/*
 *  Manuel Jander.
 *
 *  Based on the work of:
 *  Vojtech Pavlik
 *  Raymond Ingles
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
 *
 * Based 90% on Vojtech Pavlik pcigame driver.
 * Merged and modified by Manuel Jander, for the OpenVortex
 * driver. (email: mjander@embedded.cl).
 */

#include <linux/time.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <sound/core.h>
#include "au88x0.h"
#include <linux/gameport.h>
#include <linux/export.h>

#if IS_REACHABLE(CONFIG_GAMEPORT)

#define VORTEX_GAME_DWAIT	20	/* 20 ms */

static unsigned char vortex_game_read(struct gameport *gameport)
{
	vortex_t *vortex = gameport_get_port_data(gameport);
	return hwread(vortex->mmio, VORTEX_GAME_LEGACY);
}

static void vortex_game_trigger(struct gameport *gameport)
{
	vortex_t *vortex = gameport_get_port_data(gameport);
	hwwrite(vortex->mmio, VORTEX_GAME_LEGACY, 0xff);
}

static int
vortex_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
{
	vortex_t *vortex = gameport_get_port_data(gameport);
	int i;

	*buttons = (~hwread(vortex->mmio, VORTEX_GAME_LEGACY) >> 4) & 0xf;

	for (i = 0; i < 4; i++) {
		axes[i] =
		    hwread(vortex->mmio, VORTEX_GAME_AXIS + (i * AXIS_SIZE));
		if (axes[i] == AXIS_RANGE)
			axes[i] = -1;
	}
	return 0;
}

static int vortex_game_open(struct gameport *gameport, int mode)
{
	vortex_t *vortex = gameport_get_port_data(gameport);

	switch (mode) {
	case GAMEPORT_MODE_COOKED:
		hwwrite(vortex->mmio, VORTEX_CTRL2,
			hwread(vortex->mmio,
			       VORTEX_CTRL2) | CTRL2_GAME_ADCMODE);
		msleep(VORTEX_GAME_DWAIT);
		return 0;
	case GAMEPORT_MODE_RAW:
		hwwrite(vortex->mmio, VORTEX_CTRL2,
			hwread(vortex->mmio,
			       VORTEX_CTRL2) & ~CTRL2_GAME_ADCMODE);
		return 0;
	default:
		return -1;
	}

	return 0;
}

static int vortex_gameport_register(vortex_t *vortex)
{
	struct gameport *gp;

	vortex->gameport = gp = gameport_allocate_port();
	if (!gp) {
		dev_err(vortex->card->dev,
			"cannot allocate memory for gameport\n");
		return -ENOMEM;
	}

	gameport_set_name(gp, "AU88x0 Gameport");
	gameport_set_phys(gp, "pci%s/gameport0", pci_name(vortex->pci_dev));
	gameport_set_dev_parent(gp, &vortex->pci_dev->dev);

	gp->read = vortex_game_read;
	gp->trigger = vortex_game_trigger;
	gp->cooked_read = vortex_game_cooked_read;
	gp->open = vortex_game_open;

	gameport_set_port_data(gp, vortex);
	gp->fuzz = 64;

	gameport_register_port(gp);

	return 0;
}

static void vortex_gameport_unregister(vortex_t * vortex)
{
	if (vortex->gameport) {
		gameport_unregister_port(vortex->gameport);
		vortex->gameport = NULL;
	}
}

#else
static inline int vortex_gameport_register(vortex_t * vortex) { return -ENOSYS; }
static inline void vortex_gameport_unregister(vortex_t * vortex) { }
#endif
me='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:54:39 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:54:39 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/keyspan_usa67msg.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>883af14e67e8b8702b5560aa64c888c0cd0bd66c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/serial/keyspan_usa67msg.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>74e3a6b53f5fad9f7848ab1b9f6921b7012940a4</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/serial/keyspan_usa67msg.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>drivers/usb/serial/keyspan_usa67msg.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/keyspan_usa67msg.h?id=0263d4ebd94b36280608e296cba39b924b6e832b'>0263d4ebd94b36280608e296cba39b924b6e832b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/keyspan_usa67msg.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c&amp;id2=0263d4ebd94b36280608e296cba39b924b6e832b'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/keyspan_usa67msg.h?id=aab45453ff5c77200c6da4ac909f7a4392aed17e'>aab45453ff5c77200c6da4ac909f7a4392aed17e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/keyspan_usa67msg.h?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c&amp;id2=aab45453ff5c77200c6da4ac909f7a4392aed17e'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'akpm' (patches from Andrew)</div><div class='commit-msg'>Merge fixes from Andrew Morton:
 "26 fixes"

* emailed patches from Andrew Morton &lt;akpm@linux-foundation.org&gt;: (26 commits)
  MAINTAINERS: add Dan Streetman to zbud maintainers
  MAINTAINERS: add Dan Streetman to zswap maintainers
  mm: do not export ioremap_page_range symbol for external module
  mn10300: fix build error of missing fpu_save()
  romfs: use different way to generate fsid for BLOCK or MTD
  frv: add missing atomic64 operations
  mm, page_alloc: fix premature OOM when racing with cpuset mems update
  mm, page_alloc: move cpuset seqcount checking to slowpath
  mm, page_alloc: fix fast-path race with cpuset update or removal
  mm, page_alloc: fix check for NULL preferred_zone
  kernel/panic.c: add missing \n
  fbdev: color map copying bounds checking
  frv: add atomic64_add_unless()
  mm/mempolicy.c: do not put mempolicy before using its nodemask
  radix-tree: fix private list warnings
  Documentation/filesystems/proc.txt: add VmPin
  mm, memcg: do not retry precharge charges
  proc: add a schedule point in proc_pid_readdir()
  mm: alloc_contig: re-allow CMA to compact FS pages
  mm/slub.c: trace free objects at KERN_INFO
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>Diffstat</a> (limited to 'drivers/usb/serial/keyspan_usa67msg.h')</div><table summary='diffstat' class='diffstat'>