#include <linux/debugfs.h>
#include <asm/unaligned.h>
-#include "es2.h"
#include "greybus.h"
#include "kernel_ver.h"
#include "connection.h"
*/
#define NUM_CPORT_OUT_URB (8 * NUM_BULKS)
-/* vendor request APB1 log */
-#define REQUEST_LOG 0x02
-
-/* vendor request to map a cport to bulk in and bulk out endpoints */
-#define REQUEST_EP_MAPPING 0x03
-
-/* vendor request to get the number of cports available */
-#define REQUEST_CPORT_COUNT 0x04
-
-/* vendor request to reset a cport state */
-#define REQUEST_RESET_CPORT 0x05
-
-/* vendor request to time the latency of messages on a given cport */
-#define REQUEST_LATENCY_TAG_EN 0x06
-#define REQUEST_LATENCY_TAG_DIS 0x07
-
-/* vendor request to control the CSI transmitter */
-#define REQUEST_CSI_TX_CONTROL 0x08
-
/*
* @endpoint: bulk in endpoint for CPort data
* @urb: array of urbs for the CPort in messages
__u8 endpoint_out;
};
-struct es2_ap_csi_config_request {
- u8 csi_id;
- u8 clock_mode;
- u8 num_lanes;
- u8 padding;
- __le32 bus_freq;
-} __attribute__((__packed__));
-
static inline struct es2_ap_dev *hd_to_es2(struct gb_host_device *hd)
{
return (struct es2_ap_dev *)&hd->hd_priv;
retval = usb_control_msg(es2->usb_dev,
usb_sndctrlpipe(es2->usb_dev, 0),
- REQUEST_EP_MAPPING,
+ GB_APB_REQUEST_EP_MAPPING,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
0x00, 0x00,
(char *)cport_to_ep,
}
#endif
-int es2_ap_csi_setup(struct gb_host_device *hd, bool start,
- struct es2_ap_csi_config *cfg)
+static int output_sync(struct es2_ap_dev *es2, void *req, u16 size, u8 cmd)
{
- struct es2_ap_csi_config_request *cfg_req;
- struct es2_ap_dev *es2 = hd_to_es2(hd);
struct usb_device *udev = es2->usb_dev;
+ u8 *data;
int retval;
- cfg_req = kzalloc(sizeof(*cfg_req), GFP_KERNEL);
- if (!cfg_req)
+ data = kmalloc(size, GFP_KERNEL);
+ if (!data)
return -ENOMEM;
-
- cfg_req->csi_id = cfg->csi_id;
-
- if (start) {
- cfg_req->clock_mode = cfg->clock_mode;
- cfg_req->num_lanes = cfg->num_lanes;
- cfg_req->bus_freq = cpu_to_le32(cfg->bus_freq);
- }
+ memcpy(data, req, size);
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- REQUEST_CSI_TX_CONTROL,
+ cmd,
USB_DIR_OUT | USB_TYPE_VENDOR |
- USB_RECIP_INTERFACE, 0, 0, cfg_req,
- sizeof(*cfg_req), ES2_TIMEOUT);
+ USB_RECIP_INTERFACE,
+ 0, 0, data, size, ES2_TIMEOUT);
if (retval < 0)
- dev_err(&udev->dev, "failed to setup csi: %d\n", retval);
+ dev_err(&udev->dev, "%s: return error %d\n", __func__, retval);
+ else
+ retval = 0;
- kfree(cfg_req);
+ kfree(data);
+ return retval;
+}
+
+static void ap_urb_complete(struct urb *urb)
+{
+ struct usb_ctrlrequest *dr = urb->context;
+
+ kfree(dr);
+ usb_free_urb(urb);
+}
+
+static int output_async(struct es2_ap_dev *es2, void *req, u16 size, u8 cmd)
+{
+ struct usb_device *udev = es2->usb_dev;
+ struct urb *urb;
+ struct usb_ctrlrequest *dr;
+ u8 *buf;
+ int retval;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ dr = kmalloc(sizeof(*dr) + size, GFP_ATOMIC);
+ if (!dr) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ buf = (u8 *)dr + sizeof(*dr);
+ memcpy(buf, req, size);
+
+ dr->bRequest = cmd;
+ dr->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE;
+ dr->wValue = 0;
+ dr->wIndex = 0;
+ dr->wLength = cpu_to_le16(size);
+
+ usb_fill_control_urb(urb, udev, usb_sndctrlpipe(udev, 0),
+ (unsigned char *)dr, buf, size,
+ ap_urb_complete, dr);
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval) {
+ usb_free_urb(urb);
+ kfree(dr);
+ }
return retval;
}
-EXPORT_SYMBOL_GPL(es2_ap_csi_setup);
+
+static int output(struct gb_host_device *hd, void *req, u16 size, u8 cmd,
+ bool async)
+{
+ struct es2_ap_dev *es2 = hd_to_es2(hd);
+
+ if (async)
+ return output_async(es2, req, size, cmd);
+
+ return output_sync(es2, req, size, cmd);
+}
static int es2_cport_in_enable(struct es2_ap_dev *es2,
struct es2_cport_in *cport_in)
int retval;
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- REQUEST_RESET_CPORT,
+ GB_APB_REQUEST_RESET_CPORT,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE, cport_id, 0,
NULL, 0, ES2_TIMEOUT);
}
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- REQUEST_LATENCY_TAG_EN,
+ GB_APB_REQUEST_LATENCY_TAG_EN,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE, cport_id, 0, NULL,
0, ES2_TIMEOUT);
}
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- REQUEST_LATENCY_TAG_DIS,
+ GB_APB_REQUEST_LATENCY_TAG_DIS,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE, cport_id, 0, NULL,
0, ES2_TIMEOUT);
return retval;
}
+static int fct_flow_enable(struct gb_host_device *hd, u16 cport_id)
+{
+ int retval;
+ struct es2_ap_dev *es2 = hd_to_es2(hd);
+ struct usb_device *udev = es2->usb_dev;
+
+ retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ GB_APB_REQUEST_FCT_FLOW_EN,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_INTERFACE, cport_id, 0, NULL,
+ 0, ES2_TIMEOUT);
+ if (retval < 0)
+ dev_err(&udev->dev, "Cannot enable FCT flow for cport %u: %d\n",
+ cport_id, retval);
+ return retval;
+}
+
+static int fct_flow_disable(struct gb_host_device *hd, u16 cport_id)
+{
+ int retval;
+ struct es2_ap_dev *es2 = hd_to_es2(hd);
+ struct usb_device *udev = es2->usb_dev;
+
+ retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ GB_APB_REQUEST_FCT_FLOW_DIS,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_INTERFACE, cport_id, 0, NULL,
+ 0, ES2_TIMEOUT);
+ if (retval < 0)
+ dev_err(&udev->dev,
+ "Cannot disable FCT flow for cport %u: %d\n",
+ cport_id, retval);
+ return retval;
+}
+
static struct gb_hd_driver es2_driver = {
.hd_priv_size = sizeof(struct es2_ap_dev),
.message_send = message_send,
.cport_enable = cport_enable,
.latency_tag_enable = latency_tag_enable,
.latency_tag_disable = latency_tag_disable,
+ .output = output,
+ .fct_flow_enable = fct_flow_enable,
+ .fct_flow_disable = fct_flow_disable,
};
/* Common function to report consistent warnings based on URB status */
do {
retval = usb_control_msg(es2->usb_dev,
usb_rcvctrlpipe(es2->usb_dev, 0),
- REQUEST_LOG,
+ GB_APB_REQUEST_LOG,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
0x00, 0x00,
buf,
int retval;
__le16 *cport_count;
- cport_count = kmalloc(sizeof(*cport_count), GFP_KERNEL);
+ cport_count = kzalloc(sizeof(*cport_count), GFP_KERNEL);
if (!cport_count)
return -ENOMEM;
retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- REQUEST_CPORT_COUNT,
+ GB_APB_REQUEST_CPORT_COUNT,
USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE, 0, 0, cport_count,
sizeof(*cport_count), ES2_TIMEOUT);
- if (retval < 0) {
+ if (retval != sizeof(*cport_count)) {
dev_err(&udev->dev, "Cannot retrieve CPort count: %d\n",
retval);
+
+ if (retval >= 0)
+ retval = -EIO;
+
goto out;
}
projects / linux-2.6-microblaze.git / blobdiff