src/drivers/usb/ehci_debug.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef _EHCI_DEBUG_H_
   4 #define _EHCI_DEBUG_H_
   5
   6 #include <types.h>
   7
   8 void usbdebug_re_enable(uintptr_t ehci_base);
   9 void usbdebug_disable(void);
  10
  11 /* Returns 0 on success and sets MMIO base and dbg_offset if EHCI debug
  12  * capability was found and enabled. Returns non-zero on error.
  13  */
  14 int ehci_debug_hw_enable(unsigned int *base, unsigned int *dbg_offset);
  15 void ehci_debug_select_port(unsigned int port);
  16
  17 #define DBGP_EP_VALID           (1<<0)
  18 #define DBGP_EP_ENABLED         (1<<1)
  19 #define DBGP_EP_BUSY            (1<<2)
  20 #define DBGP_EP_NOT_PRESENT     (1<<3)
  21 #define DBGP_EP_STATMASK        (DBGP_EP_VALID | DBGP_EP_ENABLED)
  22
  23 #define DBGP_MAX_ENDPOINTS      4
  24 #define DBGP_SETUP_EP0          0       /* Compulsory endpoint 0. */
  25 #define DBGP_CONSOLE_EPOUT      1
  26 #define DBGP_CONSOLE_EPIN       2
  27
  28 struct ehci_dbg_port;
  29
  30 struct dbgp_pipe
  31 {
  32         u8 devnum;
  33         u8 endpoint;
  34         u8 pid;
  35         u8 status;
  36         u16 timeout;
  37
  38         u8 bufidx;
  39         u8 buflen;
  40         char buf[8];
  41 } __packed;
  42
  43 void dbgp_put(struct dbgp_pipe *pipe);
  44 int dbgp_try_get(struct dbgp_pipe *pipe);
  45
  46 struct dbgp_pipe *dbgp_console_output(void);
  47 struct dbgp_pipe *dbgp_console_input(void);
  48 int dbgp_ep_is_active(struct dbgp_pipe *pipe);
  49 int dbgp_bulk_write_x(struct dbgp_pipe *pipe, const char *bytes, int size);
  50 int dbgp_bulk_read_x(struct dbgp_pipe *pipe, void *data, int size);
  51
  52 int dbgp_control_msg(struct ehci_dbg_port *ehci_debug, unsigned int devnum,
  53         int requesttype, int request, int value, int index, void *data, int size);
  54 void dbgp_mdelay(int ms);
  55
  56 int dbgp_probe_gadget(struct ehci_dbg_port *ehci_debug, struct dbgp_pipe *pipe);
  57
  58 #endif /* _EHCI_DEBUG_H_ */