| /* |
| * A driver for the PCMCIA Smartcard Reader "Omnikey CardMan Mobile 4000" |
| * |
| * cm4000_cs.c support.linux@omnikey.com |
| * |
| * Tue Oct 23 11:32:43 GMT 2001 herp - cleaned up header files |
| * Sun Jan 20 10:11:15 MET 2002 herp - added modversion header files |
| * Thu Nov 14 16:34:11 GMT 2002 mh - added PPS functionality |
| * Tue Nov 19 16:36:27 GMT 2002 mh - added SUSPEND/RESUME functionailty |
| * Wed Jul 28 12:55:01 CEST 2004 mh - kernel 2.6 adjustments |
| * |
| * current version: 2.4.0gm4 |
| * |
| * (C) 2000,2001,2002,2003,2004 Omnikey AG |
| * |
| * (C) 2005-2006 Harald Welte <laforge@gnumonks.org> |
| * - Adhere to Kernel CodingStyle |
| * - Port to 2.6.13 "new" style PCMCIA |
| * - Check for copy_{from,to}_user return values |
| * - Use nonseekable_open() |
| * - add class interface for udev device creation |
| * |
| * All rights reserved. Licensed under dual BSD/GPL license. |
| */ |
| |
| /* #define PCMCIA_DEBUG 6 */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/init.h> |
| #include <linux/fs.h> |
| #include <linux/delay.h> |
| #include <linux/bitrev.h> |
| #include <linux/smp_lock.h> |
| #include <linux/uaccess.h> |
| #include <linux/io.h> |
| |
| #include <pcmcia/cs_types.h> |
| #include <pcmcia/cs.h> |
| #include <pcmcia/cistpl.h> |
| #include <pcmcia/cisreg.h> |
| #include <pcmcia/ciscode.h> |
| #include <pcmcia/ds.h> |
| |
| #include <linux/cm4000_cs.h> |
| |
| /* #define ATR_CSUM */ |
| |
| #ifdef PCMCIA_DEBUG |
| #define reader_to_dev(x) (&handle_to_dev(x->p_dev)) |
| static int pc_debug = PCMCIA_DEBUG; |
| module_param(pc_debug, int, 0600); |
| #define DEBUGP(n, rdr, x, args...) do { \ |
| if (pc_debug >= (n)) \ |
| dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \ |
| __func__ , ## args); \ |
| } while (0) |
| #else |
| #define DEBUGP(n, rdr, x, args...) |
| #endif |
| static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte"; |
| |
| #define T_1SEC (HZ) |
| #define T_10MSEC msecs_to_jiffies(10) |
| #define T_20MSEC msecs_to_jiffies(20) |
| #define T_40MSEC msecs_to_jiffies(40) |
| #define T_50MSEC msecs_to_jiffies(50) |
| #define T_100MSEC msecs_to_jiffies(100) |
| #define T_500MSEC msecs_to_jiffies(500) |
| |
| static void cm4000_release(struct pcmcia_device *link); |
| |
| static int major; /* major number we get from the kernel */ |
| |
| /* note: the first state has to have number 0 always */ |
| |
| #define M_FETCH_ATR 0 |
| #define M_TIMEOUT_WAIT 1 |
| #define M_READ_ATR_LEN 2 |
| #define M_READ_ATR 3 |
| #define M_ATR_PRESENT 4 |
| #define M_BAD_CARD 5 |
| #define M_CARDOFF 6 |
| |
| #define LOCK_IO 0 |
| #define LOCK_MONITOR 1 |
| |
| #define IS_AUTOPPS_ACT 6 |
| #define IS_PROCBYTE_PRESENT 7 |
| #define IS_INVREV 8 |
| #define IS_ANY_T0 9 |
| #define IS_ANY_T1 10 |
| #define IS_ATR_PRESENT 11 |
| #define IS_ATR_VALID 12 |
| #define IS_CMM_ABSENT 13 |
| #define IS_BAD_LENGTH 14 |
| #define IS_BAD_CSUM 15 |
| #define IS_BAD_CARD 16 |
| |
| #define REG_FLAGS0(x) (x + 0) |
| #define REG_FLAGS1(x) (x + 1) |
| #define REG_NUM_BYTES(x) (x + 2) |
| #define REG_BUF_ADDR(x) (x + 3) |
| #define REG_BUF_DATA(x) (x + 4) |
| #define REG_NUM_SEND(x) (x + 5) |
| #define REG_BAUDRATE(x) (x + 6) |
| #define REG_STOPBITS(x) (x + 7) |
| |
| struct cm4000_dev { |
| struct pcmcia_device *p_dev; |
| dev_node_t node; /* OS node (major,minor) */ |
| |
| unsigned char atr[MAX_ATR]; |
| unsigned char rbuf[512]; |
| unsigned char sbuf[512]; |
| |
| wait_queue_head_t devq; /* when removing cardman must not be |
| zeroed! */ |
| |
| wait_queue_head_t ioq; /* if IO is locked, wait on this Q */ |
| wait_queue_head_t atrq; /* wait for ATR valid */ |
| wait_queue_head_t readq; /* used by write to wake blk.read */ |
| |
| /* warning: do not move this fields. |
| * initialising to zero depends on it - see ZERO_DEV below. */ |
| unsigned char atr_csum; |
| unsigned char atr_len_retry; |
| unsigned short atr_len; |
| unsigned short rlen; /* bytes avail. after write */ |
| unsigned short rpos; /* latest read pos. write zeroes */ |
| unsigned char procbyte; /* T=0 procedure byte */ |
| unsigned char mstate; /* state of card monitor */ |
| unsigned char cwarn; /* slow down warning */ |
| unsigned char flags0; /* cardman IO-flags 0 */ |
| unsigned char flags1; /* cardman IO-flags 1 */ |
| unsigned int mdelay; /* variable monitor speeds, in jiffies */ |
| |
| unsigned int baudv; /* baud value for speed */ |
| unsigned char ta1; |
| unsigned char proto; /* T=0, T=1, ... */ |
| unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent |
| access */ |
| |
| unsigned char pts[4]; |
| |
| struct timer_list timer; /* used to keep monitor running */ |
| int monitor_running; |
| }; |
| |
| #define ZERO_DEV(dev) \ |
| memset(&dev->atr_csum,0, \ |
| sizeof(struct cm4000_dev) - \ |
| offsetof(struct cm4000_dev, atr_csum)) |
| |
| static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; |
| static struct class *cmm_class; |
| |
| /* This table doesn't use spaces after the comma between fields and thus |
| * violates CodingStyle. However, I don't really think wrapping it around will |
| * make it any clearer to read -HW */ |
| static unsigned char fi_di_table[10][14] = { |
| /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ |
| /*DI */ |
| /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, |
| /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11}, |
| /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11}, |
| /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3}, |
| /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4}, |
| /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5}, |
| /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6}, |
| /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, |
| /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8}, |
| /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9} |
| }; |
| |
| #ifndef PCMCIA_DEBUG |
| #define xoutb outb |
| #define xinb inb |
| #else |
| static inline void xoutb(unsigned char val, unsigned short port) |
| { |
| if (pc_debug >= 7) |
| printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port); |
| outb(val, port); |
| } |
| static inline unsigned char xinb(unsigned short port) |
| { |
| unsigned char val; |
| |
| val = inb(port); |
| if (pc_debug >= 7) |
| printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port); |
| |
| return val; |
| } |
| #endif |
| |
| static inline unsigned char invert_revert(unsigned char ch) |
| { |
| return bitrev8(~ch); |
| } |
| |
| static void str_invert_revert(unsigned char *b, int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) |
| b[i] = invert_revert(b[i]); |
| } |
| |
| #define ATRLENCK(dev,pos) \ |
| if (pos>=dev->atr_len || pos>=MAX_ATR) \ |
| goto return_0; |
| |
| static unsigned int calc_baudv(unsigned char fidi) |
| { |
| unsigned int wcrcf, wbrcf, fi_rfu, di_rfu; |
| |
| fi_rfu = 372; |
| di_rfu = 1; |
| |
| /* FI */ |
| switch ((fidi >> 4) & 0x0F) { |
| case 0x00: |
| wcrcf = 372; |
| break; |
| case 0x01: |
| wcrcf = 372; |
| break; |
| case 0x02: |
| wcrcf = 558; |
| break; |
| case 0x03: |
| wcrcf = 744; |
| break; |
| case 0x04: |
| wcrcf = 1116; |
| break; |
| case 0x05: |
| wcrcf = 1488; |
| break; |
| case 0x06: |
| wcrcf = 1860; |
| break; |
| case 0x07: |
| wcrcf = fi_rfu; |
| break; |
| case 0x08: |
| wcrcf = fi_rfu; |
| break; |
| case 0x09: |
| wcrcf = 512; |
| break; |
| case 0x0A: |
| wcrcf = 768; |
| break; |
| case 0x0B: |
| wcrcf = 1024; |
| break; |
| case 0x0C: |
| wcrcf = 1536; |
| break; |
| case 0x0D: |
| wcrcf = 2048; |
| break; |
| default: |
| wcrcf = fi_rfu; |
| break; |
| } |
| |
| /* DI */ |
| switch (fidi & 0x0F) { |
| case 0x00: |
| wbrcf = di_rfu; |
| break; |
| case 0x01: |
| wbrcf = 1; |
| break; |
| case 0x02: |
| wbrcf = 2; |
| break; |
| case 0x03: |
| wbrcf = 4; |
| break; |
| case 0x04: |
| wbrcf = 8; |
| break; |
| case 0x05: |
| wbrcf = 16; |
| break; |
| case 0x06: |
| wbrcf = 32; |
| break; |
| case 0x07: |
| wbrcf = di_rfu; |
| break; |
| case 0x08: |
| wbrcf = 12; |
| break; |
| case 0x09: |
| wbrcf = 20; |
| break; |
| default: |
| wbrcf = di_rfu; |
| break; |
| } |
| |
| return (wcrcf / wbrcf); |
| } |
| |
| static unsigned short io_read_num_rec_bytes(unsigned int iobase, |
| unsigned short *s) |
| { |
| unsigned short tmp; |
| |
| tmp = *s = 0; |
| do { |
| *s = tmp; |
| tmp = inb(REG_NUM_BYTES(iobase)) | |
| (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0); |
| } while (tmp != *s); |
| |
| return *s; |
| } |
| |
| static int parse_atr(struct cm4000_dev *dev) |
| { |
| unsigned char any_t1, any_t0; |
| unsigned char ch, ifno; |
| int ix, done; |
| |
| DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len); |
| |
| if (dev->atr_len < 3) { |
| DEBUGP(5, dev, "parse_atr: atr_len < 3\n"); |
| return 0; |
| } |
| |
| if (dev->atr[0] == 0x3f) |
| set_bit(IS_INVREV, &dev->flags); |
| else |
| clear_bit(IS_INVREV, &dev->flags); |
| ix = 1; |
| ifno = 1; |
| ch = dev->atr[1]; |
| dev->proto = 0; /* XXX PROTO */ |
| any_t1 = any_t0 = done = 0; |
| dev->ta1 = 0x11; /* defaults to 9600 baud */ |
| do { |
| if (ifno == 1 && (ch & 0x10)) { |
| /* read first interface byte and TA1 is present */ |
| dev->ta1 = dev->atr[2]; |
| DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1); |
| ifno++; |
| } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */ |
| dev->ta1 = 0x11; |
| ifno++; |
| } |
| |
| DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0); |
| ix += ((ch & 0x10) >> 4) /* no of int.face chars */ |
| +((ch & 0x20) >> 5) |
| + ((ch & 0x40) >> 6) |
| + ((ch & 0x80) >> 7); |
| /* ATRLENCK(dev,ix); */ |
| if (ch & 0x80) { /* TDi */ |
| ch = dev->atr[ix]; |
| if ((ch & 0x0f)) { |
| any_t1 = 1; |
| DEBUGP(5, dev, "card is capable of T=1\n"); |
| } else { |
| any_t0 = 1; |
| DEBUGP(5, dev, "card is capable of T=0\n"); |
| } |
| } else |
| done = 1; |
| } while (!done); |
| |
| DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n", |
| ix, dev->atr[1] & 15, any_t1); |
| if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) { |
| DEBUGP(5, dev, "length error\n"); |
| return 0; |
| } |
| if (any_t0) |
| set_bit(IS_ANY_T0, &dev->flags); |
| |
| if (any_t1) { /* compute csum */ |
| dev->atr_csum = 0; |
| #ifdef ATR_CSUM |
| for (i = 1; i < dev->atr_len; i++) |
| dev->atr_csum ^= dev->atr[i]; |
| if (dev->atr_csum) { |
| set_bit(IS_BAD_CSUM, &dev->flags); |
| DEBUGP(5, dev, "bad checksum\n"); |
| goto return_0; |
| } |
| #endif |
| if (any_t0 == 0) |
| dev->proto = 1; /* XXX PROTO */ |
| set_bit(IS_ANY_T1, &dev->flags); |
| } |
| |
| return 1; |
| } |
| |
| struct card_fixup { |
| char atr[12]; |
| u_int8_t atr_len; |
| u_int8_t stopbits; |
| }; |
| |
| static struct card_fixup card_fixups[] = { |
| { /* ACOS */ |
| .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 }, |
| .atr_len = 7, |
| .stopbits = 0x03, |
| }, |
| { /* Motorola */ |
| .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07, |
| 0x41, 0x81, 0x81 }, |
| .atr_len = 11, |
| .stopbits = 0x04, |
| }, |
| }; |
| |
| static void set_cardparameter(struct cm4000_dev *dev) |
| { |
| int i; |
| unsigned int iobase = dev->p_dev->io.BasePort1; |
| u_int8_t stopbits = 0x02; /* ISO default */ |
| |
| DEBUGP(3, dev, "-> set_cardparameter\n"); |
| |
| dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8); |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1); |
| |
| /* set baudrate */ |
| xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase)); |
| |
| DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv, |
| ((dev->baudv - 1) & 0xFF)); |
| |
| /* set stopbits */ |
| for (i = 0; i < ARRAY_SIZE(card_fixups); i++) { |
| if (!memcmp(dev->atr, card_fixups[i].atr, |
| card_fixups[i].atr_len)) |
| stopbits = card_fixups[i].stopbits; |
| } |
| xoutb(stopbits, REG_STOPBITS(iobase)); |
| |
| DEBUGP(3, dev, "<- set_cardparameter\n"); |
| } |
| |
| static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq) |
| { |
| |
| unsigned long tmp, i; |
| unsigned short num_bytes_read; |
| unsigned char pts_reply[4]; |
| ssize_t rc; |
| unsigned int iobase = dev->p_dev->io.BasePort1; |
| |
| rc = 0; |
| |
| DEBUGP(3, dev, "-> set_protocol\n"); |
| DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, " |
| "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, " |
| "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol, |
| (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2, |
| ptsreq->pts3); |
| |
| /* Fill PTS structure */ |
| dev->pts[0] = 0xff; |
| dev->pts[1] = 0x00; |
| tmp = ptsreq->protocol; |
| while ((tmp = (tmp >> 1)) > 0) |
| dev->pts[1]++; |
| dev->proto = dev->pts[1]; /* Set new protocol */ |
| dev->pts[1] = (0x01 << 4) | (dev->pts[1]); |
| |
| /* Correct Fi/Di according to CM4000 Fi/Di table */ |
| DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1); |
| /* set Fi/Di according to ATR TA(1) */ |
| dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F]; |
| |
| /* Calculate PCK character */ |
| dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2]; |
| |
| DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n", |
| dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]); |
| |
| /* check card convention */ |
| if (test_bit(IS_INVREV, &dev->flags)) |
| str_invert_revert(dev->pts, 4); |
| |
| /* reset SM */ |
| xoutb(0x80, REG_FLAGS0(iobase)); |
| |
| /* Enable access to the message buffer */ |
| DEBUGP(5, dev, "Enable access to the messages buffer\n"); |
| dev->flags1 = 0x20 /* T_Active */ |
| | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */ |
| | ((dev->baudv >> 8) & 0x01); /* MSB-baud */ |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| |
| DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n", |
| dev->flags1); |
| |
| /* write challenge to the buffer */ |
| DEBUGP(5, dev, "Write challenge to buffer: "); |
| for (i = 0; i < 4; i++) { |
| xoutb(i, REG_BUF_ADDR(iobase)); |
| xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */ |
| #ifdef PCMCIA_DEBUG |
| if (pc_debug >= 5) |
| printk("0x%.2x ", dev->pts[i]); |
| } |
| if (pc_debug >= 5) |
| printk("\n"); |
| #else |
| } |
| #endif |
| |
| /* set number of bytes to write */ |
| DEBUGP(5, dev, "Set number of bytes to write\n"); |
| xoutb(0x04, REG_NUM_SEND(iobase)); |
| |
| /* Trigger CARDMAN CONTROLLER */ |
| xoutb(0x50, REG_FLAGS0(iobase)); |
| |
| /* Monitor progress */ |
| /* wait for xmit done */ |
| DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n"); |
| |
| for (i = 0; i < 100; i++) { |
| if (inb(REG_FLAGS0(iobase)) & 0x08) { |
| DEBUGP(5, dev, "NumRecBytes is valid\n"); |
| break; |
| } |
| mdelay(10); |
| } |
| if (i == 100) { |
| DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting " |
| "valid\n"); |
| rc = -EIO; |
| goto exit_setprotocol; |
| } |
| |
| DEBUGP(5, dev, "Reading NumRecBytes\n"); |
| for (i = 0; i < 100; i++) { |
| io_read_num_rec_bytes(iobase, &num_bytes_read); |
| if (num_bytes_read >= 4) { |
| DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read); |
| break; |
| } |
| mdelay(10); |
| } |
| |
| /* check whether it is a short PTS reply? */ |
| if (num_bytes_read == 3) |
| i = 0; |
| |
| if (i == 100) { |
| DEBUGP(5, dev, "Timeout reading num_bytes_read\n"); |
| rc = -EIO; |
| goto exit_setprotocol; |
| } |
| |
| DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n"); |
| xoutb(0x80, REG_FLAGS0(iobase)); |
| |
| /* Read PPS reply */ |
| DEBUGP(5, dev, "Read PPS reply\n"); |
| for (i = 0; i < num_bytes_read; i++) { |
| xoutb(i, REG_BUF_ADDR(iobase)); |
| pts_reply[i] = inb(REG_BUF_DATA(iobase)); |
| } |
| |
| #ifdef PCMCIA_DEBUG |
| DEBUGP(2, dev, "PTSreply: "); |
| for (i = 0; i < num_bytes_read; i++) { |
| if (pc_debug >= 5) |
| printk("0x%.2x ", pts_reply[i]); |
| } |
| printk("\n"); |
| #endif /* PCMCIA_DEBUG */ |
| |
| DEBUGP(5, dev, "Clear Tactive in Flags1\n"); |
| xoutb(0x20, REG_FLAGS1(iobase)); |
| |
| /* Compare ptsreq and ptsreply */ |
| if ((dev->pts[0] == pts_reply[0]) && |
| (dev->pts[1] == pts_reply[1]) && |
| (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) { |
| /* setcardparameter according to PPS */ |
| dev->baudv = calc_baudv(dev->pts[2]); |
| set_cardparameter(dev); |
| } else if ((dev->pts[0] == pts_reply[0]) && |
| ((dev->pts[1] & 0xef) == pts_reply[1]) && |
| ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) { |
| /* short PTS reply, set card parameter to default values */ |
| dev->baudv = calc_baudv(0x11); |
| set_cardparameter(dev); |
| } else |
| rc = -EIO; |
| |
| exit_setprotocol: |
| DEBUGP(3, dev, "<- set_protocol\n"); |
| return rc; |
| } |
| |
| static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev) |
| { |
| |
| /* note: statemachine is assumed to be reset */ |
| if (inb(REG_FLAGS0(iobase)) & 8) { |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| set_bit(IS_CMM_ABSENT, &dev->flags); |
| return 0; /* detect CMM = 1 -> failure */ |
| } |
| /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */ |
| xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase)); |
| if ((inb(REG_FLAGS0(iobase)) & 8) == 0) { |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| set_bit(IS_CMM_ABSENT, &dev->flags); |
| return 0; /* detect CMM=0 -> failure */ |
| } |
| /* clear detectCMM again by restoring original flags1 */ |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| return 1; |
| } |
| |
| static void terminate_monitor(struct cm4000_dev *dev) |
| { |
| |
| /* tell the monitor to stop and wait until |
| * it terminates. |
| */ |
| DEBUGP(3, dev, "-> terminate_monitor\n"); |
| wait_event_interruptible(dev->devq, |
| test_and_set_bit(LOCK_MONITOR, |
| (void *)&dev->flags)); |
| |
| /* now, LOCK_MONITOR has been set. |
| * allow a last cycle in the monitor. |
| * the monitor will indicate that it has |
| * finished by clearing this bit. |
| */ |
| DEBUGP(5, dev, "Now allow last cycle of monitor!\n"); |
| while (test_bit(LOCK_MONITOR, (void *)&dev->flags)) |
| msleep(25); |
| |
| DEBUGP(5, dev, "Delete timer\n"); |
| del_timer_sync(&dev->timer); |
| #ifdef PCMCIA_DEBUG |
| dev->monitor_running = 0; |
| #endif |
| |
| DEBUGP(3, dev, "<- terminate_monitor\n"); |
| } |
| |
| /* |
| * monitor the card every 50msec. as a side-effect, retrieve the |
| * atr once a card is inserted. another side-effect of retrieving the |
| * atr is that the card will be powered on, so there is no need to |
| * power on the card explictely from the application: the driver |
| * is already doing that for you. |
| */ |
| |
| static void monitor_card(unsigned long p) |
| { |
| struct cm4000_dev *dev = (struct cm4000_dev *) p; |
| unsigned int iobase = dev->p_dev->io.BasePort1; |
| unsigned short s; |
| struct ptsreq ptsreq; |
| int i, atrc; |
| |
| DEBUGP(7, dev, "-> monitor_card\n"); |
| |
| /* if someone has set the lock for us: we're done! */ |
| if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) { |
| DEBUGP(4, dev, "About to stop monitor\n"); |
| /* no */ |
| dev->rlen = |
| dev->rpos = |
| dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; |
| dev->mstate = M_FETCH_ATR; |
| clear_bit(LOCK_MONITOR, &dev->flags); |
| /* close et al. are sleeping on devq, so wake it */ |
| wake_up_interruptible(&dev->devq); |
| DEBUGP(2, dev, "<- monitor_card (we are done now)\n"); |
| return; |
| } |
| |
| /* try to lock io: if it is already locked, just add another timer */ |
| if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) { |
| DEBUGP(4, dev, "Couldn't get IO lock\n"); |
| goto return_with_timer; |
| } |
| |
| /* is a card/a reader inserted at all ? */ |
| dev->flags0 = xinb(REG_FLAGS0(iobase)); |
| DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0); |
| DEBUGP(7, dev, "smartcard present: %s\n", |
| dev->flags0 & 1 ? "yes" : "no"); |
| DEBUGP(7, dev, "cardman present: %s\n", |
| dev->flags0 == 0xff ? "no" : "yes"); |
| |
| if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| || dev->flags0 == 0xff) { /* no cardman inserted */ |
| /* no */ |
| dev->rlen = |
| dev->rpos = |
| dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; |
| dev->mstate = M_FETCH_ATR; |
| |
| dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */ |
| |
| if (dev->flags0 == 0xff) { |
| DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n"); |
| set_bit(IS_CMM_ABSENT, &dev->flags); |
| } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| DEBUGP(4, dev, "clear IS_CMM_ABSENT bit " |
| "(card is removed)\n"); |
| clear_bit(IS_CMM_ABSENT, &dev->flags); |
| } |
| |
| goto release_io; |
| } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| /* cardman and card present but cardman was absent before |
| * (after suspend with inserted card) */ |
| DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n"); |
| clear_bit(IS_CMM_ABSENT, &dev->flags); |
| } |
| |
| if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { |
| DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n"); |
| goto release_io; |
| } |
| |
| switch (dev->mstate) { |
| unsigned char flags0; |
| case M_CARDOFF: |
| DEBUGP(4, dev, "M_CARDOFF\n"); |
| flags0 = inb(REG_FLAGS0(iobase)); |
| if (flags0 & 0x02) { |
| /* wait until Flags0 indicate power is off */ |
| dev->mdelay = T_10MSEC; |
| } else { |
| /* Flags0 indicate power off and no card inserted now; |
| * Reset CARDMAN CONTROLLER */ |
| xoutb(0x80, REG_FLAGS0(iobase)); |
| |
| /* prepare for fetching ATR again: after card off ATR |
| * is read again automatically */ |
| dev->rlen = |
| dev->rpos = |
| dev->atr_csum = |
| dev->atr_len_retry = dev->cwarn = 0; |
| dev->mstate = M_FETCH_ATR; |
| |
| /* minimal gap between CARDOFF and read ATR is 50msec */ |
| dev->mdelay = T_50MSEC; |
| } |
| break; |
| case M_FETCH_ATR: |
| DEBUGP(4, dev, "M_FETCH_ATR\n"); |
| xoutb(0x80, REG_FLAGS0(iobase)); |
| DEBUGP(4, dev, "Reset BAUDV to 9600\n"); |
| dev->baudv = 0x173; /* 9600 */ |
| xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ |
| xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ |
| xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud |
| value */ |
| /* warm start vs. power on: */ |
| xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); |
| dev->mdelay = T_40MSEC; |
| dev->mstate = M_TIMEOUT_WAIT; |
| break; |
| case M_TIMEOUT_WAIT: |
| DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); |
| /* numRecBytes */ |
| io_read_num_rec_bytes(iobase, &dev->atr_len); |
| dev->mdelay = T_10MSEC; |
| dev->mstate = M_READ_ATR_LEN; |
| break; |
| case M_READ_ATR_LEN: |
| DEBUGP(4, dev, "M_READ_ATR_LEN\n"); |
| /* infinite loop possible, since there is no timeout */ |
| |
| #define MAX_ATR_LEN_RETRY 100 |
| |
| if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { |
| if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ |
| dev->mdelay = T_10MSEC; |
| dev->mstate = M_READ_ATR; |
| } |
| } else { |
| dev->atr_len = s; |
| dev->atr_len_retry = 0; /* set new timeout */ |
| } |
| |
| DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); |
| break; |
| case M_READ_ATR: |
| DEBUGP(4, dev, "M_READ_ATR\n"); |
| xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| for (i = 0; i < dev->atr_len; i++) { |
| xoutb(i, REG_BUF_ADDR(iobase)); |
| dev->atr[i] = inb(REG_BUF_DATA(iobase)); |
| } |
| /* Deactivate T_Active flags */ |
| DEBUGP(4, dev, "Deactivate T_Active flags\n"); |
| dev->flags1 = 0x01; |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| |
| /* atr is present (which doesnt mean it's valid) */ |
| set_bit(IS_ATR_PRESENT, &dev->flags); |
| if (dev->atr[0] == 0x03) |
| str_invert_revert(dev->atr, dev->atr_len); |
| atrc = parse_atr(dev); |
| if (atrc == 0) { /* atr invalid */ |
| dev->mdelay = 0; |
| dev->mstate = M_BAD_CARD; |
| } else { |
| dev->mdelay = T_50MSEC; |
| dev->mstate = M_ATR_PRESENT; |
| set_bit(IS_ATR_VALID, &dev->flags); |
| } |
| |
| if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { |
| DEBUGP(4, dev, "monitor_card: ATR valid\n"); |
| /* if ta1 == 0x11, no PPS necessary (default values) */ |
| /* do not do PPS with multi protocol cards */ |
| if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && |
| (dev->ta1 != 0x11) && |
| !(test_bit(IS_ANY_T0, &dev->flags) && |
| test_bit(IS_ANY_T1, &dev->flags))) { |
| DEBUGP(4, dev, "Perform AUTOPPS\n"); |
| set_bit(IS_AUTOPPS_ACT, &dev->flags); |
| ptsreq.protocol = ptsreq.protocol = |
| (0x01 << dev->proto); |
| ptsreq.flags = 0x01; |
| ptsreq.pts1 = 0x00; |
| ptsreq.pts2 = 0x00; |
| ptsreq.pts3 = 0x00; |
| if (set_protocol(dev, &ptsreq) == 0) { |
| DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); |
| clear_bit(IS_AUTOPPS_ACT, &dev->flags); |
| wake_up_interruptible(&dev->atrq); |
| } else { |
| DEBUGP(4, dev, "AUTOPPS failed: " |
| "repower using defaults\n"); |
| /* prepare for repowering */ |
| clear_bit(IS_ATR_PRESENT, &dev->flags); |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| dev->rlen = |
| dev->rpos = |
| dev->atr_csum = |
| dev->atr_len_retry = dev->cwarn = 0; |
| dev->mstate = M_FETCH_ATR; |
| |
| dev->mdelay = T_50MSEC; |
| } |
| } else { |
| /* for cards which use slightly different |
| * params (extra guard time) */ |
| set_cardparameter(dev); |
| if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) |
| DEBUGP(4, dev, "AUTOPPS already active " |
| "2nd try:use default values\n"); |
| if (dev->ta1 == 0x11) |
| DEBUGP(4, dev, "No AUTOPPS necessary " |
| "TA(1)==0x11\n"); |
| if (test_bit(IS_ANY_T0, &dev->flags) |
| && test_bit(IS_ANY_T1, &dev->flags)) |
| DEBUGP(4, dev, "Do NOT perform AUTOPPS " |
| "with multiprotocol cards\n"); |
| clear_bit(IS_AUTOPPS_ACT, &dev->flags); |
| wake_up_interruptible(&dev->atrq); |
| } |
| } else { |
| DEBUGP(4, dev, "ATR invalid\n"); |
| wake_up_interruptible(&dev->atrq); |
| } |
| break; |
| case M_BAD_CARD: |
| DEBUGP(4, dev, "M_BAD_CARD\n"); |
| /* slow down warning, but prompt immediately after insertion */ |
| if (dev->cwarn == 0 || dev->cwarn == 10) { |
| set_bit(IS_BAD_CARD, &dev->flags); |
| printk(KERN_WARNING MODULE_NAME ": device %s: ", |
| dev->node.dev_name); |
| if (test_bit(IS_BAD_CSUM, &dev->flags)) { |
| DEBUGP(4, dev, "ATR checksum (0x%.2x, should " |
| "be zero) failed\n", dev->atr_csum); |
| } |
| #ifdef PCMCIA_DEBUG |
| else if (test_bit(IS_BAD_LENGTH, &dev->flags)) { |
| DEBUGP(4, dev, "ATR length error\n"); |
| } else { |
| DEBUGP(4, dev, "card damaged or wrong way " |
| "inserted\n"); |
| } |
| #endif |
| dev->cwarn = 0; |
| wake_up_interruptible(&dev->atrq); /* wake open */ |
| } |
| dev->cwarn++; |
| dev->mdelay = T_100MSEC; |
| dev->mstate = M_FETCH_ATR; |
| break; |
| default: |
| DEBUGP(7, dev, "Unknown action\n"); |
| break; /* nothing */ |
| } |
| |
| release_io: |
| DEBUGP(7, dev, "release_io\n"); |
| clear_bit(LOCK_IO, &dev->flags); |
| wake_up_interruptible(&dev->ioq); /* whoever needs IO */ |
| |
| return_with_timer: |
| DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); |
| mod_timer(&dev->timer, jiffies + dev->mdelay); |
| clear_bit(LOCK_MONITOR, &dev->flags); |
| } |
| |
| /* Interface to userland (file_operations) */ |
| |
| static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, |
| loff_t *ppos) |
| { |
| struct cm4000_dev *dev = filp->private_data; |
| unsigned int iobase = dev->p_dev->io.BasePort1; |
| ssize_t rc; |
| int i, j, k; |
| |
| DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid); |
| |
| if (count == 0) /* according to manpage */ |
| return 0; |
| |
| if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
| test_bit(IS_CMM_ABSENT, &dev->flags)) |
| return -ENODEV; |
| |
| if (test_bit(IS_BAD_CSUM, &dev->flags)) |
| return -EIO; |
| |
| /* also see the note about this in cmm_write */ |
| if (wait_event_interruptible |
| (dev->atrq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| return -EAGAIN; |
| return -ERESTARTSYS; |
| } |
| |
| if (test_bit(IS_ATR_VALID, &dev->flags) == 0) |
| return -EIO; |
| |
| /* this one implements blocking IO */ |
| if (wait_event_interruptible |
| (dev->readq, |
| ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| return -EAGAIN; |
| return -ERESTARTSYS; |
| } |
| |
| /* lock io */ |
| if (wait_event_interruptible |
| (dev->ioq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| return -EAGAIN; |
| return -ERESTARTSYS; |
| } |
| |
| rc = 0; |
| dev->flags0 = inb(REG_FLAGS0(iobase)); |
| if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| || dev->flags0 == 0xff) { /* no cardman inserted */ |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| if (dev->flags0 & 1) { |
| set_bit(IS_CMM_ABSENT, &dev->flags); |
| rc = -ENODEV; |
| } |
| rc = -EIO; |
| goto release_io; |
| } |
| |
| DEBUGP(4, dev, "begin read answer\n"); |
| j = min(count, (size_t)(dev->rlen - dev->rpos)); |
| k = dev->rpos; |
| if (k + j > 255) |
| j = 256 - k; |
| DEBUGP(4, dev, "read1 j=%d\n", j); |
| for (i = 0; i < j; i++) { |
| xoutb(k++, REG_BUF_ADDR(iobase)); |
| dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); |
| } |
| j = min(count, (size_t)(dev->rlen - dev->rpos)); |
| if (k + j > 255) { |
| DEBUGP(4, dev, "read2 j=%d\n", j); |
| dev->flags1 |= 0x10; /* MSB buf addr set */ |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| for (; i < j; i++) { |
| xoutb(k++, REG_BUF_ADDR(iobase)); |
| dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); |
| } |
| } |
| |
| if (dev->proto == 0 && count > dev->rlen - dev->rpos) { |
| DEBUGP(4, dev, "T=0 and count > buffer\n"); |
| dev->rbuf[i] = dev->rbuf[i - 1]; |
| dev->rbuf[i - 1] = dev->procbyte; |
| j++; |
| } |
| count = j; |
| |
| dev->rpos = dev->rlen + 1; |
| |
| /* Clear T1Active */ |
| DEBUGP(4, dev, "Clear T1Active\n"); |
| dev->flags1 &= 0xdf; |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| |
| xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ |
| /* last check before exit */ |
| if (!io_detect_cm4000(iobase, dev)) |
| count = -ENODEV; |
| |
| if (test_bit(IS_INVREV, &dev->flags) && count > 0) |
| str_invert_revert(dev->rbuf, count); |
| |
| if (copy_to_user(buf, dev->rbuf, count)) |
| return -EFAULT; |
| |
| release_io: |
| clear_bit(LOCK_IO, &dev->flags); |
| wake_up_interruptible(&dev->ioq); |
| |
| DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n", |
| (rc < 0 ? rc : count)); |
| return rc < 0 ? rc : count; |
| } |
| |
| static ssize_t cmm_write(struct file *filp, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data; |
| unsigned int iobase = dev->p_dev->io.BasePort1; |
| unsigned short s; |
| unsigned char tmp; |
| unsigned char infolen; |
| unsigned char sendT0; |
| unsigned short nsend; |
| unsigned short nr; |
| ssize_t rc; |
| int i; |
| |
| DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); |
| |
| if (count == 0) /* according to manpage */ |
| return 0; |
| |
| if (dev->proto == 0 && count < 4) { |
| /* T0 must have at least 4 bytes */ |
| DEBUGP(4, dev, "T0 short write\n"); |
| return -EIO; |
| } |
| |
| nr = count & 0x1ff; /* max bytes to write */ |
| |
| sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; |
| |
| if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
| test_bit(IS_CMM_ABSENT, &dev->flags)) |
| return -ENODEV; |
| |
| if (test_bit(IS_BAD_CSUM, &dev->flags)) { |
| DEBUGP(4, dev, "bad csum\n"); |
| return -EIO; |
| } |
| |
| /* |
| * wait for atr to become valid. |
| * note: it is important to lock this code. if we dont, the monitor |
| * could be run between test_bit and the call to sleep on the |
| * atr-queue. if *then* the monitor detects atr valid, it will wake up |
| * any process on the atr-queue, *but* since we have been interrupted, |
| * we do not yet sleep on this queue. this would result in a missed |
| * wake_up and the calling process would sleep forever (until |
| * interrupted). also, do *not* restore_flags before sleep_on, because |
| * this could result in the same situation! |
| */ |
| if (wait_event_interruptible |
| (dev->atrq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| return -EAGAIN; |
| return -ERESTARTSYS; |
| } |
| |
| if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ |
| DEBUGP(4, dev, "invalid ATR\n"); |
| return -EIO; |
| } |
| |
| /* lock io */ |
| if (wait_event_interruptible |
| (dev->ioq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| return -EAGAIN; |
| return -ERESTARTSYS; |
| } |
| |
| if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) |
| return -EFAULT; |
| |
| rc = 0; |
| dev->flags0 = inb(REG_FLAGS0(iobase)); |
| if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| || dev->flags0 == 0xff) { /* no cardman inserted */ |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| if (dev->flags0 & 1) { |
| set_bit(IS_CMM_ABSENT, &dev->flags); |
| rc = -ENODEV; |
| } else { |
| DEBUGP(4, dev, "IO error\n"); |
| rc = -EIO; |
| } |
| goto release_io; |
| } |
| |
| xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| |
| if (!io_detect_cm4000(iobase, dev)) { |
| rc = -ENODEV; |
| goto release_io; |
| } |
| |
| /* reflect T=0 send/read mode in flags1 */ |
| dev->flags1 |= (sendT0); |
| |
| set_cardparameter(dev); |
| |
| /* dummy read, reset flag procedure received */ |
| tmp = inb(REG_FLAGS1(iobase)); |
| |
| dev->flags1 = 0x20 /* T_Active */ |
| | (sendT0) |
| | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ |
| | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ |
| DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| |
| /* xmit data */ |
| DEBUGP(4, dev, "Xmit data\n"); |
| for (i = 0; i < nr; i++) { |
| if (i >= 256) { |
| dev->flags1 = 0x20 /* T_Active */ |
| | (sendT0) /* SendT0 */ |
| /* inverse parity: */ |
| | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) |
| | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ |
| | 0x10; /* set address high */ |
| DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " |
| "high\n", dev->flags1); |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| } |
| if (test_bit(IS_INVREV, &dev->flags)) { |
| DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " |
| "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], |
| invert_revert(dev->sbuf[i])); |
| xoutb(i, REG_BUF_ADDR(iobase)); |
| xoutb(invert_revert(dev->sbuf[i]), |
| REG_BUF_DATA(iobase)); |
| } else { |
| xoutb(i, REG_BUF_ADDR(iobase)); |
| xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); |
| } |
| } |
| DEBUGP(4, dev, "Xmit done\n"); |
| |
| if (dev->proto == 0) { |
| /* T=0 proto: 0 byte reply */ |
| if (nr == 4) { |
| DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); |
| xoutb(i, REG_BUF_ADDR(iobase)); |
| if (test_bit(IS_INVREV, &dev->flags)) |
| xoutb(0xff, REG_BUF_DATA(iobase)); |
| else |
| xoutb(0x00, REG_BUF_DATA(iobase)); |
| } |
| |
| /* numSendBytes */ |
| if (sendT0) |
| nsend = nr; |
| else { |
| if (nr == 4) |
| nsend = 5; |
| else { |
| nsend = 5 + (unsigned char)dev->sbuf[4]; |
| if (dev->sbuf[4] == 0) |
| nsend += 0x100; |
| } |
| } |
| } else |
| nsend = nr; |
| |
| /* T0: output procedure byte */ |
| if (test_bit(IS_INVREV, &dev->flags)) { |
| DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " |
| "0x%.2x\n", invert_revert(dev->sbuf[1])); |
| xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); |
| } else { |
| DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); |
| xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); |
| } |
| |
| DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", |
| (unsigned char)(nsend & 0xff)); |
| xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); |
| |
| DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", |
| 0x40 /* SM_Active */ |
| | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ |
| |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ |
| |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); |
| xoutb(0x40 /* SM_Active */ |
| | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ |
| |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ |
| |(nsend & 0x100) >> 8, /* MSB numSendBytes */ |
| REG_FLAGS0(iobase)); |
| |
| /* wait for xmit done */ |
| if (dev->proto == 1) { |
| DEBUGP(4, dev, "Wait for xmit done\n"); |
| for (i = 0; i < 1000; i++) { |
| if (inb(REG_FLAGS0(iobase)) & 0x08) |
| break; |
| msleep_interruptible(10); |
| } |
| if (i == 1000) { |
| DEBUGP(4, dev, "timeout waiting for xmit done\n"); |
| rc = -EIO; |
| goto release_io; |
| } |
| } |
| |
| /* T=1: wait for infoLen */ |
| |
| infolen = 0; |
| if (dev->proto) { |
| /* wait until infoLen is valid */ |
| for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ |
| io_read_num_rec_bytes(iobase, &s); |
| if (s >= 3) { |
| infolen = inb(REG_FLAGS1(iobase)); |
| DEBUGP(4, dev, "infolen=%d\n", infolen); |
| break; |
| } |
| msleep_interruptible(10); |
| } |
| if (i == 6000) { |
| DEBUGP(4, dev, "timeout waiting for infoLen\n"); |
| rc = -EIO; |
| goto release_io; |
| } |
| } else |
| clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); |
| |
| /* numRecBytes | bit9 of numRecytes */ |
| io_read_num_rec_bytes(iobase, &dev->rlen); |
| for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ |
| if (dev->proto) { |
| if (dev->rlen >= infolen + 4) |
| break; |
| } |
| msleep_interruptible(10); |
| /* numRecBytes | bit9 of numRecytes */ |
| io_read_num_rec_bytes(iobase, &s); |
| if (s > dev->rlen) { |
| DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); |
| i = 0; /* reset timeout */ |
| dev->rlen = s; |
| } |
| /* T=0: we are done when numRecBytes doesn't |
| * increment any more and NoProcedureByte |
| * is set and numRecBytes == bytes sent + 6 |
| * (header bytes + data + 1 for sw2) |
| * except when the card replies an error |
| * which means, no data will be sent back. |
| */ |
| else if (dev->proto == 0) { |
| if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { |
| /* no procedure byte received since last read */ |
| DEBUGP(1, dev, "NoProcedure byte set\n"); |
| /* i=0; */ |
| } else { |
| /* procedure byte received since last read */ |
| DEBUGP(1, dev, "NoProcedure byte unset " |
| "(reset timeout)\n"); |
| dev->procbyte = inb(REG_FLAGS1(iobase)); |
| DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", |
| dev->procbyte); |
| i = 0; /* resettimeout */ |
| } |
| if (inb(REG_FLAGS0(iobase)) & 0x08) { |
| DEBUGP(1, dev, "T0Done flag (read reply)\n"); |
| break; |
| } |
| } |
| if (dev->proto) |
| infolen = inb(REG_FLAGS1(iobase)); |
| } |
| if (i == 600) { |
| DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); |
| rc = -EIO; |
| goto release_io; |
| } else { |
| if (dev->proto == 0) { |
| DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); |
| for (i = 0; i < 1000; i++) { |
| if (inb(REG_FLAGS0(iobase)) & 0x08) |
| break; |
| msleep_interruptible(10); |
| } |
| if (i == 1000) { |
| DEBUGP(1, dev, "timeout waiting for T0Done\n"); |
| rc = -EIO; |
| goto release_io; |
| } |
| |
| dev->procbyte = inb(REG_FLAGS1(iobase)); |
| DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", |
| dev->procbyte); |
| |
| io_read_num_rec_bytes(iobase, &dev->rlen); |
| DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); |
| |
| } |
| } |
| /* T=1: read offset=zero, T=0: read offset=after challenge */ |
| dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; |
| DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", |
| dev->rlen, dev->rpos, nr); |
| |
| release_io: |
| DEBUGP(4, dev, "Reset SM\n"); |
| xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| |
| if (rc < 0) { |
| DEBUGP(4, dev, "Write failed but clear T_Active\n"); |
| dev->flags1 &= 0xdf; |
| xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| } |
| |
| clear_bit(LOCK_IO, &dev->flags); |
| wake_up_interruptible(&dev->ioq); |
| wake_up_interruptible(&dev->readq); /* tell read we have data */ |
| |
| /* ITSEC E2: clear write buffer */ |
| memset((char *)dev->sbuf, 0, 512); |
| |
| /* return error or actually written bytes */ |
| DEBUGP(2, dev, "<- cmm_write\n"); |
| return rc < 0 ? rc : nr; |
| } |
| |
| static void start_monitor(struct cm4000_dev *dev) |
| { |
| DEBUGP(3, dev, "-> start_monitor\n"); |
| if (!dev->monitor_running) { |
| DEBUGP(5, dev, "create, init and add timer\n"); |
| setup_timer(&dev->timer, monitor_card, (unsigned long)dev); |
| dev->monitor_running = 1; |
| mod_timer(&dev->timer, jiffies); |
| } else |
| DEBUGP(5, dev, "monitor already running\n"); |
| DEBUGP(3, dev, "<- start_monitor\n"); |
| } |
| |
| static void stop_monitor(struct cm4000_dev *dev) |
| { |
| DEBUGP(3, dev, "-> stop_monitor\n"); |
| if (dev->monitor_running) { |
| DEBUGP(5, dev, "stopping monitor\n"); |
| terminate_monitor(dev); |
| /* reset monitor SM */ |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| clear_bit(IS_ATR_PRESENT, &dev->flags); |
| } else |
| DEBUGP(5, dev, "monitor already stopped\n"); |
| DEBUGP(3, dev, "<- stop_monitor\n"); |
| } |
| |
| static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
| { |
| struct cm4000_dev *dev = filp->private_data; |
| unsigned int iobase = dev->p_dev->io.BasePort1; |
| struct inode *inode = filp->f_path.dentry->d_inode; |
| struct pcmcia_device *link; |
| int size; |
| int rc; |
| void __user *argp = (void __user *)arg; |
| #ifdef PCMCIA_DEBUG |
| char *ioctl_names[CM_IOC_MAXNR + 1] = { |
| [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", |
| [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", |
| [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", |
| [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", |
| [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", |
| }; |
| #endif |
| DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), |
| iminor(inode), ioctl_names[_IOC_NR(cmd)]); |
| |
| lock_kernel(); |
| rc = -ENODEV; |
| link = dev_table[iminor(inode)]; |
| if (!pcmcia_dev_present(link)) { |
| DEBUGP(4, dev, "DEV_OK false\n"); |
| goto out; |
| } |
| |
| if (test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| DEBUGP(4, dev, "CMM_ABSENT flag set\n"); |
| goto out; |
| } |
| rc = -EINVAL; |
| |
| if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { |
| DEBUGP(4, dev, "ioctype mismatch\n"); |
| goto out; |
| } |
| if (_IOC_NR(cmd) > CM_IOC_MAXNR) { |
| DEBUGP(4, dev, "iocnr mismatch\n"); |
| goto out; |
| } |
| size = _IOC_SIZE(cmd); |
| rc = -EFAULT; |
| DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n", |
| _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd); |
| |
| if (_IOC_DIR(cmd) & _IOC_READ) { |
| if (!access_ok(VERIFY_WRITE, argp, size)) |
| goto out; |
| } |
| if (_IOC_DIR(cmd) & _IOC_WRITE) { |
| if (!access_ok(VERIFY_READ, argp, size)) |
| goto out; |
| } |
| rc = 0; |
| |
| switch (cmd) { |
| case CM_IOCGSTATUS: |
| DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); |
| { |
| int status; |
| |
| /* clear other bits, but leave inserted & powered as |
| * they are */ |
| status = dev->flags0 & 3; |
| if (test_bit(IS_ATR_PRESENT, &dev->flags)) |
| status |= CM_ATR_PRESENT; |
| if (test_bit(IS_ATR_VALID, &dev->flags)) |
| status |= CM_ATR_VALID; |
| if (test_bit(IS_CMM_ABSENT, &dev->flags)) |
| status |= CM_NO_READER; |
| if (test_bit(IS_BAD_CARD, &dev->flags)) |
| status |= CM_BAD_CARD; |
| if (copy_to_user(argp, &status, sizeof(int))) |
| rc = -EFAULT; |
| } |
| break; |
| case CM_IOCGATR: |
| DEBUGP(4, dev, "... in CM_IOCGATR\n"); |
| { |
| struct atreq __user *atreq = argp; |
| int tmp; |
| /* allow nonblocking io and being interrupted */ |
| if (wait_event_interruptible |
| (dev->atrq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) |
| != 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| rc = -EAGAIN; |
| else |
| rc = -ERESTARTSYS; |
| break; |
| } |
| |
| rc = -EFAULT; |
| if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { |
| tmp = -1; |
| if (copy_to_user(&(atreq->atr_len), &tmp, |
| sizeof(int))) |
| break; |
| } else { |
| if (copy_to_user(atreq->atr, dev->atr, |
| dev->atr_len)) |
| break; |
| |
| tmp = dev->atr_len; |
| if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) |
| break; |
| } |
| rc = 0; |
| break; |
| } |
| case CM_IOCARDOFF: |
| |
| #ifdef PCMCIA_DEBUG |
| DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); |
| if (dev->flags0 & 0x01) { |
| DEBUGP(4, dev, " Card inserted\n"); |
| } else { |
| DEBUGP(2, dev, " No card inserted\n"); |
| } |
| if (dev->flags0 & 0x02) { |
| DEBUGP(4, dev, " Card powered\n"); |
| } else { |
| DEBUGP(2, dev, " Card not powered\n"); |
| } |
| #endif |
| |
| /* is a card inserted and powered? */ |
| if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { |
| |
| /* get IO lock */ |
| if (wait_event_interruptible |
| (dev->ioq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) |
| == 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| rc = -EAGAIN; |
| else |
| rc = -ERESTARTSYS; |
| break; |
| } |
| /* Set Flags0 = 0x42 */ |
| DEBUGP(4, dev, "Set Flags0=0x42 \n"); |
| xoutb(0x42, REG_FLAGS0(iobase)); |
| clear_bit(IS_ATR_PRESENT, &dev->flags); |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| dev->mstate = M_CARDOFF; |
| clear_bit(LOCK_IO, &dev->flags); |
| if (wait_event_interruptible |
| (dev->atrq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != |
| 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| rc = -EAGAIN; |
| else |
| rc = -ERESTARTSYS; |
| break; |
| } |
| } |
| /* release lock */ |
| clear_bit(LOCK_IO, &dev->flags); |
| wake_up_interruptible(&dev->ioq); |
| |
| return 0; |
| case CM_IOCSPTS: |
| { |
| struct ptsreq krnptsreq; |
| |
| if (copy_from_user(&krnptsreq, argp, |
| sizeof(struct ptsreq))) { |
| rc = -EFAULT; |
| break; |
| } |
| |
| rc = 0; |
| DEBUGP(4, dev, "... in CM_IOCSPTS\n"); |
| /* wait for ATR to get valid */ |
| if (wait_event_interruptible |
| (dev->atrq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) |
| != 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| rc = -EAGAIN; |
| else |
| rc = -ERESTARTSYS; |
| break; |
| } |
| /* get IO lock */ |
| if (wait_event_interruptible |
| (dev->ioq, |
| ((filp->f_flags & O_NONBLOCK) |
| || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) |
| == 0)))) { |
| if (filp->f_flags & O_NONBLOCK) |
| rc = -EAGAIN; |
| else |
| rc = -ERESTARTSYS; |
| break; |
| } |
| |
| if ((rc = set_protocol(dev, &krnptsreq)) != 0) { |
| /* auto power_on again */ |
| dev->mstate = M_FETCH_ATR; |
| clear_bit(IS_ATR_VALID, &dev->flags); |
| } |
| /* release lock */ |
| clear_bit(LOCK_IO, &dev->flags); |
| wake_up_interruptible(&dev->ioq); |
| |
| } |
| break; |
| #ifdef PCMCIA_DEBUG |
| case CM_IOSDBGLVL: /* set debug log level */ |
| { |
| int old_pc_debug = 0; |
| |
| old_pc_debug = pc_debug; |
| if (copy_from_user(&pc_debug, argp, sizeof(int))) |
| rc = -EFAULT; |
| else if (old_pc_debug != pc_debug) |
| DEBUGP(0, dev, "Changed debug log level " |
| "to %i\n", pc_debug); |
| } |
| break; |
| #endif |
| default: |
| DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); |
| rc = -ENOTTY; |
| } |
| out: |
| unlock_kernel(); |
| return rc; |
| } |
| |
| static int cmm_open(struct inode *inode, struct file *filp) |
| { |
| struct cm4000_dev *dev; |
| struct pcmcia_device *link; |
| int minor = iminor(inode); |
| int ret; |
| |
| if (minor >= CM4000_MAX_DEV) |
| return -ENODEV; |
| |
| lock_kernel(); |
| link = dev_table[minor]; |
| if (link == NULL || !pcmcia_dev_present(link)) { |
| ret = -ENODEV; |
| goto out; |
| } |
| |
| if (link->open) { |
| ret = -EBUSY; |
| goto out; |
| } |
| |
| dev = link->priv; |
| filp->private_data = dev; |
| |
| DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", |
| imajor(inode), minor, current->comm, current->pid); |
| |
| /* init device variables, they may be "polluted" after close |
| * or, the device may never have been closed (i.e. open failed) |
| */ |
| |
| ZERO_DEV(dev); |
| |
| /* opening will always block since the |
| * monitor will be started by open, which |
| * means we have to wait for ATR becoming |
| * vaild = block until valid (or card |
| * inserted) |
| */ |
| if (filp->f_flags & O_NONBLOCK) { |
| ret = -EAGAIN; |
| goto out; |
| } |
| |
| dev->mdelay = T_50MSEC; |
| |
| /* start monitoring the cardstatus */ |
| start_monitor(dev); |
| |
| link->open = 1; /* only one open per device */ |
| |
| DEBUGP(2, dev, "<- cmm_open\n"); |
| ret = nonseekable_open(inode, filp); |
| out: |
| unlock_kernel(); |
| return ret; |
| } |
| |
| static int cmm_close(struct inode *inode, struct file *filp) |
| { |
| struct cm4000_dev *dev; |
| struct pcmcia_device *link; |
| int minor = iminor(inode); |
| |
| if (minor >= CM4000_MAX_DEV) |
| return -ENODEV; |
| |
| link = dev_table[minor]; |
| if (link == NULL) |
| return -ENODEV; |
| |
| dev = link->priv; |
| |
| DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", |
| imajor(inode), minor); |
| |
| stop_monitor(dev); |
| |
| ZERO_DEV(dev); |
| |
| link->open = 0; /* only one open per device */ |
| wake_up(&dev->devq); /* socket removed? */ |
| |
| DEBUGP(2, dev, "cmm_close\n"); |
| return 0; |
| } |
| |
| static void cmm_cm4000_release(struct pcmcia_device * link) |
| { |
| struct cm4000_dev *dev = link->priv; |
| |
| /* dont terminate the monitor, rather rely on |
| * close doing that for us. |
| */ |
| DEBUGP(3, dev, "-> cmm_cm4000_release\n"); |
| while (link->open) { |
| printk(KERN_INFO MODULE_NAME ": delaying release until " |
| "process has terminated\n"); |
| /* note: don't interrupt us: |
| * close the applications which own |
| * the devices _first_ ! |
| */ |
| wait_event(dev->devq, (link->open == 0)); |
| } |
| /* dev->devq=NULL; this cannot be zeroed earlier */ |
| DEBUGP(3, dev, "<- cmm_cm4000_release\n"); |
| return; |
| } |
| |
| /*==== Interface to PCMCIA Layer =======================================*/ |
| |
| static int cm4000_config_check(struct pcmcia_device *p_dev, |
| cistpl_cftable_entry_t *cfg, |
| void *priv_data) |
| { |
| if (!cfg->io.nwin) |
| return -ENODEV; |
| |
| /* Get the IOaddr */ |
| p_dev->io.BasePort1 = cfg->io.win[0].base; |
| p_dev->io.NumPorts1 = cfg->io.win[0].len; |
| p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| if (!(cfg->io.flags & CISTPL_IO_8BIT)) |
| p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| if (!(cfg->io.flags & CISTPL_IO_16BIT)) |
| p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK; |
| |
| return pcmcia_request_io(p_dev, &p_dev->io); |
| } |
| |
| static int cm4000_config(struct pcmcia_device * link, int devno) |
| { |
| struct cm4000_dev *dev; |
| |
| /* read the config-tuples */ |
| if (pcmcia_loop_config(link, cm4000_config_check, NULL)) |
| goto cs_release; |
| |
| link->conf.IntType = 00000002; |
| |
| if (pcmcia_request_configuration(link, &link->conf)) |
| goto cs_release; |
| |
| dev = link->priv; |
| sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); |
| dev->node.major = major; |
| dev->node.minor = devno; |
| dev->node.next = NULL; |
| link->dev_node = &dev->node; |
| |
| return 0; |
| |
| cs_release: |
| cm4000_release(link); |
| return -ENODEV; |
| } |
| |
| static int cm4000_suspend(struct pcmcia_device *link) |
| { |
| struct cm4000_dev *dev; |
| |
| dev = link->priv; |
| stop_monitor(dev); |
| |
| return 0; |
| } |
| |
| static int cm4000_resume(struct pcmcia_device *link) |
| { |
| struct cm4000_dev *dev; |
| |
| dev = link->priv; |
| if (link->open) |
| start_monitor(dev); |
| |
| return 0; |
| } |
| |
| static void cm4000_release(struct pcmcia_device *link) |
| { |
| cmm_cm4000_release(link); /* delay release until device closed */ |
| pcmcia_disable_device(link); |
| } |
| |
| static int cm4000_probe(struct pcmcia_device *link) |
| { |
| struct cm4000_dev *dev; |
| int i, ret; |
| |
| for (i = 0; i < CM4000_MAX_DEV; i++) |
| if (dev_table[i] == NULL) |
| break; |
| |
| if (i == CM4000_MAX_DEV) { |
| printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); |
| return -ENODEV; |
| } |
| |
| /* create a new cm4000_cs device */ |
| dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); |
| if (dev == NULL) |
| return -ENOMEM; |
| |
| dev->p_dev = link; |
| link->priv = dev; |
| link->conf.IntType = INT_MEMORY_AND_IO; |
| dev_table[i] = link; |
| |
| init_waitqueue_head(&dev->devq); |
| init_waitqueue_head(&dev->ioq); |
| init_waitqueue_head(&dev->atrq); |
| init_waitqueue_head(&dev->readq); |
| |
| ret = cm4000_config(link, i); |
| if (ret) { |
| dev_table[i] = NULL; |
| kfree(dev); |
| return ret; |
| } |
| |
| device_create_drvdata(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); |
| |
| return 0; |
| } |
| |
| static void cm4000_detach(struct pcmcia_device *link) |
| { |
| struct cm4000_dev *dev = link->priv; |
| int devno; |
| |
| /* find device */ |
| for (devno = 0; devno < CM4000_MAX_DEV; devno++) |
| if (dev_table[devno] == link) |
| break; |
| if (devno == CM4000_MAX_DEV) |
| return; |
| |
| stop_monitor(dev); |
| |
| cm4000_release(link); |
| |
| dev_table[devno] = NULL; |
| kfree(dev); |
| |
| device_destroy(cmm_class, MKDEV(major, devno)); |
| |
| return; |
| } |
| |
| static const struct file_operations cm4000_fops = { |
| .owner = THIS_MODULE, |
| .read = cmm_read, |
| .write = cmm_write, |
| .unlocked_ioctl = cmm_ioctl, |
| .open = cmm_open, |
| .release= cmm_close, |
| }; |
| |
| static struct pcmcia_device_id cm4000_ids[] = { |
| PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), |
| PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), |
| PCMCIA_DEVICE_NULL, |
| }; |
| MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); |
| |
| static struct pcmcia_driver cm4000_driver = { |
| .owner = THIS_MODULE, |
| .drv = { |
| .name = "cm4000_cs", |
| }, |
| .probe = cm4000_probe, |
| .remove = cm4000_detach, |
| .suspend = cm4000_suspend, |
| .resume = cm4000_resume, |
| .id_table = cm4000_ids, |
| }; |
| |
| static int __init cmm_init(void) |
| { |
| int rc; |
| |
| printk(KERN_INFO "%s\n", version); |
| |
| cmm_class = class_create(THIS_MODULE, "cardman_4000"); |
| if (IS_ERR(cmm_class)) |
| return PTR_ERR(cmm_class); |
| |
| major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); |
| if (major < 0) { |
| printk(KERN_WARNING MODULE_NAME |
| ": could not get major number\n"); |
| class_destroy(cmm_class); |
| return major; |
| } |
| |
| rc = pcmcia_register_driver(&cm4000_driver); |
| if (rc < 0) { |
| unregister_chrdev(major, DEVICE_NAME); |
| class_destroy(cmm_class); |
| return rc; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit cmm_exit(void) |
| { |
| printk(KERN_INFO MODULE_NAME ": unloading\n"); |
| pcmcia_unregister_driver(&cm4000_driver); |
| unregister_chrdev(major, DEVICE_NAME); |
| class_destroy(cmm_class); |
| }; |
| |
| module_init(cmm_init); |
| module_exit(cmm_exit); |
| MODULE_LICENSE("Dual BSD/GPL"); |