static void dma_init_read(struct NCR_ESP *esp, __u32 addr, int length)
{
struct fastlane_dma_registers *dregs =
(struct fastlane_dma_registers *) (esp->dregs);
unsigned long *t;
cache_clear(addr, length);
dma_clear(esp);
t = (unsigned long *)((addr & 0x00ffffff) + esp->edev);
dregs->clear_strobe = 0;
*t = addr;
ctrl_data = (ctrl_data & FASTLANE_DMA_MASK) | FASTLANE_DMA_ENABLE;
dregs->ctrl_reg = ctrl_data;
}
/***************************************************************** Detection */
int __init fastlane_esp_detect(Scsi_Host_Template *tpnt)
{
struct NCR_ESP *esp;
struct zorro_dev *z = NULL;
unsigned long address;
if ((z = zorro_find_device(ZORRO_PROD_PHASE5_BLIZZARD_1230_II_FASTLANE_Z3_CYBERSCSI_CYBERSTORM060, z))) {
unsigned long board = z->resource.start;
if (request_mem_region(board+FASTLANE_ESP_ADDR,
sizeof(struct ESP_regs), "NCR53C9x")) {
/* Check if this is really a fastlane controller. The problem
* is that also the cyberstorm and blizzard controllers use
* this ID value. Fortunately only Fastlane maps in Z3 space
*/
if (board < 0x1000000) {
goto err_release;
}
esp = esp_allocate(tpnt, (void *)board+FASTLANE_ESP_ADDR);
/* Do command transfer with programmed I/O */
esp->do_pio_cmds = 1;
/* Required functions */
esp->dma_bytes_sent = &dma_bytes_sent;
esp->dma_can_transfer = &dma_can_transfer;
esp->dma_dump_state = &dma_dump_state;
esp->dma_init_read = &dma_init_read;
esp->dma_init_write = &dma_init_write;
esp->dma_ints_off = &dma_ints_off;
esp->dma_ints_on = &dma_ints_on;
esp->dma_irq_p = &dma_irq_p;
esp->dma_ports_p = &dma_ports_p;
esp->dma_setup = &dma_setup;
/* Optional functions */
esp->dma_barrier = 0;
esp->dma_drain = 0;
esp->dma_invalidate = 0;
esp->dma_irq_entry = 0;
esp->dma_irq_exit = &dma_irq_exit;
esp->dma_led_on = &dma_led_on;
esp->dma_led_off = &dma_led_off;
esp->dma_poll = 0;
esp->dma_reset = 0;
/* Initialize the portBits (enable IRQs) */
ctrl_data = (FASTLANE_DMA_FCODE |
#ifndef NODMAIRQ
FASTLANE_DMA_EDI |
#endif
FASTLANE_DMA_ESI);
/* SCSI chip clock */
esp->cfreq = 40000000;
/* Map the physical address space into virtual kernel space */
address = (unsigned long)
ioremap_nocache(board, z->resource.end-board+1);
if(!address){
printk("Could not remap Fastlane controller memory!");
goto err_unregister;
}
/* The DMA registers on the Fastlane are mapped
* relative to the device (i.e. in the same Zorro
* I/O block).
*/
esp->dregs = (void *)(address + FASTLANE_DMA_ADDR);
/* ESP register base */
esp->eregs = (struct ESP_regs *)(address + FASTLANE_ESP_ADDR);
/* Board base */
esp->edev = (void *) address;
/* Set the command buffer */
esp->esp_command = (volatile unsigned char*) cmd_buffer;
esp->esp_command_dvma = virt_to_bus(cmd_buffer);
esp->irq = IRQ_AMIGA_PORTS;
esp->slot = board+FASTLANE_ESP_ADDR;
if (request_irq(IRQ_AMIGA_PORTS, esp_intr, SA_SHIRQ,
"Fastlane SCSI", esp_intr)) {
printk(KERN_WARNING "Fastlane: Could not get IRQ%d, aborting.\n", IRQ_AMIGA_PORTS);
goto err_unmap;
}
/* Controller ID */
esp->scsi_id = 7;
/* We don't have a differential SCSI-bus. */
esp->diff = 0;
dma_clear(esp);
esp_initialize(esp);
printk("ESP: Total of %d ESP hosts found, %d actually in use.\n", nesps, esps_in_use);
esps_running = esps_in_use;
return esps_in_use;
}
}
return 0;
err_unmap:
iounmap((void *)address);
err_unregister:
scsi_unregister (esp->ehost);
err_release:
release_mem_region(z->resource.start+FASTLANE_ESP_ADDR,
sizeof(struct ESP_regs));
return 0;
}
/***************************************************************** Detection */
int fastlane_esp_detect(Scsi_Host_Template *tpnt)
{
struct NCR_ESP *esp;
const struct ConfigDev *esp_dev;
unsigned int key;
unsigned long address;
if ((key = zorro_find(ZORRO_PROD_PHASE5_BLIZZARD_1230_II_FASTLANE_Z3_CYBERSCSI_CYBERSTORM060, 0, 0))){
esp_dev = zorro_get_board(key);
/* Check if this is really a fastlane controller. The problem
* is that also the cyberstorm and blizzard controllers use
* this ID value. Fortunately only Fastlane maps in Z3 space
*/
if((unsigned long)esp_dev->cd_BoardAddr < 0x1000000)
return 0;
esp = esp_allocate(tpnt, (void *) esp_dev);
/* Do command transfer with programmed I/O */
esp->do_pio_cmds = 1;
/* Required functions */
esp->dma_bytes_sent = &dma_bytes_sent;
esp->dma_can_transfer = &dma_can_transfer;
esp->dma_dump_state = &dma_dump_state;
esp->dma_init_read = &dma_init_read;
esp->dma_init_write = &dma_init_write;
esp->dma_ints_off = &dma_ints_off;
esp->dma_ints_on = &dma_ints_on;
esp->dma_irq_p = &dma_irq_p;
esp->dma_ports_p = &dma_ports_p;
esp->dma_setup = &dma_setup;
/* Optional functions */
esp->dma_barrier = 0;
esp->dma_drain = 0;
esp->dma_invalidate = 0;
esp->dma_irq_entry = 0;
esp->dma_irq_exit = &dma_irq_exit;
esp->dma_led_on = &dma_led_on;
esp->dma_led_off = &dma_led_off;
esp->dma_poll = 0;
esp->dma_reset = 0;
/* Initialize the portBits (enable IRQs) */
ctrl_data = (FASTLANE_DMA_FCODE |
#ifndef NODMAIRQ
FASTLANE_DMA_EDI |
#endif
FASTLANE_DMA_ESI);
/* SCSI chip clock */
esp->cfreq = 40000000;
/* Map the physical address space into virtual kernel space */
address = (unsigned long)
kernel_map((unsigned long)esp_dev->cd_BoardAddr,
esp_dev->cd_BoardSize,
KERNELMAP_NOCACHE_SER,
NULL);
if(!address){
printk("Could not remap Fastlane controller memory!");
scsi_unregister (esp->ehost);
return 0;
}
/* The DMA registers on the Fastlane are mapped
* relative to the device (i.e. in the same Zorro
* I/O block).
*/
esp->dregs = (void *)(address + FASTLANE_DMA_ADDR);
/* ESP register base */
esp->eregs = (struct ESP_regs *)(address + FASTLANE_ESP_ADDR);
/* Board base */
esp->edev = (void *) address;
/* Set the command buffer */
esp->esp_command = (volatile unsigned char*) cmd_buffer;
esp->esp_command_dvma = virt_to_bus((unsigned long) cmd_buffer);
esp->irq = IRQ_AMIGA_PORTS;
request_irq(IRQ_AMIGA_PORTS, esp_intr, 0,
"Fastlane SCSI", esp_intr);
/* Controller ID */
esp->scsi_id = 7;
/* Check for differential SCSI-bus */
/* What is this stuff? */
esp->diff = 0;
dma_clear(esp);
esp_initialize(esp);
zorro_config_board(key, 0);
printk("\nESP: Total of %d ESP hosts found, %d actually in use.\n", nesps,esps_in_use);
esps_running = esps_in_use;
return esps_in_use;
}
return 0;
}
