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linux/drivers/isdn/hardware/eicon/diva.c
Jeff Garzik 15aafa2f9d Remove pointless casts from void pointers 
Mostly in and around irq handlers.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck Tony" <tony.luck@intel.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Karsten Keil <kkeil@suse.de>
Acked-by: "John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:01 -08:00

658 lines
17 KiB
C
Raw Blame History

/* $Id: diva.c,v 1.21.4.1 2004/05/08 14:33:43 armin Exp $ */
#define CARDTYPE_H_WANT_DATA 1
#define CARDTYPE_H_WANT_IDI_DATA 0
#define CARDTYPE_H_WANT_RESOURCE_DATA 0
#define CARDTYPE_H_WANT_FILE_DATA 0
#include "platform.h"
#include "debuglib.h"
#include "cardtype.h"
#include "pc.h"
#include "di_defs.h"
#include "di.h"
#include "io.h"
#include "pc_maint.h"
#include "xdi_msg.h"
#include "xdi_adapter.h"
#include "diva_pci.h"
#include "diva.h"
#ifdef CONFIG_ISDN_DIVAS_PRIPCI
#include "os_pri.h"
#endif
#ifdef CONFIG_ISDN_DIVAS_BRIPCI
#include "os_bri.h"
#include "os_4bri.h"
#endif
PISDN_ADAPTER IoAdapters[MAX_ADAPTER];
extern IDI_CALL Requests[MAX_ADAPTER];
extern int create_adapter_proc(diva_os_xdi_adapter_t * a);
extern void remove_adapter_proc(diva_os_xdi_adapter_t * a);
#define DivaIdiReqFunc(N) \
static void DivaIdiRequest##N(ENTITY *e) \
{ if ( IoAdapters[N] ) (* IoAdapters[N]->DIRequest)(IoAdapters[N], e) ; }
/*
** Create own 32 Adapters
*/
DivaIdiReqFunc(0)
DivaIdiReqFunc(1)
DivaIdiReqFunc(2)
DivaIdiReqFunc(3)
DivaIdiReqFunc(4)
DivaIdiReqFunc(5)
DivaIdiReqFunc(6)
DivaIdiReqFunc(7)
DivaIdiReqFunc(8)
DivaIdiReqFunc(9)
DivaIdiReqFunc(10)
DivaIdiReqFunc(11)
DivaIdiReqFunc(12)
DivaIdiReqFunc(13)
DivaIdiReqFunc(14)
DivaIdiReqFunc(15)
DivaIdiReqFunc(16)
DivaIdiReqFunc(17)
DivaIdiReqFunc(18)
DivaIdiReqFunc(19)
DivaIdiReqFunc(20)
DivaIdiReqFunc(21)
DivaIdiReqFunc(22)
DivaIdiReqFunc(23)
DivaIdiReqFunc(24)
DivaIdiReqFunc(25)
DivaIdiReqFunc(26)
DivaIdiReqFunc(27)
DivaIdiReqFunc(28)
DivaIdiReqFunc(29)
DivaIdiReqFunc(30)
DivaIdiReqFunc(31)
/*
** LOCALS
*/
static LIST_HEAD(adapter_queue);
typedef struct _diva_get_xlog {
word command;
byte req;
byte rc;
byte data[sizeof(struct mi_pc_maint)];
} diva_get_xlog_t;
typedef struct _diva_supported_cards_info {
int CardOrdinal;
diva_init_card_proc_t init_card;
} diva_supported_cards_info_t;
static diva_supported_cards_info_t divas_supported_cards[] = {
#ifdef CONFIG_ISDN_DIVAS_PRIPCI
/*
PRI Cards
*/
{CARDTYPE_DIVASRV_P_30M_PCI, diva_pri_init_card},
/*
PRI Rev.2 Cards
*/
{CARDTYPE_DIVASRV_P_30M_V2_PCI, diva_pri_init_card},
/*
PRI Rev.2 VoIP Cards
*/
{CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI, diva_pri_init_card},
#endif
#ifdef CONFIG_ISDN_DIVAS_BRIPCI
/*
4BRI Rev 1 Cards
*/
{CARDTYPE_DIVASRV_Q_8M_PCI, diva_4bri_init_card},
{CARDTYPE_DIVASRV_VOICE_Q_8M_PCI, diva_4bri_init_card},
/*
4BRI Rev 2 Cards
*/
{CARDTYPE_DIVASRV_Q_8M_V2_PCI, diva_4bri_init_card},
{CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI, diva_4bri_init_card},
/*
4BRI Based BRI Rev 2 Cards
*/
{CARDTYPE_DIVASRV_B_2M_V2_PCI, diva_4bri_init_card},
{CARDTYPE_DIVASRV_B_2F_PCI, diva_4bri_init_card},
{CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI, diva_4bri_init_card},
/*
BRI
*/
{CARDTYPE_MAESTRA_PCI, diva_bri_init_card},
#endif
/*
EOL
*/
{-1}
};
static void diva_init_request_array(void);
static void *divas_create_pci_card(int handle, void *pci_dev_handle);
static diva_os_spin_lock_t adapter_lock;
static int diva_find_free_adapters(int base, int nr)
{
int i;
for (i = 0; i < nr; i++) {
if (IoAdapters[base + i]) {
return (-1);
}
}
return (0);
}
static diva_os_xdi_adapter_t *diva_q_get_next(struct list_head * what)
{
diva_os_xdi_adapter_t *a = NULL;
if (what && (what->next != &adapter_queue))
a = list_entry(what->next, diva_os_xdi_adapter_t, link);
return(a);
}
/* --------------------------------------------------------------------------
Add card to the card list
-------------------------------------------------------------------------- */
void *diva_driver_add_card(void *pdev, unsigned long CardOrdinal)
{
diva_os_spin_lock_magic_t old_irql;
diva_os_xdi_adapter_t *pdiva, *pa;
int i, j, max, nr;
for (i = 0; divas_supported_cards[i].CardOrdinal != -1; i++) {
if (divas_supported_cards[i].CardOrdinal == CardOrdinal) {
if (!(pdiva = divas_create_pci_card(i, pdev))) {
return NULL;
}
switch (CardOrdinal) {
case CARDTYPE_DIVASRV_Q_8M_PCI:
case CARDTYPE_DIVASRV_VOICE_Q_8M_PCI:
case CARDTYPE_DIVASRV_Q_8M_V2_PCI:
case CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI:
max = MAX_ADAPTER - 4;
nr = 4;
break;
default:
max = MAX_ADAPTER;
nr = 1;
}
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "add card");
for (i = 0; i < max; i++) {
if (!diva_find_free_adapters(i, nr)) {
pdiva->controller = i + 1;
pdiva->xdi_adapter.ANum = pdiva->controller;
IoAdapters[i] = &pdiva->xdi_adapter;
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "add card");
create_adapter_proc(pdiva); /* add adapter to proc file system */
DBG_LOG(("add %s:%d",
CardProperties
[CardOrdinal].Name,
pdiva->controller))
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "add card");
pa = pdiva;
for (j = 1; j < nr; j++) { /* slave adapters, if any */
pa = diva_q_get_next(&pa->link);
if (pa && !pa->interface.cleanup_adapter_proc) {
pa->controller = i + 1 + j;
pa->xdi_adapter.ANum = pa->controller;
IoAdapters[i + j] = &pa->xdi_adapter;
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "add card");
DBG_LOG(("add slave adapter (%d)",
pa->controller))
create_adapter_proc(pa); /* add adapter to proc file system */
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "add card");
} else {
DBG_ERR(("slave adapter problem"))
break;
}
}
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "add card");
return (pdiva);
}
}
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "add card");
/*
Not able to add adapter - remove it and return error
*/
DBG_ERR(("can not alloc request array"))
diva_driver_remove_card(pdiva);
return NULL;
}
}
return NULL;
}
/* --------------------------------------------------------------------------
Called on driver load, MAIN, main, DriverEntry
-------------------------------------------------------------------------- */
int divasa_xdi_driver_entry(void)
{
diva_os_initialize_spin_lock(&adapter_lock, "adapter");
memset(&IoAdapters[0], 0x00, sizeof(IoAdapters));
diva_init_request_array();
return (0);
}
/* --------------------------------------------------------------------------
Remove adapter from list
-------------------------------------------------------------------------- */
static diva_os_xdi_adapter_t *get_and_remove_from_queue(void)
{
diva_os_spin_lock_magic_t old_irql;
diva_os_xdi_adapter_t *a = NULL;
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "driver_unload");
if (!list_empty(&adapter_queue)) {
a = list_entry(adapter_queue.next, diva_os_xdi_adapter_t, link);
list_del(adapter_queue.next);
}
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "driver_unload");
return (a);
}
/* --------------------------------------------------------------------------
Remove card from the card list
-------------------------------------------------------------------------- */
void diva_driver_remove_card(void *pdiva)
{
diva_os_spin_lock_magic_t old_irql;
diva_os_xdi_adapter_t *a[4];
diva_os_xdi_adapter_t *pa;
int i;
pa = a[0] = (diva_os_xdi_adapter_t *) pdiva;
a[1] = a[2] = a[3] = NULL;
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "remode adapter");
for (i = 1; i < 4; i++) {
if ((pa = diva_q_get_next(&pa->link))
&& !pa->interface.cleanup_adapter_proc) {
a[i] = pa;
} else {
break;
}
}
for (i = 0; ((i < 4) && a[i]); i++) {
list_del(&a[i]->link);
}
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "driver_unload");
(*(a[0]->interface.cleanup_adapter_proc)) (a[0]);
for (i = 0; i < 4; i++) {
if (a[i]) {
if (a[i]->controller) {
DBG_LOG(("remove adapter (%d)",
a[i]->controller)) IoAdapters[a[i]->controller - 1] = NULL;
remove_adapter_proc(a[i]);
}
diva_os_free(0, a[i]);
}
}
}
/* --------------------------------------------------------------------------
Create diva PCI adapter and init internal adapter structures
-------------------------------------------------------------------------- */
static void *divas_create_pci_card(int handle, void *pci_dev_handle)
{
diva_supported_cards_info_t *pI = &divas_supported_cards[handle];
diva_os_spin_lock_magic_t old_irql;
diva_os_xdi_adapter_t *a;
DBG_LOG(("found %d-%s", pI->CardOrdinal, CardProperties[pI->CardOrdinal].Name))
if (!(a = (diva_os_xdi_adapter_t *) diva_os_malloc(0, sizeof(*a)))) {
DBG_ERR(("A: can't alloc adapter"));
return NULL;
}
memset(a, 0x00, sizeof(*a));
a->CardIndex = handle;
a->CardOrdinal = pI->CardOrdinal;
a->Bus = DIVAS_XDI_ADAPTER_BUS_PCI;
a->xdi_adapter.cardType = a->CardOrdinal;
a->resources.pci.bus = diva_os_get_pci_bus(pci_dev_handle);
a->resources.pci.func = diva_os_get_pci_func(pci_dev_handle);
a->resources.pci.hdev = pci_dev_handle;
/*
Add master adapter first, so slave adapters will receive higher
numbers as master adapter
*/
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "found_pci_card");
list_add_tail(&a->link, &adapter_queue);
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "found_pci_card");
if ((*(pI->init_card)) (a)) {
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "found_pci_card");
list_del(&a->link);
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "found_pci_card");
diva_os_free(0, a);
DBG_ERR(("A: can't get adapter resources"));
return NULL;
}
return (a);
}
/* --------------------------------------------------------------------------
Called on driver unload FINIT, finit, Unload
-------------------------------------------------------------------------- */
void divasa_xdi_driver_unload(void)
{
diva_os_xdi_adapter_t *a;
while ((a = get_and_remove_from_queue())) {
if (a->interface.cleanup_adapter_proc) {
(*(a->interface.cleanup_adapter_proc)) (a);
}
if (a->controller) {
IoAdapters[a->controller - 1] = NULL;
remove_adapter_proc(a);
}
diva_os_free(0, a);
}
diva_os_destroy_spin_lock(&adapter_lock, "adapter");
}
/*
** Receive and process command from user mode utility
*/
void *diva_xdi_open_adapter(void *os_handle, const void __user *src,
int length,
divas_xdi_copy_from_user_fn_t cp_fn)
{
diva_xdi_um_cfg_cmd_t msg;
diva_os_xdi_adapter_t *a = NULL;
diva_os_spin_lock_magic_t old_irql;
struct list_head *tmp;
if (length < sizeof(diva_xdi_um_cfg_cmd_t)) {
DBG_ERR(("A: A(?) open, msg too small (%d < %d)",
length, sizeof(diva_xdi_um_cfg_cmd_t)))
return NULL;
}
if ((*cp_fn) (os_handle, &msg, src, sizeof(msg)) <= 0) {
DBG_ERR(("A: A(?) open, write error"))
return NULL;
}
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "open_adapter");
list_for_each(tmp, &adapter_queue) {
a = list_entry(tmp, diva_os_xdi_adapter_t, link);
if (a->controller == (int)msg.adapter)
break;
a = NULL;
}
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "open_adapter");
if (!a) {
DBG_ERR(("A: A(%d) open, adapter not found", msg.adapter))
}
return (a);
}
/*
** Easy cleanup mailbox status
*/
void diva_xdi_close_adapter(void *adapter, void *os_handle)
{
diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) adapter;
a->xdi_mbox.status &= ~DIVA_XDI_MBOX_BUSY;
if (a->xdi_mbox.data) {
diva_os_free(0, a->xdi_mbox.data);
a->xdi_mbox.data = NULL;
}
}
int
diva_xdi_write(void *adapter, void *os_handle, const void __user *src,
int length, divas_xdi_copy_from_user_fn_t cp_fn)
{
diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) adapter;
void *data;
if (a->xdi_mbox.status & DIVA_XDI_MBOX_BUSY) {
DBG_ERR(("A: A(%d) write, mbox busy", a->controller))
return (-1);
}
if (length < sizeof(diva_xdi_um_cfg_cmd_t)) {
DBG_ERR(("A: A(%d) write, message too small (%d < %d)",
a->controller, length,
sizeof(diva_xdi_um_cfg_cmd_t)))
return (-3);
}
if (!(data = diva_os_malloc(0, length))) {
DBG_ERR(("A: A(%d) write, ENOMEM", a->controller))
return (-2);
}
length = (*cp_fn) (os_handle, data, src, length);
if (length > 0) {
if ((*(a->interface.cmd_proc))
(a, (diva_xdi_um_cfg_cmd_t *) data, length)) {
length = -3;
}
} else {
DBG_ERR(("A: A(%d) write error (%d)", a->controller,
length))
}
diva_os_free(0, data);
return (length);
}
/*
** Write answers to user mode utility, if any
*/
int
diva_xdi_read(void *adapter, void *os_handle, void __user *dst,
int max_length, divas_xdi_copy_to_user_fn_t cp_fn)
{
diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) adapter;
int ret;
if (!(a->xdi_mbox.status & DIVA_XDI_MBOX_BUSY)) {
DBG_ERR(("A: A(%d) rx mbox empty", a->controller))
return (-1);
}
if (!a->xdi_mbox.data) {
a->xdi_mbox.status &= ~DIVA_XDI_MBOX_BUSY;
DBG_ERR(("A: A(%d) rx ENOMEM", a->controller))
return (-2);
}
if (max_length < a->xdi_mbox.data_length) {
DBG_ERR(("A: A(%d) rx buffer too short(%d < %d)",
a->controller, max_length,
a->xdi_mbox.data_length))
return (-3);
}
ret = (*cp_fn) (os_handle, dst, a->xdi_mbox.data,
a->xdi_mbox.data_length);
if (ret > 0) {
diva_os_free(0, a->xdi_mbox.data);
a->xdi_mbox.data = NULL;
a->xdi_mbox.status &= ~DIVA_XDI_MBOX_BUSY;
}
return (ret);
}
irqreturn_t diva_os_irq_wrapper(int irq, void *context)
{
diva_os_xdi_adapter_t *a = context;
diva_xdi_clear_interrupts_proc_t clear_int_proc;
if (!a || !a->xdi_adapter.diva_isr_handler)
return IRQ_NONE;
if ((clear_int_proc = a->clear_interrupts_proc)) {
(*clear_int_proc) (a);
a->clear_interrupts_proc = NULL;
return IRQ_HANDLED;
}
(*(a->xdi_adapter.diva_isr_handler)) (&a->xdi_adapter);
return IRQ_HANDLED;
}
static void diva_init_request_array(void)
{
Requests[0] = DivaIdiRequest0;
Requests[1] = DivaIdiRequest1;
Requests[2] = DivaIdiRequest2;
Requests[3] = DivaIdiRequest3;
Requests[4] = DivaIdiRequest4;
Requests[5] = DivaIdiRequest5;
Requests[6] = DivaIdiRequest6;
Requests[7] = DivaIdiRequest7;
Requests[8] = DivaIdiRequest8;
Requests[9] = DivaIdiRequest9;
Requests[10] = DivaIdiRequest10;
Requests[11] = DivaIdiRequest11;
Requests[12] = DivaIdiRequest12;
Requests[13] = DivaIdiRequest13;
Requests[14] = DivaIdiRequest14;
Requests[15] = DivaIdiRequest15;
Requests[16] = DivaIdiRequest16;
Requests[17] = DivaIdiRequest17;
Requests[18] = DivaIdiRequest18;
Requests[19] = DivaIdiRequest19;
Requests[20] = DivaIdiRequest20;
Requests[21] = DivaIdiRequest21;
Requests[22] = DivaIdiRequest22;
Requests[23] = DivaIdiRequest23;
Requests[24] = DivaIdiRequest24;
Requests[25] = DivaIdiRequest25;
Requests[26] = DivaIdiRequest26;
Requests[27] = DivaIdiRequest27;
Requests[28] = DivaIdiRequest28;
Requests[29] = DivaIdiRequest29;
Requests[30] = DivaIdiRequest30;
Requests[31] = DivaIdiRequest31;
}
void diva_xdi_display_adapter_features(int card)
{
dword features;
if (!card || ((card - 1) >= MAX_ADAPTER) || !IoAdapters[card - 1]) {
return;
}
card--;
features = IoAdapters[card]->Properties.Features;
DBG_LOG(("FEATURES FOR ADAPTER: %d", card + 1))
DBG_LOG((" DI_FAX3 : %s",
(features & DI_FAX3) ? "Y" : "N"))
DBG_LOG((" DI_MODEM : %s",
(features & DI_MODEM) ? "Y" : "N"))
DBG_LOG((" DI_POST : %s",
(features & DI_POST) ? "Y" : "N"))
DBG_LOG((" DI_V110 : %s",
(features & DI_V110) ? "Y" : "N"))
DBG_LOG((" DI_V120 : %s",
(features & DI_V120) ? "Y" : "N"))
DBG_LOG((" DI_POTS : %s",
(features & DI_POTS) ? "Y" : "N"))
DBG_LOG((" DI_CODEC : %s",
(features & DI_CODEC) ? "Y" : "N"))
DBG_LOG((" DI_MANAGE : %s",
(features & DI_MANAGE) ? "Y" : "N"))
DBG_LOG((" DI_V_42 : %s",
(features & DI_V_42) ? "Y" : "N"))
DBG_LOG((" DI_EXTD_FAX : %s",
(features & DI_EXTD_FAX) ? "Y" : "N"))
DBG_LOG((" DI_AT_PARSER : %s",
(features & DI_AT_PARSER) ? "Y" : "N"))
DBG_LOG((" DI_VOICE_OVER_IP : %s",
(features & DI_VOICE_OVER_IP) ? "Y" : "N"))
}
void diva_add_slave_adapter(diva_os_xdi_adapter_t * a)
{
diva_os_spin_lock_magic_t old_irql;
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "add_slave");
list_add_tail(&a->link, &adapter_queue);
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "add_slave");
}
int diva_card_read_xlog(diva_os_xdi_adapter_t * a)
{
diva_get_xlog_t *req;
byte *data;
if (!a->xdi_adapter.Initialized || !a->xdi_adapter.DIRequest) {
return (-1);
}
if (!(data = diva_os_malloc(0, sizeof(struct mi_pc_maint)))) {
return (-1);
}
memset(data, 0x00, sizeof(struct mi_pc_maint));
if (!(req = diva_os_malloc(0, sizeof(*req)))) {
diva_os_free(0, data);
return (-1);
}
req->command = 0x0400;
req->req = LOG;
req->rc = 0x00;
(*(a->xdi_adapter.DIRequest)) (&a->xdi_adapter, (ENTITY *) req);
if (!req->rc || req->req) {
diva_os_free(0, data);
diva_os_free(0, req);
return (-1);
}
memcpy(data, &req->req, sizeof(struct mi_pc_maint));
diva_os_free(0, req);
a->xdi_mbox.data_length = sizeof(struct mi_pc_maint);
a->xdi_mbox.data = data;
a->xdi_mbox.status = DIVA_XDI_MBOX_BUSY;
return (0);
}
void xdiFreeFile(void *handle)
{
}
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