diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/isdn/hisax/telespci.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/telespci.c b/drivers/isdn/hisax/telespci.c new file mode 100644 index 000000000..33eeb4602 --- /dev/null +++ b/drivers/isdn/hisax/telespci.c @@ -0,0 +1,349 @@ +/* $Id: telespci.c,v 2.23.2.3 2004/01/13 14:31:26 keil Exp $ + * + * low level stuff for Teles PCI isdn cards + * + * Author Ton van Rosmalen + * Karsten Keil + * Copyright by Ton van Rosmalen + * by Karsten Keil <keil@isdn4linux.de> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/init.h> +#include "hisax.h" +#include "isac.h" +#include "hscx.h" +#include "isdnl1.h" +#include <linux/pci.h> + +static const char *telespci_revision = "$Revision: 2.23.2.3 $"; + +#define ZORAN_PO_RQ_PEN 0x02000000 +#define ZORAN_PO_WR 0x00800000 +#define ZORAN_PO_GID0 0x00000000 +#define ZORAN_PO_GID1 0x00100000 +#define ZORAN_PO_GREG0 0x00000000 +#define ZORAN_PO_GREG1 0x00010000 +#define ZORAN_PO_DMASK 0xFF + +#define WRITE_ADDR_ISAC (ZORAN_PO_WR | ZORAN_PO_GID0 | ZORAN_PO_GREG0) +#define READ_DATA_ISAC (ZORAN_PO_GID0 | ZORAN_PO_GREG1) +#define WRITE_DATA_ISAC (ZORAN_PO_WR | ZORAN_PO_GID0 | ZORAN_PO_GREG1) +#define WRITE_ADDR_HSCX (ZORAN_PO_WR | ZORAN_PO_GID1 | ZORAN_PO_GREG0) +#define READ_DATA_HSCX (ZORAN_PO_GID1 | ZORAN_PO_GREG1) +#define WRITE_DATA_HSCX (ZORAN_PO_WR | ZORAN_PO_GID1 | ZORAN_PO_GREG1) + +#define ZORAN_WAIT_NOBUSY do { \ + portdata = readl(adr + 0x200); \ + } while (portdata & ZORAN_PO_RQ_PEN) + +static inline u_char +readisac(void __iomem *adr, u_char off) +{ + register unsigned int portdata; + + ZORAN_WAIT_NOBUSY; + + /* set address for ISAC */ + writel(WRITE_ADDR_ISAC | off, adr + 0x200); + ZORAN_WAIT_NOBUSY; + + /* read data from ISAC */ + writel(READ_DATA_ISAC, adr + 0x200); + ZORAN_WAIT_NOBUSY; + return ((u_char)(portdata & ZORAN_PO_DMASK)); +} + +static inline void +writeisac(void __iomem *adr, u_char off, u_char data) +{ + register unsigned int portdata; + + ZORAN_WAIT_NOBUSY; + + /* set address for ISAC */ + writel(WRITE_ADDR_ISAC | off, adr + 0x200); + ZORAN_WAIT_NOBUSY; + + /* write data to ISAC */ + writel(WRITE_DATA_ISAC | data, adr + 0x200); + ZORAN_WAIT_NOBUSY; +} + +static inline u_char +readhscx(void __iomem *adr, int hscx, u_char off) +{ + register unsigned int portdata; + + ZORAN_WAIT_NOBUSY; + /* set address for HSCX */ + writel(WRITE_ADDR_HSCX | ((hscx ? 0x40 : 0) + off), adr + 0x200); + ZORAN_WAIT_NOBUSY; + + /* read data from HSCX */ + writel(READ_DATA_HSCX, adr + 0x200); + ZORAN_WAIT_NOBUSY; + return ((u_char)(portdata & ZORAN_PO_DMASK)); +} + +static inline void +writehscx(void __iomem *adr, int hscx, u_char off, u_char data) +{ + register unsigned int portdata; + + ZORAN_WAIT_NOBUSY; + /* set address for HSCX */ + writel(WRITE_ADDR_HSCX | ((hscx ? 0x40 : 0) + off), adr + 0x200); + ZORAN_WAIT_NOBUSY; + + /* write data to HSCX */ + writel(WRITE_DATA_HSCX | data, adr + 0x200); + ZORAN_WAIT_NOBUSY; +} + +static inline void +read_fifo_isac(void __iomem *adr, u_char *data, int size) +{ + register unsigned int portdata; + register int i; + + ZORAN_WAIT_NOBUSY; + /* read data from ISAC */ + for (i = 0; i < size; i++) { + /* set address for ISAC fifo */ + writel(WRITE_ADDR_ISAC | 0x1E, adr + 0x200); + ZORAN_WAIT_NOBUSY; + writel(READ_DATA_ISAC, adr + 0x200); + ZORAN_WAIT_NOBUSY; + data[i] = (u_char)(portdata & ZORAN_PO_DMASK); + } +} + +static void +write_fifo_isac(void __iomem *adr, u_char *data, int size) +{ + register unsigned int portdata; + register int i; + + ZORAN_WAIT_NOBUSY; + /* write data to ISAC */ + for (i = 0; i < size; i++) { + /* set address for ISAC fifo */ + writel(WRITE_ADDR_ISAC | 0x1E, adr + 0x200); + ZORAN_WAIT_NOBUSY; + writel(WRITE_DATA_ISAC | data[i], adr + 0x200); + ZORAN_WAIT_NOBUSY; + } +} + +static inline void +read_fifo_hscx(void __iomem *adr, int hscx, u_char *data, int size) +{ + register unsigned int portdata; + register int i; + + ZORAN_WAIT_NOBUSY; + /* read data from HSCX */ + for (i = 0; i < size; i++) { + /* set address for HSCX fifo */ + writel(WRITE_ADDR_HSCX | (hscx ? 0x5F : 0x1F), adr + 0x200); + ZORAN_WAIT_NOBUSY; + writel(READ_DATA_HSCX, adr + 0x200); + ZORAN_WAIT_NOBUSY; + data[i] = (u_char) (portdata & ZORAN_PO_DMASK); + } +} + +static inline void +write_fifo_hscx(void __iomem *adr, int hscx, u_char *data, int size) +{ + unsigned int portdata; + register int i; + + ZORAN_WAIT_NOBUSY; + /* write data to HSCX */ + for (i = 0; i < size; i++) { + /* set address for HSCX fifo */ + writel(WRITE_ADDR_HSCX | (hscx ? 0x5F : 0x1F), adr + 0x200); + ZORAN_WAIT_NOBUSY; + writel(WRITE_DATA_HSCX | data[i], adr + 0x200); + ZORAN_WAIT_NOBUSY; + udelay(10); + } +} + +/* Interface functions */ + +static u_char +ReadISAC(struct IsdnCardState *cs, u_char offset) +{ + return (readisac(cs->hw.teles0.membase, offset)); +} + +static void +WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) +{ + writeisac(cs->hw.teles0.membase, offset, value); +} + +static void +ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) +{ + read_fifo_isac(cs->hw.teles0.membase, data, size); +} + +static void +WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) +{ + write_fifo_isac(cs->hw.teles0.membase, data, size); +} + +static u_char +ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) +{ + return (readhscx(cs->hw.teles0.membase, hscx, offset)); +} + +static void +WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) +{ + writehscx(cs->hw.teles0.membase, hscx, offset, value); +} + +/* + * fast interrupt HSCX stuff goes here + */ + +#define READHSCX(cs, nr, reg) readhscx(cs->hw.teles0.membase, nr, reg) +#define WRITEHSCX(cs, nr, reg, data) writehscx(cs->hw.teles0.membase, nr, reg, data) +#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt) +#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt) + +#include "hscx_irq.c" + +static irqreturn_t +telespci_interrupt(int intno, void *dev_id) +{ + struct IsdnCardState *cs = dev_id; + u_char hval, ival; + u_long flags; + + spin_lock_irqsave(&cs->lock, flags); + hval = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); + if (hval) + hscx_int_main(cs, hval); + ival = readisac(cs->hw.teles0.membase, ISAC_ISTA); + if ((hval | ival) == 0) { + spin_unlock_irqrestore(&cs->lock, flags); + return IRQ_NONE; + } + if (ival) + isac_interrupt(cs, ival); + /* Clear interrupt register for Zoran PCI controller */ + writel(0x70000000, cs->hw.teles0.membase + 0x3C); + + writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF); + writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF); + writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF); + writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0); + writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0); + writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0); + spin_unlock_irqrestore(&cs->lock, flags); + return IRQ_HANDLED; +} + +static void +release_io_telespci(struct IsdnCardState *cs) +{ + iounmap(cs->hw.teles0.membase); +} + +static int +TelesPCI_card_msg(struct IsdnCardState *cs, int mt, void *arg) +{ + u_long flags; + + switch (mt) { + case CARD_RESET: + return (0); + case CARD_RELEASE: + release_io_telespci(cs); + return (0); + case CARD_INIT: + spin_lock_irqsave(&cs->lock, flags); + inithscxisac(cs, 3); + spin_unlock_irqrestore(&cs->lock, flags); + return (0); + case CARD_TEST: + return (0); + } + return (0); +} + +static struct pci_dev *dev_tel = NULL; + +int setup_telespci(struct IsdnCard *card) +{ + struct IsdnCardState *cs = card->cs; + char tmp[64]; + + strcpy(tmp, telespci_revision); + printk(KERN_INFO "HiSax: Teles/PCI driver Rev. %s\n", HiSax_getrev(tmp)); + if (cs->typ != ISDN_CTYPE_TELESPCI) + return (0); + + if ((dev_tel = hisax_find_pci_device(PCI_VENDOR_ID_ZORAN, PCI_DEVICE_ID_ZORAN_36120, dev_tel))) { + if (pci_enable_device(dev_tel)) + return (0); + cs->irq = dev_tel->irq; + if (!cs->irq) { + printk(KERN_WARNING "Teles: No IRQ for PCI card found\n"); + return (0); + } + cs->hw.teles0.membase = ioremap(pci_resource_start(dev_tel, 0), + PAGE_SIZE); + printk(KERN_INFO "Found: Zoran, base-address: 0x%llx, irq: 0x%x\n", + (unsigned long long)pci_resource_start(dev_tel, 0), + dev_tel->irq); + } else { + printk(KERN_WARNING "TelesPCI: No PCI card found\n"); + return (0); + } + + /* Initialize Zoran PCI controller */ + writel(0x00000000, cs->hw.teles0.membase + 0x28); + writel(0x01000000, cs->hw.teles0.membase + 0x28); + writel(0x01000000, cs->hw.teles0.membase + 0x28); + writel(0x7BFFFFFF, cs->hw.teles0.membase + 0x2C); + writel(0x70000000, cs->hw.teles0.membase + 0x3C); + writel(0x61000000, cs->hw.teles0.membase + 0x40); + /* writel(0x00800000, cs->hw.teles0.membase + 0x200); */ + + printk(KERN_INFO + "HiSax: Teles PCI config irq:%d mem:%p\n", + cs->irq, + cs->hw.teles0.membase); + + setup_isac(cs); + cs->readisac = &ReadISAC; + cs->writeisac = &WriteISAC; + cs->readisacfifo = &ReadISACfifo; + cs->writeisacfifo = &WriteISACfifo; + cs->BC_Read_Reg = &ReadHSCX; + cs->BC_Write_Reg = &WriteHSCX; + cs->BC_Send_Data = &hscx_fill_fifo; + cs->cardmsg = &TelesPCI_card_msg; + cs->irq_func = &telespci_interrupt; + cs->irq_flags |= IRQF_SHARED; + ISACVersion(cs, "TelesPCI:"); + if (HscxVersion(cs, "TelesPCI:")) { + printk(KERN_WARNING + "TelesPCI: wrong HSCX versions check IO/MEM addresses\n"); + release_io_telespci(cs); + return (0); + } + return (1); +} |