3 #ifdef CONFIG_ARCH_SUNXI
4 #include <asm/arch/usb_phy.h>
7 #include <linux/usb/ch9.h>
8 #include <linux/usb/gadget.h>
11 #include "linux-compat.h"
12 #include "usb-compat.h"
13 #include "musb_core.h"
14 #include "musb_host.h"
15 #include "musb_gadget.h"
17 #ifdef CONFIG_MUSB_HOST
19 struct usb_host_endpoint hep;
23 static struct musb *host;
24 static struct usb_hcd hcd;
25 static enum usb_device_speed host_speed;
27 static void musb_host_complete_urb(struct urb *urb)
29 urb->dev->status &= ~USB_ST_NOT_PROC;
30 urb->dev->act_len = urb->actual_length;
33 static struct usb_host_endpoint hep;
34 static struct urb urb;
36 static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep,
37 struct usb_device *dev, int endpoint_type,
38 unsigned long pipe, void *buffer, int len,
39 struct devrequest *setup, int interval)
41 int epnum = usb_pipeendpoint(pipe);
42 int is_in = usb_pipein(pipe);
44 memset(urb, 0, sizeof(struct urb));
45 memset(hep, 0, sizeof(struct usb_host_endpoint));
46 INIT_LIST_HEAD(&hep->urb_list);
47 INIT_LIST_HEAD(&urb->urb_list);
49 urb->complete = musb_host_complete_urb;
50 urb->status = -EINPROGRESS;
53 urb->transfer_buffer = buffer;
54 urb->transfer_dma = (unsigned long)buffer;
55 urb->transfer_buffer_length = len;
56 urb->setup_packet = (unsigned char *)setup;
58 urb->ep->desc.wMaxPacketSize =
59 __cpu_to_le16(is_in ? dev->epmaxpacketin[epnum] :
60 dev->epmaxpacketout[epnum]);
61 urb->ep->desc.bmAttributes = endpoint_type;
62 urb->ep->desc.bEndpointAddress =
63 (is_in ? USB_DIR_IN : USB_DIR_OUT) | epnum;
64 urb->ep->desc.bInterval = interval;
67 static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
69 struct musb *host = hcd->hcd_priv;
71 unsigned long timeout;
73 ret = musb_urb_enqueue(hcd, urb, 0);
75 printf("Failed to enqueue URB to controller\n");
79 timeout = get_timer(0) + USB_TIMEOUT_MS(urb->pipe);
84 } while (urb->status == -EINPROGRESS &&
85 get_timer(0) < timeout);
87 if (urb->status == -EINPROGRESS)
88 musb_urb_dequeue(hcd, urb, -ETIME);
93 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
94 void *buffer, int len, struct devrequest *setup)
96 construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_CONTROL, pipe,
97 buffer, len, setup, 0);
99 /* Fix speed for non hub-attached devices */
101 dev->speed = host_speed;
103 return submit_urb(&hcd, &urb);
107 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
108 void *buffer, int len)
110 construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_BULK, pipe,
111 buffer, len, NULL, 0);
112 return submit_urb(&hcd, &urb);
115 int submit_int_msg(struct usb_device *dev, unsigned long pipe,
116 void *buffer, int len, int interval)
118 construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_INT, pipe,
119 buffer, len, NULL, interval);
120 return submit_urb(&hcd, &urb);
123 struct int_queue *create_int_queue(struct usb_device *dev, unsigned long pipe,
124 int queuesize, int elementsize, void *buffer, int interval)
126 struct int_queue *queue;
127 int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe);
129 if (queuesize != 1) {
130 printf("ERROR musb int-queues only support queuesize 1\n");
134 if (dev->int_pending & (1 << index)) {
135 printf("ERROR int-urb is already pending on pipe %lx\n", pipe);
139 queue = malloc(sizeof(*queue));
143 construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT,
144 pipe, buffer, elementsize, NULL, interval);
146 ret = musb_urb_enqueue(&hcd, &queue->urb, 0);
148 printf("Failed to enqueue URB to controller\n");
153 dev->int_pending |= 1 << index;
157 int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
159 int index = usb_pipein(queue->urb.pipe) * 16 +
160 usb_pipeendpoint(queue->urb.pipe);
162 if (queue->urb.status == -EINPROGRESS)
163 musb_urb_dequeue(&hcd, &queue->urb, -ETIME);
165 dev->int_pending &= ~(1 << index);
170 void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
172 if (queue->urb.status != -EINPROGRESS)
173 return NULL; /* URB has already completed in a prev. poll */
177 if (queue->urb.status != -EINPROGRESS)
178 return queue->urb.transfer_buffer; /* Done */
180 return NULL; /* URB still pending */
183 int usb_reset_root_port(void)
185 void *mbase = host->mregs;
188 power = musb_readb(mbase, MUSB_POWER);
190 musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
192 #ifdef CONFIG_ARCH_SUNXI
194 * sunxi phy has a bug and it will wrongly detect high speed squelch
195 * when clearing reset on low-speed devices, temporary disable
196 * squelch detection to work around this.
198 sunxi_usb_phy_enable_squelch_detect(0, 0);
200 power = musb_readb(mbase, MUSB_POWER);
201 musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
202 #ifdef CONFIG_ARCH_SUNXI
203 sunxi_usb_phy_enable_squelch_detect(0, 1);
206 host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
208 (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
209 USB_SPEED_FULL : USB_SPEED_LOW;
210 mdelay((host_speed == USB_SPEED_LOW) ? 200 : 50);
215 int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
218 /* USB spec says it may take up to 1 second for a device to connect */
219 unsigned long timeout = get_timer(0) + 1000;
222 printf("MUSB host is not registered\n");
229 if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
231 } while (get_timer(0) < timeout);
232 if (get_timer(0) >= timeout)
235 usb_reset_root_port();
242 int usb_lowlevel_stop(int index)
245 printf("MUSB host is not registered\n");
252 #endif /* CONFIG_MUSB_HOST */
254 #ifdef CONFIG_MUSB_GADGET
255 static struct musb *gadget;
257 int usb_gadget_handle_interrupts(int index)
260 if (!gadget || !gadget->isr)
263 return gadget->isr(0, gadget);
266 int usb_gadget_register_driver(struct usb_gadget_driver *driver)
270 if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind ||
272 printf("bad parameter.\n");
277 printf("Controller uninitialized\n");
281 ret = musb_gadget_start(&gadget->g, driver);
283 printf("gadget_start failed with %d\n", ret);
287 ret = driver->bind(&gadget->g);
289 printf("bind failed with %d\n", ret);
296 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
298 if (driver->disconnect)
299 driver->disconnect(&gadget->g);
301 driver->unbind(&gadget->g);
304 #endif /* CONFIG_MUSB_GADGET */
306 int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
311 switch (plat->mode) {
312 #ifdef CONFIG_MUSB_HOST
317 #ifdef CONFIG_MUSB_GADGET
318 case MUSB_PERIPHERAL:
326 *musbp = musb_init_controller(plat, (struct device *)bdata, ctl_regs);
328 printf("Failed to init the controller\n");