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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [char/] [lp_intern.c] - Blame information for rev 1777

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/*
 * split into mid and low-level for better support of different hardware
 * by Joerg Dorchain (dorchain@mpi-sb.mpg.de)
 *
 * Amiga printer device by Michael Rausch (linux@uni-koblenz.de);
 * Atari support added by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de);
 * based upon work from
 *
 * Copyright (C) 1992 by Jim Weigand and Linus Torvalds
 * Copyright (C) 1992,1993 by Michael K. Johnson
 * - Thanks much to Gunter Windau for pointing out to me where the error
 *   checking ought to be.
 * Copyright (C) 1993 by Nigel Gamble (added interrupt code)
 */
 
#include <linux/config.h>
#include <linux/lp_intern.h>
#include <linux/kernel.h>
#ifdef CONFIG_AMIGA
#include <asm/amigahw.h>
#endif
#ifdef CONFIG_ATARI
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <asm/atarihw.h>
#endif
 
 
static void lp_int_out(int, int);
static int lp_int_busy(int);
static int lp_int_pout(int);
static int lp_int_online(int);
static int lp_int_interrupt(int);
 
int lp_internal_init(struct lp_struct *, int, int, int);
 
 
static void
lp_int_out (int c, int dev)
{
  switch (boot_info.machtype)
    {
#ifdef CONFIG_AMIGA
    case MACH_AMIGA:
       {
        int wait = 0;
        while (wait != lp_table[dev].wait) wait++;
        ciaa.prb = c;
       }
      break;
#endif
#ifdef CONFIG_ATARI
    case MACH_ATARI:
       {
         int wait = 0;
         sound_ym.rd_data_reg_sel = 15;
         sound_ym.wd_data = c;
         sound_ym.rd_data_reg_sel = 14;
         while (wait != lp_table[dev].wait) wait++;
         sound_ym.wd_data = sound_ym.rd_data_reg_sel & ~(1 << 5);
         while (wait) wait--;
         sound_ym.wd_data = sound_ym.rd_data_reg_sel | (1 << 5);
         break;
       }
#endif
    }
}
 
static int
lp_int_busy (int dev)
{
  switch (boot_info.machtype)
    {
#ifdef CONFIG_AMIGA
    case MACH_AMIGA:
      return ciab.pra & 1;
#endif
#ifdef CONFIG_ATARI
    case MACH_ATARI:
      return mfp.par_dt_reg & 1;
#endif
    default:
      return 0;
    }
}
 
static int
lp_int_pout (int dev)
{
  switch (boot_info.machtype)
    {
#ifdef CONFIG_AMIGA
    case MACH_AMIGA:
      return ciab.pra & 2;
#endif
#ifdef CONFIG_ATARI
    case MACH_ATARI:
#endif
    default:
      return 0;
    }
}
 
static int
lp_int_online (int dev)
{
  switch (boot_info.machtype)
    {
#ifdef CONFIG_AMIGA
    case MACH_AMIGA:
      return ciab.pra & 4;
#endif
#ifdef CONFIG_ATARI
    case MACH_ATARI:
      return !(mfp.par_dt_reg & 1);
#endif
    default:
      return 0;
    }
}
 
static int lp_int_interrupt(int dev)
{
  return 1;
}
 
int lp_internal_init(struct lp_struct *lp_table, int entry,
                     int max_lp, int irq)
{
  if (max_lp-entry < 1)
    return 0;
#ifdef CONFIG_AMIGA
  if (MACH_IS_AMIGA)
    {
      ciaa.ddrb = 0xff;
      ciab.ddra &= 0xf8;
    }
#endif
#ifdef CONFIG_ATARI
  if (MACH_IS_ATARI)
    {
      unsigned long flags;
 
      save_flags(flags);
      cli();
      sound_ym.rd_data_reg_sel = 7;
      sound_ym.wd_data = (sound_ym.rd_data_reg_sel & 0x3f) | 0xc0;
      restore_flags(flags);
    }
#endif
  lp_table[entry].name = "Builtin LP";
  lp_table[entry].lp_out = lp_int_out;
  lp_table[entry].lp_is_busy = lp_int_busy;
  lp_table[entry].lp_has_pout = lp_int_pout;
  lp_table[entry].lp_is_online = lp_int_online;
  lp_table[entry].lp_my_interrupt = lp_int_interrupt;
  lp_table[entry].flags = LP_EXIST;
  lp_table[entry].chars = LP_INIT_CHAR;
  lp_table[entry].time = LP_INIT_TIME;
  lp_table[entry].wait = LP_INIT_WAIT;
  lp_table[entry].lp_wait_q = NULL;
 
  printk("lp%d: internal port\n", entry);
 
  return 1;
}
 

Line No.	Rev	Author	Line
1	1626	jcastillo
2			`/*`
3			`* split into mid and low-level for better support of different hardware`
4			`* by Joerg Dorchain (dorchain@mpi-sb.mpg.de)`
5			`*`
6			`* Amiga printer device by Michael Rausch (linux@uni-koblenz.de);`
7			`* Atari support added by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de);`
8			`* based upon work from`
9			`*`
10			`* Copyright (C) 1992 by Jim Weigand and Linus Torvalds`
11			`* Copyright (C) 1992,1993 by Michael K. Johnson`
12			`* - Thanks much to Gunter Windau for pointing out to me where the error`
13			`* checking ought to be.`
14			`* Copyright (C) 1993 by Nigel Gamble (added interrupt code)`
15			`*/`
16
17			`#include <linux/config.h>`
18			`#include <linux/lp_intern.h>`
19			`#include <linux/kernel.h>`
20			`#ifdef CONFIG_AMIGA`
21			`#include <asm/amigahw.h>`
22			`#endif`
23			`#ifdef CONFIG_ATARI`
24			`#include <linux/delay.h>`
25			`#include <linux/sched.h>`
26			`#include <linux/interrupt.h>`
27			`#include <asm/atarihw.h>`
28			`#endif`
29
30
31			`static void lp_int_out(int, int);`
32			`static int lp_int_busy(int);`
33			`static int lp_int_pout(int);`
34			`static int lp_int_online(int);`
35			`static int lp_int_interrupt(int);`
36
37			`int lp_internal_init(struct lp_struct *, int, int, int);`
38
39
40			`static void`
41			`lp_int_out (int c, int dev)`
42			`{`
43			`switch (boot_info.machtype)`
44			`{`
45			`#ifdef CONFIG_AMIGA`
46			`case MACH_AMIGA:`
47			`{`
48			`int wait = 0;`
49			`while (wait != lp_table[dev].wait) wait++;`
50			`ciaa.prb = c;`
51			`}`
52			`break;`
53			`#endif`
54			`#ifdef CONFIG_ATARI`
55			`case MACH_ATARI:`
56			`{`
57			`int wait = 0;`
58			`sound_ym.rd_data_reg_sel = 15;`
59			`sound_ym.wd_data = c;`
60			`sound_ym.rd_data_reg_sel = 14;`
61			`while (wait != lp_table[dev].wait) wait++;`
62			`sound_ym.wd_data = sound_ym.rd_data_reg_sel & ~(1 << 5);`
63			`while (wait) wait--;`
64			`sound_ym.wd_data = sound_ym.rd_data_reg_sel \| (1 << 5);`
65			`break;`
66			`}`
67			`#endif`
68			`}`
69			`}`
70
71			`static int`
72			`lp_int_busy (int dev)`
73			`{`
74			`switch (boot_info.machtype)`
75			`{`
76			`#ifdef CONFIG_AMIGA`
77			`case MACH_AMIGA:`
78			`return ciab.pra & 1;`
79			`#endif`
80			`#ifdef CONFIG_ATARI`
81			`case MACH_ATARI:`
82			`return mfp.par_dt_reg & 1;`
83			`#endif`
84			`default:`
85			`return 0;`
86			`}`
87			`}`
88
89			`static int`
90			`lp_int_pout (int dev)`
91			`{`
92			`switch (boot_info.machtype)`
93			`{`
94			`#ifdef CONFIG_AMIGA`
95			`case MACH_AMIGA:`
96			`return ciab.pra & 2;`
97			`#endif`
98			`#ifdef CONFIG_ATARI`
99			`case MACH_ATARI:`
100			`#endif`
101			`default:`
102			`return 0;`
103			`}`
104			`}`
105
106			`static int`
107			`lp_int_online (int dev)`
108			`{`
109			`switch (boot_info.machtype)`
110			`{`
111			`#ifdef CONFIG_AMIGA`
112			`case MACH_AMIGA:`
113			`return ciab.pra & 4;`
114			`#endif`
115			`#ifdef CONFIG_ATARI`
116			`case MACH_ATARI:`
117			`return !(mfp.par_dt_reg & 1);`
118			`#endif`
119			`default:`
120			`return 0;`
121			`}`
122			`}`
123
124			`static int lp_int_interrupt(int dev)`
125			`{`
126			`return 1;`
127			`}`
128
129			`int lp_internal_init(struct lp_struct *lp_table, int entry,`
130			`int max_lp, int irq)`
131			`{`
132			`if (max_lp-entry < 1)`
133			`return 0;`
134			`#ifdef CONFIG_AMIGA`
135			`if (MACH_IS_AMIGA)`
136			`{`
137			`ciaa.ddrb = 0xff;`
138			`ciab.ddra &= 0xf8;`
139			`}`
140			`#endif`
141			`#ifdef CONFIG_ATARI`
142			`if (MACH_IS_ATARI)`
143			`{`
144			`unsigned long flags;`
145
146			`save_flags(flags);`
147			`cli();`
148			`sound_ym.rd_data_reg_sel = 7;`
149			`sound_ym.wd_data = (sound_ym.rd_data_reg_sel & 0x3f) \| 0xc0;`
150			`restore_flags(flags);`
151			`}`
152			`#endif`
153			`lp_table[entry].name = "Builtin LP";`
154			`lp_table[entry].lp_out = lp_int_out;`
155			`lp_table[entry].lp_is_busy = lp_int_busy;`
156			`lp_table[entry].lp_has_pout = lp_int_pout;`
157			`lp_table[entry].lp_is_online = lp_int_online;`
158			`lp_table[entry].lp_my_interrupt = lp_int_interrupt;`
159			`lp_table[entry].flags = LP_EXIST;`
160			`lp_table[entry].chars = LP_INIT_CHAR;`
161			`lp_table[entry].time = LP_INIT_TIME;`
162			`lp_table[entry].wait = LP_INIT_WAIT;`
163			`lp_table[entry].lp_wait_q = NULL;`
164
165			`printk("lp%d: internal port\n", entry);`
166
167			`return 1;`
168			`}`
169

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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [char/] [lp_intern.c] - Blame information for rev 1777