323 lines
9 KiB
C
323 lines
9 KiB
C
|
/*
|
||
|
|
The all defines and part of code (such as cs461x_*) are
|
||
|
|
contributed from ALSA 0.5.8 sources.
|
||
|
|
See http://www.alsa-project.org/ for sources
|
||
|
|
|
||
|
|
Tested on Linux 686 2.4.0-test9, ALSA 0.5.8a and CS4610
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/ioport.h>
|
||
|
|
#include <linux/config.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/gameport.h>
|
||
|
|
#include <linux/slab.h>
|
||
|
|
#include <linux/pci.h>
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Victor Krapivin");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
|
||
|
|
/*
|
||
|
|
These options are experimental
|
||
|
|
|
||
|
|
#define CS461X_FULL_MAP
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef PCI_VENDOR_ID_CIRRUS
|
||
|
|
#define PCI_VENDOR_ID_CIRRUS 0x1013
|
||
|
|
#endif
|
||
|
|
#ifndef PCI_DEVICE_ID_CIRRUS_4610
|
||
|
|
#define PCI_DEVICE_ID_CIRRUS_4610 0x6001
|
||
|
|
#endif
|
||
|
|
#ifndef PCI_DEVICE_ID_CIRRUS_4612
|
||
|
|
#define PCI_DEVICE_ID_CIRRUS_4612 0x6003
|
||
|
|
#endif
|
||
|
|
#ifndef PCI_DEVICE_ID_CIRRUS_4615
|
||
|
|
#define PCI_DEVICE_ID_CIRRUS_4615 0x6004
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Registers */
|
||
|
|
|
||
|
|
#define BA0_JSPT 0x00000480
|
||
|
|
#define BA0_JSCTL 0x00000484
|
||
|
|
#define BA0_JSC1 0x00000488
|
||
|
|
#define BA0_JSC2 0x0000048C
|
||
|
|
#define BA0_JSIO 0x000004A0
|
||
|
|
|
||
|
|
/* Bits for JSPT */
|
||
|
|
|
||
|
|
#define JSPT_CAX 0x00000001
|
||
|
|
#define JSPT_CAY 0x00000002
|
||
|
|
#define JSPT_CBX 0x00000004
|
||
|
|
#define JSPT_CBY 0x00000008
|
||
|
|
#define JSPT_BA1 0x00000010
|
||
|
|
#define JSPT_BA2 0x00000020
|
||
|
|
#define JSPT_BB1 0x00000040
|
||
|
|
#define JSPT_BB2 0x00000080
|
||
|
|
|
||
|
|
/* Bits for JSCTL */
|
||
|
|
|
||
|
|
#define JSCTL_SP_MASK 0x00000003
|
||
|
|
#define JSCTL_SP_SLOW 0x00000000
|
||
|
|
#define JSCTL_SP_MEDIUM_SLOW 0x00000001
|
||
|
|
#define JSCTL_SP_MEDIUM_FAST 0x00000002
|
||
|
|
#define JSCTL_SP_FAST 0x00000003
|
||
|
|
#define JSCTL_ARE 0x00000004
|
||
|
|
|
||
|
|
/* Data register pairs masks */
|
||
|
|
|
||
|
|
#define JSC1_Y1V_MASK 0x0000FFFF
|
||
|
|
#define JSC1_X1V_MASK 0xFFFF0000
|
||
|
|
#define JSC1_Y1V_SHIFT 0
|
||
|
|
#define JSC1_X1V_SHIFT 16
|
||
|
|
#define JSC2_Y2V_MASK 0x0000FFFF
|
||
|
|
#define JSC2_X2V_MASK 0xFFFF0000
|
||
|
|
#define JSC2_Y2V_SHIFT 0
|
||
|
|
#define JSC2_X2V_SHIFT 16
|
||
|
|
|
||
|
|
/* JS GPIO */
|
||
|
|
|
||
|
|
#define JSIO_DAX 0x00000001
|
||
|
|
#define JSIO_DAY 0x00000002
|
||
|
|
#define JSIO_DBX 0x00000004
|
||
|
|
#define JSIO_DBY 0x00000008
|
||
|
|
#define JSIO_AXOE 0x00000010
|
||
|
|
#define JSIO_AYOE 0x00000020
|
||
|
|
#define JSIO_BXOE 0x00000040
|
||
|
|
#define JSIO_BYOE 0x00000080
|
||
|
|
|
||
|
|
/*
|
||
|
|
The card initialization code is obfuscated; the module cs461x
|
||
|
|
need to be loaded after ALSA modules initialized and something
|
||
|
|
played on the CS 4610 chip (see sources for details of CS4610
|
||
|
|
initialization code from ALSA)
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Card specific definitions */
|
||
|
|
|
||
|
|
#define CS461X_BA0_SIZE 0x2000
|
||
|
|
#define CS461X_BA1_DATA0_SIZE 0x3000
|
||
|
|
#define CS461X_BA1_DATA1_SIZE 0x3800
|
||
|
|
#define CS461X_BA1_PRG_SIZE 0x7000
|
||
|
|
#define CS461X_BA1_REG_SIZE 0x0100
|
||
|
|
|
||
|
|
#define BA1_SP_DMEM0 0x00000000
|
||
|
|
#define BA1_SP_DMEM1 0x00010000
|
||
|
|
#define BA1_SP_PMEM 0x00020000
|
||
|
|
#define BA1_SP_REG 0x00030000
|
||
|
|
|
||
|
|
#define BA1_DWORD_SIZE (13 * 1024 + 512)
|
||
|
|
#define BA1_MEMORY_COUNT 3
|
||
|
|
|
||
|
|
/*
|
||
|
|
Only one CS461x card is still suppoted; the code requires
|
||
|
|
redesign to avoid this limitatuion.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static unsigned long ba0_addr;
|
||
|
|
static unsigned int __iomem *ba0;
|
||
|
|
|
||
|
|
#ifdef CS461X_FULL_MAP
|
||
|
|
static unsigned long ba1_addr;
|
||
|
|
static union ba1_t {
|
||
|
|
struct {
|
||
|
|
unsigned int __iomem *data0;
|
||
|
|
unsigned int __iomem *data1;
|
||
|
|
unsigned int __iomem *pmem;
|
||
|
|
unsigned int __iomem *reg;
|
||
|
|
} name;
|
||
|
|
unsigned int __iomem *idx[4];
|
||
|
|
} ba1;
|
||
|
|
|
||
|
|
static void cs461x_poke(unsigned long reg, unsigned int val)
|
||
|
|
{
|
||
|
|
writel(val, &ba1.idx[(reg >> 16) & 3][(reg >> 2) & 0x3fff]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned int cs461x_peek(unsigned long reg)
|
||
|
|
{
|
||
|
|
return readl(&ba1.idx[(reg >> 16) & 3][(reg >> 2) & 0x3fff]);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static void cs461x_pokeBA0(unsigned long reg, unsigned int val)
|
||
|
|
{
|
||
|
|
writel(val, &ba0[reg >> 2]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned int cs461x_peekBA0(unsigned long reg)
|
||
|
|
{
|
||
|
|
return readl(&ba0[reg >> 2]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cs461x_free(struct pci_dev *pdev)
|
||
|
|
{
|
||
|
|
struct gameport *port = pci_get_drvdata(pdev);
|
||
|
|
|
||
|
|
if (port)
|
||
|
|
gameport_unregister_port(port);
|
||
|
|
|
||
|
|
if (ba0) iounmap(ba0);
|
||
|
|
#ifdef CS461X_FULL_MAP
|
||
|
|
if (ba1.name.data0) iounmap(ba1.name.data0);
|
||
|
|
if (ba1.name.data1) iounmap(ba1.name.data1);
|
||
|
|
if (ba1.name.pmem) iounmap(ba1.name.pmem);
|
||
|
|
if (ba1.name.reg) iounmap(ba1.name.reg);
|
||
|
|
#endif
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void cs461x_gameport_trigger(struct gameport *gameport)
|
||
|
|
{
|
||
|
|
cs461x_pokeBA0(BA0_JSPT, 0xFF); //outb(gameport->io, 0xFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned char cs461x_gameport_read(struct gameport *gameport)
|
||
|
|
{
|
||
|
|
return cs461x_peekBA0(BA0_JSPT); //inb(gameport->io);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cs461x_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
|
||
|
|
{
|
||
|
|
unsigned js1, js2, jst;
|
||
|
|
|
||
|
|
js1 = cs461x_peekBA0(BA0_JSC1);
|
||
|
|
js2 = cs461x_peekBA0(BA0_JSC2);
|
||
|
|
jst = cs461x_peekBA0(BA0_JSPT);
|
||
|
|
|
||
|
|
*buttons = (~jst >> 4) & 0x0F;
|
||
|
|
|
||
|
|
axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
|
||
|
|
axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
|
||
|
|
axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
|
||
|
|
axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
|
||
|
|
|
||
|
|
for(jst=0;jst<4;++jst)
|
||
|
|
if(axes[jst]==0xFFFF) axes[jst] = -1;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cs461x_gameport_open(struct gameport *gameport, int mode)
|
||
|
|
{
|
||
|
|
switch (mode) {
|
||
|
|
case GAMEPORT_MODE_COOKED:
|
||
|
|
case GAMEPORT_MODE_RAW:
|
||
|
|
return 0;
|
||
|
|
default:
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pci_device_id cs461x_pci_tbl[] = {
|
||
|
|
{ PCI_VENDOR_ID_CIRRUS, 0x6001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Cirrus CS4610 */
|
||
|
|
{ PCI_VENDOR_ID_CIRRUS, 0x6003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Cirrus CS4612 */
|
||
|
|
{ PCI_VENDOR_ID_CIRRUS, 0x6005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Cirrus CS4615 */
|
||
|
|
{ 0, }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(pci, cs461x_pci_tbl);
|
||
|
|
|
||
|
|
static int __devinit cs461x_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||
|
|
{
|
||
|
|
int rc;
|
||
|
|
struct gameport* port;
|
||
|
|
|
||
|
|
rc = pci_enable_device(pdev);
|
||
|
|
if (rc) {
|
||
|
|
printk(KERN_ERR "cs461x: Cannot enable PCI gameport (bus %d, devfn %d) error=%d\n",
|
||
|
|
pdev->bus->number, pdev->devfn, rc);
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
ba0_addr = pci_resource_start(pdev, 0);
|
||
|
|
#ifdef CS461X_FULL_MAP
|
||
|
|
ba1_addr = pci_resource_start(pdev, 1);
|
||
|
|
#endif
|
||
|
|
if (ba0_addr == 0 || ba0_addr == ~0
|
||
|
|
#ifdef CS461X_FULL_MAP
|
||
|
|
|| ba1_addr == 0 || ba1_addr == ~0
|
||
|
|
#endif
|
||
|
|
) {
|
||
|
|
printk(KERN_ERR "cs461x: wrong address - ba0 = 0x%lx\n", ba0_addr);
|
||
|
|
#ifdef CS461X_FULL_MAP
|
||
|
|
printk(KERN_ERR "cs461x: wrong address - ba1 = 0x%lx\n", ba1_addr);
|
||
|
|
#endif
|
||
|
|
cs461x_free(pdev);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
ba0 = ioremap(ba0_addr, CS461X_BA0_SIZE);
|
||
|
|
#ifdef CS461X_FULL_MAP
|
||
|
|
ba1.name.data0 = ioremap(ba1_addr + BA1_SP_DMEM0, CS461X_BA1_DATA0_SIZE);
|
||
|
|
ba1.name.data1 = ioremap(ba1_addr + BA1_SP_DMEM1, CS461X_BA1_DATA1_SIZE);
|
||
|
|
ba1.name.pmem = ioremap(ba1_addr + BA1_SP_PMEM, CS461X_BA1_PRG_SIZE);
|
||
|
|
ba1.name.reg = ioremap(ba1_addr + BA1_SP_REG, CS461X_BA1_REG_SIZE);
|
||
|
|
|
||
|
|
if (ba0 == NULL || ba1.name.data0 == NULL ||
|
||
|
|
ba1.name.data1 == NULL || ba1.name.pmem == NULL ||
|
||
|
|
ba1.name.reg == NULL) {
|
||
|
|
cs461x_free(pdev);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
if (ba0 == NULL) {
|
||
|
|
cs461x_free(pdev);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (!(port = gameport_allocate_port())) {
|
||
|
|
printk(KERN_ERR "cs461x: Memory allocation failed\n");
|
||
|
|
cs461x_free(pdev);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
pci_set_drvdata(pdev, port);
|
||
|
|
|
||
|
|
port->open = cs461x_gameport_open;
|
||
|
|
port->trigger = cs461x_gameport_trigger;
|
||
|
|
port->read = cs461x_gameport_read;
|
||
|
|
port->cooked_read = cs461x_gameport_cooked_read;
|
||
|
|
|
||
|
|
gameport_set_name(port, "CS416x");
|
||
|
|
gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
|
||
|
|
port->dev.parent = &pdev->dev;
|
||
|
|
|
||
|
|
cs461x_pokeBA0(BA0_JSIO, 0xFF); // ?
|
||
|
|
cs461x_pokeBA0(BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
|
||
|
|
|
||
|
|
gameport_register_port(port);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __devexit cs461x_pci_remove(struct pci_dev *pdev)
|
||
|
|
{
|
||
|
|
cs461x_free(pdev);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pci_driver cs461x_pci_driver = {
|
||
|
|
.name = "CS461x_gameport",
|
||
|
|
.id_table = cs461x_pci_tbl,
|
||
|
|
.probe = cs461x_pci_probe,
|
||
|
|
.remove = __devexit_p(cs461x_pci_remove),
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init cs461x_init(void)
|
||
|
|
{
|
||
|
|
return pci_register_driver(&cs461x_pci_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit cs461x_exit(void)
|
||
|
|
{
|
||
|
|
pci_unregister_driver(&cs461x_pci_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(cs461x_init);
|
||
|
|
module_exit(cs461x_exit);
|
||
|
|
|