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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [pcmcia/] [sa1100_graphicsclient.c] - Blame information for rev 1774

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/*
 * drivers/pcmcia/sa1100_graphicsclient.c
 *
 * PCMCIA implementation routines for Graphics Client Plus
 *
 * 9/12/01   Woojung
 *    Turn power OFF at startup
 * 1/31/2001 Woojung Huh
 *    Fix for GC Plus PCMCIA Reset Problem
 * 2/27/2001 Woojung Huh [whuh@applieddata.net]
 *    Fix
 *
 */
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/delay.h>
 
#include <asm/hardware.h>
#include <asm/irq.h>
#include "sa1100_generic.h"
 
#error This is broken!
 
#define S0_CD_IRQ               60                              // Socket 0 Card Detect IRQ
#define S0_STS_IRQ              55                              // Socket 0 PCMCIA IRQ
 
static volatile unsigned long *PCMCIA_Status =
                ((volatile unsigned long *) ADS_p2v(_ADS_CS_STATUS));
 
static volatile unsigned long *PCMCIA_Power =
                ((volatile unsigned long *) ADS_p2v(_ADS_CS_PR));
 
static int gcplus_pcmcia_init(struct pcmcia_init *init)
{
  int irq, res;
 
  // Reset PCMCIA
  // Reset Timing for CPLD(U2) version 8001E or later
  *PCMCIA_Power &= ~ ADS_CS_PR_A_RESET;
  udelay(12);                   // 12 uSec
 
  *PCMCIA_Power |= ADS_CS_PR_A_RESET;
  mdelay(30);                   // 30 mSec
 
  // Turn off 5V
  *PCMCIA_Power &= ~0x03;
 
  /* Register interrupts */
  irq = S0_CD_IRQ;
  res = request_irq(irq, init->handler, SA_INTERRUPT, "PCMCIA 0 CD", NULL);
  if (res < 0) {
          printk(KERN_ERR "%s: Request for IRQ %lu failed\n", __FUNCTION__, irq);
          return        -1;
  }
 
  return 1;                     // 1 PCMCIA Slot
}
 
static int gcplus_pcmcia_shutdown(void)
{
  /* disable IRQs */
  free_irq( S0_CD_IRQ, NULL);
 
  /* Shutdown PCMCIA power */
  mdelay(2);                                            // 2msec
  *PCMCIA_Power &= ~0x03;
 
  return 0;
}
 
static int gcplus_pcmcia_socket_state(struct pcmcia_state_array
                                       *state_array){
  unsigned long levels;
 
  if(state_array->size<1) return -1;
 
  memset(state_array->state, 0,
         (state_array->size)*sizeof(struct pcmcia_state));
 
  levels=*PCMCIA_Status;
 
  state_array->state[0].detect=(levels & ADS_CS_ST_A_CD)?1:0;
  state_array->state[0].ready=(levels & ADS_CS_ST_A_READY)?1:0;
  state_array->state[0].bvd1= 0;
  state_array->state[0].bvd2= 0;
  state_array->state[0].wrprot=0;
  state_array->state[0].vs_3v=0;
  state_array->state[0].vs_Xv=0;
 
  return 1;
}
 
static int gcplus_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
{
        if (info->sock > 1)
                return -1;
 
        if (info->sock == 0)
                info->irq = S0_STS_IRQ;
 
        return 0;
}
 
static int gcplus_pcmcia_configure_socket(const struct pcmcia_configure
                                           *configure)
{
  unsigned long flags;
 
  if(configure->sock>1) return -1;
 
  save_flags_cli(flags);
 
  switch (configure->vcc) {
  case 0:
          *PCMCIA_Power &= ~(ADS_CS_PR_A_3V_POWER | ADS_CS_PR_A_5V_POWER);
    break;
 
  case 50:
          *PCMCIA_Power &= ~(ADS_CS_PR_A_3V_POWER | ADS_CS_PR_A_5V_POWER);
          *PCMCIA_Power |= ADS_CS_PR_A_5V_POWER;
        break;
 
  case 33:
          *PCMCIA_Power &= ~(ADS_CS_PR_A_3V_POWER | ADS_CS_PR_A_5V_POWER);
          *PCMCIA_Power |= ADS_CS_PR_A_3V_POWER;
    break;
 
  default:
    printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
           configure->vcc);
    restore_flags(flags);
    return -1;
  }
 
  /* Silently ignore Vpp, output enable, speaker enable. */
 
  // Reset PCMCIA
  *PCMCIA_Power &= ~ ADS_CS_PR_A_RESET;
  udelay(12);
 
  *PCMCIA_Power |= ADS_CS_PR_A_RESET;
  mdelay(30);
 
  restore_flags(flags);
 
  return 0;
}
 
static int gcplus_pcmcia_socket_init(int sock)
{
  return 0;
}
 
static int gcplus_pcmcia_socket_suspend(int sock)
{
  return 0;
}
 
struct pcmcia_low_level gcplus_pcmcia_ops = {
  init:                 gcplus_pcmcia_init,
  shutdown:             gcplus_pcmcia_shutdown,
  socket_state:         gcplus_pcmcia_socket_state,
  get_irq_info:         gcplus_pcmcia_get_irq_info,
  configure_socket:     gcplus_pcmcia_configure_socket,
 
  socket_init:          gcplus_pcmcia_socket_init,
  socket_suspend:       gcplus_pcmcia_socket_suspend,
};
 

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* drivers/pcmcia/sa1100_graphicsclient.c`
3			`*`
4			`* PCMCIA implementation routines for Graphics Client Plus`
5			`*`
6			`* 9/12/01 Woojung`
7			`* Turn power OFF at startup`
8			`* 1/31/2001 Woojung Huh`
9			`* Fix for GC Plus PCMCIA Reset Problem`
10			`* 2/27/2001 Woojung Huh [whuh@applieddata.net]`
11			`* Fix`
12			`*`
13			`*/`
14			`#include <linux/kernel.h>`
15			`#include <linux/sched.h>`
16			`#include <linux/delay.h>`
17
18			`#include <asm/hardware.h>`
19			`#include <asm/irq.h>`
20			`#include "sa1100_generic.h"`
21
22			`#error This is broken!`
23
24			`#define S0_CD_IRQ 60 // Socket 0 Card Detect IRQ`
25			`#define S0_STS_IRQ 55 // Socket 0 PCMCIA IRQ`
26
27			`static volatile unsigned long *PCMCIA_Status =`
28			`((volatile unsigned long *) ADS_p2v(_ADS_CS_STATUS));`
29
30			`static volatile unsigned long *PCMCIA_Power =`
31			`((volatile unsigned long *) ADS_p2v(_ADS_CS_PR));`
32
33			`static int gcplus_pcmcia_init(struct pcmcia_init *init)`
34			`{`
35			`int irq, res;`
36
37			`// Reset PCMCIA`
38			`// Reset Timing for CPLD(U2) version 8001E or later`
39			`*PCMCIA_Power &= ~ ADS_CS_PR_A_RESET;`
40			`udelay(12); // 12 uSec`
41
42			`*PCMCIA_Power \|= ADS_CS_PR_A_RESET;`
43			`mdelay(30); // 30 mSec`
44
45			`// Turn off 5V`
46			`*PCMCIA_Power &= ~0x03;`
47
48			`/* Register interrupts */`
49			`irq = S0_CD_IRQ;`
50			`res = request_irq(irq, init->handler, SA_INTERRUPT, "PCMCIA 0 CD", NULL);`
51			`if (res < 0) {`
52			`printk(KERN_ERR "%s: Request for IRQ %lu failed\n", __FUNCTION__, irq);`
53			`return -1;`
54			`}`
55
56			`return 1; // 1 PCMCIA Slot`
57			`}`
58
59			`static int gcplus_pcmcia_shutdown(void)`
60			`{`
61			`/* disable IRQs */`
62			`free_irq( S0_CD_IRQ, NULL);`
63
64			`/* Shutdown PCMCIA power */`
65			`mdelay(2); // 2msec`
66			`*PCMCIA_Power &= ~0x03;`
67
68			`return 0;`
69			`}`
70
71			`static int gcplus_pcmcia_socket_state(struct pcmcia_state_array`
72			`*state_array){`
73			`unsigned long levels;`
74
75			`if(state_array->size<1) return -1;`
76
77			`memset(state_array->state, 0,`
78			`(state_array->size)*sizeof(struct pcmcia_state));`
79
80			`levels=*PCMCIA_Status;`
81
82			`state_array->state[0].detect=(levels & ADS_CS_ST_A_CD)?1:0;`
83			`state_array->state[0].ready=(levels & ADS_CS_ST_A_READY)?1:0;`
84			`state_array->state[0].bvd1= 0;`
85			`state_array->state[0].bvd2= 0;`
86			`state_array->state[0].wrprot=0;`
87			`state_array->state[0].vs_3v=0;`
88			`state_array->state[0].vs_Xv=0;`
89
90			`return 1;`
91			`}`
92
93			`static int gcplus_pcmcia_get_irq_info(struct pcmcia_irq_info *info)`
94			`{`
95			`if (info->sock > 1)`
96			`return -1;`
97
98			`if (info->sock == 0)`
99			`info->irq = S0_STS_IRQ;`
100
101			`return 0;`
102			`}`
103
104			`static int gcplus_pcmcia_configure_socket(const struct pcmcia_configure`
105			`*configure)`
106			`{`
107			`unsigned long flags;`
108
109			`if(configure->sock>1) return -1;`
110
111			`save_flags_cli(flags);`
112
113			`switch (configure->vcc) {`
114			`case 0:`
115			`*PCMCIA_Power &= ~(ADS_CS_PR_A_3V_POWER \| ADS_CS_PR_A_5V_POWER);`
116			`break;`
117
118			`case 50:`
119			`*PCMCIA_Power &= ~(ADS_CS_PR_A_3V_POWER \| ADS_CS_PR_A_5V_POWER);`
120			`*PCMCIA_Power \|= ADS_CS_PR_A_5V_POWER;`
121			`break;`
122
123			`case 33:`
124			`*PCMCIA_Power &= ~(ADS_CS_PR_A_3V_POWER \| ADS_CS_PR_A_5V_POWER);`
125			`*PCMCIA_Power \|= ADS_CS_PR_A_3V_POWER;`
126			`break;`
127
128			`default:`
129			`printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,`
130			`configure->vcc);`
131			`restore_flags(flags);`
132			`return -1;`
133			`}`
134
135			`/* Silently ignore Vpp, output enable, speaker enable. */`
136
137			`// Reset PCMCIA`
138			`*PCMCIA_Power &= ~ ADS_CS_PR_A_RESET;`
139			`udelay(12);`
140
141			`*PCMCIA_Power \|= ADS_CS_PR_A_RESET;`
142			`mdelay(30);`
143
144			`restore_flags(flags);`
145
146			`return 0;`
147			`}`
148
149			`static int gcplus_pcmcia_socket_init(int sock)`
150			`{`
151			`return 0;`
152			`}`
153
154			`static int gcplus_pcmcia_socket_suspend(int sock)`
155			`{`
156			`return 0;`
157			`}`
158
159			`struct pcmcia_low_level gcplus_pcmcia_ops = {`
160			`init: gcplus_pcmcia_init,`
161			`shutdown: gcplus_pcmcia_shutdown,`
162			`socket_state: gcplus_pcmcia_socket_state,`
163			`get_irq_info: gcplus_pcmcia_get_irq_info,`
164			`configure_socket: gcplus_pcmcia_configure_socket,`
165
166			`socket_init: gcplus_pcmcia_socket_init,`
167			`socket_suspend: gcplus_pcmcia_socket_suspend,`
168			`};`
169

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [pcmcia/] [sa1100_graphicsclient.c] - Blame information for rev 1774