4 #include <linux/usb/ch9.h>
5 #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
16 struct usb_host_endpoint hep;
20 static struct musb *host;
21 static struct usb_hcd hcd;
22 static enum usb_device_speed host_speed;
24 static void musb_host_complete_urb(struct urb *urb)
26 urb->dev->status &= ~USB_ST_NOT_PROC;
27 urb->dev->act_len = urb->actual_length;
30 static struct usb_host_endpoint hep;
31 static struct urb urb;
33 static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep,
34 struct usb_device *dev, int endpoint_type,
35 unsigned long pipe, void *buffer, int len,
36 struct devrequest *setup, int interval)
38 int epnum = usb_pipeendpoint(pipe);
39 int is_in = usb_pipein(pipe);
41 memset(urb, 0, sizeof(struct urb));
42 memset(hep, 0, sizeof(struct usb_host_endpoint));
43 INIT_LIST_HEAD(&hep->urb_list);
44 INIT_LIST_HEAD(&urb->urb_list);
46 urb->complete = musb_host_complete_urb;
47 urb->status = -EINPROGRESS;
50 urb->transfer_buffer = buffer;
51 urb->transfer_dma = (unsigned long)buffer;
52 urb->transfer_buffer_length = len;
53 urb->setup_packet = (unsigned char *)setup;
55 urb->ep->desc.wMaxPacketSize =
56 __cpu_to_le16(is_in ? dev->epmaxpacketin[epnum] :
57 dev->epmaxpacketout[epnum]);
58 urb->ep->desc.bmAttributes = endpoint_type;
59 urb->ep->desc.bEndpointAddress =
60 (is_in ? USB_DIR_IN : USB_DIR_OUT) | epnum;
61 urb->ep->desc.bInterval = interval;
64 static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
66 struct musb *host = hcd->hcd_priv;
68 unsigned long timeout;
70 ret = musb_urb_enqueue(hcd, urb, 0);
72 printf("Failed to enqueue URB to controller\n");
76 timeout = get_timer(0) + USB_TIMEOUT_MS(urb->pipe);
81 } while (urb->status == -EINPROGRESS &&
82 get_timer(0) < timeout);
84 if (urb->status == -EINPROGRESS)
85 musb_urb_dequeue(hcd, urb, -ETIME);
90 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
91 void *buffer, int len, struct devrequest *setup)
93 construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_CONTROL, pipe,
94 buffer, len, setup, 0);
96 /* Fix speed for non hub-attached devices */
98 dev->speed = host_speed;
100 return submit_urb(&hcd, &urb);
104 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
105 void *buffer, int len)
107 construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_BULK, pipe,
108 buffer, len, NULL, 0);
109 return submit_urb(&hcd, &urb);
112 int submit_int_msg(struct usb_device *dev, unsigned long pipe,
113 void *buffer, int len, int interval)
115 construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_INT, pipe,
116 buffer, len, NULL, interval);
117 return submit_urb(&hcd, &urb);
120 struct int_queue *create_int_queue(struct usb_device *dev, unsigned long pipe,
121 int queuesize, int elementsize, void *buffer, int interval)
123 struct int_queue *queue;
124 int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe);
126 if (queuesize != 1) {
127 printf("ERROR musb int-queues only support queuesize 1\n");
131 if (dev->int_pending & (1 << index)) {
132 printf("ERROR int-urb is already pending on pipe %lx\n", pipe);
136 queue = malloc(sizeof(*queue));
140 construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT,
141 pipe, buffer, elementsize, NULL, interval);
143 ret = musb_urb_enqueue(&hcd, &queue->urb, 0);
145 printf("Failed to enqueue URB to controller\n");
150 dev->int_pending |= 1 << index;
154 int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
156 int index = usb_pipein(queue->urb.pipe) * 16 +
157 usb_pipeendpoint(queue->urb.pipe);
159 if (queue->urb.status == -EINPROGRESS)
160 musb_urb_dequeue(&hcd, &queue->urb, -ETIME);
162 dev->int_pending &= ~(1 << index);
167 void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
169 if (queue->urb.status != -EINPROGRESS)
170 return NULL; /* URB has already completed in a prev. poll */
174 if (queue->urb.status != -EINPROGRESS)
175 return queue->urb.transfer_buffer; /* Done */
177 return NULL; /* URB still pending */
180 void usb_reset_root_port(void)
182 void *mbase = host->mregs;
185 power = musb_readb(mbase, MUSB_POWER);
187 musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
189 power = musb_readb(mbase, MUSB_POWER);
190 musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
192 host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
194 (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
195 USB_SPEED_FULL : USB_SPEED_LOW;
196 mdelay((host_speed == USB_SPEED_LOW) ? 200 : 50);
199 int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
202 /* USB spec says it may take up to 1 second for a device to connect */
203 unsigned long timeout = get_timer(0) + 1000;
206 printf("MUSB host is not registered\n");
213 if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
215 } while (get_timer(0) < timeout);
216 if (get_timer(0) >= timeout)
219 usb_reset_root_port();
226 int usb_lowlevel_stop(int index)
229 printf("MUSB host is not registered\n");
236 #endif /* CONFIG_MUSB_HOST */
238 #ifdef CONFIG_MUSB_GADGET
239 static struct musb *gadget;
241 int usb_gadget_handle_interrupts(void)
244 if (!gadget || !gadget->isr)
247 return gadget->isr(0, gadget);
250 int usb_gadget_register_driver(struct usb_gadget_driver *driver)
254 if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind ||
256 printf("bad parameter.\n");
261 printf("Controller uninitialized\n");
265 ret = musb_gadget_start(&gadget->g, driver);
267 printf("gadget_start failed with %d\n", ret);
271 ret = driver->bind(&gadget->g);
273 printf("bind failed with %d\n", ret);
280 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
282 if (driver->disconnect)
283 driver->disconnect(&gadget->g);
285 driver->unbind(&gadget->g);
288 #endif /* CONFIG_MUSB_GADGET */
290 int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
295 switch (plat->mode) {
296 #ifdef CONFIG_MUSB_HOST
301 #ifdef CONFIG_MUSB_GADGET
302 case MUSB_PERIPHERAL:
310 *musbp = musb_init_controller(plat, (struct device *)bdata, ctl_regs);
312 printf("Failed to init the controller\n");