Input: trident (OSS) - do not carry around gameport code if gameport

       core support is disabled, some formatting changes.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 25 insertions, 12 deletions

diff --git a/sound/oss/trident.c b/sound/oss/trident.c
index 47537f0a5b05..5f0ad6bb43b9 100644
--- a/sound/oss/trident.c
+++ b/sound/oss/trident.c
@@ -228,6 +228,10 @@
 
 #define DRIVER_VERSION "0.14.10j-2.6"
 
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+#define SUPPORT_JOYSTICK 1
+#endif
+
 /* magic numbers to protect our data structures */
 #define TRIDENT_CARD_MAGIC      0x5072696E      /* "Prin" */
 #define TRIDENT_STATE_MAGIC     0x63657373      /* "cess" */
@@ -4252,24 +4256,25 @@ trident_ac97_init(struct trident_card *card)
         return num_ac97 + 1;
 }
 
+#ifdef SUPPORT_JOYSTICK
 /* Gameport functions for the cards ADC gameport */
 
-static unsigned char
-trident_game_read(struct gameport *gameport)
+static unsigned char trident_game_read(struct gameport *gameport)
 {
         struct trident_card *card = gameport->port_data;
+
         return inb(TRID_REG(card, T4D_GAME_LEG));
 }
 
-static void
-trident_game_trigger(struct gameport *gameport)
+static void trident_game_trigger(struct gameport *gameport)
 {
         struct trident_card *card = gameport->port_data;
+
         outb(0xff, TRID_REG(card, T4D_GAME_LEG));
 }
 
-static int
-trident_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+static int trident_game_cooked_read(struct gameport *gameport,
+                                    int *axes, int *buttons)
 {
         struct trident_card *card = gameport->port_data;
         int i;
@@ -4285,8 +4290,7 @@ trident_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
         return 0;
 }
 
-static int
-trident_game_open(struct gameport *gameport, int mode)
+static int trident_game_open(struct gameport *gameport, int mode)
 {
         struct trident_card *card = gameport->port_data;
 
@@ -4305,8 +4309,7 @@ trident_game_open(struct gameport *gameport, int mode)
         return 0;
 }
 
-static int __devinit
-trident_register_gameport(struct trident_card *card)
+static int __devinit trident_register_gameport(struct trident_card *card)
 {
         struct gameport *gp;
 
@@ -4330,6 +4333,17 @@ trident_register_gameport(struct trident_card *card)
         return 0;
 }
 
+static inline void trident_unregister_gameport(struct trident_card *card)
+{
+        if (card->gameport)
+                gameport_unregister_port(card->gameport);
+}
+
+#else
+static inline int trident_register_gameport(struct trident_card *card) { return -ENOSYS; }
+static inline void trident_unregister_gameport(struct trident_card *card) { }
+#endif /* SUPPORT_JOYSTICK */
+
 /* install the driver, we do not allocate hardware channel nor DMA buffer */ 
 /* now, they are defered until "ACCESS" time (in prog_dmabuf called by */ 
 /* open/read/write/ioctl/mmap) */
@@ -4569,8 +4583,7 @@ trident_remove(struct pci_dev *pci_dev)
         }
 
         /* Unregister gameport */
-        if (card->gameport)
-                gameport_unregister_port(card->gameport);
+        trident_unregister_gameport(card);
 
         /* Kill interrupts, and SP/DIF */
         trident_disable_loop_interrupts(card);