--- /dev/null
+/*
+ comedi/drivers/amcc_s5933.h
+
+ Stuff for AMCC S5933 PCI Controller
+
+ Author: Michal Dobes <majkl@tesnet.cz>
+
+ Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver
+ made by Andrea Cisternino <acister@pcape1.pi.infn.it>
+ and as result of espionage from MITE code made by David A. Schleef.
+ Thanks to AMCC for their on-line documentation and bus master DMA
+ example.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <linux/pci.h>
+#include <linux/comedidev.h>
+
+#include "amcc_s5933.h"
+
+#ifdef PCI_SUPPORT_VER1
+#error Sorry, no support for 2.1.55 and older! :-((((
+#endif
+
+
+/****************************************************************************/
+
+/* build list of amcc cards in this system */
+void pci_card_list_init(unsigned short pci_vendor, char display)
+{
+ struct pci_dev *pcidev;
+ struct pcilst_struct *amcc,*last;
+ int i;
+
+ amcc_devices=NULL;
+ last=NULL;
+
+#if LINUX_VERSION_CODE < 0x020300
+ for(pcidev=pci_devices;pcidev;pcidev=pcidev->next){
+#else
+ pci_for_each_dev(pcidev){
+#endif
+ if(pcidev->vendor==pci_vendor){
+ amcc=kmalloc(sizeof(*amcc),GFP_KERNEL);
+ memset(amcc,0,sizeof(*amcc));
+
+ amcc->pcidev=pcidev;
+ if (last) { last->next=amcc; }
+ else { amcc_devices=amcc; }
+ last=amcc;
+
+#if LINUX_VERSION_CODE < 0x020300
+ amcc->vendor=pcidev->vendor;
+ amcc->device=pcidev->device;
+ amcc->master=pcidev->master;
+ amcc->pci_bus=pcidev->bus->number;
+ amcc->pci_slot=PCI_SLOT(pcidev->devfn);
+ amcc->pci_func=PCI_FUNC(pcidev->devfn);
+ for (i=0;i<5;i++)
+ amcc->io_addr[i]=pcidev->base_address[i] & ~3UL;
+ amcc->irq=pcidev->irq;
+#else
+ amcc->vendor=pcidev->vendor;
+ amcc->device=pcidev->device;
+#if 0
+ amcc->master=pcidev->master; // how get this information under 2.4 kernels?
+#endif
+ amcc->pci_bus=pcidev->bus->number;
+ amcc->pci_slot=PCI_SLOT(pcidev->devfn);
+ amcc->pci_func=PCI_FUNC(pcidev->devfn);
+ for (i=0;i<5;i++)
+ amcc->io_addr[i]=pcidev->resource[i].start & ~3UL;
+ amcc->irq=pcidev->irq;
+#endif
+
+ }
+ }
+
+ if (display) pci_card_list_display();
+}
+
+/****************************************************************************/
+/* free up list of amcc cards in this system */
+void pci_card_list_cleanup(unsigned short pci_vendor)
+{
+ struct pcilst_struct *amcc,*next;
+
+ for(amcc=amcc_devices;amcc;amcc=next){
+ next=amcc->next;
+ kfree(amcc);
+ }
+
+ amcc_devices=NULL;
+}
+
+/****************************************************************************/
+/* find first unused card with this device_id */
+struct pcilst_struct *find_free_pci_card_by_device(unsigned short vendor_id, unsigned short device_id)
+{
+ struct pcilst_struct *amcc,*next;
+
+ for (amcc=amcc_devices;amcc;amcc=next) {
+ next=amcc->next;
+ if ((!amcc->used)&&(amcc->device==device_id)&&(amcc->vendor==vendor_id)) return amcc;
+
+ }
+
+ return NULL;
+}
+
+/****************************************************************************/
+/* find card on requested position */
+int find_free_pci_card_by_position(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot, struct pcilst_struct **card)
+{
+ struct pcilst_struct *amcc,*next;
+
+ *card=NULL;
+ for (amcc=amcc_devices;amcc;amcc=next) {
+ next=amcc->next;
+ if ((amcc->vendor==vendor_id)&&(amcc->device==device_id)&&(amcc->pci_bus==pci_bus)&&(amcc->pci_slot==pci_slot)) {
+ if (!(amcc->used)) {
+ *card=amcc;
+ return 0; // ok, card is found
+ } else {
+ return 2; // card exist but is used
+ }
+ }
+ }
+
+ return 1; // no card found
+}
+
+/****************************************************************************/
+/* mark card as used */
+int pci_card_alloc(struct pcilst_struct *amcc)
+{
+ if (!amcc) return -1;
+
+ if (amcc->used) return 1;
+ amcc->used=1;
+ return 0;
+}
+
+/****************************************************************************/
+/* mark card as free */
+int pci_card_free(struct pcilst_struct *amcc)
+{
+ if (!amcc) return -1;
+
+ if (!amcc->used) return 1;
+ amcc->used=0;
+ return 0;
+}
+
+/****************************************************************************/
+/* display list of found cards */
+void pci_card_list_display(void)
+{
+ struct pcilst_struct *amcc,*next;
+
+ printk("List of pci cards\n");
+ printk("bus:slot:func vendor device master io_amcc io_daq irq used\n");
+
+ for (amcc=amcc_devices;amcc;amcc=next) {
+ next=amcc->next;
+ printk("%2d %2d %2d 0x%4x 0x%4x %3s 0x%4x 0x%4x %2d %2d\n",
+ amcc->pci_bus,amcc->pci_slot,amcc->pci_func,amcc->vendor,amcc->device,amcc->master?"yes":"no",
+ amcc->io_addr[0],amcc->io_addr[2],amcc->irq,amcc->used);
+
+ }
+}
+
+/****************************************************************************/
+/* return all card information for driver */
+int pci_card_data(struct pcilst_struct *amcc,
+ unsigned char *pci_bus, unsigned char *pci_slot, unsigned char *pci_func,
+ unsigned short *io_addr, unsigned short *irq, unsigned short *master)
+{
+ int i;
+
+ if (!amcc) return -1;
+ *pci_bus=amcc->pci_bus;
+ *pci_slot=amcc->pci_slot;
+ *pci_func=amcc->pci_func;
+ for (i=0;i<5;i++)
+ io_addr[i]=amcc->io_addr[i];
+ *irq=amcc->irq;
+ *master=amcc->master;
+ return 0;
+}
+
+/****************************************************************************/
+/* select and alloc card */
+struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot)
+{
+ struct pcilst_struct *card;
+
+ if ((pci_bus<1)&(pci_slot<1)) { // use autodetection
+ if ((card=find_free_pci_card_by_device(vendor_id,device_id))==NULL) {
+ rt_printk(" - Unused card not found in system!\n");
+ return NULL;
+ }
+ } else {
+ switch (find_free_pci_card_by_position(vendor_id,device_id,pci_bus,pci_slot,&card)) {
+ case 1:
+ rt_printk(" - Card not found on requested position b:s %d:%d!\n",pci_bus,pci_slot);
+ return NULL;
+ case 2:
+ rt_printk(" - Card on requested position is used b:s %d:%d!\n",pci_bus,pci_slot);
+ return NULL;
+ }
+ }
+
+
+ if (pci_card_alloc(card)!=0) {
+ rt_printk(" - Can't allocate card!\n");
+ return NULL;
+ }
+
+ return card;
+}
+
/****************************************************************************/
-/* build list of amcc cards in this system */
-void pci_card_list_init(unsigned short pci_vendor, char display)
-{
- struct pci_dev *pcidev;
- struct pcilst_struct *amcc,*last;
- int i;
-
- amcc_devices=NULL;
- last=NULL;
-
-#if LINUX_VERSION_CODE < 0x020300
- for(pcidev=pci_devices;pcidev;pcidev=pcidev->next){
-#else
- pci_for_each_dev(pcidev){
-#endif
- if(pcidev->vendor==pci_vendor){
- amcc=kmalloc(sizeof(*amcc),GFP_KERNEL);
- memset(amcc,0,sizeof(*amcc));
-
- amcc->pcidev=pcidev;
- if (last) { last->next=amcc; }
- else { amcc_devices=amcc; }
- last=amcc;
-
-#if LINUX_VERSION_CODE < 0x020300
- amcc->vendor=pcidev->vendor;
- amcc->device=pcidev->device;
- amcc->master=pcidev->master;
- amcc->pci_bus=pcidev->bus->number;
- amcc->pci_slot=PCI_SLOT(pcidev->devfn);
- amcc->pci_func=PCI_FUNC(pcidev->devfn);
- for (i=0;i<5;i++)
- amcc->io_addr[i]=pcidev->base_address[i] & ~3UL;
- amcc->irq=pcidev->irq;
-#else
- amcc->vendor=pcidev->vendor;
- amcc->device=pcidev->device;
-#if 0
- amcc->master=pcidev->master; // how get this information under 2.4 kernels?
-#endif
- amcc->pci_bus=pcidev->bus->number;
- amcc->pci_slot=PCI_SLOT(pcidev->devfn);
- amcc->pci_func=PCI_FUNC(pcidev->devfn);
- for (i=0;i<5;i++)
- amcc->io_addr[i]=pcidev->resource[i].start & ~3UL;
- amcc->irq=pcidev->irq;
-#endif
-
- }
- }
-
- if (display) pci_card_list_display();
-}
-
-/****************************************************************************/
-/* free up list of amcc cards in this system */
-void pci_card_list_cleanup(unsigned short pci_vendor)
-{
- struct pcilst_struct *amcc,*next;
-
- for(amcc=amcc_devices;amcc;amcc=next){
- next=amcc->next;
- kfree(amcc);
- }
-
- amcc_devices=NULL;
-}
-
-/****************************************************************************/
-/* find first unused card with this device_id */
-struct pcilst_struct *find_free_pci_card_by_device(unsigned short vendor_id, unsigned short device_id)
-{
- struct pcilst_struct *amcc,*next;
-
- for (amcc=amcc_devices;amcc;amcc=next) {
- next=amcc->next;
- if ((!amcc->used)&&(amcc->device==device_id)&&(amcc->vendor==vendor_id)) return amcc;
-
- }
-
- return NULL;
-}
-
-/****************************************************************************/
-/* find card on requested position */
-int find_free_pci_card_by_position(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot, struct pcilst_struct **card)
-{
- struct pcilst_struct *amcc,*next;
-
- *card=NULL;
- for (amcc=amcc_devices;amcc;amcc=next) {
- next=amcc->next;
- if ((amcc->vendor==vendor_id)&&(amcc->device==device_id)&&(amcc->pci_bus==pci_bus)&&(amcc->pci_slot==pci_slot)) {
- if (!(amcc->used)) {
- *card=amcc;
- return 0; // ok, card is found
- } else {
- return 2; // card exist but is used
- }
- }
- }
-
- return 1; // no card found
-}
-
-/****************************************************************************/
-/* mark card as used */
-int pci_card_alloc(struct pcilst_struct *amcc)
-{
- if (!amcc) return -1;
-
- if (amcc->used) return 1;
- amcc->used=1;
- return 0;
-}
-
-/****************************************************************************/
-/* mark card as free */
-int pci_card_free(struct pcilst_struct *amcc)
-{
- if (!amcc) return -1;
-
- if (!amcc->used) return 1;
- amcc->used=0;
- return 0;
-}
-
-/****************************************************************************/
-/* display list of found cards */
-void pci_card_list_display(void)
-{
- struct pcilst_struct *amcc,*next;
-
- printk("List of pci cards\n");
- printk("bus:slot:func vendor device master io_amcc io_daq irq used\n");
-
- for (amcc=amcc_devices;amcc;amcc=next) {
- next=amcc->next;
- printk("%2d %2d %2d 0x%4x 0x%4x %3s 0x%4x 0x%4x %2d %2d\n",
- amcc->pci_bus,amcc->pci_slot,amcc->pci_func,amcc->vendor,amcc->device,amcc->master?"yes":"no",
- amcc->io_addr[0],amcc->io_addr[2],amcc->irq,amcc->used);
-
- }
-}
-
-/****************************************************************************/
-/* return all card information for driver */
-int pci_card_data(struct pcilst_struct *amcc,
- unsigned char *pci_bus, unsigned char *pci_slot, unsigned char *pci_func,
- unsigned short *io_addr, unsigned short *irq, unsigned short *master)
-{
- int i;
-
- if (!amcc) return -1;
- *pci_bus=amcc->pci_bus;
- *pci_slot=amcc->pci_slot;
- *pci_func=amcc->pci_func;
- for (i=0;i<5;i++)
- io_addr[i]=amcc->io_addr[i];
- *irq=amcc->irq;
- *master=amcc->master;
- return 0;
-}
-
-/****************************************************************************/
-/* select and alloc card */
-struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot)
-{
- struct pcilst_struct *card;
-
- if ((pci_bus<1)&(pci_slot<1)) { // use autodetection
- if ((card=find_free_pci_card_by_device(vendor_id,device_id))==NULL) {
- rt_printk(" - Unused card not found in system!\n");
- return NULL;
- }
- } else {
- switch (find_free_pci_card_by_position(vendor_id,device_id,pci_bus,pci_slot,&card)) {
- case 1:
- rt_printk(" - Card not found on requested position b:s %d:%d!\n",pci_bus,pci_slot);
- return NULL;
- case 2:
- rt_printk(" - Card on requested position is used b:s %d:%d!\n",pci_bus,pci_slot);
- return NULL;
- }
- }
-
-
- if (pci_card_alloc(card)!=0) {
- rt_printk(" - Can't allocate card!\n");
- return NULL;
- }
-
- return card;
-}
-
#endif
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