1
2
3
4
5
6
7
8
9
10
11 #ifndef PCAN_USB_CORE_H
12 #define PCAN_USB_CORE_H
13
14
15 #define PCAN_USB_VENDOR_ID 0x0c72
16
17
18 #define PCAN_USB_PRODUCT_ID 0x000c
19 #define PCAN_USBPRO_PRODUCT_ID 0x000d
20 #define PCAN_USBPROFD_PRODUCT_ID 0x0011
21 #define PCAN_USBFD_PRODUCT_ID 0x0012
22 #define PCAN_USBCHIP_PRODUCT_ID 0x0013
23 #define PCAN_USBX6_PRODUCT_ID 0x0014
24
25 #define PCAN_USB_DRIVER_NAME "peak_usb"
26
27
28 #define PCAN_USB_MAX_RX_URBS 4
29 #define PCAN_USB_MAX_TX_URBS 10
30
31
32 #define PCAN_USB_MAX_CHANNEL 2
33
34
35 #define PCAN_USB_MAX_CMD_LEN 32
36
37 struct peak_usb_device;
38
39
40 struct peak_usb_adapter {
41 char *name;
42 u32 device_id;
43 u32 ctrlmode_supported;
44 struct can_clock clock;
45 const struct can_bittiming_const * const bittiming_const;
46 const struct can_bittiming_const * const data_bittiming_const;
47 unsigned int ctrl_count;
48
49 int (*intf_probe)(struct usb_interface *intf);
50
51 int (*dev_init)(struct peak_usb_device *dev);
52 void (*dev_exit)(struct peak_usb_device *dev);
53 void (*dev_free)(struct peak_usb_device *dev);
54 int (*dev_open)(struct peak_usb_device *dev);
55 int (*dev_close)(struct peak_usb_device *dev);
56 int (*dev_set_bittiming)(struct peak_usb_device *dev,
57 struct can_bittiming *bt);
58 int (*dev_set_data_bittiming)(struct peak_usb_device *dev,
59 struct can_bittiming *bt);
60 int (*dev_set_bus)(struct peak_usb_device *dev, u8 onoff);
61 int (*dev_get_device_id)(struct peak_usb_device *dev, u32 *device_id);
62 int (*dev_decode_buf)(struct peak_usb_device *dev, struct urb *urb);
63 int (*dev_encode_msg)(struct peak_usb_device *dev, struct sk_buff *skb,
64 u8 *obuf, size_t *size);
65 int (*dev_start)(struct peak_usb_device *dev);
66 int (*dev_stop)(struct peak_usb_device *dev);
67 int (*dev_restart_async)(struct peak_usb_device *dev, struct urb *urb,
68 u8 *buf);
69 int (*do_get_berr_counter)(const struct net_device *netdev,
70 struct can_berr_counter *bec);
71 u8 ep_msg_in;
72 u8 ep_msg_out[PCAN_USB_MAX_CHANNEL];
73 u8 ts_used_bits;
74 u32 ts_period;
75 u8 us_per_ts_shift;
76 u32 us_per_ts_scale;
77
78 int rx_buffer_size;
79 int tx_buffer_size;
80 int sizeof_dev_private;
81 };
82
83 extern const struct peak_usb_adapter pcan_usb;
84 extern const struct peak_usb_adapter pcan_usb_pro;
85 extern const struct peak_usb_adapter pcan_usb_fd;
86 extern const struct peak_usb_adapter pcan_usb_chip;
87 extern const struct peak_usb_adapter pcan_usb_pro_fd;
88 extern const struct peak_usb_adapter pcan_usb_x6;
89
90 struct peak_time_ref {
91 ktime_t tv_host_0, tv_host;
92 u32 ts_dev_1, ts_dev_2;
93 u64 ts_total;
94 u32 tick_count;
95 const struct peak_usb_adapter *adapter;
96 };
97
98 struct peak_tx_urb_context {
99 struct peak_usb_device *dev;
100 u32 echo_index;
101 u8 data_len;
102 struct urb *urb;
103 };
104
105 #define PCAN_USB_STATE_CONNECTED 0x00000001
106 #define PCAN_USB_STATE_STARTED 0x00000002
107
108
109 struct peak_usb_device {
110 struct can_priv can;
111 const struct peak_usb_adapter *adapter;
112 unsigned int ctrl_idx;
113 u32 state;
114
115 struct sk_buff *echo_skb[PCAN_USB_MAX_TX_URBS];
116
117 struct usb_device *udev;
118 struct net_device *netdev;
119
120 atomic_t active_tx_urbs;
121 struct usb_anchor tx_submitted;
122 struct peak_tx_urb_context tx_contexts[PCAN_USB_MAX_TX_URBS];
123
124 u8 *cmd_buf;
125 struct usb_anchor rx_submitted;
126
127 u32 device_number;
128 u8 device_rev;
129
130 u8 ep_msg_in;
131 u8 ep_msg_out;
132
133 u16 bus_load;
134
135 struct peak_usb_device *prev_siblings;
136 struct peak_usb_device *next_siblings;
137 };
138
139 void pcan_dump_mem(char *prompt, void *p, int l);
140
141
142 void peak_usb_init_time_ref(struct peak_time_ref *time_ref,
143 const struct peak_usb_adapter *adapter);
144 void peak_usb_update_ts_now(struct peak_time_ref *time_ref, u32 ts_now);
145 void peak_usb_set_ts_now(struct peak_time_ref *time_ref, u32 ts_now);
146 void peak_usb_get_ts_time(struct peak_time_ref *time_ref, u32 ts, ktime_t *tv);
147 int peak_usb_netif_rx(struct sk_buff *skb,
148 struct peak_time_ref *time_ref, u32 ts_low);
149 void peak_usb_async_complete(struct urb *urb);
150 void peak_usb_restart_complete(struct peak_usb_device *dev);
151
152 #endif