43 	readl(esp->dma_regs + (REG))
45 	writel((VAL), esp->dma_regs + (REG))
48 	*(volatile u32 *)(esp->dma_regs + (REG))
50 	do { *(volatile u32 *)(esp->dma_regs + (REG)) = (VAL); } while (0)
53 static void sun3x_esp_write8(struct esp *esp, u8 val, unsigned long reg)  in sun3x_esp_write8()  argument
55 	writeb(val, esp->regs + (reg * 4UL));  in sun3x_esp_write8()
58 static u8 sun3x_esp_read8(struct esp *esp, unsigned long reg)  in sun3x_esp_read8()  argument
60 	return readb(esp->regs + (reg * 4UL));  in sun3x_esp_read8()
63 static dma_addr_t sun3x_esp_map_single(struct esp *esp, void *buf,  in sun3x_esp_map_single()  argument
66 	return dma_map_single(esp->dev, buf, sz, dir);  in sun3x_esp_map_single()
69 static int sun3x_esp_map_sg(struct esp *esp, struct scatterlist *sg,  in sun3x_esp_map_sg()  argument
72 	return dma_map_sg(esp->dev, sg, num_sg, dir);  in sun3x_esp_map_sg()
75 static void sun3x_esp_unmap_single(struct esp *esp, dma_addr_t addr,  in sun3x_esp_unmap_single()  argument
78 	dma_unmap_single(esp->dev, addr, sz, dir);  in sun3x_esp_unmap_single()
81 static void sun3x_esp_unmap_sg(struct esp *esp, struct scatterlist *sg,  in sun3x_esp_unmap_sg()  argument
84 	dma_unmap_sg(esp->dev, sg, num_sg, dir);  in sun3x_esp_unmap_sg()
87 static int sun3x_esp_irq_pending(struct esp *esp)  in sun3x_esp_irq_pending()  argument
94 static void sun3x_esp_reset_dma(struct esp *esp)  in sun3x_esp_reset_dma()  argument
107 static void sun3x_esp_dma_drain(struct esp *esp)  in sun3x_esp_dma_drain()  argument
122 			       esp->host->unique_id);  in sun3x_esp_dma_drain()
129 static void sun3x_esp_dma_invalidate(struct esp *esp)  in sun3x_esp_dma_invalidate()  argument
138 			       "invalidate!\n", esp->host->unique_id);  in sun3x_esp_dma_invalidate()
151 static void sun3x_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,  in sun3x_esp_send_dma_cmd()  argument
158 	sun3x_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW);  in sun3x_esp_send_dma_cmd()
159 	sun3x_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED);  in sun3x_esp_send_dma_cmd()
169 	scsi_esp_cmd(esp, cmd);  in sun3x_esp_send_dma_cmd()
172 static int sun3x_esp_dma_error(struct esp *esp)  in sun3x_esp_dma_error()  argument
201 	struct esp *esp;  in esp_sun3x_probe()  local
205 	host = scsi_host_alloc(tpnt, sizeof(struct esp));  in esp_sun3x_probe()
210 	esp = shost_priv(host);  in esp_sun3x_probe()
212 	esp->host = host;  in esp_sun3x_probe()
213 	esp->dev = dev;  in esp_sun3x_probe()
214 	esp->ops = &sun3x_esp_ops;  in esp_sun3x_probe()
220 	esp->regs = ioremap_nocache(res->start, 0x20);  in esp_sun3x_probe()
221 	if (!esp->regs)  in esp_sun3x_probe()
228 	esp->dma_regs = ioremap_nocache(res->start, 0x10);  in esp_sun3x_probe()
230 	esp->command_block = dma_alloc_coherent(esp->dev, 16,  in esp_sun3x_probe()
231 						&esp->command_block_dma,  in esp_sun3x_probe()
233 	if (!esp->command_block)  in esp_sun3x_probe()
238 			  "SUN3X ESP", esp);  in esp_sun3x_probe()
242 	esp->scsi_id = 7;  in esp_sun3x_probe()
243 	esp->host->this_id = esp->scsi_id;  in esp_sun3x_probe()
244 	esp->scsi_id_mask = (1 << esp->scsi_id);  in esp_sun3x_probe()
245 	esp->cfreq = 20000000;  in esp_sun3x_probe()
247 	dev_set_drvdata(&dev->dev, esp);  in esp_sun3x_probe()
249 	err = scsi_esp_register(esp, &dev->dev);  in esp_sun3x_probe()
256 	free_irq(host->irq, esp);  in esp_sun3x_probe()
258 	dma_free_coherent(esp->dev, 16,  in esp_sun3x_probe()
259 			  esp->command_block,  in esp_sun3x_probe()
260 			  esp->command_block_dma);  in esp_sun3x_probe()
262 	iounmap(esp->dma_regs);  in esp_sun3x_probe()
264 	iounmap(esp->regs);  in esp_sun3x_probe()
273 	struct esp *esp = dev_get_drvdata(&dev->dev);  in esp_sun3x_remove()  local
274 	unsigned int irq = esp->host->irq;  in esp_sun3x_remove()
277 	scsi_esp_unregister(esp);  in esp_sun3x_remove()
283 	free_irq(irq, esp);  in esp_sun3x_remove()
284 	dma_free_coherent(esp->dev, 16,  in esp_sun3x_remove()
285 			  esp->command_block,  in esp_sun3x_remove()
286 			  esp->command_block_dma);  in esp_sun3x_remove()
288 	scsi_host_put(esp->host);  in esp_sun3x_remove()