ATA: Add the fis struct for SATA

new file mode 100644
index 0000000..b0f6169
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc.
+ *		Dave Liu <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+/*
+* Register - Host to Device FIS
+*/
+typedef struct sata_fis_h2d {
+	u8 fis_type;
+	u8 pm_port_c;
+	u8 command;
+	u8 features;
+	u8 lba_low;
+	u8 lba_mid;
+	u8 lba_high;
+	u8 device;
+	u8 lba_low_exp;
+	u8 lba_mid_exp;
+	u8 lba_high_exp;
+	u8 features_exp;
+	u8 sector_count;
+	u8 sector_count_exp;
+	u8 res1;
+	u8 control;
+	u8 res2[4];
+} __attribute__ ((packed)) sata_fis_h2d_t;
+
+/*
+* Register - Host to Device FIS for read/write FPDMA queued
+*/
+typedef struct sata_fis_h2d_ncq {
+	u8 fis_type;
+	u8 pm_port_c;
+	u8 command;
+	u8 sector_count_low;
+	u8 lba_low;
+	u8 lba_mid;
+	u8 lba_high;
+	u8 device;
+	u8 lba_low_exp;
+	u8 lba_mid_exp;
+	u8 lba_high_exp;
+	u8 sector_count_high;
+	u8 tag;
+	u8 res1;
+	u8 res2;
+	u8 control;
+	u8 res3[4];
+} __attribute__ ((packed)) sata_fis_h2d_ncq_t;
+
+/*
+* Register - Device to Host FIS
+*/
+typedef struct sata_fis_d2h {
+	u8 fis_type;
+	u8 pm_port_i;
+	u8 status;
+	u8 error;
+	u8 lba_low;
+	u8 lba_mid;
+	u8 lba_high;
+	u8 device;
+	u8 lba_low_exp;
+	u8 lba_mid_exp;
+	u8 lba_high_exp;
+	u8 res1;
+	u8 sector_count;
+	u8 sector_count_exp;
+	u8 res2[2];
+	u8 res3[4];
+} __attribute__ ((packed)) sata_fis_d2h_t;
+
+/*
+* DMA Setup - Device to Host or Host to Device FIS
+*/
+typedef struct sata_fis_dma_setup {
+	u8 fis_type;
+	u8 pm_port_dir_int_act;
+	u8 res1;
+	u8 res2;
+	u32 dma_buffer_id_low;
+	u32 dma_buffer_id_high;
+	u32 res3;
+	u32 dma_buffer_offset;
+	u32 dma_transfer_count;
+	u32 res4;
+} __attribute__ ((packed)) sata_fis_dma_setup_t;
+
+/*
+* PIO Setup - Device to Host FIS
+*/
+typedef struct sata_fis_pio_setup {
+	u8 fis_type;
+	u8 pm_port_dir_int;
+	u8 status;
+	u8 error;
+	u8 lba_low;
+	u8 lba_mid;
+	u8 lba_high;
+	u8 res1;
+	u8 lba_low_exp;
+	u8 lba_mid_exp;
+	u8 lba_high_exp;
+	u8 res2;
+	u8 sector_count;
+	u8 sector_count_exp;
+	u8 res3;
+	u8 e_status;
+	u16 transfer_count;
+	u16 res4;
+} __attribute__ ((packed)) sata_fis_pio_setup_t;
+
+/*
+* Data - Host to Device or Device to Host FIS
+*/
+typedef struct sata_fis_data {
+	u8 fis_type;
+	u8 pm_port;
+	u8 res1;
+	u8 res2;
+	u32 data[2048];
+} __attribute__ ((packed)) sata_fis_data_t;
+
+/* fis_type - SATA FIS type
+ */
+enum sata_fis_type {
+	SATA_FIS_TYPE_REGISTER_H2D		= 0x27,
+	SATA_FIS_TYPE_REGISTER_D2H		= 0x34,
+	SATA_FIS_TYPE_DMA_ACT_D2H		= 0x39,
+	SATA_FIS_TYPE_DMA_SETUP_BI		= 0x41,
+	SATA_FIS_TYPE_DATA_BI			= 0x46,
+	SATA_FIS_TYPE_BIST_ACT_BI		= 0x58,
+	SATA_FIS_TYPE_PIO_SETUP_D2H		= 0x5F,
+	SATA_FIS_TYPE_SET_DEVICE_BITS_D2H	= 0xA1,
+};