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can: peak_usb: export pcan_usb_pro functions
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Add support for the following new PEAK-System technik CANFD USB adapters:

PCAN-USB FD             single CANFD channel USB adapter
PCAN-USB Pro FD         dual CANFD channels USB adapter

The communication protocol has been developed using some mechanisms that
did exist in the PCAN-USB Pro, thus, this patch also changes some
previously static functions and data into global ones.

Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Stephane Grosjean authored and Marc Kleine-Budde committed Jan 28, 2015
1 parent 2b0861e commit 1114be1
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Showing 2 changed files with 17 additions and 12 deletions.
16 changes: 4 additions & 12 deletions drivers/net/can/usb/peak_usb/pcan_usb_pro.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,14 +27,6 @@

MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB Pro adapter");

/* PCAN-USB Pro Endpoints */
#define PCAN_USBPRO_EP_CMDOUT 1
#define PCAN_USBPRO_EP_CMDIN (PCAN_USBPRO_EP_CMDOUT | USB_DIR_IN)
#define PCAN_USBPRO_EP_MSGOUT_0 2
#define PCAN_USBPRO_EP_MSGIN (PCAN_USBPRO_EP_MSGOUT_0 | USB_DIR_IN)
#define PCAN_USBPRO_EP_MSGOUT_1 3
#define PCAN_USBPRO_EP_UNUSED (PCAN_USBPRO_EP_MSGOUT_1 | USB_DIR_IN)

#define PCAN_USBPRO_CHANNEL_COUNT 2

/* PCAN-USB Pro adapter internal clock (MHz) */
Expand Down Expand Up @@ -322,8 +314,8 @@ static int pcan_usb_pro_wait_rsp(struct peak_usb_device *dev,
return (i >= PCAN_USBPRO_RSP_SUBMIT_MAX) ? -ERANGE : err;
}

static int pcan_usb_pro_send_req(struct peak_usb_device *dev, int req_id,
int req_value, void *req_addr, int req_size)
int pcan_usb_pro_send_req(struct peak_usb_device *dev, int req_id,
int req_value, void *req_addr, int req_size)
{
int err;
u8 req_type;
Expand Down Expand Up @@ -475,7 +467,7 @@ static int pcan_usb_pro_set_bittiming(struct peak_usb_device *dev,
return pcan_usb_pro_set_bitrate(dev, ccbt);
}

static void pcan_usb_pro_restart_complete(struct urb *urb)
void pcan_usb_pro_restart_complete(struct urb *urb)
{
/* can delete usb resources */
peak_usb_async_complete(urb);
Expand Down Expand Up @@ -978,7 +970,7 @@ static void pcan_usb_pro_free(struct peak_usb_device *dev)
/*
* probe function for new PCAN-USB Pro usb interface
*/
static int pcan_usb_pro_probe(struct usb_interface *intf)
int pcan_usb_pro_probe(struct usb_interface *intf)
{
struct usb_host_interface *if_desc;
int i;
Expand Down
13 changes: 13 additions & 0 deletions drivers/net/can/usb/peak_usb/pcan_usb_pro.h
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,14 @@
#define PCAN_USBPRO_INFO_BL 0
#define PCAN_USBPRO_INFO_FW 1

/* PCAN-USB Pro (FD) Endpoints */
#define PCAN_USBPRO_EP_CMDOUT 1
#define PCAN_USBPRO_EP_CMDIN (PCAN_USBPRO_EP_CMDOUT | USB_DIR_IN)
#define PCAN_USBPRO_EP_MSGOUT_0 2
#define PCAN_USBPRO_EP_MSGIN (PCAN_USBPRO_EP_MSGOUT_0 | USB_DIR_IN)
#define PCAN_USBPRO_EP_MSGOUT_1 3
#define PCAN_USBPRO_EP_UNUSED (PCAN_USBPRO_EP_MSGOUT_1 | USB_DIR_IN)

/* Vendor Request value for XXX_FCT */
#define PCAN_USBPRO_FCT_DRVLD 5 /* tell device driver is loaded */
#define PCAN_USBPRO_FCT_DRVLD_REQ_LEN 16
Expand Down Expand Up @@ -176,4 +184,9 @@ union pcan_usb_pro_rec {
struct pcan_usb_pro_txmsg tx_msg;
};

int pcan_usb_pro_probe(struct usb_interface *intf);
int pcan_usb_pro_send_req(struct peak_usb_device *dev, int req_id,
int req_value, void *req_addr, int req_size);
void pcan_usb_pro_restart_complete(struct urb *urb);

#endif

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