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Subject[PATCH] Trident 4DWave DX/NX joystick support
Hi!

Right now using the joystick with a trident sound card
on 2.4.x is not possible.

The joystick/pcigame give me tons of problems, like pci resource
conflicts and oops, anyway I'll came back soon with more detailed
data about that...

Forgetting the enhanced game port we can use the old legacy ISA ns558
driver but is a no go because the trident sound driver doesn't enable
that port :(

This patch allow to enable the legacy joystick port on
Trident 4DWave DX/NX.
The patch adds a new trident module param (joystick)
and a new config option.
I didn't try with a monolithic kernel, I hope that joy driver
driver will came after the sound driver..

Before xmas I need to turn my linux server on a X11box ;)

happy gaming,
luca

follow patch against 2.4.17rc2 inspired from a 1999 alsa-devel post:

diff -ur linux/Documentation/Configure.help /usr/src/linux/Documentation/Configure.help
--- linux/Documentation/Configure.help Wed Dec 19 23:17:07 2001
+++ /usr/src/linux/Documentation/Configure.help Wed Dec 19 22:11:34 2001
@@ -18576,7 +18576,7 @@

Enable joystick
CONFIG_SOUND_CMPCI_JOYSTICK
- Say here in order to enable the joystick port on a sound crd using
+ Say Y here in order to enable the joystick port on a sound card using
the CMI8338 or the CMI8738 chipset. Data on these chips are
available at <http://www.cmedia.com.tw/>.

@@ -18702,6 +18702,11 @@
This driver differs slightly from OSS/Free, so PLEASE READ the
comments at the top of <file:drivers/sound/trident.c>.

+Trident Joystick Interface
+CONFIG_SOUND_TRIDENT_JOYSTICK
+ Say Y here in order to enable the joystick interface of the
+ Trident 4D Wave DX or NX.
+
Rockwell WaveArtist
CONFIG_SOUND_WAVEARTIST
Say Y here to include support for the Rockwell WaveArtist sound
diff -ur linux/drivers/sound/Config.in /usr/src/linux/drivers/sound/Config.in
--- linux/drivers/sound/Config.in Wed Dec 19 23:17:11 2001
+++ /usr/src/linux/drivers/sound/Config.in Wed Dec 19 22:07:55 2001
@@ -52,7 +52,9 @@
dep_tristate ' NEC Vrc5477 AC97 sound' CONFIG_SOUND_VRC5477 $CONFIG_SOUND
fi
dep_tristate ' Trident 4DWave DX/NX, SiS 7018 or ALi 5451 PCI Audio Core' CONFIG_SOUND_TRIDENT $CONFIG_SOUND
-
+if [ "$CONFIG_SOUND_TRIDENT" = "y" -o "$CONFIG_SOUND_TRIDENT" = "m" ]; then
+ bool ' Enable trident joystick port' CONFIG_SOUND_TRIDENT_JOYSTICK
+fi
dep_tristate ' Support for Turtle Beach MultiSound Classic, Tahiti, Monterey' CONFIG_SOUND_MSNDCLAS $CONFIG_SOUND
if [ "$CONFIG_SOUND_MSNDCLAS" = "y" -o "$CONFIG_SOUND_MSNDCLAS" = "m" ]; then
if [ "$CONFIG_SOUND_MSNDCLAS" = "y" ]; then
diff -ur linux/drivers/sound/trident.c /usr/src/linux/drivers/sound/trident.c
--- linux/drivers/sound/trident.c Mon Dec 17 14:50:31 2001
+++ /usr/src/linux/drivers/sound/trident.c Wed Dec 19 23:08:27 2001
@@ -36,6 +36,10 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* History
+ *
+ * v0.14.9e
+ * December 20 2001 Luca Montecchiani <m.luca@iname.com>
+ * enable joystick legacy port on Trident 4Dwave DX/NX
* v0.14.9d
* October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* use set_current_state, properly release resources on failure in
@@ -180,7 +184,13 @@

#include <linux/pm.h>

-#define DRIVER_VERSION "0.14.9d"
+#define DRIVER_VERSION "0.14.9e"
+
+#ifdef CONFIG_SOUND_TRIDENT_JOYSTICK
+static int joystick = 1;
+#else
+static int joystick = 0;
+#endif

/* magic numbers to protect our data structures */
#define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */
@@ -4070,6 +4080,14 @@
printk(KERN_ERR "trident: couldn't register DSP device!\n");
goto out_free_irq;
}
+
+ /* enable joystick legacy port by m.luca@iname.com */
+ if ((card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
+ card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) && joystick) {
+ pci_write_config_byte(pci_dev, 0x44, 0x20);
+ printk(KERN_INFO "trident: joystick port enabled.\n");
+ }
+
card->mixer_regs_ready = 0;
/* initialize AC97 codec and register /dev/mixer */
if (trident_ac97_init(card) <= 0) {
@@ -4183,6 +4201,8 @@
pci_set_drvdata(pci_dev, NULL);
}

+MODULE_PARM(joystick, "i");
+MODULE_PARM_DESC(joystick, "(1/0) Enable joystick interface, still need joystick driver");
MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee");
MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI Audio Driver");
MODULE_LICENSE("GPL");
--
----------------------------------------------------------
Luca Montecchiani <m.luca@iname.com>
http://www.geocities.com/montecchiani
SpeakFreely:sflwl -hlwl.fourmilab.ch luca@ ICQ:17655604
-------------------=(Linux since 1995)=-------------------
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