Update usb host driver as in Axis SDK2.20
SVN-Revision: 14409
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4985
target/linux/etrax/files/drivers/usb/host/hc-crisv10.c
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4985
target/linux/etrax/files/drivers/usb/host/hc-crisv10.c
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@ -4,131 +4,175 @@
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#include <linux/types.h>
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/list.h>
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typedef struct USB_IN_Desc {
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struct USB_IN_Desc {
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volatile __u16 sw_len;
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volatile __u16 sw_len;
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volatile __u16 command;
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volatile __u16 command;
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volatile unsigned long next;
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volatile unsigned long next;
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volatile unsigned long buf;
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volatile unsigned long buf;
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volatile __u16 hw_len;
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volatile __u16 hw_len;
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volatile __u16 status;
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volatile __u16 status;
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} USB_IN_Desc_t;
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typedef struct USB_SB_Desc {
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volatile __u16 sw_len;
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volatile __u16 command;
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volatile unsigned long next;
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volatile unsigned long buf;
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__u32 dummy;
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} USB_SB_Desc_t;
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typedef struct USB_EP_Desc {
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volatile __u16 hw_len;
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volatile __u16 command;
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volatile unsigned long sub;
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volatile unsigned long next;
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__u32 dummy;
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} USB_EP_Desc_t;
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struct virt_root_hub {
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int devnum;
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void *urb;
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void *int_addr;
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int send;
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int interval;
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int numports;
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struct timer_list rh_int_timer;
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volatile __u16 wPortChange_1;
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volatile __u16 wPortChange_2;
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volatile __u16 prev_wPortStatus_1;
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volatile __u16 prev_wPortStatus_2;
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};
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};
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struct etrax_usb_intr_traffic {
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struct USB_SB_Desc {
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int sleeping;
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volatile __u16 sw_len;
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int error;
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volatile __u16 command;
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struct wait_queue *wq;
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volatile unsigned long next;
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volatile unsigned long buf;
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};
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struct USB_EP_Desc {
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volatile __u16 hw_len;
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volatile __u16 command;
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volatile unsigned long sub;
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volatile unsigned long next;
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};
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/* Root Hub port status struct */
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struct crisv10_rh {
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volatile __u16 wPortChange[2];
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volatile __u16 wPortStatusPrev[2];
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};
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/* HCD description */
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struct crisv10_hcd {
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spinlock_t lock;
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__u8 num_ports;
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__u8 running;
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};
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/* Endpoint HC private data description */
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struct crisv10_ep_priv {
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int epid;
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};
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/* Additional software state info for a USB Controller epid */
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struct etrax_epid {
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__u8 inuse; /* !0 = setup in Etrax and used for a endpoint */
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__u8 disabled; /* !0 = Temporarly disabled to avoid resubmission */
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__u8 type; /* Setup as: PIPE_BULK, PIPE_CONTROL ... */
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__u8 out_traffic; /* !0 = This epid is for out traffic */
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};
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/* Struct to hold information of scheduled later URB completion */
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struct urb_later_data {
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struct delayed_work dws;
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struct usb_hcd *hcd;
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struct urb *urb;
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int urb_num;
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int status;
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};
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};
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typedef struct etrax_usb_hc {
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struct usb_bus *bus;
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struct virt_root_hub rh;
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struct etrax_usb_intr_traffic intr;
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} etrax_hc_t;
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typedef enum {
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typedef enum {
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STARTED,
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STARTED,
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NOT_STARTED,
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NOT_STARTED,
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UNLINK,
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UNLINK,
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TRANSFER_DONE,
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} crisv10_urb_state_t;
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WAITING_FOR_DESCR_INTR
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} etrax_usb_urb_state_t;
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struct crisv10_urb_priv {
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/* Sequence number for this URB. Every new submited URB gets this from
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a incrementing counter. Used when a URB is scheduled for later finish to
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be sure that the intended URB hasn't already been completed (device
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drivers has a tendency to reuse URBs once they are completed, causing us
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to not be able to single old ones out only based on the URB pointer.) */
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__u32 urb_num;
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typedef struct etrax_usb_urb_priv {
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/* The first_sb field is used for freeing all SB descriptors belonging
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/* The first_sb field is used for freeing all SB descriptors belonging
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to an urb. The corresponding ep descriptor's sub pointer cannot be
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to an urb. The corresponding ep descriptor's sub pointer cannot be
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used for this since the DMA advances the sub pointer as it processes
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used for this since the DMA advances the sub pointer as it processes
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the sb list. */
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the sb list. */
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struct USB_SB_Desc *first_sb;
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USB_SB_Desc_t *first_sb;
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/* The last_sb field referes to the last SB descriptor that belongs to
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this urb. This is important to know so we can free the SB descriptors
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that ranges between first_sb and last_sb. */
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USB_SB_Desc_t *last_sb;
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/* The rx_offset field is used in ctrl and bulk traffic to keep track
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/* The last_sb field referes to the last SB descriptor that belongs to
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of the offset in the urb's transfer_buffer where incoming data should be
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this urb. This is important to know so we can free the SB descriptors
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copied to. */
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that ranges between first_sb and last_sb. */
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__u32 rx_offset;
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struct USB_SB_Desc *last_sb;
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/* The rx_offset field is used in ctrl and bulk traffic to keep track
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of the offset in the urb's transfer_buffer where incoming data should be
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copied to. */
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__u32 rx_offset;
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/* Counter used in isochronous transfers to keep track of the
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number of packets received/transmitted. */
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__u32 isoc_packet_counter;
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/* Counter used in isochronous transfers to keep track of the
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/* Flag that marks if this Isoc Out URB has finished it's transfer. Used
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number of packets received/transmitted. */
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because several URBs can be finished before list is processed */
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__u32 isoc_packet_counter;
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__u8 isoc_out_done;
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/* This field is used to pass information about the urb's current state
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between the various interrupt handlers (thus marked volatile). */
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volatile crisv10_urb_state_t urb_state;
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/* In Ctrl transfers consist of (at least) 3 packets: SETUP, IN and ZOUT.
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When DMA8 sub-channel 2 has processed the SB list for this sequence we
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get a interrupt. We also get a interrupt for In transfers and which
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one of these interrupts that comes first depends of data size and device.
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To be sure that we have got both interrupts before we complete the URB
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we have these to flags that shows which part that has completed.
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We can then check when we get one of the interrupts that if the other has
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occured it's safe for us to complete the URB, otherwise we set appropriate
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flag and do the completion when we get the other interrupt. */
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volatile unsigned char ctrl_zout_done;
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volatile unsigned char ctrl_rx_done;
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/* This field is used to pass information about the urb's current state between
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/* Connection between the submitted urb and ETRAX epid number */
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the various interrupt handlers (thus marked volatile). */
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__u8 epid;
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volatile etrax_usb_urb_state_t urb_state;
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/* The rx_data_list field is used for periodic traffic, to hold
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received data for later processing in the the complete_urb functions,
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where the data us copied to the urb's transfer_buffer. Basically, we
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use this intermediate storage because we don't know when it's safe to
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reuse the transfer_buffer (FIXME?). */
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struct list_head rx_data_list;
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/* Connection between the submitted urb and ETRAX epid number */
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__u8 epid;
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/* The rx_data_list field is used for periodic traffic, to hold
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/* The interval time rounded up to closest 2^N */
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received data for later processing in the the complete_urb functions,
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int interval;
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where the data us copied to the urb's transfer_buffer. Basically, we
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use this intermediate storage because we don't know when it's safe to
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reuse the transfer_buffer (FIXME?). */
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struct list_head rx_data_list;
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} etrax_urb_priv_t;
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/* This struct is for passing data from the top half to the bottom half. */
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/* Pool of EP descriptors needed if it's a INTR transfer.
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typedef struct usb_interrupt_registers
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Amount of EPs in pool correspons to how many INTR that should
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{
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be inserted in TxIntrEPList (max 128, defined by MAX_INTR_INTERVAL) */
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etrax_hc_t *hc;
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struct USB_EP_Desc* intr_ep_pool[128];
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__u32 r_usb_epid_attn;
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__u8 r_usb_status;
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__u16 r_usb_rh_port_status_1;
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__u16 r_usb_rh_port_status_2;
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__u32 r_usb_irq_mask_read;
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__u32 r_usb_fm_number;
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struct work_struct usb_bh;
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} usb_interrupt_registers_t;
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/* This struct is for passing data from the isoc top half to the isoc bottom half. */
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/* The mount of EPs allocated for this INTR URB */
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typedef struct usb_isoc_complete_data
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int intr_ep_pool_length;
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{
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struct urb *urb;
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struct work_struct usb_bh;
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} usb_isoc_complete_data_t;
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/* This struct holds data we get from the rx descriptors for DMA channel 9
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/* Pointer to info struct if URB is scheduled to be finished later */
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for periodic traffic (intr and isoc). */
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struct urb_later_data* later_data;
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typedef struct rx_data
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{
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void *data;
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int length;
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struct list_head list;
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} rx_data_t;
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/* Allocated bandwidth for isochronous and interrupt traffic */
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int bandwidth;
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};
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/* This struct is for passing data from the top half to the bottom half irq
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handlers */
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struct crisv10_irq_reg {
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struct usb_hcd* hcd;
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__u32 r_usb_epid_attn;
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__u8 r_usb_status;
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__u16 r_usb_rh_port_status_1;
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__u16 r_usb_rh_port_status_2;
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__u32 r_usb_irq_mask_read;
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__u32 r_usb_fm_number;
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struct work_struct usb_bh;
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};
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/* This struct is for passing data from the isoc top half to the isoc bottom
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half. */
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struct crisv10_isoc_complete_data {
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struct usb_hcd *hcd;
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struct urb *urb;
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struct work_struct usb_bh;
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};
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/* Entry item for URB lists for each endpint */
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typedef struct urb_entry
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typedef struct urb_entry
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{
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{
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struct urb *urb;
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struct urb *urb;
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
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