X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Finclude%2Fdevices%2Fide.h;fp=palacios%2Finclude%2Fdevices%2Fide.h;h=940882b53ce4af6ddbd1c7e9e8bcdb68adb6da30;hp=0000000000000000000000000000000000000000;hb=30f88bcf48e9bf46f69a8ef16dbadfe66ce145c9;hpb=a1a2be8eb002e13b1eb6ccaca40e4396f8816402

diff --git a/palacios/include/devices/ide.h b/palacios/include/devices/ide.h
new file mode 100644
index 0000000..940882b
--- /dev/null
+++ b/palacios/include/devices/ide.h
@@ -0,0 +1,200 @@
+#ifndef __IDE_H__
+#define __IDE_H__
+
+
+#ifdef __V3VEE__
+#include <palacios/vmm_types.h>
+
+#ifdef __V3_32BIT__
+typedef long off_t;
+typedef sint32_t ssize_t;
+typedef unsigned int rd_bool;
+typedef uchar_t Bit8u;
+typedef ushort_t Bit16u;
+typedef uint32_t Bit32u;
+typedef uint64_t Bit64u;
+#endif
+
+
+typedef enum _sense {
+      SENSE_NONE = 0, 
+      SENSE_NOT_READY = 2, 
+      SENSE_ILLEGAL_REQUEST = 5,
+      SENSE_UNIT_ATTENTION = 6
+} sense_t ;
+
+typedef enum _asc {
+      ASC_INV_FIELD_IN_CMD_PACKET = 0x24,
+      ASC_MEDIUM_NOT_PRESENT = 0x3a,
+      ASC_SAVING_PARAMETERS_NOT_SUPPORTED = 0x39,
+      ASC_LOGICAL_BLOCK_OOR = 0x21
+} asc_t ;
+
+
+
+typedef struct  {
+  unsigned cylinders;
+  unsigned heads;
+  unsigned sectors;
+} device_image_t;
+
+
+
+
+struct interrupt_reason_t {
+  unsigned  c_d : 1; 
+  unsigned  i_o : 1; 
+  unsigned  rel : 1; 
+  unsigned  tag : 5; 
+};
+
+
+struct controller_status {
+  rd_bool busy;
+  rd_bool drive_ready;
+  rd_bool write_fault;
+  rd_bool seek_complete;
+  rd_bool drq;
+  rd_bool corrected_data;
+  rd_bool index_pulse;
+  unsigned int index_pulse_count;
+  rd_bool err;
+};
+
+
+
+
+
+struct  sense_info_t {
+  sense_t sense_key;
+
+  struct  {
+    Bit8u arr[4];
+  } information;
+
+  struct  {
+    Bit8u arr[4];
+  } specific_inf;
+
+  struct  {
+    Bit8u arr[3];
+  } key_spec;
+
+  Bit8u fruc;
+  Bit8u asc;
+  Bit8u ascq;
+};
+
+
+struct  error_recovery_t {
+  unsigned char data[8];
+};
+
+struct  cdrom_t {
+  rd_bool ready;
+  rd_bool locked;
+
+  struct cdrom_interface * cd;
+
+  uint32_t capacity;
+  int next_lba;
+  int remaining_blocks;
+
+  struct  currentStruct {
+    struct error_recovery_t error_recovery;
+  } current;
+
+};
+
+struct  atapi_t {
+  uint8_t command;
+  int drq_bytes;
+  int total_bytes_remaining;
+};
+
+
+typedef enum { IDE_NONE, IDE_DISK, IDE_CDROM } device_type_t;
+
+struct controller_t  {
+  struct controller_status status;
+  Bit8u    error_register;
+  Bit8u    head_no;
+
+  union {
+    Bit8u    sector_count;
+    struct interrupt_reason_t interrupt_reason;
+  };
+
+
+  Bit8u    sector_no;
+
+  union  {
+    Bit16u   cylinder_no;
+    Bit16u   byte_count;
+  };
+
+  Bit8u    buffer[2048]; 
+  Bit32u   buffer_index;
+  Bit32u   drq_index;
+  Bit8u    current_command;
+  Bit8u    sectors_per_block;
+  Bit8u    lba_mode;
+
+  struct  {
+    rd_bool reset;       // 0=normal, 1=reset controller
+    rd_bool disable_irq;     // 0=allow irq, 1=disable irq
+  } control;
+
+  Bit8u    reset_in_progress;
+  Bit8u    features;
+};
+
+
+
+
+struct  drive_t {
+  device_image_t  hard_drive;
+  device_type_t device_type;
+  // 512 byte buffer for ID drive command
+  // These words are stored in native word endian format, as
+  // they are fetched and returned via a return(), so
+  // there's no need to keep them in x86 endian format.
+  Bit16u id_drive[256];
+  
+  struct controller_t controller;
+  struct cdrom_t cdrom;
+  struct sense_info_t sense;
+  struct atapi_t atapi;
+  
+  Bit8u model_no[41];
+};
+
+
+// FIXME:
+// For each ATA channel we should have one controller struct
+// and an array of two drive structs
+struct  channel_t {
+  struct drive_t drives[2];
+  unsigned drive_select;
+  
+  Bit16u ioaddr1;
+  Bit16u ioaddr2;
+  Bit8u  irq;
+};
+
+
+
+
+
+struct ramdisk_t;
+
+
+
+
+
+
+#endif // ! __V3VEE__
+
+
+#endif
+