1 /*********************************************************************
5 * Description: Driver for the ALI M1535D and M1543C FIR Controller
6 * Status: Experimental.
7 * Author: Benjamin Kong <benjamin_kong@ali.com.tw>
8 * Created at: 2000/10/16 03:46PM
9 * Modified at: 2001/1/3 02:55PM
10 * Modified by: Benjamin Kong <benjamin_kong@ali.com.tw>
11 * Modified at: 2003/11/6 and support for ALi south-bridge chipsets M1563
12 * Modified by: Clear Zhang <clear_zhang@ali.com.tw>
14 * Copyright (c) 2000 Benjamin Kong <benjamin_kong@ali.com.tw>
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 ********************************************************************/
24 #include <linux/module.h>
26 #include <linux/kernel.h>
27 #include <linux/types.h>
28 #include <linux/skbuff.h>
29 #include <linux/netdevice.h>
30 #include <linux/ioport.h>
31 #include <linux/delay.h>
32 #include <linux/slab.h>
33 #include <linux/init.h>
34 #include <linux/rtnetlink.h>
35 #include <linux/serial_reg.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/platform_device.h>
41 #include <asm/byteorder.h>
43 #include <net/irda/wrapper.h>
44 #include <net/irda/irda.h>
45 #include <net/irda/irda_device.h>
49 #define CHIP_IO_EXTENT 8
50 #define BROKEN_DONGLE_ID
52 #define ALI_IRCC_DRIVER_NAME "ali-ircc"
54 /* Power Management */
55 static int ali_ircc_suspend(struct platform_device
*dev
, pm_message_t state
);
56 static int ali_ircc_resume(struct platform_device
*dev
);
58 static struct platform_driver ali_ircc_driver
= {
59 .suspend
= ali_ircc_suspend
,
60 .resume
= ali_ircc_resume
,
62 .name
= ALI_IRCC_DRIVER_NAME
,
66 /* Module parameters */
67 static int qos_mtt_bits
= 0x07; /* 1 ms or more */
69 /* Use BIOS settions by default, but user may supply module parameters */
70 static unsigned int io
[] = { ~0, ~0, ~0, ~0 };
71 static unsigned int irq
[] = { 0, 0, 0, 0 };
72 static unsigned int dma
[] = { 0, 0, 0, 0 };
74 static int ali_ircc_probe_53(ali_chip_t
*chip
, chipio_t
*info
);
75 static int ali_ircc_init_43(ali_chip_t
*chip
, chipio_t
*info
);
76 static int ali_ircc_init_53(ali_chip_t
*chip
, chipio_t
*info
);
78 /* These are the currently known ALi sourth-bridge chipsets, the only one difference
79 * is that M1543C doesn't support HP HDSL-3600
81 static ali_chip_t chips
[] =
83 { "M1543", { 0x3f0, 0x370 }, 0x51, 0x23, 0x20, 0x43, ali_ircc_probe_53
, ali_ircc_init_43
},
84 { "M1535", { 0x3f0, 0x370 }, 0x51, 0x23, 0x20, 0x53, ali_ircc_probe_53
, ali_ircc_init_53
},
85 { "M1563", { 0x3f0, 0x370 }, 0x51, 0x23, 0x20, 0x63, ali_ircc_probe_53
, ali_ircc_init_53
},
89 /* Max 4 instances for now */
90 static struct ali_ircc_cb
*dev_self
[] = { NULL
, NULL
, NULL
, NULL
};
93 static char *dongle_types
[] = {
97 "No dongle connected",
100 /* Some prototypes */
101 static int ali_ircc_open(int i
, chipio_t
*info
);
103 static int ali_ircc_close(struct ali_ircc_cb
*self
);
105 static int ali_ircc_setup(chipio_t
*info
);
106 static int ali_ircc_is_receiving(struct ali_ircc_cb
*self
);
107 static int ali_ircc_net_open(struct net_device
*dev
);
108 static int ali_ircc_net_close(struct net_device
*dev
);
109 static int ali_ircc_net_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
);
110 static void ali_ircc_change_speed(struct ali_ircc_cb
*self
, __u32 baud
);
111 static struct net_device_stats
*ali_ircc_net_get_stats(struct net_device
*dev
);
114 static int ali_ircc_sir_hard_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
115 static irqreturn_t
ali_ircc_sir_interrupt(struct ali_ircc_cb
*self
);
116 static void ali_ircc_sir_receive(struct ali_ircc_cb
*self
);
117 static void ali_ircc_sir_write_wakeup(struct ali_ircc_cb
*self
);
118 static int ali_ircc_sir_write(int iobase
, int fifo_size
, __u8
*buf
, int len
);
119 static void ali_ircc_sir_change_speed(struct ali_ircc_cb
*priv
, __u32 speed
);
122 static int ali_ircc_fir_hard_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
123 static void ali_ircc_fir_change_speed(struct ali_ircc_cb
*priv
, __u32 speed
);
124 static irqreturn_t
ali_ircc_fir_interrupt(struct ali_ircc_cb
*self
);
125 static int ali_ircc_dma_receive(struct ali_ircc_cb
*self
);
126 static int ali_ircc_dma_receive_complete(struct ali_ircc_cb
*self
);
127 static int ali_ircc_dma_xmit_complete(struct ali_ircc_cb
*self
);
128 static void ali_ircc_dma_xmit(struct ali_ircc_cb
*self
);
131 static int ali_ircc_read_dongle_id (int i
, chipio_t
*info
);
132 static void ali_ircc_change_dongle_speed(struct ali_ircc_cb
*priv
, int speed
);
134 /* ALi chip function */
135 static void SIR2FIR(int iobase
);
136 static void FIR2SIR(int iobase
);
137 static void SetCOMInterrupts(struct ali_ircc_cb
*self
, unsigned char enable
);
140 * Function ali_ircc_init ()
142 * Initialize chip. Find out whay kinds of chips we are dealing with
143 * and their configuation registers address
145 static int __init
ali_ircc_init(void)
154 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
156 ret
= platform_driver_register(&ali_ircc_driver
);
158 IRDA_ERROR("%s, Can't register driver!\n",
159 ALI_IRCC_DRIVER_NAME
);
165 /* Probe for all the ALi chipsets we know about */
166 for (chip
= chips
; chip
->name
; chip
++, i
++)
168 IRDA_DEBUG(2, "%s(), Probing for %s ...\n", __FUNCTION__
, chip
->name
);
170 /* Try all config registers for this chip */
171 for (cfg
=0; cfg
<2; cfg
++)
173 cfg_base
= chip
->cfg
[cfg
];
177 memset(&info
, 0, sizeof(chipio_t
));
178 info
.cfg_base
= cfg_base
;
179 info
.fir_base
= io
[i
];
184 /* Enter Configuration */
185 outb(chip
->entr1
, cfg_base
);
186 outb(chip
->entr2
, cfg_base
);
188 /* Select Logical Device 5 Registers (UART2) */
189 outb(0x07, cfg_base
);
190 outb(0x05, cfg_base
+1);
192 /* Read Chip Identification Register */
193 outb(chip
->cid_index
, cfg_base
);
194 reg
= inb(cfg_base
+1);
196 if (reg
== chip
->cid_value
)
198 IRDA_DEBUG(2, "%s(), Chip found at 0x%03x\n", __FUNCTION__
, cfg_base
);
200 outb(0x1F, cfg_base
);
201 revision
= inb(cfg_base
+1);
202 IRDA_DEBUG(2, "%s(), Found %s chip, revision=%d\n", __FUNCTION__
,
203 chip
->name
, revision
);
206 * If the user supplies the base address, then
207 * we init the chip, if not we probe the values
212 chip
->init(chip
, &info
);
216 chip
->probe(chip
, &info
);
219 if (ali_ircc_open(i
, &info
) == 0)
225 IRDA_DEBUG(2, "%s(), No %s chip at 0x%03x\n", __FUNCTION__
, chip
->name
, cfg_base
);
227 /* Exit configuration */
228 outb(0xbb, cfg_base
);
232 IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__
);
235 platform_driver_unregister(&ali_ircc_driver
);
241 * Function ali_ircc_cleanup ()
243 * Close all configured chips
246 static void __exit
ali_ircc_cleanup(void)
250 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
252 for (i
=0; i
< 4; i
++) {
254 ali_ircc_close(dev_self
[i
]);
257 platform_driver_unregister(&ali_ircc_driver
);
259 IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__
);
263 * Function ali_ircc_open (int i, chipio_t *inf)
265 * Open driver instance
268 static int ali_ircc_open(int i
, chipio_t
*info
)
270 struct net_device
*dev
;
271 struct ali_ircc_cb
*self
;
275 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
277 /* Set FIR FIFO and DMA Threshold */
278 if ((ali_ircc_setup(info
)) == -1)
281 dev
= alloc_irdadev(sizeof(*self
));
283 IRDA_ERROR("%s(), can't allocate memory for control block!\n",
290 spin_lock_init(&self
->lock
);
292 /* Need to store self somewhere */
297 self
->io
.cfg_base
= info
->cfg_base
; /* In ali_ircc_probe_53 assign */
298 self
->io
.fir_base
= info
->fir_base
; /* info->sir_base = info->fir_base */
299 self
->io
.sir_base
= info
->sir_base
; /* ALi SIR and FIR use the same address */
300 self
->io
.irq
= info
->irq
;
301 self
->io
.fir_ext
= CHIP_IO_EXTENT
;
302 self
->io
.dma
= info
->dma
;
303 self
->io
.fifo_size
= 16; /* SIR: 16, FIR: 32 Benjamin 2000/11/1 */
305 /* Reserve the ioports that we need */
306 if (!request_region(self
->io
.fir_base
, self
->io
.fir_ext
,
307 ALI_IRCC_DRIVER_NAME
)) {
308 IRDA_WARNING("%s(), can't get iobase of 0x%03x\n", __FUNCTION__
,
314 /* Initialize QoS for this device */
315 irda_init_max_qos_capabilies(&self
->qos
);
317 /* The only value we must override it the baudrate */
318 self
->qos
.baud_rate
.bits
= IR_9600
|IR_19200
|IR_38400
|IR_57600
|
319 IR_115200
|IR_576000
|IR_1152000
|(IR_4000000
<< 8); // benjamin 2000/11/8 05:27PM
321 self
->qos
.min_turn_time
.bits
= qos_mtt_bits
;
323 irda_qos_bits_to_value(&self
->qos
);
325 /* Max DMA buffer size needed = (data_size + 6) * (window_size) + 6; */
326 self
->rx_buff
.truesize
= 14384;
327 self
->tx_buff
.truesize
= 14384;
329 /* Allocate memory if needed */
331 dma_alloc_coherent(NULL
, self
->rx_buff
.truesize
,
332 &self
->rx_buff_dma
, GFP_KERNEL
);
333 if (self
->rx_buff
.head
== NULL
) {
337 memset(self
->rx_buff
.head
, 0, self
->rx_buff
.truesize
);
340 dma_alloc_coherent(NULL
, self
->tx_buff
.truesize
,
341 &self
->tx_buff_dma
, GFP_KERNEL
);
342 if (self
->tx_buff
.head
== NULL
) {
346 memset(self
->tx_buff
.head
, 0, self
->tx_buff
.truesize
);
348 self
->rx_buff
.in_frame
= FALSE
;
349 self
->rx_buff
.state
= OUTSIDE_FRAME
;
350 self
->tx_buff
.data
= self
->tx_buff
.head
;
351 self
->rx_buff
.data
= self
->rx_buff
.head
;
353 /* Reset Tx queue info */
354 self
->tx_fifo
.len
= self
->tx_fifo
.ptr
= self
->tx_fifo
.free
= 0;
355 self
->tx_fifo
.tail
= self
->tx_buff
.head
;
358 /* Keep track of module usage */
359 SET_MODULE_OWNER(dev
);
361 /* Override the network functions we need to use */
362 dev
->hard_start_xmit
= ali_ircc_sir_hard_xmit
;
363 dev
->open
= ali_ircc_net_open
;
364 dev
->stop
= ali_ircc_net_close
;
365 dev
->do_ioctl
= ali_ircc_net_ioctl
;
366 dev
->get_stats
= ali_ircc_net_get_stats
;
368 err
= register_netdev(dev
);
370 IRDA_ERROR("%s(), register_netdev() failed!\n", __FUNCTION__
);
373 IRDA_MESSAGE("IrDA: Registered device %s\n", dev
->name
);
375 /* Check dongle id */
376 dongle_id
= ali_ircc_read_dongle_id(i
, info
);
377 IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__
,
378 ALI_IRCC_DRIVER_NAME
, dongle_types
[dongle_id
]);
380 self
->io
.dongle_id
= dongle_id
;
382 IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__
);
387 dma_free_coherent(NULL
, self
->tx_buff
.truesize
,
388 self
->tx_buff
.head
, self
->tx_buff_dma
);
390 dma_free_coherent(NULL
, self
->rx_buff
.truesize
,
391 self
->rx_buff
.head
, self
->rx_buff_dma
);
393 release_region(self
->io
.fir_base
, self
->io
.fir_ext
);
402 * Function ali_ircc_close (self)
404 * Close driver instance
407 static int __exit
ali_ircc_close(struct ali_ircc_cb
*self
)
411 IRDA_DEBUG(4, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
413 IRDA_ASSERT(self
!= NULL
, return -1;);
415 iobase
= self
->io
.fir_base
;
417 /* Remove netdevice */
418 unregister_netdev(self
->netdev
);
420 /* Release the PORT that this driver is using */
421 IRDA_DEBUG(4, "%s(), Releasing Region %03x\n", __FUNCTION__
, self
->io
.fir_base
);
422 release_region(self
->io
.fir_base
, self
->io
.fir_ext
);
424 if (self
->tx_buff
.head
)
425 dma_free_coherent(NULL
, self
->tx_buff
.truesize
,
426 self
->tx_buff
.head
, self
->tx_buff_dma
);
428 if (self
->rx_buff
.head
)
429 dma_free_coherent(NULL
, self
->rx_buff
.truesize
,
430 self
->rx_buff
.head
, self
->rx_buff_dma
);
432 dev_self
[self
->index
] = NULL
;
433 free_netdev(self
->netdev
);
435 IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__
);
441 * Function ali_ircc_init_43 (chip, info)
443 * Initialize the ALi M1543 chip.
445 static int ali_ircc_init_43(ali_chip_t
*chip
, chipio_t
*info
)
447 /* All controller information like I/O address, DMA channel, IRQ
455 * Function ali_ircc_init_53 (chip, info)
457 * Initialize the ALi M1535 chip.
459 static int ali_ircc_init_53(ali_chip_t
*chip
, chipio_t
*info
)
461 /* All controller information like I/O address, DMA channel, IRQ
469 * Function ali_ircc_probe_53 (chip, info)
471 * Probes for the ALi M1535D or M1535
473 static int ali_ircc_probe_53(ali_chip_t
*chip
, chipio_t
*info
)
475 int cfg_base
= info
->cfg_base
;
478 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
480 /* Enter Configuration */
481 outb(chip
->entr1
, cfg_base
);
482 outb(chip
->entr2
, cfg_base
);
484 /* Select Logical Device 5 Registers (UART2) */
485 outb(0x07, cfg_base
);
486 outb(0x05, cfg_base
+1);
488 /* Read address control register */
489 outb(0x60, cfg_base
);
490 hi
= inb(cfg_base
+1);
491 outb(0x61, cfg_base
);
492 low
= inb(cfg_base
+1);
493 info
->fir_base
= (hi
<<8) + low
;
495 info
->sir_base
= info
->fir_base
;
497 IRDA_DEBUG(2, "%s(), probing fir_base=0x%03x\n", __FUNCTION__
, info
->fir_base
);
499 /* Read IRQ control register */
500 outb(0x70, cfg_base
);
501 reg
= inb(cfg_base
+1);
502 info
->irq
= reg
& 0x0f;
503 IRDA_DEBUG(2, "%s(), probing irq=%d\n", __FUNCTION__
, info
->irq
);
505 /* Read DMA channel */
506 outb(0x74, cfg_base
);
507 reg
= inb(cfg_base
+1);
508 info
->dma
= reg
& 0x07;
510 if(info
->dma
== 0x04)
511 IRDA_WARNING("%s(), No DMA channel assigned !\n", __FUNCTION__
);
513 IRDA_DEBUG(2, "%s(), probing dma=%d\n", __FUNCTION__
, info
->dma
);
515 /* Read Enabled Status */
516 outb(0x30, cfg_base
);
517 reg
= inb(cfg_base
+1);
518 info
->enabled
= (reg
& 0x80) && (reg
& 0x01);
519 IRDA_DEBUG(2, "%s(), probing enabled=%d\n", __FUNCTION__
, info
->enabled
);
521 /* Read Power Status */
522 outb(0x22, cfg_base
);
523 reg
= inb(cfg_base
+1);
524 info
->suspended
= (reg
& 0x20);
525 IRDA_DEBUG(2, "%s(), probing suspended=%d\n", __FUNCTION__
, info
->suspended
);
527 /* Exit configuration */
528 outb(0xbb, cfg_base
);
530 IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__
);
536 * Function ali_ircc_setup (info)
538 * Set FIR FIFO and DMA Threshold
539 * Returns non-negative on success.
542 static int ali_ircc_setup(chipio_t
*info
)
546 int iobase
= info
->fir_base
;
548 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
550 /* Locking comments :
551 * Most operations here need to be protected. We are called before
552 * the device instance is created in ali_ircc_open(), therefore
553 * nobody can bother us - Jean II */
555 /* Switch to FIR space */
559 outb(0x40, iobase
+FIR_MCR
); // benjamin 2000/11/30 11:45AM
561 /* Read FIR ID Version Register */
562 switch_bank(iobase
, BANK3
);
563 version
= inb(iobase
+FIR_ID_VR
);
565 /* Should be 0x00 in the M1535/M1535D */
568 IRDA_ERROR("%s, Wrong chip version %02x\n",
569 ALI_IRCC_DRIVER_NAME
, version
);
573 /* Set FIR FIFO Threshold Register */
574 switch_bank(iobase
, BANK1
);
575 outb(RX_FIFO_Threshold
, iobase
+FIR_FIFO_TR
);
577 /* Set FIR DMA Threshold Register */
578 outb(RX_DMA_Threshold
, iobase
+FIR_DMA_TR
);
581 switch_bank(iobase
, BANK2
);
582 outb(inb(iobase
+FIR_IRDA_CR
) | IRDA_CR_CRC
, iobase
+FIR_IRDA_CR
);
584 /* NDIS driver set TX Length here BANK2 Alias 3, Alias4*/
586 /* Switch to Bank 0 */
587 switch_bank(iobase
, BANK0
);
589 tmp
= inb(iobase
+FIR_LCR_B
);
590 tmp
&=~0x20; // disable SIP
591 tmp
|= 0x80; // these two steps make RX mode
593 outb(tmp
, iobase
+FIR_LCR_B
);
595 /* Disable Interrupt */
596 outb(0x00, iobase
+FIR_IER
);
599 /* Switch to SIR space */
602 IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n",
603 ALI_IRCC_DRIVER_NAME
);
605 /* Enable receive interrupts */
606 // outb(UART_IER_RDI, iobase+UART_IER); //benjamin 2000/11/23 01:25PM
607 // Turn on the interrupts in ali_ircc_net_open
609 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
615 * Function ali_ircc_read_dongle_id (int index, info)
617 * Try to read dongle indentification. This procedure needs to be executed
618 * once after power-on/reset. It also needs to be used whenever you suspect
619 * that the user may have plugged/unplugged the IrDA Dongle.
621 static int ali_ircc_read_dongle_id (int i
, chipio_t
*info
)
624 int cfg_base
= info
->cfg_base
;
626 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
628 /* Enter Configuration */
629 outb(chips
[i
].entr1
, cfg_base
);
630 outb(chips
[i
].entr2
, cfg_base
);
632 /* Select Logical Device 5 Registers (UART2) */
633 outb(0x07, cfg_base
);
634 outb(0x05, cfg_base
+1);
637 outb(0xf0, cfg_base
);
638 reg
= inb(cfg_base
+1);
639 dongle_id
= ((reg
>>6)&0x02) | ((reg
>>5)&0x01);
640 IRDA_DEBUG(2, "%s(), probing dongle_id=%d, dongle_types=%s\n", __FUNCTION__
,
641 dongle_id
, dongle_types
[dongle_id
]);
643 /* Exit configuration */
644 outb(0xbb, cfg_base
);
646 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
652 * Function ali_ircc_interrupt (irq, dev_id, regs)
654 * An interrupt from the chip has arrived. Time to do some work
657 static irqreturn_t
ali_ircc_interrupt(int irq
, void *dev_id
,
658 struct pt_regs
*regs
)
660 struct net_device
*dev
= (struct net_device
*) dev_id
;
661 struct ali_ircc_cb
*self
;
664 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
667 IRDA_WARNING("%s: irq %d for unknown device.\n",
668 ALI_IRCC_DRIVER_NAME
, irq
);
672 self
= (struct ali_ircc_cb
*) dev
->priv
;
674 spin_lock(&self
->lock
);
676 /* Dispatch interrupt handler for the current speed */
677 if (self
->io
.speed
> 115200)
678 ret
= ali_ircc_fir_interrupt(self
);
680 ret
= ali_ircc_sir_interrupt(self
);
682 spin_unlock(&self
->lock
);
684 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
688 * Function ali_ircc_fir_interrupt(irq, struct ali_ircc_cb *self)
690 * Handle MIR/FIR interrupt
693 static irqreturn_t
ali_ircc_fir_interrupt(struct ali_ircc_cb
*self
)
695 __u8 eir
, OldMessageCount
;
698 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
700 iobase
= self
->io
.fir_base
;
702 switch_bank(iobase
, BANK0
);
703 self
->InterruptID
= inb(iobase
+FIR_IIR
);
704 self
->BusStatus
= inb(iobase
+FIR_BSR
);
706 OldMessageCount
= (self
->LineStatus
+ 1) & 0x07;
707 self
->LineStatus
= inb(iobase
+FIR_LSR
);
708 //self->ier = inb(iobase+FIR_IER); 2000/12/1 04:32PM
709 eir
= self
->InterruptID
& self
->ier
; /* Mask out the interesting ones */
711 IRDA_DEBUG(1, "%s(), self->InterruptID = %x\n", __FUNCTION__
,self
->InterruptID
);
712 IRDA_DEBUG(1, "%s(), self->LineStatus = %x\n", __FUNCTION__
,self
->LineStatus
);
713 IRDA_DEBUG(1, "%s(), self->ier = %x\n", __FUNCTION__
,self
->ier
);
714 IRDA_DEBUG(1, "%s(), eir = %x\n", __FUNCTION__
,eir
);
716 /* Disable interrupts */
717 SetCOMInterrupts(self
, FALSE
);
719 /* Tx or Rx Interrupt */
723 if (self
->io
.direction
== IO_XMIT
) /* TX */
725 IRDA_DEBUG(1, "%s(), ******* IIR_EOM (Tx) *******\n", __FUNCTION__
);
727 if(ali_ircc_dma_xmit_complete(self
))
729 if (irda_device_txqueue_empty(self
->netdev
))
731 /* Prepare for receive */
732 ali_ircc_dma_receive(self
);
744 IRDA_DEBUG(1, "%s(), ******* IIR_EOM (Rx) *******\n", __FUNCTION__
);
746 if(OldMessageCount
> ((self
->LineStatus
+1) & 0x07))
748 self
->rcvFramesOverflow
= TRUE
;
749 IRDA_DEBUG(1, "%s(), ******* self->rcvFramesOverflow = TRUE ******** \n", __FUNCTION__
);
752 if (ali_ircc_dma_receive_complete(self
))
754 IRDA_DEBUG(1, "%s(), ******* receive complete ******** \n", __FUNCTION__
);
760 IRDA_DEBUG(1, "%s(), ******* Not receive complete ******** \n", __FUNCTION__
);
762 self
->ier
= IER_EOM
| IER_TIMER
;
767 /* Timer Interrupt */
768 else if (eir
& IIR_TIMER
)
770 if(OldMessageCount
> ((self
->LineStatus
+1) & 0x07))
772 self
->rcvFramesOverflow
= TRUE
;
773 IRDA_DEBUG(1, "%s(), ******* self->rcvFramesOverflow = TRUE ******* \n", __FUNCTION__
);
776 switch_bank(iobase
, BANK1
);
777 tmp
= inb(iobase
+FIR_CR
);
778 outb( tmp
& ~CR_TIMER_EN
, iobase
+FIR_CR
);
780 /* Check if this is a Tx timer interrupt */
781 if (self
->io
.direction
== IO_XMIT
)
783 ali_ircc_dma_xmit(self
);
785 /* Interrupt on EOM */
791 if(ali_ircc_dma_receive_complete(self
))
797 self
->ier
= IER_EOM
| IER_TIMER
;
802 /* Restore Interrupt */
803 SetCOMInterrupts(self
, TRUE
);
805 IRDA_DEBUG(1, "%s(), ----------------- End ---------------\n", __FUNCTION__
);
806 return IRQ_RETVAL(eir
);
810 * Function ali_ircc_sir_interrupt (irq, self, eir)
812 * Handle SIR interrupt
815 static irqreturn_t
ali_ircc_sir_interrupt(struct ali_ircc_cb
*self
)
820 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
822 iobase
= self
->io
.sir_base
;
824 iir
= inb(iobase
+UART_IIR
) & UART_IIR_ID
;
826 /* Clear interrupt */
827 lsr
= inb(iobase
+UART_LSR
);
829 IRDA_DEBUG(4, "%s(), iir=%02x, lsr=%02x, iobase=%#x\n", __FUNCTION__
,
835 IRDA_DEBUG(2, "%s(), RLSI\n", __FUNCTION__
);
838 /* Receive interrupt */
839 ali_ircc_sir_receive(self
);
842 if (lsr
& UART_LSR_THRE
)
844 /* Transmitter ready for data */
845 ali_ircc_sir_write_wakeup(self
);
849 IRDA_DEBUG(0, "%s(), unhandled IIR=%#x\n", __FUNCTION__
, iir
);
856 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
858 return IRQ_RETVAL(iir
);
863 * Function ali_ircc_sir_receive (self)
865 * Receive one frame from the infrared port
868 static void ali_ircc_sir_receive(struct ali_ircc_cb
*self
)
873 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
874 IRDA_ASSERT(self
!= NULL
, return;);
876 iobase
= self
->io
.sir_base
;
879 * Receive all characters in Rx FIFO, unwrap and unstuff them.
880 * async_unwrap_char will deliver all found frames
883 async_unwrap_char(self
->netdev
, &self
->stats
, &self
->rx_buff
,
884 inb(iobase
+UART_RX
));
886 /* Make sure we don't stay here too long */
887 if (boguscount
++ > 32) {
888 IRDA_DEBUG(2,"%s(), breaking!\n", __FUNCTION__
);
891 } while (inb(iobase
+UART_LSR
) & UART_LSR_DR
);
893 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
897 * Function ali_ircc_sir_write_wakeup (tty)
899 * Called by the driver when there's room for more data. If we have
900 * more packets to send, we send them here.
903 static void ali_ircc_sir_write_wakeup(struct ali_ircc_cb
*self
)
908 IRDA_ASSERT(self
!= NULL
, return;);
910 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
912 iobase
= self
->io
.sir_base
;
914 /* Finished with frame? */
915 if (self
->tx_buff
.len
> 0)
917 /* Write data left in transmit buffer */
918 actual
= ali_ircc_sir_write(iobase
, self
->io
.fifo_size
,
919 self
->tx_buff
.data
, self
->tx_buff
.len
);
920 self
->tx_buff
.data
+= actual
;
921 self
->tx_buff
.len
-= actual
;
927 /* We must wait until all data are gone */
928 while(!(inb(iobase
+UART_LSR
) & UART_LSR_TEMT
))
929 IRDA_DEBUG(1, "%s(), UART_LSR_THRE\n", __FUNCTION__
);
931 IRDA_DEBUG(1, "%s(), Changing speed! self->new_speed = %d\n", __FUNCTION__
, self
->new_speed
);
932 ali_ircc_change_speed(self
, self
->new_speed
);
935 // benjamin 2000/11/10 06:32PM
936 if (self
->io
.speed
> 115200)
938 IRDA_DEBUG(2, "%s(), ali_ircc_change_speed from UART_LSR_TEMT \n", __FUNCTION__
);
941 // SetCOMInterrupts(self, TRUE);
947 netif_wake_queue(self
->netdev
);
950 self
->stats
.tx_packets
++;
952 /* Turn on receive interrupts */
953 outb(UART_IER_RDI
, iobase
+UART_IER
);
956 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
959 static void ali_ircc_change_speed(struct ali_ircc_cb
*self
, __u32 baud
)
961 struct net_device
*dev
= self
->netdev
;
964 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
966 IRDA_DEBUG(2, "%s(), setting speed = %d \n", __FUNCTION__
, baud
);
968 /* This function *must* be called with irq off and spin-lock.
971 iobase
= self
->io
.fir_base
;
973 SetCOMInterrupts(self
, FALSE
); // 2000/11/24 11:43AM
975 /* Go to MIR, FIR Speed */
980 ali_ircc_fir_change_speed(self
, baud
);
982 /* Install FIR xmit handler*/
983 dev
->hard_start_xmit
= ali_ircc_fir_hard_xmit
;
985 /* Enable Interuupt */
986 self
->ier
= IER_EOM
; // benjamin 2000/11/20 07:24PM
988 /* Be ready for incomming frames */
989 ali_ircc_dma_receive(self
); // benajmin 2000/11/8 07:46PM not complete
991 /* Go to SIR Speed */
994 ali_ircc_sir_change_speed(self
, baud
);
996 /* Install SIR xmit handler*/
997 dev
->hard_start_xmit
= ali_ircc_sir_hard_xmit
;
1001 SetCOMInterrupts(self
, TRUE
); // 2000/11/24 11:43AM
1003 netif_wake_queue(self
->netdev
);
1005 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1008 static void ali_ircc_fir_change_speed(struct ali_ircc_cb
*priv
, __u32 baud
)
1012 struct ali_ircc_cb
*self
= (struct ali_ircc_cb
*) priv
;
1013 struct net_device
*dev
;
1015 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1017 IRDA_ASSERT(self
!= NULL
, return;);
1020 iobase
= self
->io
.fir_base
;
1022 IRDA_DEBUG(1, "%s(), self->io.speed = %d, change to speed = %d\n", __FUNCTION__
,self
->io
.speed
,baud
);
1024 /* Come from SIR speed */
1025 if(self
->io
.speed
<=115200)
1030 /* Update accounting for new speed */
1031 self
->io
.speed
= baud
;
1033 // Set Dongle Speed mode
1034 ali_ircc_change_dongle_speed(self
, baud
);
1036 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1040 * Function ali_sir_change_speed (self, speed)
1042 * Set speed of IrDA port to specified baudrate
1045 static void ali_ircc_sir_change_speed(struct ali_ircc_cb
*priv
, __u32 speed
)
1047 struct ali_ircc_cb
*self
= (struct ali_ircc_cb
*) priv
;
1048 unsigned long flags
;
1050 int fcr
; /* FIFO control reg */
1051 int lcr
; /* Line control reg */
1054 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1056 IRDA_DEBUG(1, "%s(), Setting speed to: %d\n", __FUNCTION__
, speed
);
1058 IRDA_ASSERT(self
!= NULL
, return;);
1060 iobase
= self
->io
.sir_base
;
1062 /* Come from MIR or FIR speed */
1063 if(self
->io
.speed
>115200)
1065 // Set Dongle Speed mode first
1066 ali_ircc_change_dongle_speed(self
, speed
);
1071 // Clear Line and Auxiluary status registers 2000/11/24 11:47AM
1073 inb(iobase
+UART_LSR
);
1074 inb(iobase
+UART_SCR
);
1076 /* Update accounting for new speed */
1077 self
->io
.speed
= speed
;
1079 spin_lock_irqsave(&self
->lock
, flags
);
1081 divisor
= 115200/speed
;
1083 fcr
= UART_FCR_ENABLE_FIFO
;
1086 * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and
1087 * almost 1,7 ms at 19200 bps. At speeds above that we can just forget
1088 * about this timeout since it will always be fast enough.
1090 if (self
->io
.speed
< 38400)
1091 fcr
|= UART_FCR_TRIGGER_1
;
1093 fcr
|= UART_FCR_TRIGGER_14
;
1095 /* IrDA ports use 8N1 */
1096 lcr
= UART_LCR_WLEN8
;
1098 outb(UART_LCR_DLAB
| lcr
, iobase
+UART_LCR
); /* Set DLAB */
1099 outb(divisor
& 0xff, iobase
+UART_DLL
); /* Set speed */
1100 outb(divisor
>> 8, iobase
+UART_DLM
);
1101 outb(lcr
, iobase
+UART_LCR
); /* Set 8N1 */
1102 outb(fcr
, iobase
+UART_FCR
); /* Enable FIFO's */
1104 /* without this, the conection will be broken after come back from FIR speed,
1105 but with this, the SIR connection is harder to established */
1106 outb((UART_MCR_DTR
| UART_MCR_RTS
| UART_MCR_OUT2
), iobase
+UART_MCR
);
1108 spin_unlock_irqrestore(&self
->lock
, flags
);
1110 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1113 static void ali_ircc_change_dongle_speed(struct ali_ircc_cb
*priv
, int speed
)
1116 struct ali_ircc_cb
*self
= (struct ali_ircc_cb
*) priv
;
1117 int iobase
,dongle_id
;
1120 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1122 iobase
= self
->io
.fir_base
; /* or iobase = self->io.sir_base; */
1123 dongle_id
= self
->io
.dongle_id
;
1125 /* We are already locked, no need to do it again */
1127 IRDA_DEBUG(1, "%s(), Set Speed for %s , Speed = %d\n", __FUNCTION__
, dongle_types
[dongle_id
], speed
);
1129 switch_bank(iobase
, BANK2
);
1130 tmp
= inb(iobase
+FIR_IRDA_CR
);
1132 /* IBM type dongle */
1135 if(speed
== 4000000)
1138 // SD/MODE __| |__ __
1143 tmp
&= ~IRDA_CR_HDLC
; // HDLC=0
1144 tmp
|= IRDA_CR_CRC
; // CRC=1
1146 switch_bank(iobase
, BANK2
);
1147 outb(tmp
, iobase
+FIR_IRDA_CR
);
1149 // T1 -> SD/MODE:0 IRTX:0
1152 outb(tmp
, iobase
+FIR_IRDA_CR
);
1155 // T2 -> SD/MODE:1 IRTX:0
1158 outb(tmp
, iobase
+FIR_IRDA_CR
);
1161 // T3 -> SD/MODE:1 IRTX:1
1163 outb(tmp
, iobase
+FIR_IRDA_CR
);
1166 // T4 -> SD/MODE:0 IRTX:1
1169 outb(tmp
, iobase
+FIR_IRDA_CR
);
1172 // T5 -> SD/MODE:0 IRTX:0
1175 outb(tmp
, iobase
+FIR_IRDA_CR
);
1178 // reset -> Normal TX output Signal
1179 outb(tmp
& ~0x02, iobase
+FIR_IRDA_CR
);
1181 else /* speed <=1152000 */
1189 /* MIR 115200, 57600 */
1192 tmp
|= 0xA0; //HDLC=1, 1.152Mbps=1
1196 tmp
&=~0x80; //HDLC 0.576Mbps
1197 tmp
|= 0x20; //HDLC=1,
1200 tmp
|= IRDA_CR_CRC
; // CRC=1
1202 switch_bank(iobase
, BANK2
);
1203 outb(tmp
, iobase
+FIR_IRDA_CR
);
1205 /* MIR 115200, 57600 */
1207 //switch_bank(iobase, BANK2);
1208 // T1 -> SD/MODE:0 IRTX:0
1211 outb(tmp
, iobase
+FIR_IRDA_CR
);
1214 // T2 -> SD/MODE:1 IRTX:0
1217 outb(tmp
, iobase
+FIR_IRDA_CR
);
1219 // T3 -> SD/MODE:0 IRTX:0
1222 outb(tmp
, iobase
+FIR_IRDA_CR
);
1225 // reset -> Normal TX output Signal
1226 outb(tmp
& ~0x02, iobase
+FIR_IRDA_CR
);
1229 else if (dongle_id
== 1) /* HP HDSL-3600 */
1234 tmp
&= ~IRDA_CR_HDLC
; // HDLC=0
1238 tmp
|= 0xA0; // HDLC=1, 1.152Mbps=1
1242 tmp
&=~0x80; // HDLC 0.576Mbps
1243 tmp
|= 0x20; // HDLC=1,
1247 tmp
|= IRDA_CR_CRC
; // CRC=1
1249 switch_bank(iobase
, BANK2
);
1250 outb(tmp
, iobase
+FIR_IRDA_CR
);
1252 else /* HP HDSL-1100 */
1254 if(speed
<= 115200) /* SIR */
1257 tmp
&= ~IRDA_CR_FIR_SIN
; // HP sin select = 0
1259 switch_bank(iobase
, BANK2
);
1260 outb(tmp
, iobase
+FIR_IRDA_CR
);
1268 tmp
&= ~IRDA_CR_HDLC
; // HDLC=0
1272 tmp
|= 0xA0; // HDLC=1, 1.152Mbps=1
1276 tmp
&=~0x80; // HDLC 0.576Mbps
1277 tmp
|= 0x20; // HDLC=1,
1281 tmp
|= IRDA_CR_CRC
; // CRC=1
1282 tmp
|= IRDA_CR_FIR_SIN
; // HP sin select = 1
1284 switch_bank(iobase
, BANK2
);
1285 outb(tmp
, iobase
+FIR_IRDA_CR
);
1289 switch_bank(iobase
, BANK0
);
1291 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1295 * Function ali_ircc_sir_write (driver)
1297 * Fill Tx FIFO with transmit data
1300 static int ali_ircc_sir_write(int iobase
, int fifo_size
, __u8
*buf
, int len
)
1304 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1306 /* Tx FIFO should be empty! */
1307 if (!(inb(iobase
+UART_LSR
) & UART_LSR_THRE
)) {
1308 IRDA_DEBUG(0, "%s(), failed, fifo not empty!\n", __FUNCTION__
);
1312 /* Fill FIFO with current frame */
1313 while ((fifo_size
-- > 0) && (actual
< len
)) {
1314 /* Transmit next byte */
1315 outb(buf
[actual
], iobase
+UART_TX
);
1320 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1325 * Function ali_ircc_net_open (dev)
1330 static int ali_ircc_net_open(struct net_device
*dev
)
1332 struct ali_ircc_cb
*self
;
1336 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1338 IRDA_ASSERT(dev
!= NULL
, return -1;);
1340 self
= (struct ali_ircc_cb
*) dev
->priv
;
1342 IRDA_ASSERT(self
!= NULL
, return 0;);
1344 iobase
= self
->io
.fir_base
;
1346 /* Request IRQ and install Interrupt Handler */
1347 if (request_irq(self
->io
.irq
, ali_ircc_interrupt
, 0, dev
->name
, dev
))
1349 IRDA_WARNING("%s, unable to allocate irq=%d\n",
1350 ALI_IRCC_DRIVER_NAME
,
1356 * Always allocate the DMA channel after the IRQ, and clean up on
1359 if (request_dma(self
->io
.dma
, dev
->name
)) {
1360 IRDA_WARNING("%s, unable to allocate dma=%d\n",
1361 ALI_IRCC_DRIVER_NAME
,
1363 free_irq(self
->io
.irq
, self
);
1367 /* Turn on interrups */
1368 outb(UART_IER_RDI
, iobase
+UART_IER
);
1370 /* Ready to play! */
1371 netif_start_queue(dev
); //benjamin by irport
1373 /* Give self a hardware name */
1374 sprintf(hwname
, "ALI-FIR @ 0x%03x", self
->io
.fir_base
);
1377 * Open new IrLAP layer instance, now that everything should be
1378 * initialized properly
1380 self
->irlap
= irlap_open(dev
, &self
->qos
, hwname
);
1382 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1388 * Function ali_ircc_net_close (dev)
1393 static int ali_ircc_net_close(struct net_device
*dev
)
1396 struct ali_ircc_cb
*self
;
1399 IRDA_DEBUG(4, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1401 IRDA_ASSERT(dev
!= NULL
, return -1;);
1403 self
= (struct ali_ircc_cb
*) dev
->priv
;
1404 IRDA_ASSERT(self
!= NULL
, return 0;);
1407 netif_stop_queue(dev
);
1409 /* Stop and remove instance of IrLAP */
1411 irlap_close(self
->irlap
);
1414 disable_dma(self
->io
.dma
);
1416 /* Disable interrupts */
1417 SetCOMInterrupts(self
, FALSE
);
1419 free_irq(self
->io
.irq
, dev
);
1420 free_dma(self
->io
.dma
);
1422 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1428 * Function ali_ircc_fir_hard_xmit (skb, dev)
1430 * Transmit the frame
1433 static int ali_ircc_fir_hard_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1435 struct ali_ircc_cb
*self
;
1436 unsigned long flags
;
1441 IRDA_DEBUG(1, "%s(), ---------------- Start -----------------\n", __FUNCTION__
);
1443 self
= (struct ali_ircc_cb
*) dev
->priv
;
1444 iobase
= self
->io
.fir_base
;
1446 netif_stop_queue(dev
);
1448 /* Make sure tests *& speed change are atomic */
1449 spin_lock_irqsave(&self
->lock
, flags
);
1451 /* Note : you should make sure that speed changes are not going
1452 * to corrupt any outgoing frame. Look at nsc-ircc for the gory
1453 * details - Jean II */
1455 /* Check if we need to change the speed */
1456 speed
= irda_get_next_speed(skb
);
1457 if ((speed
!= self
->io
.speed
) && (speed
!= -1)) {
1458 /* Check for empty frame */
1460 ali_ircc_change_speed(self
, speed
);
1461 dev
->trans_start
= jiffies
;
1462 spin_unlock_irqrestore(&self
->lock
, flags
);
1466 self
->new_speed
= speed
;
1469 /* Register and copy this frame to DMA memory */
1470 self
->tx_fifo
.queue
[self
->tx_fifo
.free
].start
= self
->tx_fifo
.tail
;
1471 self
->tx_fifo
.queue
[self
->tx_fifo
.free
].len
= skb
->len
;
1472 self
->tx_fifo
.tail
+= skb
->len
;
1474 self
->stats
.tx_bytes
+= skb
->len
;
1476 memcpy(self
->tx_fifo
.queue
[self
->tx_fifo
.free
].start
, skb
->data
,
1479 self
->tx_fifo
.len
++;
1480 self
->tx_fifo
.free
++;
1482 /* Start transmit only if there is currently no transmit going on */
1483 if (self
->tx_fifo
.len
== 1)
1485 /* Check if we must wait the min turn time or not */
1486 mtt
= irda_get_mtt(skb
);
1490 /* Check how much time we have used already */
1491 do_gettimeofday(&self
->now
);
1493 diff
= self
->now
.tv_usec
- self
->stamp
.tv_usec
;
1494 /* self->stamp is set from ali_ircc_dma_receive_complete() */
1496 IRDA_DEBUG(1, "%s(), ******* diff = %d ******* \n", __FUNCTION__
, diff
);
1501 /* Check if the mtt is larger than the time we have
1502 * already used by all the protocol processing
1509 * Use timer if delay larger than 1000 us, and
1510 * use udelay for smaller values which should
1515 /* Adjust for timer resolution */
1516 mtt
= (mtt
+250) / 500; /* 4 discard, 5 get advanced, Let's round off */
1518 IRDA_DEBUG(1, "%s(), ************** mtt = %d ***********\n", __FUNCTION__
, mtt
);
1521 if (mtt
== 1) /* 500 us */
1523 switch_bank(iobase
, BANK1
);
1524 outb(TIMER_IIR_500
, iobase
+FIR_TIMER_IIR
);
1526 else if (mtt
== 2) /* 1 ms */
1528 switch_bank(iobase
, BANK1
);
1529 outb(TIMER_IIR_1ms
, iobase
+FIR_TIMER_IIR
);
1531 else /* > 2ms -> 4ms */
1533 switch_bank(iobase
, BANK1
);
1534 outb(TIMER_IIR_2ms
, iobase
+FIR_TIMER_IIR
);
1539 outb(inb(iobase
+FIR_CR
) | CR_TIMER_EN
, iobase
+FIR_CR
);
1540 self
->io
.direction
= IO_XMIT
;
1542 /* Enable timer interrupt */
1543 self
->ier
= IER_TIMER
;
1544 SetCOMInterrupts(self
, TRUE
);
1546 /* Timer will take care of the rest */
1551 } // if (if (mtt > diff)
1554 /* Enable EOM interrupt */
1555 self
->ier
= IER_EOM
;
1556 SetCOMInterrupts(self
, TRUE
);
1558 /* Transmit frame */
1559 ali_ircc_dma_xmit(self
);
1560 } // if (self->tx_fifo.len == 1)
1564 /* Not busy transmitting anymore if window is not full */
1565 if (self
->tx_fifo
.free
< MAX_TX_WINDOW
)
1566 netif_wake_queue(self
->netdev
);
1568 /* Restore bank register */
1569 switch_bank(iobase
, BANK0
);
1571 dev
->trans_start
= jiffies
;
1572 spin_unlock_irqrestore(&self
->lock
, flags
);
1575 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1580 static void ali_ircc_dma_xmit(struct ali_ircc_cb
*self
)
1583 unsigned char FIFO_OPTI
, Hi
, Lo
;
1586 IRDA_DEBUG(1, "%s(), ---------------- Start -----------------\n", __FUNCTION__
);
1588 iobase
= self
->io
.fir_base
;
1590 /* FIFO threshold , this method comes from NDIS5 code */
1592 if(self
->tx_fifo
.queue
[self
->tx_fifo
.ptr
].len
< TX_FIFO_Threshold
)
1593 FIFO_OPTI
= self
->tx_fifo
.queue
[self
->tx_fifo
.ptr
].len
-1;
1595 FIFO_OPTI
= TX_FIFO_Threshold
;
1598 switch_bank(iobase
, BANK1
);
1599 outb(inb(iobase
+FIR_CR
) & ~CR_DMA_EN
, iobase
+FIR_CR
);
1601 self
->io
.direction
= IO_XMIT
;
1603 irda_setup_dma(self
->io
.dma
,
1604 ((u8
*)self
->tx_fifo
.queue
[self
->tx_fifo
.ptr
].start
-
1605 self
->tx_buff
.head
) + self
->tx_buff_dma
,
1606 self
->tx_fifo
.queue
[self
->tx_fifo
.ptr
].len
,
1610 switch_bank(iobase
, BANK0
);
1611 outb(LCR_A_FIFO_RESET
, iobase
+FIR_LCR_A
);
1613 /* Set Tx FIFO threshold */
1614 if (self
->fifo_opti_buf
!=FIFO_OPTI
)
1616 switch_bank(iobase
, BANK1
);
1617 outb(FIFO_OPTI
, iobase
+FIR_FIFO_TR
) ;
1618 self
->fifo_opti_buf
=FIFO_OPTI
;
1621 /* Set Tx DMA threshold */
1622 switch_bank(iobase
, BANK1
);
1623 outb(TX_DMA_Threshold
, iobase
+FIR_DMA_TR
);
1625 /* Set max Tx frame size */
1626 Hi
= (self
->tx_fifo
.queue
[self
->tx_fifo
.ptr
].len
>> 8) & 0x0f;
1627 Lo
= self
->tx_fifo
.queue
[self
->tx_fifo
.ptr
].len
& 0xff;
1628 switch_bank(iobase
, BANK2
);
1629 outb(Hi
, iobase
+FIR_TX_DSR_HI
);
1630 outb(Lo
, iobase
+FIR_TX_DSR_LO
);
1632 /* Disable SIP , Disable Brick Wall (we don't support in TX mode), Change to TX mode */
1633 switch_bank(iobase
, BANK0
);
1634 tmp
= inb(iobase
+FIR_LCR_B
);
1635 tmp
&= ~0x20; // Disable SIP
1636 outb(((unsigned char)(tmp
& 0x3f) | LCR_B_TX_MODE
) & ~LCR_B_BW
, iobase
+FIR_LCR_B
);
1637 IRDA_DEBUG(1, "%s(), ******* Change to TX mode: FIR_LCR_B = 0x%x ******* \n", __FUNCTION__
, inb(iobase
+FIR_LCR_B
));
1639 outb(0, iobase
+FIR_LSR
);
1641 /* Enable DMA and Burst Mode */
1642 switch_bank(iobase
, BANK1
);
1643 outb(inb(iobase
+FIR_CR
) | CR_DMA_EN
| CR_DMA_BURST
, iobase
+FIR_CR
);
1645 switch_bank(iobase
, BANK0
);
1647 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1650 static int ali_ircc_dma_xmit_complete(struct ali_ircc_cb
*self
)
1655 IRDA_DEBUG(1, "%s(), ---------------- Start -----------------\n", __FUNCTION__
);
1657 iobase
= self
->io
.fir_base
;
1660 switch_bank(iobase
, BANK1
);
1661 outb(inb(iobase
+FIR_CR
) & ~CR_DMA_EN
, iobase
+FIR_CR
);
1663 /* Check for underrun! */
1664 switch_bank(iobase
, BANK0
);
1665 if((inb(iobase
+FIR_LSR
) & LSR_FRAME_ABORT
) == LSR_FRAME_ABORT
)
1668 IRDA_ERROR("%s(), ********* LSR_FRAME_ABORT *********\n", __FUNCTION__
);
1669 self
->stats
.tx_errors
++;
1670 self
->stats
.tx_fifo_errors
++;
1674 self
->stats
.tx_packets
++;
1677 /* Check if we need to change the speed */
1678 if (self
->new_speed
)
1680 ali_ircc_change_speed(self
, self
->new_speed
);
1681 self
->new_speed
= 0;
1684 /* Finished with this frame, so prepare for next */
1685 self
->tx_fifo
.ptr
++;
1686 self
->tx_fifo
.len
--;
1688 /* Any frames to be sent back-to-back? */
1689 if (self
->tx_fifo
.len
)
1691 ali_ircc_dma_xmit(self
);
1693 /* Not finished yet! */
1697 { /* Reset Tx FIFO info */
1698 self
->tx_fifo
.len
= self
->tx_fifo
.ptr
= self
->tx_fifo
.free
= 0;
1699 self
->tx_fifo
.tail
= self
->tx_buff
.head
;
1702 /* Make sure we have room for more frames */
1703 if (self
->tx_fifo
.free
< MAX_TX_WINDOW
) {
1704 /* Not busy transmitting anymore */
1705 /* Tell the network layer, that we can accept more frames */
1706 netif_wake_queue(self
->netdev
);
1709 switch_bank(iobase
, BANK0
);
1711 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1716 * Function ali_ircc_dma_receive (self)
1718 * Get ready for receiving a frame. The device will initiate a DMA
1719 * if it starts to receive a frame.
1722 static int ali_ircc_dma_receive(struct ali_ircc_cb
*self
)
1726 IRDA_DEBUG(1, "%s(), ---------------- Start -----------------\n", __FUNCTION__
);
1728 iobase
= self
->io
.fir_base
;
1730 /* Reset Tx FIFO info */
1731 self
->tx_fifo
.len
= self
->tx_fifo
.ptr
= self
->tx_fifo
.free
= 0;
1732 self
->tx_fifo
.tail
= self
->tx_buff
.head
;
1735 switch_bank(iobase
, BANK1
);
1736 outb(inb(iobase
+FIR_CR
) & ~CR_DMA_EN
, iobase
+FIR_CR
);
1738 /* Reset Message Count */
1739 switch_bank(iobase
, BANK0
);
1740 outb(0x07, iobase
+FIR_LSR
);
1742 self
->rcvFramesOverflow
= FALSE
;
1744 self
->LineStatus
= inb(iobase
+FIR_LSR
) ;
1746 /* Reset Rx FIFO info */
1747 self
->io
.direction
= IO_RECV
;
1748 self
->rx_buff
.data
= self
->rx_buff
.head
;
1751 // switch_bank(iobase, BANK0);
1752 outb(LCR_A_FIFO_RESET
, iobase
+FIR_LCR_A
);
1754 self
->st_fifo
.len
= self
->st_fifo
.pending_bytes
= 0;
1755 self
->st_fifo
.tail
= self
->st_fifo
.head
= 0;
1757 irda_setup_dma(self
->io
.dma
, self
->rx_buff_dma
, self
->rx_buff
.truesize
,
1760 /* Set Receive Mode,Brick Wall */
1761 //switch_bank(iobase, BANK0);
1762 tmp
= inb(iobase
+FIR_LCR_B
);
1763 outb((unsigned char)(tmp
&0x3f) | LCR_B_RX_MODE
| LCR_B_BW
, iobase
+ FIR_LCR_B
); // 2000/12/1 05:16PM
1764 IRDA_DEBUG(1, "%s(), *** Change To RX mode: FIR_LCR_B = 0x%x *** \n", __FUNCTION__
, inb(iobase
+FIR_LCR_B
));
1766 /* Set Rx Threshold */
1767 switch_bank(iobase
, BANK1
);
1768 outb(RX_FIFO_Threshold
, iobase
+FIR_FIFO_TR
);
1769 outb(RX_DMA_Threshold
, iobase
+FIR_DMA_TR
);
1771 /* Enable DMA and Burst Mode */
1772 // switch_bank(iobase, BANK1);
1773 outb(CR_DMA_EN
| CR_DMA_BURST
, iobase
+FIR_CR
);
1775 switch_bank(iobase
, BANK0
);
1776 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1780 static int ali_ircc_dma_receive_complete(struct ali_ircc_cb
*self
)
1782 struct st_fifo
*st_fifo
;
1783 struct sk_buff
*skb
;
1784 __u8 status
, MessageCount
;
1785 int len
, i
, iobase
, val
;
1787 IRDA_DEBUG(1, "%s(), ---------------- Start -----------------\n", __FUNCTION__
);
1789 st_fifo
= &self
->st_fifo
;
1790 iobase
= self
->io
.fir_base
;
1792 switch_bank(iobase
, BANK0
);
1793 MessageCount
= inb(iobase
+ FIR_LSR
)&0x07;
1795 if (MessageCount
> 0)
1796 IRDA_DEBUG(0, "%s(), Messsage count = %d,\n", __FUNCTION__
, MessageCount
);
1798 for (i
=0; i
<=MessageCount
; i
++)
1801 switch_bank(iobase
, BANK0
);
1802 status
= inb(iobase
+FIR_LSR
);
1804 switch_bank(iobase
, BANK2
);
1805 len
= inb(iobase
+FIR_RX_DSR_HI
) & 0x0f;
1807 len
|= inb(iobase
+FIR_RX_DSR_LO
);
1809 IRDA_DEBUG(1, "%s(), RX Length = 0x%.2x,\n", __FUNCTION__
, len
);
1810 IRDA_DEBUG(1, "%s(), RX Status = 0x%.2x,\n", __FUNCTION__
, status
);
1812 if (st_fifo
->tail
>= MAX_RX_WINDOW
) {
1813 IRDA_DEBUG(0, "%s(), window is full!\n", __FUNCTION__
);
1817 st_fifo
->entries
[st_fifo
->tail
].status
= status
;
1818 st_fifo
->entries
[st_fifo
->tail
].len
= len
;
1819 st_fifo
->pending_bytes
+= len
;
1824 for (i
=0; i
<=MessageCount
; i
++)
1826 /* Get first entry */
1827 status
= st_fifo
->entries
[st_fifo
->head
].status
;
1828 len
= st_fifo
->entries
[st_fifo
->head
].len
;
1829 st_fifo
->pending_bytes
-= len
;
1833 /* Check for errors */
1834 if ((status
& 0xd8) || self
->rcvFramesOverflow
|| (len
==0))
1836 IRDA_DEBUG(0,"%s(), ************* RX Errors ************ \n", __FUNCTION__
);
1839 self
->stats
.rx_errors
++;
1841 self
->rx_buff
.data
+= len
;
1843 if (status
& LSR_FIFO_UR
)
1845 self
->stats
.rx_frame_errors
++;
1846 IRDA_DEBUG(0,"%s(), ************* FIFO Errors ************ \n", __FUNCTION__
);
1848 if (status
& LSR_FRAME_ERROR
)
1850 self
->stats
.rx_frame_errors
++;
1851 IRDA_DEBUG(0,"%s(), ************* FRAME Errors ************ \n", __FUNCTION__
);
1854 if (status
& LSR_CRC_ERROR
)
1856 self
->stats
.rx_crc_errors
++;
1857 IRDA_DEBUG(0,"%s(), ************* CRC Errors ************ \n", __FUNCTION__
);
1860 if(self
->rcvFramesOverflow
)
1862 self
->stats
.rx_frame_errors
++;
1863 IRDA_DEBUG(0,"%s(), ************* Overran DMA buffer ************ \n", __FUNCTION__
);
1867 self
->stats
.rx_frame_errors
++;
1868 IRDA_DEBUG(0,"%s(), ********** Receive Frame Size = 0 ********* \n", __FUNCTION__
);
1874 if (st_fifo
->pending_bytes
< 32)
1876 switch_bank(iobase
, BANK0
);
1877 val
= inb(iobase
+FIR_BSR
);
1878 if ((val
& BSR_FIFO_NOT_EMPTY
)== 0x80)
1880 IRDA_DEBUG(0, "%s(), ************* BSR_FIFO_NOT_EMPTY ************ \n", __FUNCTION__
);
1882 /* Put this entry back in fifo */
1885 st_fifo
->pending_bytes
+= len
;
1886 st_fifo
->entries
[st_fifo
->head
].status
= status
;
1887 st_fifo
->entries
[st_fifo
->head
].len
= len
;
1890 * DMA not finished yet, so try again
1891 * later, set timer value, resolution
1895 switch_bank(iobase
, BANK1
);
1896 outb(TIMER_IIR_500
, iobase
+FIR_TIMER_IIR
); // 2001/1/2 05:07PM
1899 outb(inb(iobase
+FIR_CR
) | CR_TIMER_EN
, iobase
+FIR_CR
);
1901 return FALSE
; /* I'll be back! */
1906 * Remember the time we received this frame, so we can
1907 * reduce the min turn time a bit since we will know
1908 * how much time we have used for protocol processing
1910 do_gettimeofday(&self
->stamp
);
1912 skb
= dev_alloc_skb(len
+1);
1915 IRDA_WARNING("%s(), memory squeeze, "
1916 "dropping frame.\n",
1918 self
->stats
.rx_dropped
++;
1923 /* Make sure IP header gets aligned */
1924 skb_reserve(skb
, 1);
1926 /* Copy frame without CRC, CRC is removed by hardware*/
1928 memcpy(skb
->data
, self
->rx_buff
.data
, len
);
1930 /* Move to next frame */
1931 self
->rx_buff
.data
+= len
;
1932 self
->stats
.rx_bytes
+= len
;
1933 self
->stats
.rx_packets
++;
1935 skb
->dev
= self
->netdev
;
1936 skb
->mac
.raw
= skb
->data
;
1937 skb
->protocol
= htons(ETH_P_IRDA
);
1939 self
->netdev
->last_rx
= jiffies
;
1943 switch_bank(iobase
, BANK0
);
1945 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
1952 * Function ali_ircc_sir_hard_xmit (skb, dev)
1954 * Transmit the frame!
1957 static int ali_ircc_sir_hard_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1959 struct ali_ircc_cb
*self
;
1960 unsigned long flags
;
1964 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
1966 IRDA_ASSERT(dev
!= NULL
, return 0;);
1968 self
= (struct ali_ircc_cb
*) dev
->priv
;
1969 IRDA_ASSERT(self
!= NULL
, return 0;);
1971 iobase
= self
->io
.sir_base
;
1973 netif_stop_queue(dev
);
1975 /* Make sure tests *& speed change are atomic */
1976 spin_lock_irqsave(&self
->lock
, flags
);
1978 /* Note : you should make sure that speed changes are not going
1979 * to corrupt any outgoing frame. Look at nsc-ircc for the gory
1980 * details - Jean II */
1982 /* Check if we need to change the speed */
1983 speed
= irda_get_next_speed(skb
);
1984 if ((speed
!= self
->io
.speed
) && (speed
!= -1)) {
1985 /* Check for empty frame */
1987 ali_ircc_change_speed(self
, speed
);
1988 dev
->trans_start
= jiffies
;
1989 spin_unlock_irqrestore(&self
->lock
, flags
);
1993 self
->new_speed
= speed
;
1996 /* Init tx buffer */
1997 self
->tx_buff
.data
= self
->tx_buff
.head
;
1999 /* Copy skb to tx_buff while wrapping, stuffing and making CRC */
2000 self
->tx_buff
.len
= async_wrap_skb(skb
, self
->tx_buff
.data
,
2001 self
->tx_buff
.truesize
);
2003 self
->stats
.tx_bytes
+= self
->tx_buff
.len
;
2005 /* Turn on transmit finished interrupt. Will fire immediately! */
2006 outb(UART_IER_THRI
, iobase
+UART_IER
);
2008 dev
->trans_start
= jiffies
;
2009 spin_unlock_irqrestore(&self
->lock
, flags
);
2013 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2020 * Function ali_ircc_net_ioctl (dev, rq, cmd)
2022 * Process IOCTL commands for this device
2025 static int ali_ircc_net_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
2027 struct if_irda_req
*irq
= (struct if_irda_req
*) rq
;
2028 struct ali_ircc_cb
*self
;
2029 unsigned long flags
;
2032 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
2034 IRDA_ASSERT(dev
!= NULL
, return -1;);
2038 IRDA_ASSERT(self
!= NULL
, return -1;);
2040 IRDA_DEBUG(2, "%s(), %s, (cmd=0x%X)\n", __FUNCTION__
, dev
->name
, cmd
);
2043 case SIOCSBANDWIDTH
: /* Set bandwidth */
2044 IRDA_DEBUG(1, "%s(), SIOCSBANDWIDTH\n", __FUNCTION__
);
2046 * This function will also be used by IrLAP to change the
2047 * speed, so we still must allow for speed change within
2048 * interrupt context.
2050 if (!in_interrupt() && !capable(CAP_NET_ADMIN
))
2053 spin_lock_irqsave(&self
->lock
, flags
);
2054 ali_ircc_change_speed(self
, irq
->ifr_baudrate
);
2055 spin_unlock_irqrestore(&self
->lock
, flags
);
2057 case SIOCSMEDIABUSY
: /* Set media busy */
2058 IRDA_DEBUG(1, "%s(), SIOCSMEDIABUSY\n", __FUNCTION__
);
2059 if (!capable(CAP_NET_ADMIN
))
2061 irda_device_set_media_busy(self
->netdev
, TRUE
);
2063 case SIOCGRECEIVING
: /* Check if we are receiving right now */
2064 IRDA_DEBUG(2, "%s(), SIOCGRECEIVING\n", __FUNCTION__
);
2065 /* This is protected */
2066 irq
->ifr_receiving
= ali_ircc_is_receiving(self
);
2072 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2078 * Function ali_ircc_is_receiving (self)
2080 * Return TRUE is we are currently receiving a frame
2083 static int ali_ircc_is_receiving(struct ali_ircc_cb
*self
)
2085 unsigned long flags
;
2089 IRDA_DEBUG(2, "%s(), ---------------- Start -----------------\n", __FUNCTION__
);
2091 IRDA_ASSERT(self
!= NULL
, return FALSE
;);
2093 spin_lock_irqsave(&self
->lock
, flags
);
2095 if (self
->io
.speed
> 115200)
2097 iobase
= self
->io
.fir_base
;
2099 switch_bank(iobase
, BANK1
);
2100 if((inb(iobase
+FIR_FIFO_FR
) & 0x3f) != 0)
2102 /* We are receiving something */
2103 IRDA_DEBUG(1, "%s(), We are receiving something\n", __FUNCTION__
);
2106 switch_bank(iobase
, BANK0
);
2110 status
= (self
->rx_buff
.state
!= OUTSIDE_FRAME
);
2113 spin_unlock_irqrestore(&self
->lock
, flags
);
2115 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2120 static struct net_device_stats
*ali_ircc_net_get_stats(struct net_device
*dev
)
2122 struct ali_ircc_cb
*self
= (struct ali_ircc_cb
*) dev
->priv
;
2124 IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
2126 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2128 return &self
->stats
;
2131 static int ali_ircc_suspend(struct platform_device
*dev
, pm_message_t state
)
2133 struct ali_ircc_cb
*self
= platform_get_drvdata(dev
);
2135 IRDA_MESSAGE("%s, Suspending\n", ALI_IRCC_DRIVER_NAME
);
2137 if (self
->io
.suspended
)
2140 ali_ircc_net_close(self
->netdev
);
2142 self
->io
.suspended
= 1;
2147 static int ali_ircc_resume(struct platform_device
*dev
)
2149 struct ali_ircc_cb
*self
= platform_get_drvdata(dev
);
2151 if (!self
->io
.suspended
)
2154 ali_ircc_net_open(self
->netdev
);
2156 IRDA_MESSAGE("%s, Waking up\n", ALI_IRCC_DRIVER_NAME
);
2158 self
->io
.suspended
= 0;
2163 /* ALi Chip Function */
2165 static void SetCOMInterrupts(struct ali_ircc_cb
*self
, unsigned char enable
)
2168 unsigned char newMask
;
2170 int iobase
= self
->io
.fir_base
; /* or sir_base */
2172 IRDA_DEBUG(2, "%s(), -------- Start -------- ( Enable = %d )\n", __FUNCTION__
, enable
);
2174 /* Enable the interrupt which we wish to */
2176 if (self
->io
.direction
== IO_XMIT
)
2178 if (self
->io
.speed
> 115200) /* FIR, MIR */
2180 newMask
= self
->ier
;
2184 newMask
= UART_IER_THRI
| UART_IER_RDI
;
2188 if (self
->io
.speed
> 115200) /* FIR, MIR */
2190 newMask
= self
->ier
;
2194 newMask
= UART_IER_RDI
;
2198 else /* Disable all the interrupts */
2204 //SIR and FIR has different registers
2205 if (self
->io
.speed
> 115200)
2207 switch_bank(iobase
, BANK0
);
2208 outb(newMask
, iobase
+FIR_IER
);
2211 outb(newMask
, iobase
+UART_IER
);
2213 IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2216 static void SIR2FIR(int iobase
)
2218 //unsigned char tmp;
2220 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
2222 /* Already protected (change_speed() or setup()), no need to lock.
2225 outb(0x28, iobase
+UART_MCR
);
2226 outb(0x68, iobase
+UART_MCR
);
2227 outb(0x88, iobase
+UART_MCR
);
2229 outb(0x60, iobase
+FIR_MCR
); /* Master Reset */
2230 outb(0x20, iobase
+FIR_MCR
); /* Master Interrupt Enable */
2232 //tmp = inb(iobase+FIR_LCR_B); /* SIP enable */
2234 //outb(tmp, iobase+FIR_LCR_B);
2236 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2239 static void FIR2SIR(int iobase
)
2243 IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__
);
2245 /* Already protected (change_speed() or setup()), no need to lock.
2248 outb(0x20, iobase
+FIR_MCR
); /* IRQ to low */
2249 outb(0x00, iobase
+UART_IER
);
2251 outb(0xA0, iobase
+FIR_MCR
); /* Don't set master reset */
2252 outb(0x00, iobase
+UART_FCR
);
2253 outb(0x07, iobase
+UART_FCR
);
2255 val
= inb(iobase
+UART_RX
);
2256 val
= inb(iobase
+UART_LSR
);
2257 val
= inb(iobase
+UART_MSR
);
2259 IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__
);
2262 MODULE_AUTHOR("Benjamin Kong <benjamin_kong@ali.com.tw>");
2263 MODULE_DESCRIPTION("ALi FIR Controller Driver");
2264 MODULE_LICENSE("GPL");
2267 module_param_array(io
, int, NULL
, 0);
2268 MODULE_PARM_DESC(io
, "Base I/O addresses");
2269 module_param_array(irq
, int, NULL
, 0);
2270 MODULE_PARM_DESC(irq
, "IRQ lines");
2271 module_param_array(dma
, int, NULL
, 0);
2272 MODULE_PARM_DESC(dma
, "DMA channels");
2274 module_init(ali_ircc_init
);
2275 module_exit(ali_ircc_cleanup
);