GPIO_NXP_Arduino 1.0.0
GPIO device operation sample code for Arduino
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GPIO_NXP.cpp
1#include "GPIO_NXP.h"
2
3/* ******** GPIO_base ******** */
4
5GPIO_base::GPIO_base( uint8_t i2c_address, const int nbits, const uint8_t* ar, uint8_t ai ) :
6 I2C_device( i2c_address ),
7 n_bits( nbits ),
8 n_ports( (nbits + 7) / 8 ),
9 arp( ar ),
10 auto_increment( ai )
11{
12 init();
13}
14
15GPIO_base::GPIO_base( TwoWire& wire, uint8_t i2c_address, const int nbits, const uint8_t* ar, uint8_t ai ) :
16 I2C_device( wire, i2c_address ),
17 n_bits( nbits ),
18 n_ports( (nbits + 7) / 8 ),
19 arp( ar ),
20 auto_increment( ai )
21{
22 init();
23}
24
25void GPIO_base::init( void )
26{
27 constexpr uint16_t i = 0x0001;
28 uint8_t* tp = (uint8_t*)(&i);
29
30 endian = tp[ 0 ]; // 'true' if LittleEndian
31}
32
34{
35}
36
37void GPIO_base::begin( board env )
38{
39 if ( env ) {
40 pinMode(RESET_PIN, OUTPUT);
41 pinMode(ADDR_PIN, OUTPUT);
42
43 digitalWrite( RESET_PIN , 1 );
44 digitalWrite( ADDR_PIN , 1 );
45 digitalWrite( ADDR_PIN , 0 );
46 delay( 1 );
47
48 digitalWrite( RESET_PIN , 0 );
49 delay( 1 ); // reset time = 500ns(min)
50 digitalWrite( RESET_PIN , 1 );
51 delay( 1 ); // reset recovery time = 600ns(min)
52 }
53}
54
55void GPIO_base::output( int port, uint8_t value, uint8_t mask )
56{
57 if ( mask )
58 bit_op8( *(arp + OUT) + port, mask, value );
59
60 write_r8( *(arp + OUT) + port, value );
61}
62
63void GPIO_base::output( uint8_t *vp )
64{
65 write_port( OUT, vp );
66}
67
68uint8_t GPIO_base::input( int port )
69{
70 return read_r8( *(arp + IN) + port );
71}
72
73uint8_t* GPIO_base::input( uint8_t *vp )
74{
75 read_port( IN, vp );
76
77 return vp;
78}
79
80void GPIO_base::config( int port, uint8_t config, uint8_t mask )
81{
82 if ( mask )
83 bit_op8( *(arp + CONFIG) + port, mask, config );
84
85 write_r8( *(arp + CONFIG) + port, config );
86}
87
88void GPIO_base::config( uint8_t* vp )
89{
90 write_port( CONFIG, vp );
91}
92
93void GPIO_base::write_port( access_word w, uint8_t* vp )
94{
95 if ( auto_increment ) {
96 reg_w( auto_increment | *(arp + w), vp, n_ports );
97 }
98 else {
99 for ( int i = 0; i < n_ports; i++ )
100 write_r8( *(arp + w) + i, *vp++ );
101 }
102}
103
104void GPIO_base::write_port16( access_word w, uint16_t* vp )
105{
106 if ( endian ) {
107 uint16_t temp;
108 for ( int i = 0; i < n_ports; i++ ) {
109 temp = vp[ i ] << 8;
110 vp[ i ] = temp | vp[ i ] >> 8;
111 }
112 }
113
114 int n_bytes = (n_bits * 2 + 7) / 8;
115
116 if ( auto_increment ) {
117 reg_w( auto_increment | *(arp + w), (uint8_t*)vp, n_bytes );
118 }
119 else {
120 for ( int i = 0; i < n_bytes; i++ )
121 write_r8( *(arp + w) + i, *vp++ );
122 }
123}
124
125uint8_t* GPIO_base::read_port( access_word w, uint8_t* vp )
126{
127 if ( auto_increment ) {
128 reg_r( auto_increment | *(arp + w), vp, n_ports );
129 }
130 else {
131 for ( int i = 0; i < n_ports; i++ )
132 *(vp + i) = read_r8( *(arp + w) + i );
133 }
134
135 return vp;
136}
137
138uint16_t* GPIO_base::read_port16( access_word w, uint16_t* vp )
139{
140 int n_bytes = (n_bits * 2 + 7) / 8;
141
142 if ( auto_increment ) {
143 reg_r( auto_increment | *(arp + w), (uint8_t*)vp, n_bytes );
144 }
145 else {
146 for ( int i = 0; i < n_bytes; i++ )
147 *(vp + i) = read_r8( *(arp + w) + i );
148 }
149
150
151 if ( endian ) {
152 uint16_t temp;
153
154 for ( int i = 0; i < n_ports; i++ ) {
155 temp = vp[ i ] << 8;
156 vp[ i ] = temp | vp[ i ] >> 8;
157 }
158 }
159
160 return vp;
161}
162
163void GPIO_base::write_port( access_word w, uint8_t value, int port_num )
164{
165 write_r8( *(arp + w) + port_num, value );
166}
167
168void GPIO_base::write_port16( access_word w, uint16_t value, int port_num )
169{
170 write_r16( *(arp + w) + port_num, value );
171}
172
173uint8_t GPIO_base::read_port( access_word w, int port_num )
174{
175 return read_r8( *(arp + w) + port_num );
176}
177
178uint16_t GPIO_base::read_port16( access_word w, int port_num )
179{
180 return read_r16( *(arp + w) + port_num );
181}
182
183void GPIO_base::print_bin( uint8_t v )
184{
185 Serial.print(" 0b");
186 for (int i = 7; 0 <= i; i-- )
187 Serial.print(((v >> i) & 0x1) ? "1" : "0");
188}
189
190
191/* ******** PCA9554 ******** */
192
193PCA9554::PCA9554( uint8_t i2c_address ) :
194 GPIO_base( i2c_address, 8, access_ref, 0x00 )
195{
196}
197
198PCA9554::PCA9554( TwoWire& wire, uint8_t i2c_address ) :
199 GPIO_base( wire, i2c_address, 8, access_ref, 0x00 )
200{
201}
202
204{
205}
206
207constexpr uint8_t PCA9554::access_ref[];
208
209
210/* ******** PCA9555 ******** */
211
212PCA9555::PCA9555( uint8_t i2c_address ) :
213 GPIO_base( i2c_address, 16, access_ref, 0x00 )
214{
215}
216
217PCA9555::PCA9555( TwoWire& wire, uint8_t i2c_address ) :
218 GPIO_base( wire, i2c_address, 8, access_ref, 0x00 )
219{
220}
221
223{
224}
225
226constexpr uint8_t PCA9555::access_ref[];
227
228
229/* ******** PCAL6xxx_base ******** */
230
231PCAL6xxx_base::PCAL6xxx_base( uint8_t i2c_address, const int nbits, const uint8_t arp[], uint8_t ai ) :
232 GPIO_base( i2c_address, nbits, arp, ai )
233{
234}
235
236PCAL6xxx_base::PCAL6xxx_base( TwoWire& wire, uint8_t i2c_address, const int nbits, const uint8_t arp[], uint8_t ai ) :
237 GPIO_base( wire, i2c_address, nbits, arp, ai )
238{
239}
240
241PCAL6xxx_base::~PCAL6xxx_base()
242{
243}
244
245
246/* ******** PCAL6408A ******** */
247
248PCAL6408A::PCAL6408A( uint8_t i2c_address ) :
249 PCAL6xxx_base( i2c_address, 8, access_ref, 0 )
250{
251}
252
253PCAL6408A::PCAL6408A( TwoWire& wire, uint8_t i2c_address ) :
254 PCAL6xxx_base( wire, i2c_address, 8, access_ref, 0 )
255{
256}
257
259{
260}
261
262constexpr uint8_t PCAL6408A::access_ref[];
263
264
265/* ******** PCAL6416A ******** */
266
267PCAL6416A::PCAL6416A( uint8_t i2c_address ) :
268 PCAL6xxx_base( i2c_address, 16, access_ref, 0 )
269{
270}
271
272PCAL6416A::PCAL6416A( TwoWire& wire, uint8_t i2c_address ) :
273 PCAL6xxx_base( wire, i2c_address, 8, access_ref, 0 )
274{
275}
276
278{
279}
280
281constexpr uint8_t PCAL6416A::access_ref[];
282
283
284/* ******** PCAL6524 ******** */
285
286PCAL6524::PCAL6524( uint8_t i2c_address ) :
287 PCAL6xxx_base( i2c_address, 24, access_ref, 0x80 )
288{
289}
290
291PCAL6524::PCAL6524( TwoWire& wire, uint8_t i2c_address ) :
292 PCAL6xxx_base( wire, i2c_address, 8, access_ref, 0 )
293{
294}
295
297{
298}
299
300constexpr uint8_t PCAL6524::access_ref[];
301
302
303/* ******** PCAL6534 ******** */
304
305PCAL6534::PCAL6534( uint8_t i2c_address ) :
306 PCAL6xxx_base( i2c_address, 34, access_ref, 0x80 )
307{
308}
309
310PCAL6534::PCAL6534( TwoWire& wire, uint8_t i2c_address ) :
311 PCAL6xxx_base( wire, i2c_address, 8, access_ref, 0 )
312{
313}
314
316{
317}
318
319constexpr uint8_t PCAL6534::access_ref[];
GPIO_base(uint8_t i2c_address, const int nbits, const uint8_t *arp, uint8_t ai)
Definition GPIO_NXP.cpp:5
uint16_t * read_port16(access_word w, uint16_t *vp)
Definition GPIO_NXP.cpp:138
const int n_bits
Definition GPIO_NXP.h:53
void config(int port, uint8_t config, uint8_t mask=0)
Definition GPIO_NXP.cpp:80
const int n_ports
Definition GPIO_NXP.h:56
virtual ~GPIO_base()
Definition GPIO_NXP.cpp:33
void write_port16(access_word w, uint16_t *vp)
Definition GPIO_NXP.cpp:104
void output(int port, uint8_t value, uint8_t mask=0)
Definition GPIO_NXP.cpp:55
void write_port(access_word w, uint8_t *vp)
Definition GPIO_NXP.cpp:93
void begin(board env=NONE)
Definition GPIO_NXP.cpp:37
uint8_t input(int port)
Definition GPIO_NXP.cpp:68
uint8_t * read_port(access_word w, uint8_t *vp)
Definition GPIO_NXP.cpp:125
PCA9554(uint8_t i2c_address=(0x40 > > 1)+0)
Definition GPIO_NXP.cpp:193
virtual ~PCA9554()
Definition GPIO_NXP.cpp:203
virtual ~PCA9555()
Definition GPIO_NXP.cpp:222
PCA9555(uint8_t i2c_address=(0x40 > > 1)+0)
Definition GPIO_NXP.cpp:212
PCAL6408A(uint8_t i2c_address=(0x40 > > 1)+0)
Definition GPIO_NXP.cpp:248
virtual ~PCAL6408A()
Definition GPIO_NXP.cpp:258
PCAL6416A(uint8_t i2c_address=(0x40 > > 1)+0)
Definition GPIO_NXP.cpp:267
virtual ~PCAL6416A()
Definition GPIO_NXP.cpp:277
virtual ~PCAL6524()
Definition GPIO_NXP.cpp:296
PCAL6524(uint8_t i2c_address=(0x44 > > 1)+0)
Definition GPIO_NXP.cpp:286
virtual ~PCAL6534()
Definition GPIO_NXP.cpp:315
PCAL6534(uint8_t i2c_address=(0x44 > > 1)+0)
Definition GPIO_NXP.cpp:305