1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
#ifndef _CP210X_H_
#define _CP210X_H_
#include <libusb.h>
typedef struct {
libusb_device *device;
libusb_device_handle *handle;
int interface;
} CP210X;
struct cp210x_port_state {
uint16_t mode; /* push-pull = 1, open-drain = 0 */
uint16_t low_power; /* 1 = ground the pin, and disable */
uint16_t latch;
} __attribute__((packed));
/* LOPWR MODE LATCH */
/* 0 0 0 Pin drivers are totem pole, and inital config sinks current to GND */
/* 0 0 1 Pin drivers are totem pole, and inital config sources current from VIO */
/* 0 1 0 Pin drivers are open drain, and inital config sinks current to GND */
/* 0 1 1 Pin drivers are open drain, and inital config leaves pin HI-Z (you want this for inputs) */
/* 1 X X Pin drivers are disabled, and pin sinks current to GND */
struct cp210x_port_config {
struct cp210x_port_state reset;
struct cp210x_port_state suspend;
uint8_t enhanced_fxn;
} __attribute__((packed));
#define CP_EFXN_GPIO_0_IS_TXLED (1 << 0)
#define CP_EFXN_GPIO_1_IS_RXLED (1 << 1)
#define CP_EFXN_GPIO_2_IS_RS485_TX (1 << 2)
#define CP_EFXN_UNUSED_1 (1 << 3) /* Set to zero */
#define CP_EFXN_ENABLE_WPU (1 << 4)
#define CP_EFXN_UNUSED_2 (1 << 5) /* Set to zero */
#define CP_EFXN_SERIAL_AUTOOFF (1 << 6)
#define CP_EFXN_GPIOL_AUTOOFF (1 << 7)
#define CP_PIN_RI (1 << 0)
#define CP_PIN_DCD (1 << 1)
#define CP_PIN_DTR (1 << 2)
#define CP_PIN_DSR (1 << 3)
#define CP_PIN_TXD (1 << 4)
#define CP_PIN_RXD (1 << 5)
#define CP_PIN_RTS (1 << 6)
#define CP_PIN_CTS (1 << 7)
#define CP_PIN_GPIO_0 (1 << 8)
#define CP_PIN_GPIO_1 (1 << 9)
#define CP_PIN_GPIO_2 (1 << 10)
#define CP_PIN_GPIO_3 (1 << 11)
#define CP_PIN_UNUSED_1 (1 << 12)
#define CP_PIN_UNUSED_2 (1 << 13)
#define CP_PIN_GPIO_SUSPEND (1 << 14)
#define CP_PIN_GPIO_NSUSPEND (1 << 15)
#define CP_INPUT_PINS (CP_PIN_RXD|CP_PIN_CTS|CP_PIN_DSR|CP_PIN_RI|CP_PIN_DCD)
/* CP2103 GPIO */
#define CP_GPIO_0 0x01
#define CP_GPIO_1 0x02
#define CP_GPIO_2 0x04
#define CP_GPIO_3 0x08
#define CP_GPIO_MASK (CP_GPIO_0|CP_GPIO_1|CP_GPIO_2|CP_GPIO_3)
#define CP210X_MAX_PRODUCT_STRLEN 0x7d
#define CP210X_MAX_SERIAL_STRLEN 0x3f
#define CP210X_MAX_MFG_STRLEN 0x18
#define CP210X_MAX_MAXPOWER 250
extern int cp210x_set_config(CP210X *c, uint8_t request, unsigned int *data, int size);
extern int cp210x_set_gpio(CP210X *c, uint8_t gpio);
extern int cp210x_set_portconf(CP210X *c, struct cp210x_port_config *config);
extern int cp210x_get_portconf(CP210X *c, struct cp210x_port_config *config);
extern int cp210x_set_dtr(CP210X *c, int on);
extern int cp210x_set_vid(CP210X *c, uint16_t vid);
extern int cp210x_set_pid(CP210X *c, uint16_t pid);
extern int cp210x_set_dev_ver(CP210X *c, uint16_t ver);
extern ssize_t cp210x_read(CP210X *c, void *buf, size_t len, unsigned int timeout);
extern int cp210x_set_mfg(CP210X *c, uint8_t *s, int len);
extern int cp210x_set_product(CP210X *c, uint8_t *s, int len);
extern int cp210x_set_serial(CP210X *c, uint8_t *s, int len);
extern int cp210x_setup(CP210X *c);
extern int cp210x_reset(CP210X *c);
extern CP210X *cp210x_open(void);
extern void cp210x_close(CP210X *c);
#endif
|
