diff options
Diffstat (limited to 'drivers/scsi/esp_scsi.h')
| -rw-r--r-- | drivers/scsi/esp_scsi.h | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/scsi/esp_scsi.h b/drivers/scsi/esp_scsi.h index 8163dca2071b..aa87a6b72dcc 100644 --- a/drivers/scsi/esp_scsi.h +++ b/drivers/scsi/esp_scsi.h @@ -249,11 +249,7 @@ #define SYNC_DEFP_FAST 0x19 /* 10mb/s */ struct esp_cmd_priv { - union { - dma_addr_t dma_addr; - int num_sg; - } u; - + int num_sg; int cur_residue; struct scatterlist *cur_sg; int tot_residue; @@ -363,19 +359,6 @@ struct esp_driver_ops { void (*esp_write8)(struct esp *esp, u8 val, unsigned long reg); u8 (*esp_read8)(struct esp *esp, unsigned long reg); - /* Map and unmap DMA memory. Eventually the driver will be - * converted to the generic DMA API as soon as SBUS is able to - * cope with that. At such time we can remove this. - */ - dma_addr_t (*map_single)(struct esp *esp, void *buf, - size_t sz, int dir); - int (*map_sg)(struct esp *esp, struct scatterlist *sg, - int num_sg, int dir); - void (*unmap_single)(struct esp *esp, dma_addr_t addr, - size_t sz, int dir); - void (*unmap_sg)(struct esp *esp, struct scatterlist *sg, - int num_sg, int dir); - /* Return non-zero if there is an IRQ pending. Usually this * status bit lives in the DMA controller sitting in front of * the ESP. This has to be accurate or else the ESP interrupt @@ -435,7 +418,7 @@ struct esp { const struct esp_driver_ops *ops; struct Scsi_Host *host; - void *dev; + struct device *dev; struct esp_cmd_entry *active_cmd; @@ -490,11 +473,11 @@ struct esp { u32 flags; #define ESP_FLAG_DIFFERENTIAL 0x00000001 #define ESP_FLAG_RESETTING 0x00000002 -#define ESP_FLAG_DOING_SLOWCMD 0x00000004 #define ESP_FLAG_WIDE_CAPABLE 0x00000008 #define ESP_FLAG_QUICKIRQ_CHECK 0x00000010 #define ESP_FLAG_DISABLE_SYNC 0x00000020 #define ESP_FLAG_USE_FIFO 0x00000040 +#define ESP_FLAG_NO_DMA_MAP 0x00000080 u8 select_state; #define ESP_SELECT_NONE 0x00 /* Not selecting */ @@ -532,7 +515,7 @@ struct esp { u32 min_period; u32 radelay; - /* Slow command state. */ + /* ESP_CMD_SELAS command state */ u8 *cmd_bytes_ptr; int cmd_bytes_left; @@ -540,6 +523,11 @@ struct esp { void *dma; int dmarev; + + /* These are used by esp_send_pio_cmd() */ + u8 __iomem *fifo_reg; + int send_cmd_error; + u32 send_cmd_residual; }; /* A front-end driver for the ESP chip should do the following in @@ -568,16 +556,18 @@ struct esp { * example, the DMA engine has to be reset before ESP can * be programmed. * 11) If necessary, call dev_set_drvdata() as needed. - * 12) Call scsi_esp_register() with prepared 'esp' structure - * and a device pointer if possible. + * 12) Call scsi_esp_register() with prepared 'esp' structure. * 13) Check scsi_esp_register() return value, release all resources * if an error was returned. */ extern struct scsi_host_template scsi_esp_template; -extern int scsi_esp_register(struct esp *, struct device *); +extern int scsi_esp_register(struct esp *); extern void scsi_esp_unregister(struct esp *); extern irqreturn_t scsi_esp_intr(int, void *); extern void scsi_esp_cmd(struct esp *, u8); +extern void esp_send_pio_cmd(struct esp *esp, u32 dma_addr, u32 esp_count, + u32 dma_count, int write, u8 cmd); + #endif /* !(_ESP_SCSI_H) */ |