3 #include <linux/usb/ch9.h>
4 #include <linux/usb/gadget.h>
8 #include "linux-compat.h"
9 #include "usb-compat.h"
10 #include "musb_core.h"
11 #include "musb_host.h"
12 #include "musb_gadget.h"
14 #ifdef CONFIG_MUSB_HOST
15 static struct musb *host;
16 static struct usb_hcd hcd;
17 static enum usb_device_speed host_speed;
19 static void musb_host_complete_urb(struct urb *urb)
21 urb->dev->status &= ~USB_ST_NOT_PROC;
22 urb->dev->act_len = urb->actual_length;
25 static struct usb_host_endpoint hep;
26 static struct urb urb;
28 static struct urb *construct_urb(struct usb_device *dev, int endpoint_type,
29 unsigned long pipe, void *buffer, int len,
30 struct devrequest *setup, int interval)
32 int epnum = usb_pipeendpoint(pipe);
33 int is_in = usb_pipein(pipe);
35 memset(&urb, 0, sizeof(struct urb));
36 memset(&hep, 0, sizeof(struct usb_host_endpoint));
37 INIT_LIST_HEAD(&hep.urb_list);
38 INIT_LIST_HEAD(&urb.urb_list);
40 urb.complete = musb_host_complete_urb;
41 urb.status = -EINPROGRESS;
44 urb.transfer_buffer = buffer;
45 urb.transfer_dma = (unsigned long)buffer;
46 urb.transfer_buffer_length = len;
47 urb.setup_packet = (unsigned char *)setup;
49 urb.ep->desc.wMaxPacketSize =
50 __cpu_to_le16(is_in ? dev->epmaxpacketin[epnum] :
51 dev->epmaxpacketout[epnum]);
52 urb.ep->desc.bmAttributes = endpoint_type;
53 urb.ep->desc.bEndpointAddress =
54 (is_in ? USB_DIR_IN : USB_DIR_OUT) | epnum;
55 urb.ep->desc.bInterval = interval;
60 #define MUSB_HOST_TIMEOUT 0x3ffffff
62 static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
64 struct musb *host = hcd->hcd_priv;
68 ret = musb_urb_enqueue(hcd, urb, 0);
70 printf("Failed to enqueue URB to controller\n");
74 timeout = MUSB_HOST_TIMEOUT;
79 } while ((urb->dev->status & USB_ST_NOT_PROC) && --timeout);
84 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
85 void *buffer, int len, struct devrequest *setup)
87 struct urb *urb = construct_urb(dev, USB_ENDPOINT_XFER_CONTROL, pipe,
88 buffer, len, setup, 0);
90 /* Fix speed for non hub-attached devices */
92 dev->speed = host_speed;
94 return submit_urb(&hcd, urb);
98 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
99 void *buffer, int len)
101 struct urb *urb = construct_urb(dev, USB_ENDPOINT_XFER_BULK, pipe,
102 buffer, len, NULL, 0);
103 return submit_urb(&hcd, urb);
106 int submit_int_msg(struct usb_device *dev, unsigned long pipe,
107 void *buffer, int len, int interval)
109 struct urb *urb = construct_urb(dev, USB_ENDPOINT_XFER_INT, pipe,
110 buffer, len, NULL, interval);
111 return submit_urb(&hcd, urb);
114 int usb_lowlevel_init(int index, void **controller)
118 int timeout = MUSB_HOST_TIMEOUT;
121 printf("MUSB host is not registered\n");
128 if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
134 power = musb_readb(mbase, MUSB_POWER);
135 musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
137 power = musb_readb(mbase, MUSB_POWER);
138 musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
140 host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
142 (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
143 USB_SPEED_FULL : USB_SPEED_LOW;
150 int usb_lowlevel_stop(int index)
153 printf("MUSB host is not registered\n");
160 #endif /* CONFIG_MUSB_HOST */
162 #ifdef CONFIG_MUSB_GADGET
163 static struct musb *gadget;
165 int usb_gadget_handle_interrupts(void)
167 if (!gadget || !gadget->isr)
170 return gadget->isr(0, gadget);
173 int usb_gadget_register_driver(struct usb_gadget_driver *driver)
177 if (!driver || driver->speed < USB_SPEED_HIGH || !driver->bind ||
179 printf("bad parameter.\n");
184 printf("Controller uninitialized\n");
188 ret = musb_gadget_start(&gadget->g, driver);
190 printf("gadget_start failed with %d\n", ret);
194 ret = driver->bind(&gadget->g);
196 printf("bind failed with %d\n", ret);
203 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
205 /* TODO: implement me */
208 #endif /* CONFIG_MUSB_GADGET */
210 int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
215 switch (plat->mode) {
216 #ifdef CONFIG_MUSB_HOST
221 #ifdef CONFIG_MUSB_GADGET
222 case MUSB_PERIPHERAL:
230 *musbp = musb_init_controller(plat, (struct device *)bdata, ctl_regs);
232 printf("Failed to init the controller\n");