HP85 GPIB Disk Emulator  1.0
HP85GPIBDiskEmulator
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hal.h
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1 
23 #ifndef _INCLUDE_HAL_H_
24 #define _INCLUDE_HAL_H_
25 
26 // =============================================
28 #ifdef AVR
29 
30 #include "gpio-1284p.h"
31 
32 #define SCK GPIO_B7
33 #define MISO GPIO_B6
34 #define MOSI GPIO_B5
35 
36 #define MMC_CS GPIO_B3
37 
38 #define SCL GPIO_C0
39 #define SDA GPIO_C1
40 
41 #define RX0 GPIO_D0
42 #define TX0 GPIO_D1
43 
44 #define LED1 GPIO_C6
45 #define SS GPIO_B4
48 
49 #define LED2 GPIO_B4
50 
51 #define CD GPIO_C7 /* Card Detect */
52 
65 
66 #define GPIO_PORT2SFR(port,base) _SFR_IO8( (((port) * 3) + (base)) )
67 #define GPIO_PIN2SFR(pin,base) GPIO_PORT2SFR(((pin)>>3),(base) )
68 
70 #define GPIO_PIN_MODE(pin) /* FIXME TODO */
71 
73 #define GPIO_PIN_DIR_IN(pin) BIT_CLR(GPIO_PIN2SFR(pin,DDR_BASE), ((pin) & 7))
74 #define GPIO_PIN_TST(pin) BIT_TST(GPIO_PIN2SFR(pin,PIN_BASE), ((pin) & 7))
75 #define GPIO_PIN_RD(pin) (GPIO_PIN_DIR_IN(pin), GPIO_PIN_TST(pin))
76 
78 #define GPIO_PIN_LATCH_LOW(pin) BIT_CLR(GPIO_PIN2SFR(pin,PORT_BASE), ((pin) & 7))
79 #define GPIO_PIN_LATCH_HI(pin) BIT_SET(GPIO_PIN2SFR(pin,PORT_BASE), ((pin) & 7))
80 #define GPIO_PIN_LATCH_RD(pin) BIT_TST(GPIO_PIN2SFR(pin,PORT_BASE), ((pin) & 7))
81 
83 #define GPIO_PIN_DIR_OUT(pin) BIT_SET(GPIO_PIN2SFR(pin,DDR_BASE), ((pin) & 7))
84 #define GPIO_PIN_LOW(pin) (GPIO_PIN_LATCH_LOW(pin), GPIO_PIN_DIR_OUT(pin))
85 #define GPIO_PIN_HI(pin) (GPIO_PIN_LATCH_HI(pin), GPIO_PIN_DIR_OUT(pin))
86 #define GPIO_PIN_WR(pin,level) ((level) ? GPIO_PIN_HI(pin) : GPIO_PIN_LOW(pin))
87 
88 #define GPIO_PIN_FLOAT(pin) GPIO_PIN_DIR_IN(pin)
89 //MG 5June2020 active pull up was disable - now enabled
90 //#define GPIO_PIN_FLOAT_UP(pin) GPIO_PIN_DIR_IN(pin)
91 #define GPIO_PIN_FLOAT_UP(pin) (GPIO_PIN_DIR_IN(pin),GPIO_PIN_LATCH_HI(pin))
92 
93 #define GPIO_PORT_DIR_OUT(port) (GPIO_PORT2SFR(port,DDR_BASE) = 0xff)
94 #define GPIO_PORT_DIR_IN(port) (GPIO_PORT2SFR(port,DDR_BASE) = 0x00)
95 
96 // GPIB
97 #define GPIO_PORT_PINS_RD(port) (GPIO_PORT2SFR(port,PIN_BASE) & 0xff)
98 #define GPIO_PORT_DDR_RD(port) (GPIO_PORT2SFR(port,DDR_BASE) & 0xff)
99 #define GPIO_PORT_DDR_WR(port,val) (GPIO_PORT2SFR(port,DDR_BASE) = (val))
100 #define GPIO_PORT_LATCH_WR(port,val) (GPIO_PORT2SFR(port,PORT_BASE) = (val))
101 #define GPIO_PORT_LATCH_RD(port) GPIO_PORT2SFR(port,PORT_BASE)
102 
103 #define GPIO_PORT_RD(port) (GPIO_PORT_DIR_IN(port), GPIO_PORT_PINS_RD(port))
104 #define GPIO_PORT_WR(port,val) (GPIO_PORT_DIR_OUT(port), GPIO_PORT_LATCH_WR(port,val))
105 
112 
113 /*
114  FIXME make sure these OLD AVR definitions are not being used
115  GPIO_PIN_DIR_IN(a)
116  GPIO_PIN_DIR_OUT(a)
117  GPIO_PIN_LATCH_LOW(a)
118  GPIO_PIN_LATCH_HI(a)
119  GPIO_PIN_LATCH_RD(a)
120  GPIO_PIN_RD(a)
121  GPIO_PIN_LATCH_HI(a)
122  GPIO_PIN_LATCH_LOW(a)
123  IO_HI(a)
124 IO_LOW(a)
125 IO_RD(a)
126 GPIO_PIN_FLOAT(a)
127 GPIO_PIN_LATCH_RD(a)
128 GPIO_PIN_TST(a)
129 GPIO_PIN_LATCH_LOW(a)
130 GPIO_PIN_LATCH_HI(a)
131 */
132 #endif // AVR
133 // =============================================
134 
135 // =============================================
137 #ifdef ESP8266
138 
139 // not defined in eagle_soc.h
140 #define FUNC_GPIO6 3
141 #define FUNC_GPIO7 3
142 #define FUNC_GPIO8 3
143 #define FUNC_GPIO11 3
144 
146 #define GPIO_PIN_MODE(pin) gpio_pin_sfr_mode(pin);
147 
149 #define GPIO_PIN_DIR_IN(pin) GPIO_REG_WRITE(GPIO_ENABLE_W1TC_ADDRESS, 1<<(pin))
150 #define GPIO_PIN_TST(pin) BIT_TST(GPIO_REG_READ(GPIO_IN_ADDRESS),(pin))
151 #define GPIO_PIN_RD(pin) GPIO_PIN_DIR_IN(pin), GPIO_PIN_TST(pin)
153 
155 #define GPIO_PIN_LATCH_LOW(pin) GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, 1<<(pin))
156 #define GPIO_PIN_LATCH_HI(pin) GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, 1<<(pin))
157 #define GPIO_PIN_LATCH_RD(pin) BIT_TST(GPIO_REG_READ(GPIO_OUT_DATA),(pin))
159 
161 #define GPIO_PIN_DIR_OUT(pin) GPIO_REG_WRITE(GPIO_ENABLE_W1TS_ADDRESS, 1<<(pin))
162 #define GPIO_PIN_HI(pin) GPIO_PIN_LATCH_HI(pin), GPIO_PIN_DIR_OUT(pin)
163 #define GPIO_PIN_LOW(pin) GPIO_PIN_LATCH_LOW(pin), GPIO_PIN_DIR_OUT(pin)
164 #define GPIO_PIN_WR(pin,val) (val) ? GPIO_PIN_HI(pin) : GPIO_PIN_LOW(pin)
165 
166 // =============================================
168 // GPIO pin 16 is special - it uses the RTC GPIO pin
170 #define GPIO16_PIN_MODE() gpio_pin_sfr_mode(16)
171 
173 #define GPIO16_PIN_DIR_IN() gpio16_pin_dir(0)
174 #define GPIO16_PIN_RD() ( READ_PERI_REG(RTC_GPIO_IN_DATA) & 1 )
175 #define GPIO16_RD() ( GPIO16_PIN_DIR_IN(), GPIO16_PIN_RD() )
177 
179 #define GPIO16_PIN_LATCH_LOW() \
180 WRITE_PERI_REG(RTC_GPIO_OUT, (READ_PERI_REG(RTC_GPIO_OUT)&(uint32_t)0xfffffffe) )
181 #define GPIO16_PIN_LATCH_HI() \
182 WRITE_PERI_REG(RTC_GPIO_OUT, (READ_PERI_REG(RTC_GPIO_OUT)&(uint32_t)0xfffffffe)|(uint32_t)1)
183 #define GPIO16_LATCH_RD() ( READ_PERI_REG(RTC_GPIO_OUT) & 1 )
184 
186 #define GPIO16_PIN_DIR_OUT() gpio16_pin_dir(1)
187 #define GPIO16_PIN_HI() GPIO16_PIN_LATCH_HI(), GPIO16_PIN_DIR_OUT()
188 #define GPIO16_PIN_LOW() GPIO16_PIN_LATCH_LOW(), GPIO16_PIN_DIR_OUT()
189 #define GPIO16_PIN_OUT(val) (val) ? GPIO16_PIN_HI() : GPIO16_PIN_LOW()
190 
191 //FIXME do pull up modes
192 #define GPIO16_PIN_FLOAT() GPIO16_PIN_DIR_IN()
193 
194 void MEMSPACE gpio_pin_sfr_mode ( int pin );
195 void MEMSPACE gpio16_pin_dir ( uint8_t out );
196 // =============================================
197 #endif // ESP8266
198 // =============================================
199 
200 
201 
202 /* hal.c */
203 void gpio_pin_out ( uint8_t pin , uint8_t val );
204 uint8_t gpio_pin_rd ( uint8_t pin );
205 void chip_select_init ( uint8_t pin );
206 void chip_select ( uint8_t pin );
207 void chip_deselect ( uint8_t pin );
208 void chip_addr_init ( void );
209 void chip_addr ( int addr __attribute__ ((unused )));
210 void spi_waitReady ( void );
211 void spi_init ( uint32_t clock , int pin );
212 void spi_begin ( uint32_t clock , int pin );
213 void spi_end ( uint8_t pin );
214 uint8_t spi_chip_select_status ( void );
215 void spi_TX_buffer ( const uint8_t *data , int count );
216 void spi_RX_buffer ( const uint8_t *data , int count );
217 void spi_TXRX_buffer ( const uint8_t *data , int count );
218 uint8_t spi_RX ( void );
219 void spi_TX ( uint8_t data );
220 uint8_t spi_TXRX ( uint8_t data );
221 void set_error ( uint8_t error );
222 void clear_error ( void );
223 uint8_t is_error ( void );
224 
225 #endif /* _INCLUDE_HAL_H_ */
is_error
uint8_t is_error(void)
is error - test
Definition: hal.c:521
chip_select
void chip_select(uint8_t pin)
set GPIO to select - LOW
Definition: hal.c:210
chip_addr_init
void chip_addr_init(void)
ADDRESS select HAL.
Definition: hal.c:241
gpio_pin_out
void gpio_pin_out(uint8_t pin, uint8_t val)
AVR GPIO MACROs.
Definition: hal.c:150
clear_error
void clear_error(void)
Set error condition.
Definition: hal.c:513
spi_TX
void spi_TX(uint8_t data)
SPI write 1 byte.
Definition: hal.c:477
chip_select_init
void chip_select_init(uint8_t pin)
CHIP select HAL.
Definition: hal.c:194
MEMSPACE
#define MEMSPACE
Definition: user_config.h:17
chip_deselect
void chip_deselect(uint8_t pin)
set GPIO to deselect - HI
Definition: hal.c:225
gpio_pin_rd
uint8_t gpio_pin_rd(uint8_t pin)
read GPIO pin
Definition: hal.c:174
set_error
void set_error(uint8_t error)
Set error condition.
Definition: hal.c:505
gpio-1284p.h
spi_TXRX_buffer
void spi_TXRX_buffer(const uint8_t *data, int count)
SPI write/read buffer.
Definition: hal.c:448
spi_waitReady
void spi_waitReady(void)
SPI bus wrapper functions for multiple device support.
Definition: hal.c:307
spi_TXRX
uint8_t spi_TXRX(uint8_t data)
SPI read and write 1 byte.
Definition: hal.c:491
spi_chip_select_status
uint8_t spi_chip_select_status(void)
SPI CS pin status return CS GPIO pin number or 0xff.
Definition: hal.c:408
spi_RX
uint8_t spi_RX(void)
SPI read 1 byte.
Definition: hal.c:461
spi_init
void spi_init(uint32_t clock, int pin)
Definition: hal.c:328
spi_end
void spi_end(uint8_t pin)
SPI chip disable function wait for current tranaction to finish!
Definition: hal.c:391
spi_RX_buffer
void spi_RX_buffer(const uint8_t *data, int count)
SPI read buffer.
Definition: hal.c:433
chip_addr
void chip_addr(int addr __attribute__((unused)))
set address on GPIO lines
Definition: hal.c:271
spi_TX_buffer
void spi_TX_buffer(const uint8_t *data, int count)
SPI write buffer.
Definition: hal.c:418
spi_begin
void spi_begin(uint32_t clock, int pin)
SPI chip enable function Function waits for current tranaction to finish before proceeding.
Definition: hal.c:357
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