diff options
Diffstat (limited to 'drivers/isdn/hisax/avm_a1p.c')
| -rw-r--r-- | drivers/isdn/hisax/avm_a1p.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/avm_a1p.c b/drivers/isdn/hisax/avm_a1p.c new file mode 100644 index 000000000..bc52d54ff --- /dev/null +++ b/drivers/isdn/hisax/avm_a1p.c @@ -0,0 +1,267 @@ +/* $Id: avm_a1p.c,v 2.9.2.5 2004/01/24 20:47:19 keil Exp $ + * + * low level stuff for the following AVM cards: + * A1 PCMCIA + * FRITZ!Card PCMCIA + * FRITZ!Card PCMCIA 2.0 + * + * Author Carsten Paeth + * Copyright by Carsten Paeth <calle@calle.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" + +/* register offsets */ +#define ADDRREG_OFFSET 0x02 +#define DATAREG_OFFSET 0x03 +#define ASL0_OFFSET 0x04 +#define ASL1_OFFSET 0x05 +#define MODREG_OFFSET 0x06 +#define VERREG_OFFSET 0x07 + +/* address offsets */ +#define ISAC_FIFO_OFFSET 0x00 +#define ISAC_REG_OFFSET 0x20 +#define HSCX_CH_DIFF 0x40 +#define HSCX_FIFO_OFFSET 0x80 +#define HSCX_REG_OFFSET 0xa0 + +/* read bits ASL0 */ +#define ASL0_R_TIMER 0x10 /* active low */ +#define ASL0_R_ISAC 0x20 /* active low */ +#define ASL0_R_HSCX 0x40 /* active low */ +#define ASL0_R_TESTBIT 0x80 +#define ASL0_R_IRQPENDING (ASL0_R_ISAC | ASL0_R_HSCX | ASL0_R_TIMER) + +/* write bits ASL0 */ +#define ASL0_W_RESET 0x01 +#define ASL0_W_TDISABLE 0x02 +#define ASL0_W_TRESET 0x04 +#define ASL0_W_IRQENABLE 0x08 +#define ASL0_W_TESTBIT 0x80 + +/* write bits ASL1 */ +#define ASL1_W_LED0 0x10 +#define ASL1_W_LED1 0x20 +#define ASL1_W_ENABLE_S0 0xC0 + +#define byteout(addr, val) outb(val, addr) +#define bytein(addr) inb(addr) + +static const char *avm_revision = "$Revision: 2.9.2.5 $"; + +static inline u_char +ReadISAC(struct IsdnCardState *cs, u_char offset) +{ + u_char ret; + + offset -= 0x20; + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_REG_OFFSET + offset); + ret = bytein(cs->hw.avm.cfg_reg + DATAREG_OFFSET); + return ret; +} + +static inline void +WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) +{ + offset -= 0x20; + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_REG_OFFSET + offset); + byteout(cs->hw.avm.cfg_reg + DATAREG_OFFSET, value); +} + +static inline void +ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) +{ + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_FIFO_OFFSET); + insb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size); +} + +static inline void +WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) +{ + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_FIFO_OFFSET); + outsb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size); +} + +static inline u_char +ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) +{ + u_char ret; + + offset -= 0x20; + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, + HSCX_REG_OFFSET + hscx * HSCX_CH_DIFF + offset); + ret = bytein(cs->hw.avm.cfg_reg + DATAREG_OFFSET); + return ret; +} + +static inline void +WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) +{ + offset -= 0x20; + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, + HSCX_REG_OFFSET + hscx * HSCX_CH_DIFF + offset); + byteout(cs->hw.avm.cfg_reg + DATAREG_OFFSET, value); +} + +static inline void +ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char *data, int size) +{ + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, + HSCX_FIFO_OFFSET + hscx * HSCX_CH_DIFF); + insb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size); +} + +static inline void +WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char *data, int size) +{ + byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, + HSCX_FIFO_OFFSET + hscx * HSCX_CH_DIFF); + outsb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size); +} + +/* + * fast interrupt HSCX stuff goes here + */ + +#define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg) +#define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data) +#define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt) +#define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt) + +#include "hscx_irq.c" + +static irqreturn_t +avm_a1p_interrupt(int intno, void *dev_id) +{ + struct IsdnCardState *cs = dev_id; + u_char val, sval; + u_long flags; + + spin_lock_irqsave(&cs->lock, flags); + while ((sval = (~bytein(cs->hw.avm.cfg_reg + ASL0_OFFSET) & ASL0_R_IRQPENDING))) { + if (cs->debug & L1_DEB_INTSTAT) + debugl1(cs, "avm IntStatus %x", sval); + if (sval & ASL0_R_HSCX) { + val = ReadHSCX(cs, 1, HSCX_ISTA); + if (val) + hscx_int_main(cs, val); + } + if (sval & ASL0_R_ISAC) { + val = ReadISAC(cs, ISAC_ISTA); + if (val) + isac_interrupt(cs, val); + } + } + WriteHSCX(cs, 0, HSCX_MASK, 0xff); + WriteHSCX(cs, 1, HSCX_MASK, 0xff); + WriteISAC(cs, ISAC_MASK, 0xff); + WriteISAC(cs, ISAC_MASK, 0x00); + WriteHSCX(cs, 0, HSCX_MASK, 0x00); + WriteHSCX(cs, 1, HSCX_MASK, 0x00); + spin_unlock_irqrestore(&cs->lock, flags); + return IRQ_HANDLED; +} + +static int +AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) +{ + u_long flags; + + switch (mt) { + case CARD_RESET: + spin_lock_irqsave(&cs->lock, flags); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_RESET); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00); + spin_unlock_irqrestore(&cs->lock, flags); + return 0; + + case CARD_RELEASE: + /* free_irq is done in HiSax_closecard(). */ + /* free_irq(cs->irq, cs); */ + return 0; + + case CARD_INIT: + spin_lock_irqsave(&cs->lock, flags); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_TDISABLE | ASL0_W_TRESET | ASL0_W_IRQENABLE); + clear_pending_isac_ints(cs); + clear_pending_hscx_ints(cs); + inithscxisac(cs, 1); + inithscxisac(cs, 2); + spin_unlock_irqrestore(&cs->lock, flags); + return 0; + + case CARD_TEST: + /* we really don't need it for the PCMCIA Version */ + return 0; + + default: + /* all card drivers ignore others, so we do the same */ + return 0; + } + return 0; +} + +int setup_avm_a1_pcmcia(struct IsdnCard *card) +{ + u_char model, vers; + struct IsdnCardState *cs = card->cs; + char tmp[64]; + + + strcpy(tmp, avm_revision); + printk(KERN_INFO "HiSax: AVM A1 PCMCIA driver Rev. %s\n", + HiSax_getrev(tmp)); + if (cs->typ != ISDN_CTYPE_A1_PCMCIA) + return (0); + + cs->hw.avm.cfg_reg = card->para[1]; + cs->irq = card->para[0]; + + + byteout(cs->hw.avm.cfg_reg + ASL1_OFFSET, ASL1_W_ENABLE_S0); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_RESET); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00); + + byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_TDISABLE | ASL0_W_TRESET); + + model = bytein(cs->hw.avm.cfg_reg + MODREG_OFFSET); + vers = bytein(cs->hw.avm.cfg_reg + VERREG_OFFSET); + + printk(KERN_INFO "AVM A1 PCMCIA: io 0x%x irq %d model %d version %d\n", + cs->hw.avm.cfg_reg, cs->irq, model, vers); + + 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 = &AVM_card_msg; + cs->irq_flags = IRQF_SHARED; + cs->irq_func = &avm_a1p_interrupt; + + ISACVersion(cs, "AVM A1 PCMCIA:"); + if (HscxVersion(cs, "AVM A1 PCMCIA:")) { + printk(KERN_WARNING + "AVM A1 PCMCIA: wrong HSCX versions check IO address\n"); + return (0); + } + return (1); +} |