diff options
Diffstat (limited to 'drivers/isdn/hardware/avm/b1dma.c')
| -rw-r--r-- | drivers/isdn/hardware/avm/b1dma.c | 981 |
1 files changed, 981 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/avm/b1dma.c b/drivers/isdn/hardware/avm/b1dma.c new file mode 100644 index 000000000..6a3dc9937 --- /dev/null +++ b/drivers/isdn/hardware/avm/b1dma.c @@ -0,0 +1,981 @@ +/* $Id: b1dma.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $ + * + * Common module for AVM B1 cards that support dma with AMCC + * + * Copyright 2000 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/module.h> +#include <linux/kernel.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/skbuff.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/capi.h> +#include <linux/kernelcapi.h> +#include <linux/gfp.h> +#include <asm/io.h> +#include <linux/init.h> +#include <linux/uaccess.h> +#include <linux/netdevice.h> +#include <linux/isdn/capilli.h> +#include "avmcard.h" +#include <linux/isdn/capicmd.h> +#include <linux/isdn/capiutil.h> + +static char *revision = "$Revision: 1.1.2.3 $"; + +#undef AVM_B1DMA_DEBUG + +/* ------------------------------------------------------------- */ + +MODULE_DESCRIPTION("CAPI4Linux: DMA support for active AVM cards"); +MODULE_AUTHOR("Carsten Paeth"); +MODULE_LICENSE("GPL"); + +static bool suppress_pollack = 0; +module_param(suppress_pollack, bool, 0); + +/* ------------------------------------------------------------- */ + +static void b1dma_dispatch_tx(avmcard *card); + +/* ------------------------------------------------------------- */ + +/* S5933 */ + +#define AMCC_RXPTR 0x24 +#define AMCC_RXLEN 0x28 +#define AMCC_TXPTR 0x2c +#define AMCC_TXLEN 0x30 + +#define AMCC_INTCSR 0x38 +# define EN_READ_TC_INT 0x00008000L +# define EN_WRITE_TC_INT 0x00004000L +# define EN_TX_TC_INT EN_READ_TC_INT +# define EN_RX_TC_INT EN_WRITE_TC_INT +# define AVM_FLAG 0x30000000L + +# define ANY_S5933_INT 0x00800000L +# define READ_TC_INT 0x00080000L +# define WRITE_TC_INT 0x00040000L +# define TX_TC_INT READ_TC_INT +# define RX_TC_INT WRITE_TC_INT +# define MASTER_ABORT_INT 0x00100000L +# define TARGET_ABORT_INT 0x00200000L +# define BUS_MASTER_INT 0x00200000L +# define ALL_INT 0x000C0000L + +#define AMCC_MCSR 0x3c +# define A2P_HI_PRIORITY 0x00000100L +# define EN_A2P_TRANSFERS 0x00000400L +# define P2A_HI_PRIORITY 0x00001000L +# define EN_P2A_TRANSFERS 0x00004000L +# define RESET_A2P_FLAGS 0x04000000L +# define RESET_P2A_FLAGS 0x02000000L + +/* ------------------------------------------------------------- */ + +static inline void b1dma_writel(avmcard *card, u32 value, int off) +{ + writel(value, card->mbase + off); +} + +static inline u32 b1dma_readl(avmcard *card, int off) +{ + return readl(card->mbase + off); +} + +/* ------------------------------------------------------------- */ + +static inline int b1dma_tx_empty(unsigned int port) +{ + return inb(port + 0x03) & 0x1; +} + +static inline int b1dma_rx_full(unsigned int port) +{ + return inb(port + 0x02) & 0x1; +} + +static int b1dma_tolink(avmcard *card, void *buf, unsigned int len) +{ + unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */ + unsigned char *s = (unsigned char *)buf; + while (len--) { + while (!b1dma_tx_empty(card->port) + && time_before(jiffies, stop)); + if (!b1dma_tx_empty(card->port)) + return -1; + t1outp(card->port, 0x01, *s++); + } + return 0; +} + +static int b1dma_fromlink(avmcard *card, void *buf, unsigned int len) +{ + unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */ + unsigned char *s = (unsigned char *)buf; + while (len--) { + while (!b1dma_rx_full(card->port) + && time_before(jiffies, stop)); + if (!b1dma_rx_full(card->port)) + return -1; + *s++ = t1inp(card->port, 0x00); + } + return 0; +} + +static int WriteReg(avmcard *card, u32 reg, u8 val) +{ + u8 cmd = 0x00; + if (b1dma_tolink(card, &cmd, 1) == 0 + && b1dma_tolink(card, ®, 4) == 0) { + u32 tmp = val; + return b1dma_tolink(card, &tmp, 4); + } + return -1; +} + +static u8 ReadReg(avmcard *card, u32 reg) +{ + u8 cmd = 0x01; + if (b1dma_tolink(card, &cmd, 1) == 0 + && b1dma_tolink(card, ®, 4) == 0) { + u32 tmp; + if (b1dma_fromlink(card, &tmp, 4) == 0) + return (u8)tmp; + } + return 0xff; +} + +/* ------------------------------------------------------------- */ + +static inline void _put_byte(void **pp, u8 val) +{ + u8 *s = *pp; + *s++ = val; + *pp = s; +} + +static inline void _put_word(void **pp, u32 val) +{ + u8 *s = *pp; + *s++ = val & 0xff; + *s++ = (val >> 8) & 0xff; + *s++ = (val >> 16) & 0xff; + *s++ = (val >> 24) & 0xff; + *pp = s; +} + +static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len) +{ + unsigned i = len; + _put_word(pp, i); + while (i-- > 0) + _put_byte(pp, *dp++); +} + +static inline u8 _get_byte(void **pp) +{ + u8 *s = *pp; + u8 val; + val = *s++; + *pp = s; + return val; +} + +static inline u32 _get_word(void **pp) +{ + u8 *s = *pp; + u32 val; + val = *s++; + val |= (*s++ << 8); + val |= (*s++ << 16); + val |= (*s++ << 24); + *pp = s; + return val; +} + +static inline u32 _get_slice(void **pp, unsigned char *dp) +{ + unsigned int len, i; + + len = i = _get_word(pp); + while (i-- > 0) *dp++ = _get_byte(pp); + return len; +} + +/* ------------------------------------------------------------- */ + +void b1dma_reset(avmcard *card) +{ + card->csr = 0x0; + b1dma_writel(card, card->csr, AMCC_INTCSR); + b1dma_writel(card, 0, AMCC_MCSR); + b1dma_writel(card, 0, AMCC_RXLEN); + b1dma_writel(card, 0, AMCC_TXLEN); + + t1outp(card->port, 0x10, 0x00); + t1outp(card->port, 0x07, 0x00); + + b1dma_writel(card, 0, AMCC_MCSR); + mdelay(10); + b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* reset all */ + mdelay(10); + b1dma_writel(card, 0, AMCC_MCSR); + if (card->cardtype == avm_t1pci) + mdelay(42); + else + mdelay(10); +} + +/* ------------------------------------------------------------- */ + +static int b1dma_detect(avmcard *card) +{ + b1dma_writel(card, 0, AMCC_MCSR); + mdelay(10); + b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* reset all */ + mdelay(10); + b1dma_writel(card, 0, AMCC_MCSR); + mdelay(42); + + b1dma_writel(card, 0, AMCC_RXLEN); + b1dma_writel(card, 0, AMCC_TXLEN); + card->csr = 0x0; + b1dma_writel(card, card->csr, AMCC_INTCSR); + + if (b1dma_readl(card, AMCC_MCSR) != 0x000000E6) + return 1; + + b1dma_writel(card, 0xffffffff, AMCC_RXPTR); + b1dma_writel(card, 0xffffffff, AMCC_TXPTR); + if (b1dma_readl(card, AMCC_RXPTR) != 0xfffffffc + || b1dma_readl(card, AMCC_TXPTR) != 0xfffffffc) + return 2; + + b1dma_writel(card, 0x0, AMCC_RXPTR); + b1dma_writel(card, 0x0, AMCC_TXPTR); + if (b1dma_readl(card, AMCC_RXPTR) != 0x0 + || b1dma_readl(card, AMCC_TXPTR) != 0x0) + return 3; + + t1outp(card->port, 0x10, 0x00); + t1outp(card->port, 0x07, 0x00); + + t1outp(card->port, 0x02, 0x02); + t1outp(card->port, 0x03, 0x02); + + if ((t1inp(card->port, 0x02) & 0xFE) != 0x02 + || t1inp(card->port, 0x3) != 0x03) + return 4; + + t1outp(card->port, 0x02, 0x00); + t1outp(card->port, 0x03, 0x00); + + if ((t1inp(card->port, 0x02) & 0xFE) != 0x00 + || t1inp(card->port, 0x3) != 0x01) + return 5; + + return 0; +} + +int t1pci_detect(avmcard *card) +{ + int ret; + + if ((ret = b1dma_detect(card)) != 0) + return ret; + + /* Transputer test */ + + if (WriteReg(card, 0x80001000, 0x11) != 0 + || WriteReg(card, 0x80101000, 0x22) != 0 + || WriteReg(card, 0x80201000, 0x33) != 0 + || WriteReg(card, 0x80301000, 0x44) != 0) + return 6; + + if (ReadReg(card, 0x80001000) != 0x11 + || ReadReg(card, 0x80101000) != 0x22 + || ReadReg(card, 0x80201000) != 0x33 + || ReadReg(card, 0x80301000) != 0x44) + return 7; + + if (WriteReg(card, 0x80001000, 0x55) != 0 + || WriteReg(card, 0x80101000, 0x66) != 0 + || WriteReg(card, 0x80201000, 0x77) != 0 + || WriteReg(card, 0x80301000, 0x88) != 0) + return 8; + + if (ReadReg(card, 0x80001000) != 0x55 + || ReadReg(card, 0x80101000) != 0x66 + || ReadReg(card, 0x80201000) != 0x77 + || ReadReg(card, 0x80301000) != 0x88) + return 9; + + return 0; +} + +int b1pciv4_detect(avmcard *card) +{ + int ret, i; + + if ((ret = b1dma_detect(card)) != 0) + return ret; + + for (i = 0; i < 5; i++) { + if (WriteReg(card, 0x80A00000, 0x21) != 0) + return 6; + if ((ReadReg(card, 0x80A00000) & 0x01) != 0x01) + return 7; + } + for (i = 0; i < 5; i++) { + if (WriteReg(card, 0x80A00000, 0x20) != 0) + return 8; + if ((ReadReg(card, 0x80A00000) & 0x01) != 0x00) + return 9; + } + + return 0; +} + +static void b1dma_queue_tx(avmcard *card, struct sk_buff *skb) +{ + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + + skb_queue_tail(&card->dma->send_queue, skb); + + if (!(card->csr & EN_TX_TC_INT)) { + b1dma_dispatch_tx(card); + b1dma_writel(card, card->csr, AMCC_INTCSR); + } + + spin_unlock_irqrestore(&card->lock, flags); +} + +/* ------------------------------------------------------------- */ + +static void b1dma_dispatch_tx(avmcard *card) +{ + avmcard_dmainfo *dma = card->dma; + struct sk_buff *skb; + u8 cmd, subcmd; + u16 len; + u32 txlen; + void *p; + + skb = skb_dequeue(&dma->send_queue); + + len = CAPIMSG_LEN(skb->data); + + if (len) { + cmd = CAPIMSG_COMMAND(skb->data); + subcmd = CAPIMSG_SUBCOMMAND(skb->data); + + p = dma->sendbuf.dmabuf; + + if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) { + u16 dlen = CAPIMSG_DATALEN(skb->data); + _put_byte(&p, SEND_DATA_B3_REQ); + _put_slice(&p, skb->data, len); + _put_slice(&p, skb->data + len, dlen); + } else { + _put_byte(&p, SEND_MESSAGE); + _put_slice(&p, skb->data, len); + } + txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf; +#ifdef AVM_B1DMA_DEBUG + printk(KERN_DEBUG "tx: put msg len=%d\n", txlen); +#endif + } else { + txlen = skb->len - 2; +#ifdef AVM_B1DMA_POLLDEBUG + if (skb->data[2] == SEND_POLLACK) + printk(KERN_INFO "%s: send ack\n", card->name); +#endif +#ifdef AVM_B1DMA_DEBUG + printk(KERN_DEBUG "tx: put 0x%x len=%d\n", + skb->data[2], txlen); +#endif + skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf, + skb->len - 2); + } + txlen = (txlen + 3) & ~3; + + b1dma_writel(card, dma->sendbuf.dmaaddr, AMCC_TXPTR); + b1dma_writel(card, txlen, AMCC_TXLEN); + + card->csr |= EN_TX_TC_INT; + + dev_kfree_skb_any(skb); +} + +/* ------------------------------------------------------------- */ + +static void queue_pollack(avmcard *card) +{ + struct sk_buff *skb; + void *p; + + skb = alloc_skb(3, GFP_ATOMIC); + if (!skb) { + printk(KERN_CRIT "%s: no memory, lost poll ack\n", + card->name); + return; + } + p = skb->data; + _put_byte(&p, 0); + _put_byte(&p, 0); + _put_byte(&p, SEND_POLLACK); + skb_put(skb, (u8 *)p - (u8 *)skb->data); + + b1dma_queue_tx(card, skb); +} + +/* ------------------------------------------------------------- */ + +static void b1dma_handle_rx(avmcard *card) +{ + avmctrl_info *cinfo = &card->ctrlinfo[0]; + avmcard_dmainfo *dma = card->dma; + struct capi_ctr *ctrl = &cinfo->capi_ctrl; + struct sk_buff *skb; + void *p = dma->recvbuf.dmabuf + 4; + u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize; + u8 b1cmd = _get_byte(&p); + +#ifdef AVM_B1DMA_DEBUG + printk(KERN_DEBUG "rx: 0x%x %lu\n", b1cmd, (unsigned long)dma->recvlen); +#endif + + switch (b1cmd) { + case RECEIVE_DATA_B3_IND: + + ApplId = (unsigned) _get_word(&p); + MsgLen = _get_slice(&p, card->msgbuf); + DataB3Len = _get_slice(&p, card->databuf); + + if (MsgLen < 30) { /* not CAPI 64Bit */ + memset(card->msgbuf + MsgLen, 0, 30 - MsgLen); + MsgLen = 30; + CAPIMSG_SETLEN(card->msgbuf, 30); + } + if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) { + printk(KERN_ERR "%s: incoming packet dropped\n", + card->name); + } else { + skb_put_data(skb, card->msgbuf, MsgLen); + skb_put_data(skb, card->databuf, DataB3Len); + capi_ctr_handle_message(ctrl, ApplId, skb); + } + break; + + case RECEIVE_MESSAGE: + + ApplId = (unsigned) _get_word(&p); + MsgLen = _get_slice(&p, card->msgbuf); + if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) { + printk(KERN_ERR "%s: incoming packet dropped\n", + card->name); + } else { + skb_put_data(skb, card->msgbuf, MsgLen); + if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF) { + spin_lock(&card->lock); + capilib_data_b3_conf(&cinfo->ncci_head, ApplId, + CAPIMSG_NCCI(skb->data), + CAPIMSG_MSGID(skb->data)); + spin_unlock(&card->lock); + } + capi_ctr_handle_message(ctrl, ApplId, skb); + } + break; + + case RECEIVE_NEW_NCCI: + + ApplId = _get_word(&p); + NCCI = _get_word(&p); + WindowSize = _get_word(&p); + spin_lock(&card->lock); + capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize); + spin_unlock(&card->lock); + break; + + case RECEIVE_FREE_NCCI: + + ApplId = _get_word(&p); + NCCI = _get_word(&p); + + if (NCCI != 0xffffffff) { + spin_lock(&card->lock); + capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI); + spin_unlock(&card->lock); + } + break; + + case RECEIVE_START: +#ifdef AVM_B1DMA_POLLDEBUG + printk(KERN_INFO "%s: receive poll\n", card->name); +#endif + if (!suppress_pollack) + queue_pollack(card); + capi_ctr_resume_output(ctrl); + break; + + case RECEIVE_STOP: + capi_ctr_suspend_output(ctrl); + break; + + case RECEIVE_INIT: + + cinfo->versionlen = _get_slice(&p, cinfo->versionbuf); + b1_parse_version(cinfo); + printk(KERN_INFO "%s: %s-card (%s) now active\n", + card->name, + cinfo->version[VER_CARDTYPE], + cinfo->version[VER_DRIVER]); + capi_ctr_ready(ctrl); + break; + + case RECEIVE_TASK_READY: + ApplId = (unsigned) _get_word(&p); + MsgLen = _get_slice(&p, card->msgbuf); + card->msgbuf[MsgLen] = 0; + while (MsgLen > 0 + && (card->msgbuf[MsgLen - 1] == '\n' + || card->msgbuf[MsgLen - 1] == '\r')) { + card->msgbuf[MsgLen - 1] = 0; + MsgLen--; + } + printk(KERN_INFO "%s: task %d \"%s\" ready.\n", + card->name, ApplId, card->msgbuf); + break; + + case RECEIVE_DEBUGMSG: + MsgLen = _get_slice(&p, card->msgbuf); + card->msgbuf[MsgLen] = 0; + while (MsgLen > 0 + && (card->msgbuf[MsgLen - 1] == '\n' + || card->msgbuf[MsgLen - 1] == '\r')) { + card->msgbuf[MsgLen - 1] = 0; + MsgLen--; + } + printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf); + break; + + default: + printk(KERN_ERR "%s: b1dma_interrupt: 0x%x ???\n", + card->name, b1cmd); + return; + } +} + +/* ------------------------------------------------------------- */ + +static void b1dma_handle_interrupt(avmcard *card) +{ + u32 status; + u32 newcsr; + + spin_lock(&card->lock); + + status = b1dma_readl(card, AMCC_INTCSR); + if ((status & ANY_S5933_INT) == 0) { + spin_unlock(&card->lock); + return; + } + + newcsr = card->csr | (status & ALL_INT); + if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT; + if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT; + b1dma_writel(card, newcsr, AMCC_INTCSR); + + if ((status & RX_TC_INT) != 0) { + struct avmcard_dmainfo *dma = card->dma; + u32 rxlen; + if (card->dma->recvlen == 0) { + rxlen = b1dma_readl(card, AMCC_RXLEN); + if (rxlen == 0) { + dma->recvlen = *((u32 *)dma->recvbuf.dmabuf); + rxlen = (dma->recvlen + 3) & ~3; + b1dma_writel(card, dma->recvbuf.dmaaddr + 4, AMCC_RXPTR); + b1dma_writel(card, rxlen, AMCC_RXLEN); +#ifdef AVM_B1DMA_DEBUG + } else { + printk(KERN_ERR "%s: rx not complete (%d).\n", + card->name, rxlen); +#endif + } + } else { + spin_unlock(&card->lock); + b1dma_handle_rx(card); + dma->recvlen = 0; + spin_lock(&card->lock); + b1dma_writel(card, dma->recvbuf.dmaaddr, AMCC_RXPTR); + b1dma_writel(card, 4, AMCC_RXLEN); + } + } + + if ((status & TX_TC_INT) != 0) { + if (skb_queue_empty(&card->dma->send_queue)) + card->csr &= ~EN_TX_TC_INT; + else + b1dma_dispatch_tx(card); + } + b1dma_writel(card, card->csr, AMCC_INTCSR); + + spin_unlock(&card->lock); +} + +irqreturn_t b1dma_interrupt(int interrupt, void *devptr) +{ + avmcard *card = devptr; + + b1dma_handle_interrupt(card); + return IRQ_HANDLED; +} + +/* ------------------------------------------------------------- */ + +static int b1dma_loaded(avmcard *card) +{ + unsigned long stop; + unsigned char ans; + unsigned long tout = 2; + unsigned int base = card->port; + + for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { + if (b1_tx_empty(base)) + break; + } + if (!b1_tx_empty(base)) { + printk(KERN_ERR "%s: b1dma_loaded: tx err, corrupted t4 file ?\n", + card->name); + return 0; + } + b1_put_byte(base, SEND_POLLACK); + for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { + if (b1_rx_full(base)) { + if ((ans = b1_get_byte(base)) == RECEIVE_POLLDWORD) { + return 1; + } + printk(KERN_ERR "%s: b1dma_loaded: got 0x%x, firmware not running in dword mode\n", card->name, ans); + return 0; + } + } + printk(KERN_ERR "%s: b1dma_loaded: firmware not running\n", card->name); + return 0; +} + +/* ------------------------------------------------------------- */ + +static void b1dma_send_init(avmcard *card) +{ + struct sk_buff *skb; + void *p; + + skb = alloc_skb(15, GFP_ATOMIC); + if (!skb) { + printk(KERN_CRIT "%s: no memory, lost register appl.\n", + card->name); + return; + } + p = skb->data; + _put_byte(&p, 0); + _put_byte(&p, 0); + _put_byte(&p, SEND_INIT); + _put_word(&p, CAPI_MAXAPPL); + _put_word(&p, AVM_NCCI_PER_CHANNEL * 30); + _put_word(&p, card->cardnr - 1); + skb_put(skb, (u8 *)p - (u8 *)skb->data); + + b1dma_queue_tx(card, skb); +} + +int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + int retval; + + b1dma_reset(card); + + if ((retval = b1_load_t4file(card, &data->firmware))) { + b1dma_reset(card); + printk(KERN_ERR "%s: failed to load t4file!!\n", + card->name); + return retval; + } + + if (data->configuration.len > 0 && data->configuration.data) { + if ((retval = b1_load_config(card, &data->configuration))) { + b1dma_reset(card); + printk(KERN_ERR "%s: failed to load config!!\n", + card->name); + return retval; + } + } + + if (!b1dma_loaded(card)) { + b1dma_reset(card); + printk(KERN_ERR "%s: failed to load t4file.\n", card->name); + return -EIO; + } + + card->csr = AVM_FLAG; + b1dma_writel(card, card->csr, AMCC_INTCSR); + b1dma_writel(card, EN_A2P_TRANSFERS | EN_P2A_TRANSFERS | A2P_HI_PRIORITY | + P2A_HI_PRIORITY | RESET_A2P_FLAGS | RESET_P2A_FLAGS, + AMCC_MCSR); + t1outp(card->port, 0x07, 0x30); + t1outp(card->port, 0x10, 0xF0); + + card->dma->recvlen = 0; + b1dma_writel(card, card->dma->recvbuf.dmaaddr, AMCC_RXPTR); + b1dma_writel(card, 4, AMCC_RXLEN); + card->csr |= EN_RX_TC_INT; + b1dma_writel(card, card->csr, AMCC_INTCSR); + + b1dma_send_init(card); + + return 0; +} + +void b1dma_reset_ctr(struct capi_ctr *ctrl) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + b1dma_reset(card); + + memset(cinfo->version, 0, sizeof(cinfo->version)); + capilib_release(&cinfo->ncci_head); + spin_unlock_irqrestore(&card->lock, flags); + capi_ctr_down(ctrl); +} + +/* ------------------------------------------------------------- */ + +void b1dma_register_appl(struct capi_ctr *ctrl, + u16 appl, + capi_register_params *rp) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + struct sk_buff *skb; + int want = rp->level3cnt; + int nconn; + void *p; + + if (want > 0) nconn = want; + else nconn = ctrl->profile.nbchannel * -want; + if (nconn == 0) nconn = ctrl->profile.nbchannel; + + skb = alloc_skb(23, GFP_ATOMIC); + if (!skb) { + printk(KERN_CRIT "%s: no memory, lost register appl.\n", + card->name); + return; + } + p = skb->data; + _put_byte(&p, 0); + _put_byte(&p, 0); + _put_byte(&p, SEND_REGISTER); + _put_word(&p, appl); + _put_word(&p, 1024 * (nconn + 1)); + _put_word(&p, nconn); + _put_word(&p, rp->datablkcnt); + _put_word(&p, rp->datablklen); + skb_put(skb, (u8 *)p - (u8 *)skb->data); + + b1dma_queue_tx(card, skb); +} + +/* ------------------------------------------------------------- */ + +void b1dma_release_appl(struct capi_ctr *ctrl, u16 appl) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + struct sk_buff *skb; + void *p; + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + capilib_release_appl(&cinfo->ncci_head, appl); + spin_unlock_irqrestore(&card->lock, flags); + + skb = alloc_skb(7, GFP_ATOMIC); + if (!skb) { + printk(KERN_CRIT "%s: no memory, lost release appl.\n", + card->name); + return; + } + p = skb->data; + _put_byte(&p, 0); + _put_byte(&p, 0); + _put_byte(&p, SEND_RELEASE); + _put_word(&p, appl); + + skb_put(skb, (u8 *)p - (u8 *)skb->data); + + b1dma_queue_tx(card, skb); +} + +/* ------------------------------------------------------------- */ + +u16 b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + u16 retval = CAPI_NOERROR; + + if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) { + unsigned long flags; + spin_lock_irqsave(&card->lock, flags); + retval = capilib_data_b3_req(&cinfo->ncci_head, + CAPIMSG_APPID(skb->data), + CAPIMSG_NCCI(skb->data), + CAPIMSG_MSGID(skb->data)); + spin_unlock_irqrestore(&card->lock, flags); + } + if (retval == CAPI_NOERROR) + b1dma_queue_tx(card, skb); + + return retval; +} + +/* ------------------------------------------------------------- */ + +int b1dma_proc_show(struct seq_file *m, void *v) +{ + struct capi_ctr *ctrl = m->private; + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + u8 flag; + char *s; + u32 txoff, txlen, rxoff, rxlen, csr; + unsigned long flags; + + seq_printf(m, "%-16s %s\n", "name", card->name); + seq_printf(m, "%-16s 0x%x\n", "io", card->port); + seq_printf(m, "%-16s %d\n", "irq", card->irq); + seq_printf(m, "%-16s 0x%lx\n", "membase", card->membase); + switch (card->cardtype) { + case avm_b1isa: s = "B1 ISA"; break; + case avm_b1pci: s = "B1 PCI"; break; + case avm_b1pcmcia: s = "B1 PCMCIA"; break; + case avm_m1: s = "M1"; break; + case avm_m2: s = "M2"; break; + case avm_t1isa: s = "T1 ISA (HEMA)"; break; + case avm_t1pci: s = "T1 PCI"; break; + case avm_c4: s = "C4"; break; + case avm_c2: s = "C2"; break; + default: s = "???"; break; + } + seq_printf(m, "%-16s %s\n", "type", s); + if ((s = cinfo->version[VER_DRIVER]) != NULL) + seq_printf(m, "%-16s %s\n", "ver_driver", s); + if ((s = cinfo->version[VER_CARDTYPE]) != NULL) + seq_printf(m, "%-16s %s\n", "ver_cardtype", s); + if ((s = cinfo->version[VER_SERIAL]) != NULL) + seq_printf(m, "%-16s %s\n", "ver_serial", s); + + if (card->cardtype != avm_m1) { + flag = ((u8 *)(ctrl->profile.manu))[3]; + if (flag) + seq_printf(m, "%-16s%s%s%s%s%s%s%s\n", + "protocol", + (flag & 0x01) ? " DSS1" : "", + (flag & 0x02) ? " CT1" : "", + (flag & 0x04) ? " VN3" : "", + (flag & 0x08) ? " NI1" : "", + (flag & 0x10) ? " AUSTEL" : "", + (flag & 0x20) ? " ESS" : "", + (flag & 0x40) ? " 1TR6" : "" + ); + } + if (card->cardtype != avm_m1) { + flag = ((u8 *)(ctrl->profile.manu))[5]; + if (flag) + seq_printf(m, "%-16s%s%s%s%s\n", + "linetype", + (flag & 0x01) ? " point to point" : "", + (flag & 0x02) ? " point to multipoint" : "", + (flag & 0x08) ? " leased line without D-channel" : "", + (flag & 0x04) ? " leased line with D-channel" : "" + ); + } + seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname); + + + spin_lock_irqsave(&card->lock, flags); + + txoff = (dma_addr_t)b1dma_readl(card, AMCC_TXPTR)-card->dma->sendbuf.dmaaddr; + txlen = b1dma_readl(card, AMCC_TXLEN); + + rxoff = (dma_addr_t)b1dma_readl(card, AMCC_RXPTR)-card->dma->recvbuf.dmaaddr; + rxlen = b1dma_readl(card, AMCC_RXLEN); + + csr = b1dma_readl(card, AMCC_INTCSR); + + spin_unlock_irqrestore(&card->lock, flags); + + seq_printf(m, "%-16s 0x%lx\n", "csr (cached)", (unsigned long)card->csr); + seq_printf(m, "%-16s 0x%lx\n", "csr", (unsigned long)csr); + seq_printf(m, "%-16s %lu\n", "txoff", (unsigned long)txoff); + seq_printf(m, "%-16s %lu\n", "txlen", (unsigned long)txlen); + seq_printf(m, "%-16s %lu\n", "rxoff", (unsigned long)rxoff); + seq_printf(m, "%-16s %lu\n", "rxlen", (unsigned long)rxlen); + + return 0; +} +EXPORT_SYMBOL(b1dma_proc_show); + +/* ------------------------------------------------------------- */ + +EXPORT_SYMBOL(b1dma_reset); +EXPORT_SYMBOL(t1pci_detect); +EXPORT_SYMBOL(b1pciv4_detect); +EXPORT_SYMBOL(b1dma_interrupt); + +EXPORT_SYMBOL(b1dma_load_firmware); +EXPORT_SYMBOL(b1dma_reset_ctr); +EXPORT_SYMBOL(b1dma_register_appl); +EXPORT_SYMBOL(b1dma_release_appl); +EXPORT_SYMBOL(b1dma_send_message); + +static int __init b1dma_init(void) +{ + char *p; + char rev[32]; + + if ((p = strchr(revision, ':')) != NULL && p[1]) { + strlcpy(rev, p + 2, sizeof(rev)); + if ((p = strchr(rev, '$')) != NULL && p > rev) + *(p - 1) = 0; + } else + strcpy(rev, "1.0"); + + printk(KERN_INFO "b1dma: revision %s\n", rev); + + return 0; +} + +static void __exit b1dma_exit(void) +{ +} + +module_init(b1dma_init); +module_exit(b1dma_exit); |