+++ /dev/null
-/*
- 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);
-
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