V_3        (gpio->PCDAT |= 0x02000)
71
72/* TSC2000 register definition */
73#define TSC2000_REG_X           ((0 << 11) | (0 << 5))
74#define TSC2000_REG_Y           ((0 << 11) | (1 << 5))
75#define TSC2000_REG_Z1          ((0 << 11) | (2 << 5))
76#define TSC2000_REG_Z2          ((0 << 11) | (3 << 5))
77#define TSC2000_REG_BAT1        ((0 << 11) | (5 << 5))
78#define TSC2000_REG_BAT2        ((0 << 11) | (6 << 5))
79#define TSC2000_REG_AUX1        ((0 << 11) | (7 << 5))
80#define TSC2000_REG_AUX2        ((0 << 11) | (8 << 5))
81#define TSC2000_REG_TEMP1       ((0 << 11) | (9 << 5))
82#define TSC2000_REG_TEMP2       ((0 << 11) | (0xA << 5))
83#define TSC2000_REG_DAC         ((0 << 11) | (0xB << 5))
84#define TSC2000_REG_ZERO        ((0 << 11) | (0x10 << 5))
85#define TSC2000_REG_ADC         ((1 << 11) | (0 << 5))
86#define TSC2000_REG_DACCTL      ((1 << 11) | (2 << 5))
87#define TSC2000_REG_REF         ((1 << 11) | (3 << 5))
88#define TSC2000_REG_RESET       ((1 << 11) | (4 << 5))
89#define TSC2000_REG_CONFIG      ((1 << 11) | (5 << 5))
90
91/* bit definition of TSC2000 ADC register */
92#define TC_PSM                  (1 << 15)
93#define TC_STS                  (1 << 14)
94#define TC_AD3                  (1 << 13)
95#define TC_AD2                  (1 << 12)
96#define TC_AD1                  (1 << 11)
97#define TC_AD0                  (1 << 10)
98#define TC_RS1                  (1 << 9)
99#define TC_RS0                  (1 << 8)
100#define TC_AV1                  (1 << 7)
101#define TC_AV0                  (1 << 6)
102#define TC_CL1                  (1 << 5)
103#define TC_CL0                  (1 << 4)
104#define TC_PV2                  (1 << 3)
105#define TC_PV1                  (1 << 2)
106#define TC_PV0                  (1 << 1)
107
108/* default value for TSC2000 ADC register for use with touch functions */
109#define DEFAULT_ADC             (TC_PV1 | TC_AV0 | TC_AV1 | TC_RS0)
110
111#define TSC2000_DELAY_BASE      500
112#define TSC2000_NO_SENSOR       -0x10000
113
114#define ERROR_BATTERY           220     /* must be adjusted, if R68 is changed on TRAB */
115
116void tsc2000_write(unsigned short, unsigned short);
117unsigned short tsc2000_read (unsigned short);
118u16 tsc2000_read_channel (unsigned int);
119void tsc2000_set_mux (unsigned int);
120void tsc2000_set_range (unsigned int);
121void tsc2000_reg_init (void);
122s32 tsc2000_contact_temp (void);
123void spi_wait_transmit_done (void);
124void spi_init(void);
125int tsc2000_interpolate(long value, long data[][2], long *result);
126void adc_wait_conversion_done(void);
127
128
129static inline void SET_CS_TOUCH(void)
130{
131        S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
132
133        gpio->PDDAT &= 0x5FF;
134}
135
136
137static inline void CLR_CS_TOUCH(void)
138{
139        S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
140
141        gpio->PDDAT |= 0x200;
142}
143
144#endif  /* _TSC2000_H_ */
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