lser_att.c 2.7 KB

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  1. /*
  2. * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
  3. * The President and Fellows of Harvard College.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions
  7. * are met:
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. * 3. Neither the name of the University nor the names of its contributors
  14. * may be used to endorse or promote products derived from this software
  15. * without specific prior written permission.
  16. *
  17. * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
  18. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20. * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
  21. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27. * SUCH DAMAGE.
  28. */
  29. #include <types.h>
  30. #include <lib.h>
  31. #include <lamebus/lamebus.h>
  32. #include <lamebus/lser.h>
  33. #include "autoconf.h"
  34. /* Lowest revision we support */
  35. #define LOW_VERSION 1
  36. /* Highest revision we support */
  37. #define HIGH_VERSION 1
  38. /*
  39. * wrappers to satisfy the type system
  40. */
  41. static
  42. void
  43. do_lamebus_mask_interrupt(void *bus, uint32_t buspos)
  44. {
  45. struct lamebus_softc *lb = bus;
  46. lamebus_mask_interrupt(lb, buspos);
  47. }
  48. static
  49. void
  50. do_lamebus_unmask_interrupt(void *bus, uint32_t buspos)
  51. {
  52. struct lamebus_softc *lb = bus;
  53. lamebus_unmask_interrupt(lb, buspos);
  54. }
  55. /*
  56. * attachment function
  57. */
  58. struct lser_softc *
  59. attach_lser_to_lamebus(int lserno, struct lamebus_softc *sc)
  60. {
  61. struct lser_softc *ls;
  62. int slot = lamebus_probe(sc, LB_VENDOR_CS161, LBCS161_SERIAL,
  63. LOW_VERSION, HIGH_VERSION);
  64. if (slot < 0) {
  65. return NULL;
  66. }
  67. ls = kmalloc(sizeof(struct lser_softc));
  68. if (ls==NULL) {
  69. return NULL;
  70. }
  71. (void)lserno; // unused
  72. ls->ls_busdata = sc;
  73. ls->ls_buspos = slot;
  74. ls->ls_maskinterrupt = do_lamebus_mask_interrupt;
  75. ls->ls_unmaskinterrupt = do_lamebus_unmask_interrupt;
  76. lamebus_mark(sc, slot);
  77. lamebus_attach_interrupt(sc, slot, ls, lser_irq);
  78. return ls;
  79. }