static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count, u32 dma_count, int write, u8 cmd) { struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); u8 *fifo = esp->regs + ESP_FDATA * 16; cmd &= ~ESP_CMD_DMA; mep->error = 0; if (write) { scsi_esp_cmd(esp, cmd); while (1) { unsigned int n; n = mac_esp_wait_for_fifo(esp); if (!n) break; if (n > esp_count) n = esp_count; esp_count -= n; MAC_ESP_PIO_LOOP("%2@,%0@+", n); if (!esp_count) break; if (mac_esp_wait_for_intr(esp)) break; if (((esp->sreg & ESP_STAT_PMASK) != ESP_DIP) && ((esp->sreg & ESP_STAT_PMASK) != ESP_MIP)) break; esp->ireg = esp_read8(ESP_INTRPT); if ((esp->ireg & (ESP_INTR_DC | ESP_INTR_BSERV)) != ESP_INTR_BSERV) break; scsi_esp_cmd(esp, ESP_CMD_TI); } } else { scsi_esp_cmd(esp, ESP_CMD_FLUSH); if (esp_count >= MAC_ESP_FIFO_SIZE) MAC_ESP_PIO_FILL("%0@+,%2@", esp_count); else MAC_ESP_PIO_LOOP("%0@+,%2@", esp_count); scsi_esp_cmd(esp, cmd); while (esp_count) { unsigned int n; if (mac_esp_wait_for_intr(esp)) break; if (((esp->sreg & ESP_STAT_PMASK) != ESP_DOP) && ((esp->sreg & ESP_STAT_PMASK) != ESP_MOP)) break; esp->ireg = esp_read8(ESP_INTRPT); if ((esp->ireg & (ESP_INTR_DC | ESP_INTR_BSERV)) != ESP_INTR_BSERV) break; n = MAC_ESP_FIFO_SIZE - (esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES); if (n > esp_count) n = esp_count; if (n == MAC_ESP_FIFO_SIZE) { MAC_ESP_PIO_FILL("%0@+,%2@", esp_count); } else { esp_count -= n; MAC_ESP_PIO_LOOP("%0@+,%2@", n); } scsi_esp_cmd(esp, ESP_CMD_TI); } } }
static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count, u32 dma_count, int write, u8 cmd) { unsigned long flags; struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); u8 *fifo = esp->regs + ESP_FDATA * 16; local_irq_save(flags); cmd &= ~ESP_CMD_DMA; mep->error = 0; if (write) { scsi_esp_cmd(esp, cmd); if (!mac_esp_wait_for_intr(esp)) { if (mac_esp_wait_for_fifo(esp)) esp_count = 0; } else { esp_count = 0; } } else { scsi_esp_cmd(esp, ESP_CMD_FLUSH); if (esp_count >= MAC_ESP_FIFO_SIZE) MAC_ESP_PIO_FILL("%0@+,%2@", esp_count); else MAC_ESP_PIO_LOOP("%0@+,%2@", esp_count); scsi_esp_cmd(esp, cmd); } while (esp_count) { unsigned int n; if (mac_esp_wait_for_intr(esp)) { mep->error = 1; break; } if (esp->sreg & ESP_STAT_SPAM) { printk(KERN_ERR PFX "gross error\n"); mep->error = 1; break; } n = esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES; if (write) { if (n > esp_count) n = esp_count; esp_count -= n; MAC_ESP_PIO_LOOP("%2@,%0@+", n); if ((esp->sreg & ESP_STAT_PMASK) == ESP_STATP) break; if (esp_count) { esp->ireg = esp_read8(ESP_INTRPT); if (esp->ireg & ESP_INTR_DC) break; scsi_esp_cmd(esp, ESP_CMD_TI); } } else { esp->ireg = esp_read8(ESP_INTRPT); if (esp->ireg & ESP_INTR_DC) break; n = MAC_ESP_FIFO_SIZE - n; if (n > esp_count) n = esp_count; if (n == MAC_ESP_FIFO_SIZE) { MAC_ESP_PIO_FILL("%0@+,%2@", esp_count); } else { esp_count -= n; MAC_ESP_PIO_LOOP("%0@+,%2@", n); } scsi_esp_cmd(esp, ESP_CMD_TI); } } local_irq_restore(flags); }