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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [pcmcia/] [au1000_db1x00.c] - Blame information for rev 1765

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/*
 *
 * Alchemy Semi Db1x00 boards specific pcmcia routines.
 *
 * Copyright 2002 MontaVista Software Inc.
 * Author: MontaVista Software, Inc.
 *              ppopov@mvista.com or source@mvista.com
 *
 * ########################################################################
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * ########################################################################
 *
 *
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/config.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/tqueue.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/version.h>
#include <linux/types.h>
 
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/ss.h>
#include <pcmcia/bulkmem.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/bus_ops.h>
#include "cs_internal.h"
 
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
 
#include <asm/au1000.h>
#include <asm/au1000_pcmcia.h>
 
#include <asm/db1x00.h>
 
static BCSR * const bcsr = (BCSR *)0xAE000000;
 
static int db1x00_pcmcia_init(struct pcmcia_init *init)
{
        bcsr->pcmcia = 0; /* turn off power */
        au_sync_delay(2);
        return PCMCIA_NUM_SOCKS;
}
 
static int db1x00_pcmcia_shutdown(void)
{
        bcsr->pcmcia = 0; /* turn off power */
        au_sync_delay(2);
        return 0;
}
 
static int
db1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
{
        u32 inserted;
        unsigned char vs;
 
        if(sock > PCMCIA_MAX_SOCK) return -1;
 
        state->ready = 0;
        state->vs_Xv = 0;
        state->vs_3v = 0;
        state->detect = 0;
 
        if (sock == 0) {
                vs = bcsr->status & 0x3;
                inserted = !(bcsr->status & (1<<4));
        }
        else {
                vs = (bcsr->status & 0xC)>>2;
                inserted = !(bcsr->status & (1<<5));
        }
 
        DEBUG(KERN_DEBUG "db1x00 socket %d: inserted %d, vs %d\n",
                        sock, inserted, vs);
 
        if (inserted) {
                switch (vs) {
                        case 0:
                        case 2:
                                state->vs_3v=1;
                                break;
                        case 3: /* 5V */
                                break;
                        default:
                                /* return without setting 'detect' */
                                printk(KERN_ERR "db1x00 bad VS (%d)\n",
                                                vs);
                                return -1;
                }
                state->detect = 1;
                state->ready = 1;
        }
        else {
                /* if the card was previously inserted and then ejected,
                 * we should turn off power to it
                 */
                if ((sock == 0) && (bcsr->pcmcia & BCSR_PCMCIA_PC0RST)) {
                        bcsr->pcmcia &= ~(BCSR_PCMCIA_PC0RST |
                                        BCSR_PCMCIA_PC0DRVEN |
                                        BCSR_PCMCIA_PC0VPP |
                                        BCSR_PCMCIA_PC0VCC);
                }
                else if ((sock == 1) && (bcsr->pcmcia & BCSR_PCMCIA_PC1RST)) {
                        bcsr->pcmcia &= ~(BCSR_PCMCIA_PC1RST |
                                        BCSR_PCMCIA_PC1DRVEN |
                                        BCSR_PCMCIA_PC1VPP |
                                        BCSR_PCMCIA_PC1VCC);
                }
        }
 
        state->bvd1=1;
        state->bvd2=1;
        state->wrprot=0;
        return 1;
}
 
 
static int db1x00_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
{
        if(info->sock > PCMCIA_MAX_SOCK) return -1;
 
        if(info->sock == 0) {
                info->irq = AU1000_GPIO_2;
        }
        else
                info->irq = AU1000_GPIO_5;
 
        return 0;
}
 
 
static int
db1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure)
{
        u16 pwr;
        int sock = configure->sock;
 
        if(sock > PCMCIA_MAX_SOCK) return -1;
 
        DEBUG(KERN_DEBUG "socket %d Vcc %dV Vpp %dV, reset %d\n",
                        sock, configure->vcc, configure->vpp, configure->reset);
 
        /* pcmcia reg was set to zero at init time. Be careful when
         * initializing a socket not to wipe out the settings of the
         * other socket.
         */
        pwr = bcsr->pcmcia;
        pwr &= ~(0xf << sock*8); /* clear voltage settings */
 
        switch(configure->vcc){
                case 0:  /* Vcc 0 */
                        pwr |= SET_VCC_VPP(0,0,sock);
                        break;
                case 50: /* Vcc 5V */
                        switch(configure->vpp) {
                                case 0:
                                        pwr |= SET_VCC_VPP(2,0,sock);
                                        break;
                                case 50:
                                        pwr |= SET_VCC_VPP(2,1,sock);
                                        break;
                                case 12:
                                        pwr |= SET_VCC_VPP(2,2,sock);
                                        break;
                                case 33:
                                default:
                                        pwr |= SET_VCC_VPP(0,0,sock);
                                        printk("%s: bad Vcc/Vpp (%d:%d)\n",
                                                        __FUNCTION__,
                                                        configure->vcc,
                                                        configure->vpp);
                                        break;
                        }
                        break;
                case 33: /* Vcc 3.3V */
                        switch(configure->vpp) {
                                case 0:
                                        pwr |= SET_VCC_VPP(1,0,sock);
                                        break;
                                case 12:
                                        pwr |= SET_VCC_VPP(1,2,sock);
                                        break;
                                case 33:
                                        pwr |= SET_VCC_VPP(1,1,sock);
                                        break;
                                case 50:
                                default:
                                        pwr |= SET_VCC_VPP(0,0,sock);
                                        printk("%s: bad Vcc/Vpp (%d:%d)\n",
                                                        __FUNCTION__,
                                                        configure->vcc,
                                                        configure->vpp);
                                        break;
                        }
                        break;
                default: /* what's this ? */
                        pwr |= SET_VCC_VPP(0,0,sock);
                        printk(KERN_ERR "%s: bad Vcc %d\n",
                                        __FUNCTION__, configure->vcc);
                        break;
        }
 
        bcsr->pcmcia = pwr;
        au_sync_delay(300);
 
        if (sock == 0) {
                if (!configure->reset) {
                        pwr |= BCSR_PCMCIA_PC0DRVEN;
                        bcsr->pcmcia = pwr;
                        au_sync_delay(300);
                        pwr |= BCSR_PCMCIA_PC0RST;
                        bcsr->pcmcia = pwr;
                        au_sync_delay(100);
                }
                else {
                        pwr &= ~(BCSR_PCMCIA_PC0RST | BCSR_PCMCIA_PC0DRVEN);
                        bcsr->pcmcia = pwr;
                        au_sync_delay(100);
                }
        }
        else {
                if (!configure->reset) {
                        pwr |= BCSR_PCMCIA_PC1DRVEN;
                        bcsr->pcmcia = pwr;
                        au_sync_delay(300);
                        pwr |= BCSR_PCMCIA_PC1RST;
                        bcsr->pcmcia = pwr;
                        au_sync_delay(100);
                }
                else {
                        pwr &= ~(BCSR_PCMCIA_PC1RST | BCSR_PCMCIA_PC1DRVEN);
                        bcsr->pcmcia = pwr;
                        au_sync_delay(100);
                }
        }
        return 0;
}
 
struct pcmcia_low_level db1x00_pcmcia_ops = {
        db1x00_pcmcia_init,
        db1x00_pcmcia_shutdown,
        db1x00_pcmcia_socket_state,
        db1x00_pcmcia_get_irq_info,
        db1x00_pcmcia_configure_socket
};

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [pcmcia/] [au1000_db1x00.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`*`
3			`* Alchemy Semi Db1x00 boards specific pcmcia routines.`
4			`*`
5			`* Copyright 2002 MontaVista Software Inc.`
6			`* Author: MontaVista Software, Inc.`
7			`* ppopov@mvista.com or source@mvista.com`
8			`*`
9			`* ########################################################################`
10			`*`
11			`* This program is free software; you can distribute it and/or modify it`
12			`* under the terms of the GNU General Public License (Version 2) as`
13			`* published by the Free Software Foundation.`
14			`*`
15			`* This program is distributed in the hope it will be useful, but WITHOUT`
16			`* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or`
17			`* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License`
18			`* for more details.`
19			`*`
20			`* You should have received a copy of the GNU General Public License along`
21			`* with this program; if not, write to the Free Software Foundation, Inc.,`
22			`* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.`
23			`*`
24			`* ########################################################################`
25			`*`
26			`*`
27			`*/`
28			`#include <linux/module.h>`
29			`#include <linux/init.h>`
30			`#include <linux/config.h>`
31			`#include <linux/delay.h>`
32			`#include <linux/ioport.h>`
33			`#include <linux/kernel.h>`
34			`#include <linux/tqueue.h>`
35			`#include <linux/timer.h>`
36			`#include <linux/mm.h>`
37			`#include <linux/proc_fs.h>`
38			`#include <linux/version.h>`
39			`#include <linux/types.h>`
40
41			`#include <pcmcia/version.h>`
42			`#include <pcmcia/cs_types.h>`
43			`#include <pcmcia/cs.h>`
44			`#include <pcmcia/ss.h>`
45			`#include <pcmcia/bulkmem.h>`
46			`#include <pcmcia/cistpl.h>`
47			`#include <pcmcia/bus_ops.h>`
48			`#include "cs_internal.h"`
49
50			`#include <asm/io.h>`
51			`#include <asm/irq.h>`
52			`#include <asm/system.h>`
53
54			`#include <asm/au1000.h>`
55			`#include <asm/au1000_pcmcia.h>`
56
57			`#include <asm/db1x00.h>`
58
59			`static BCSR * const bcsr = (BCSR *)0xAE000000;`
60
61			`static int db1x00_pcmcia_init(struct pcmcia_init *init)`
62			`{`
63			`bcsr->pcmcia = 0; /* turn off power */`
64			`au_sync_delay(2);`
65			`return PCMCIA_NUM_SOCKS;`
66			`}`
67
68			`static int db1x00_pcmcia_shutdown(void)`
69			`{`
70			`bcsr->pcmcia = 0; /* turn off power */`
71			`au_sync_delay(2);`
72			`return 0;`
73			`}`
74
75			`static int`
76			`db1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)`
77			`{`
78			`u32 inserted;`
79			`unsigned char vs;`
80
81			`if(sock > PCMCIA_MAX_SOCK) return -1;`
82
83			`state->ready = 0;`
84			`state->vs_Xv = 0;`
85			`state->vs_3v = 0;`
86			`state->detect = 0;`
87
88			`if (sock == 0) {`
89			`vs = bcsr->status & 0x3;`
90			`inserted = !(bcsr->status & (1<<4));`
91			`}`
92			`else {`
93			`vs = (bcsr->status & 0xC)>>2;`
94			`inserted = !(bcsr->status & (1<<5));`
95			`}`
96
97			`DEBUG(KERN_DEBUG "db1x00 socket %d: inserted %d, vs %d\n",`
98			`sock, inserted, vs);`
99
100			`if (inserted) {`
101			`switch (vs) {`
102			`case 0:`
103			`case 2:`
104			`state->vs_3v=1;`
105			`break;`
106			`case 3: /* 5V */`
107			`break;`
108			`default:`
109			`/* return without setting 'detect' */`
110			`printk(KERN_ERR "db1x00 bad VS (%d)\n",`
111			`vs);`
112			`return -1;`
113			`}`
114			`state->detect = 1;`
115			`state->ready = 1;`
116			`}`
117			`else {`
118			`/* if the card was previously inserted and then ejected,`
119			`* we should turn off power to it`
120			`*/`
121			`if ((sock == 0) && (bcsr->pcmcia & BCSR_PCMCIA_PC0RST)) {`
122			`bcsr->pcmcia &= ~(BCSR_PCMCIA_PC0RST \|`
123			`BCSR_PCMCIA_PC0DRVEN \|`
124			`BCSR_PCMCIA_PC0VPP \|`
125			`BCSR_PCMCIA_PC0VCC);`
126			`}`
127			`else if ((sock == 1) && (bcsr->pcmcia & BCSR_PCMCIA_PC1RST)) {`
128			`bcsr->pcmcia &= ~(BCSR_PCMCIA_PC1RST \|`
129			`BCSR_PCMCIA_PC1DRVEN \|`
130			`BCSR_PCMCIA_PC1VPP \|`
131			`BCSR_PCMCIA_PC1VCC);`
132			`}`
133			`}`
134
135			`state->bvd1=1;`
136			`state->bvd2=1;`
137			`state->wrprot=0;`
138			`return 1;`
139			`}`
140
141
142			`static int db1x00_pcmcia_get_irq_info(struct pcmcia_irq_info *info)`
143			`{`
144			`if(info->sock > PCMCIA_MAX_SOCK) return -1;`
145
146			`if(info->sock == 0) {`
147			`info->irq = AU1000_GPIO_2;`
148			`}`
149			`else`
150			`info->irq = AU1000_GPIO_5;`
151
152			`return 0;`
153			`}`
154
155
156			`static int`
157			`db1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure)`
158			`{`
159			`u16 pwr;`
160			`int sock = configure->sock;`
161
162			`if(sock > PCMCIA_MAX_SOCK) return -1;`
163
164			`DEBUG(KERN_DEBUG "socket %d Vcc %dV Vpp %dV, reset %d\n",`
165			`sock, configure->vcc, configure->vpp, configure->reset);`
166
167			`/* pcmcia reg was set to zero at init time. Be careful when`
168			`* initializing a socket not to wipe out the settings of the`
169			`* other socket.`
170			`*/`
171			`pwr = bcsr->pcmcia;`
172			`pwr &= ~(0xf << sock8); / clear voltage settings */`
173
174			`switch(configure->vcc){`
175			`case 0: /* Vcc 0 */`
176			`pwr \|= SET_VCC_VPP(0,0,sock);`
177			`break;`
178			`case 50: /* Vcc 5V */`
179			`switch(configure->vpp) {`
180			`case 0:`
181			`pwr \|= SET_VCC_VPP(2,0,sock);`
182			`break;`
183			`case 50:`
184			`pwr \|= SET_VCC_VPP(2,1,sock);`
185			`break;`
186			`case 12:`
187			`pwr \|= SET_VCC_VPP(2,2,sock);`
188			`break;`
189			`case 33:`
190			`default:`
191			`pwr \|= SET_VCC_VPP(0,0,sock);`
192			`printk("%s: bad Vcc/Vpp (%d:%d)\n",`
193			`__FUNCTION__,`
194			`configure->vcc,`
195			`configure->vpp);`
196			`break;`
197			`}`
198			`break;`
199			`case 33: /* Vcc 3.3V */`
200			`switch(configure->vpp) {`
201			`case 0:`
202			`pwr \|= SET_VCC_VPP(1,0,sock);`
203			`break;`
204			`case 12:`
205			`pwr \|= SET_VCC_VPP(1,2,sock);`
206			`break;`
207			`case 33:`
208			`pwr \|= SET_VCC_VPP(1,1,sock);`
209			`break;`
210			`case 50:`
211			`default:`
212			`pwr \|= SET_VCC_VPP(0,0,sock);`
213			`printk("%s: bad Vcc/Vpp (%d:%d)\n",`
214			`__FUNCTION__,`
215			`configure->vcc,`
216			`configure->vpp);`
217			`break;`
218			`}`
219			`break;`
220			`default: /* what's this ? */`
221			`pwr \|= SET_VCC_VPP(0,0,sock);`
222			`printk(KERN_ERR "%s: bad Vcc %d\n",`
223			`__FUNCTION__, configure->vcc);`
224			`break;`
225			`}`
226
227			`bcsr->pcmcia = pwr;`
228			`au_sync_delay(300);`
229
230			`if (sock == 0) {`
231			`if (!configure->reset) {`
232			`pwr \|= BCSR_PCMCIA_PC0DRVEN;`
233			`bcsr->pcmcia = pwr;`
234			`au_sync_delay(300);`
235			`pwr \|= BCSR_PCMCIA_PC0RST;`
236			`bcsr->pcmcia = pwr;`
237			`au_sync_delay(100);`
238			`}`
239			`else {`
240			`pwr &= ~(BCSR_PCMCIA_PC0RST \| BCSR_PCMCIA_PC0DRVEN);`
241			`bcsr->pcmcia = pwr;`
242			`au_sync_delay(100);`
243			`}`
244			`}`
245			`else {`
246			`if (!configure->reset) {`
247			`pwr \|= BCSR_PCMCIA_PC1DRVEN;`
248			`bcsr->pcmcia = pwr;`
249			`au_sync_delay(300);`
250			`pwr \|= BCSR_PCMCIA_PC1RST;`
251			`bcsr->pcmcia = pwr;`
252			`au_sync_delay(100);`
253			`}`
254			`else {`
255			`pwr &= ~(BCSR_PCMCIA_PC1RST \| BCSR_PCMCIA_PC1DRVEN);`
256			`bcsr->pcmcia = pwr;`
257			`au_sync_delay(100);`
258			`}`
259			`}`
260			`return 0;`
261			`}`
262
263			`struct pcmcia_low_level db1x00_pcmcia_ops = {`
264			`db1x00_pcmcia_init,`
265			`db1x00_pcmcia_shutdown,`
266			`db1x00_pcmcia_socket_state,`
267			`db1x00_pcmcia_get_irq_info,`
268			`db1x00_pcmcia_configure_socket`
269			`};`