1  /*
 2   * Copyright 2014 Con Kolivas
 3   *
 4   * This program is free software; you can redistribute it and/or modify it
 5   * under the terms of the GNU General Public License as published by the Free
 6   * Software Foundation; either version 3 of the License, or (at your option)
 7   * any later version.  See COPYING for more details.
 8   */
 9  
10  #ifndef MCP2210_H
11  #define MCP2210_H
12  
13  #define MCP2210_BUFFER_LENGTH		64
14  #define MCP2210_TRANSFER_MAX		60
15  
16  #define MCP2210_PIN_GPIO		0x0
17  #define MCP2210_PIN_CS			0x1
18  #define MCP2210_PIN_DEDICATED		0x2
19  
20  #define MCP2210_GPIO_PIN_LOW		0
21  #define MCP2210_GPIO_PIN_HIGH		1
22  
23  #define MCP2210_GPIO_OUTPUT		0
24  #define MCP2210_GPIO_INPUT		1
25  
26  #define MCP2210_SPI_CANCEL		0x11
27  #define MCP2210_GET_GPIO_SETTING	0x20
28  #define MCP2210_SET_GPIO_SETTING	0x21
29  #define MCP2210_SET_GPIO_PIN_VAL	0x30
30  #define MCP2210_GET_GPIO_PIN_VAL	0x31
31  #define MCP2210_SET_GPIO_PIN_DIR	0x32
32  #define MCP2210_GET_GPIO_PIN_DIR	0x33
33  #define MCP2210_SET_SPI_SETTING		0X40
34  #define MCP2210_GET_SPI_SETTING		0X41
35  #define MCP2210_SPI_TRANSFER		0x42
36  
37  #define MCP2210_SPI_TRANSFER_SUCCESS	0x00
38  #define MCP2210_SPI_TRANSFER_ERROR_NA	0xF7	// SPI not available due to external owner
39  #define MCP2210_SPI_TRANSFER_ERROR_IP	0xF8	// SPI not available due to transfer in progress
40  
41  struct gpio_pin {
42  	uint8_t pin[9];
43  };
44  
45  struct mcp_settings {
46  	struct gpio_pin designation;
47  	struct gpio_pin value;
48  	struct gpio_pin direction;
49  	unsigned int bitrate, icsv, acsv, cstdd, ldbtcsd, sdbd, bpst, spimode;
50  };
51  
52  bool mcp2210_send_recv(struct cgpu_info *cgpu, char *buf, enum usb_cmds cmd);
53  bool mcp2210_get_gpio_settings(struct cgpu_info *cgpu, struct mcp_settings *mcp);
54  bool mcp2210_set_gpio_settings(struct cgpu_info *cgpu, struct mcp_settings *mcp);
55  bool mcp2210_get_gpio_pindes(struct cgpu_info *cgpu, struct gpio_pin *gp);
56  bool mcp2210_get_gpio_pinvals(struct cgpu_info *cgpu, struct gpio_pin *gp);
57  bool mcp2210_get_gpio_pindirs(struct cgpu_info *cgpu, struct gpio_pin *gp);
58  bool mcp2210_get_gpio_pin(struct cgpu_info *cgpu, int pin, int *des);
59  bool mcp2210_get_gpio_pinval(struct cgpu_info *cgpu, int pin, int *val);
60  bool mcp2210_get_gpio_pindir(struct cgpu_info *cgpu, int pin, int *dir);
61  bool mcp2210_spi_cancel(struct cgpu_info *cgpu);
62  bool
63  mcp2210_get_spi_transfer_settings(struct cgpu_info *cgpu, unsigned int *bitrate, unsigned int *icsv,
64  				  unsigned int *acsv, unsigned int *cstdd, unsigned int *ldbtcsd,
65  				  unsigned int *sdbd, unsigned int *bpst, unsigned int *spimode);
66  bool
67  mcp2210_set_spi_transfer_settings(struct cgpu_info *cgpu, unsigned int bitrate, unsigned int icsv,
68  				  unsigned int acsv, unsigned int cstdd, unsigned int ldbtcsd,
69  				  unsigned int sdbd, unsigned int bpst, unsigned int spimode);
70  bool mcp2210_spi_transfer(struct cgpu_info *cgpu, struct mcp_settings *mcp,
71  			  char *data, unsigned int *length);
72  
73  #endif /* MCP2210_H */