140 lines
3.8 KiB
C
Executable file
140 lines
3.8 KiB
C
Executable file
/*
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* Entry point for USBD service, that handles USB HCDs
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*/
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#include <ddekit/ddekit.h> /* ddekit_init */
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#include <ddekit/thread.h> /* DDEKit threading */
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#include <minix/devman.h> /* Initializing 'devman' */
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#include <minix/sef.h> /* SEF handling */
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#include <usb/usb_common.h>
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#include <usb/usbd_interface.h>
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/*===========================================================================*
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* Local declarations *
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*===========================================================================*/
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static int usbd_sef_handler(int, sef_init_info_t *);
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static int usbd_start(void);
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static void usbd_init(void);
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static void usbd_server_thread(void *);
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/* TODO: No headers for these... */
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extern void ddekit_minix_wait_exit(void); /* dde.c */
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extern void ddekit_usb_server_init(void); /* usb_server.c */
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/*===========================================================================*
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* main *
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*===========================================================================*/
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int
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main(int UNUSED(argc), char * UNUSED(argv[]))
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{
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int ret_val;
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USB_MSG("Starting USBD");
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/* Basic SEF,DDE,... initialization */
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usbd_init();
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/* Assume failure unless usbd_start exits gracefully */
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ret_val = EXIT_FAILURE;
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/* USB host controllers initialization */
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if (EXIT_SUCCESS == usbd_init_hcd()) {
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/* Try initializing 'devman' */
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if (EXIT_SUCCESS == devman_init()) {
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/* Run USB driver (actually DDEKit threads)
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* until this call returns: */
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ret_val = usbd_start();
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} else
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USB_MSG("Initializing devman, failed");
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/* Clean whatever was initialized */
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usbd_deinit_hcd();
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} else
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USB_MSG("Initializing HCDs, failed");
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return ret_val;
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}
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/*===========================================================================*
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* usbd_sef_handler *
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*===========================================================================*/
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static int
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usbd_sef_handler(int type, sef_init_info_t * UNUSED(info))
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{
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DEBUG_DUMP;
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switch (type) {
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case SEF_INIT_FRESH:
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USB_MSG("Initializing");
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return EXIT_SUCCESS;
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case SEF_INIT_LU:
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USB_MSG("Updating, not implemented");
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return EXIT_FAILURE;
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case SEF_INIT_RESTART:
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USB_MSG("Restarting, not implemented");
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return EXIT_FAILURE;
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default:
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USB_MSG("illegal SEF type");
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return EXIT_FAILURE;
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}
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}
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/*===========================================================================*
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* usbd_start *
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*===========================================================================*/
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static int
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usbd_start(void)
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{
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DEBUG_DUMP;
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/* Driver's "main loop" is within DDEKit server thread */
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if (NULL != ddekit_thread_create(usbd_server_thread, NULL, "USBD")) {
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/* This will lock current thread until DDEKit terminates */
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ddekit_minix_wait_exit();
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return EXIT_SUCCESS;
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} else
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return EXIT_FAILURE;
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}
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/*===========================================================================*
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* usbd_init *
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*===========================================================================*/
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static void
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usbd_init(void)
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{
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DEBUG_DUMP;
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/* Set one handler for all messages */
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sef_setcb_init_fresh(usbd_sef_handler);
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sef_setcb_init_lu(usbd_sef_handler);
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sef_setcb_init_restart(usbd_sef_handler);
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/* Initialize DDEkit (involves sef_startup()) */
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ddekit_init();
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}
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/*===========================================================================*
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* usbd_server_thread *
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*===========================================================================*/
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static void
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usbd_server_thread(void * UNUSED(unused))
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{
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DEBUG_DUMP;
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ddekit_usb_server_init();
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}
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