1 /* Parallel-port initialisation code.
3 * Authors: David Campbell <campbell@torque.net>
4 * Tim Waugh <tim@cyberelk.demon.co.uk>
5 * Jose Renau <renau@acm.org>
7 * based on work by Grant Guenther <grant@torque.net>
8 * and Philip Blundell <Philip.Blundell@pobox.com>
11 #include <linux/config.h>
12 #include <linux/module.h>
13 #include <linux/threads.h>
14 #include <linux/string.h>
15 #include <linux/parport.h>
16 #include <linux/errno.h>
17 #include <linux/kernel.h>
18 #include <linux/slab.h>
19 #include <linux/init.h>
22 static int io
[PARPORT_MAX
+1] __initdata
= { [0 ... PARPORT_MAX
] = 0 };
23 #ifdef CONFIG_PARPORT_PC
24 static int io_hi
[PARPORT_MAX
+1] __initdata
=
25 { [0 ... PARPORT_MAX
] = PARPORT_IOHI_AUTO
};
27 static int irq
[PARPORT_MAX
] __initdata
= { [0 ... PARPORT_MAX
-1] = PARPORT_IRQ_PROBEONLY
};
28 static int dma
[PARPORT_MAX
] __initdata
= { [0 ... PARPORT_MAX
-1] = PARPORT_DMA_NONE
};
30 extern int parport_pc_init(int *io
, int *io_hi
, int *irq
, int *dma
);
31 extern int parport_sunbpp_init(void);
32 extern int parport_amiga_init(void);
33 extern int parport_mfc3_init(void);
34 extern int parport_atari_init(void);
36 static int parport_setup_ptr __initdata
= 0;
39 * Acceptable parameters:
43 * parport=0xBASE[,IRQ[,DMA]]
45 * IRQ/DMA may be numeric or 'auto' or 'none'
47 static int __init
parport_setup (char *str
)
53 if (!str
|| !*str
|| (*str
== '0' && !*(str
+1))) {
54 /* Disable parport if "parport=0" in cmdline */
55 io
[0] = PARPORT_DISABLE
;
59 if (!strncmp (str
, "auto", 4)) {
60 irq
[0] = PARPORT_IRQ_AUTO
;
61 dma
[0] = PARPORT_DMA_AUTO
;
65 val
= simple_strtoul (str
, &endptr
, 0);
67 printk (KERN_WARNING
"parport=%s not understood\n", str
);
71 if (parport_setup_ptr
== PARPORT_MAX
) {
72 printk(KERN_ERR
"parport=%s ignored, too many ports\n", str
);
76 io
[parport_setup_ptr
] = val
;
77 irq
[parport_setup_ptr
] = PARPORT_IRQ_NONE
;
78 dma
[parport_setup_ptr
] = PARPORT_DMA_NONE
;
80 sep
= strchr (str
, ',');
82 if (!strncmp (sep
, "auto", 4))
83 irq
[parport_setup_ptr
] = PARPORT_IRQ_AUTO
;
84 else if (strncmp (sep
, "none", 4)) {
85 val
= simple_strtoul (sep
, &endptr
, 0);
88 "parport=%s: irq not understood\n",
92 irq
[parport_setup_ptr
] = val
;
96 sep
= strchr (sep
, ',');
98 if (!strncmp (sep
, "auto", 4))
99 dma
[parport_setup_ptr
] = PARPORT_DMA_AUTO
;
100 else if (!strncmp (sep
, "nofifo", 6))
101 dma
[parport_setup_ptr
] = PARPORT_DMA_NOFIFO
;
102 else if (strncmp (sep
, "none", 4)) {
103 val
= simple_strtoul (sep
, &endptr
, 0);
106 "parport=%s: dma not understood\n",
110 dma
[parport_setup_ptr
] = val
;
118 __setup ("parport=", parport_setup
);
123 int init_module(void)
126 parport_default_proc_register ();
131 void cleanup_module(void)
134 parport_default_proc_unregister ();
140 int __init
parport_init (void)
142 if (io
[0] == PARPORT_DISABLE
)
146 parport_default_proc_register ();
149 #ifdef CONFIG_PARPORT_PC
150 parport_pc_init(io
, io_hi
, irq
, dma
);
152 #ifdef CONFIG_PARPORT_AMIGA
153 parport_amiga_init();
155 #ifdef CONFIG_PARPORT_MFC3
158 #ifdef CONFIG_PARPORT_ATARI
159 parport_atari_init();
161 #ifdef CONFIG_PARPORT_ARC
164 #ifdef CONFIG_PARPORT_SUNBPP
165 parport_sunbpp_init();
170 __initcall(parport_init
);
174 /* Exported symbols for modules. */
176 EXPORT_SYMBOL(parport_claim
);
177 EXPORT_SYMBOL(parport_claim_or_block
);
178 EXPORT_SYMBOL(parport_release
);
179 EXPORT_SYMBOL(parport_register_port
);
180 EXPORT_SYMBOL(parport_announce_port
);
181 EXPORT_SYMBOL(parport_unregister_port
);
182 EXPORT_SYMBOL(parport_register_driver
);
183 EXPORT_SYMBOL(parport_unregister_driver
);
184 EXPORT_SYMBOL(parport_register_device
);
185 EXPORT_SYMBOL(parport_unregister_device
);
186 EXPORT_SYMBOL(parport_enumerate
);
187 EXPORT_SYMBOL(parport_get_port
);
188 EXPORT_SYMBOL(parport_put_port
);
189 EXPORT_SYMBOL(parport_find_number
);
190 EXPORT_SYMBOL(parport_find_base
);
191 EXPORT_SYMBOL(parport_negotiate
);
192 EXPORT_SYMBOL(parport_write
);
193 EXPORT_SYMBOL(parport_read
);
194 EXPORT_SYMBOL(parport_ieee1284_wakeup
);
195 EXPORT_SYMBOL(parport_wait_peripheral
);
196 EXPORT_SYMBOL(parport_poll_peripheral
);
197 EXPORT_SYMBOL(parport_wait_event
);
198 EXPORT_SYMBOL(parport_set_timeout
);
199 EXPORT_SYMBOL(parport_ieee1284_interrupt
);
200 EXPORT_SYMBOL(parport_ieee1284_ecp_write_data
);
201 EXPORT_SYMBOL(parport_ieee1284_ecp_read_data
);
202 EXPORT_SYMBOL(parport_ieee1284_ecp_write_addr
);
203 EXPORT_SYMBOL(parport_ieee1284_write_compat
);
204 EXPORT_SYMBOL(parport_ieee1284_read_nibble
);
205 EXPORT_SYMBOL(parport_ieee1284_read_byte
);
206 EXPORT_SYMBOL(parport_ieee1284_epp_write_data
);
207 EXPORT_SYMBOL(parport_ieee1284_epp_read_data
);
208 EXPORT_SYMBOL(parport_ieee1284_epp_write_addr
);
209 EXPORT_SYMBOL(parport_ieee1284_epp_read_addr
);
210 EXPORT_SYMBOL(parport_proc_register
);
211 EXPORT_SYMBOL(parport_proc_unregister
);
212 EXPORT_SYMBOL(parport_device_proc_register
);
213 EXPORT_SYMBOL(parport_device_proc_unregister
);
214 EXPORT_SYMBOL(parport_default_proc_register
);
215 EXPORT_SYMBOL(parport_default_proc_unregister
);
216 EXPORT_SYMBOL(parport_parse_irqs
);
217 EXPORT_SYMBOL(parport_parse_dmas
);
218 #ifdef CONFIG_PARPORT_1284
219 EXPORT_SYMBOL(parport_open
);
220 EXPORT_SYMBOL(parport_close
);
221 EXPORT_SYMBOL(parport_device_id
);
222 EXPORT_SYMBOL(parport_device_num
);
223 EXPORT_SYMBOL(parport_device_coords
);
224 EXPORT_SYMBOL(parport_daisy_deselect_all
);
225 EXPORT_SYMBOL(parport_daisy_select
);
226 EXPORT_SYMBOL(parport_daisy_init
);
227 EXPORT_SYMBOL(parport_find_device
);
228 EXPORT_SYMBOL(parport_find_class
);