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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-06-27 18:57:01 -0400
committerAndi Kleen <andi@basil.nowhere.org>2008-07-16 17:27:06 -0400
commit57fd51a8be26921b56747ddd09d1d9e01c11c9e0 (patch)
tree8b34c3d57867a217cfabf09a73a1af19242bdc7b /include/linux/pnp.h
parentf61ed7e32d2d6a0a8c3c101da513ccedd542e14d (diff)
PNP: add pnp_possible_config() -- can a device could be configured this way?
As part of a heuristic to identify modem devices, 8250_pnp.c checks to see whether a device can be configured at any of the legacy COM port addresses. This patch moves the code that traverses the PNP "possible resource options" from 8250_pnp.c to the PNP subsystem. This encapsulation is important because a future patch will change the implementation of those resource options. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux/pnp.h')
-rw-r--r--include/linux/pnp.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index dfaa567e04a8..e033e1b14c27 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -479,6 +479,8 @@ void pnp_unregister_card_driver(struct pnp_card_driver *drv);
479extern struct list_head pnp_cards; 479extern struct list_head pnp_cards;
480 480
481/* resource management */ 481/* resource management */
482int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
483 resource_size_t size);
482int pnp_auto_config_dev(struct pnp_dev *dev); 484int pnp_auto_config_dev(struct pnp_dev *dev);
483int pnp_start_dev(struct pnp_dev *dev); 485int pnp_start_dev(struct pnp_dev *dev);
484int pnp_stop_dev(struct pnp_dev *dev); 486int pnp_stop_dev(struct pnp_dev *dev);
@@ -506,6 +508,9 @@ static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return
506static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { } 508static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
507 509
508/* resource management */ 510/* resource management */
511static inline int pnp_possible_config(struct pnp_dev *dev, int type,
512 resource_size_t base,
513 resource_size_t size) { return 0; }
509static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; } 514static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
510static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; } 515static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
511static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; } 516static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }