Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/input/gameport/cs461x.c b/drivers/input/gameport/cs461x.c
new file mode 100644
index 0000000..d4013ff
--- /dev/null
+++ b/drivers/input/gameport/cs461x.c
@@ -0,0 +1,322 @@
+/*
+ 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);
+
