ide-cd: re-organize handling of quirky devices

Re-organize handling of quirky devices:

* Add struct cd_list_entry, ide_cd_quirks_list[] and ide_cd_flags() helper.

* Set flags returned by ide_cd_flags() in ide_cdrom_setup().

* Add IDE_CD_FLAG_VERTOS_{300_SDD,600_ESD} and IDE_CD_FLAG_SANYO_3CD flags.

* Move device quirks from ide_cdrom_setup() to ide_cd_quirks_list[].

* Rename IDE_CD_FLAG_NEC260 to IDE_CD_FLAG_PRE_ATAPI12 and handle
  quirky Stingray 8X CD-ROM using ide_cd_quirks_list[].

* Add IDE_CD_FLAG_FULL_CAPS_PAGE flag and handle quirky ACER 50X CD-ROM
  / WPI 32X CD-ROM using ide_cd_quirk_list[].

* Add IDE_CD_FLAG_PLAY_AUDIO_OK flag and handle quirky MATSHITA DVD-ROMs
  using ide_cd_quirks_list[].

* Add IDE_CD_FLAG_LE_SPEED_FIELDS flag and handle quirky ACER/AOpen 24X
  CD-ROM using ide_cd_quirk_list[].

* Fix some comments about quirky devices while at it.

There should be no functionality changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 4bd664dd1e44f9afc3a6dbf365bea7f68a9310f7..bd552328014a3cf522c6a572b81fe09a09d0543d 100644 (file)
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2377,12 +2377,7 @@ static int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
        struct packet_command cgc;
        int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
 
-       /*
-        * ACER50 (and others?) require the full spec length mode sense
-        * page capabilities size, but older drives break.
-        */
-       if (!(!strcmp(drive->id->model, "ATAPI CD ROM DRIVE 50X MAX") ||
-           !strcmp(drive->id->model, "WPI CDS-32X")))
+       if ((info->cd_flags & IDE_CD_FLAG_FULL_CAPS_PAGE) == 0)
                size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
 
        init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN);
@@ -2402,9 +2397,7 @@ static void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
        curspeed = *(u16 *)&buf[8 + 14];
        maxspeed = *(u16 *)&buf[8 +  8];
 
-       /* The ACER/AOpen 24X cdrom has the speed fields byte-swapped */
-       if (!drive->id->model[0] &&
-           !strncmp(drive->id->fw_rev, "241N", 4)) {
+       if (cd->cd_flags & IDE_CD_FLAG_LE_SPEED_FIELDS) {
                curspeed = le16_to_cpu(curspeed);
                maxspeed = le16_to_cpu(maxspeed);
        } else {
@@ -2627,8 +2620,7 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
                return nslots;
        }
 
-       if ((cd->cd_flags & IDE_CD_FLAG_NEC260) ||
-           !strcmp(drive->id->model,"STINGRAY 8422 IDE 8X CD-ROM 7-27-95")) {
+       if (cd->cd_flags & IDE_CD_FLAG_PRE_ATAPI12) {
                cd->cd_flags &= ~IDE_CD_FLAG_NO_EJECT;
                cdi->mask &= ~CDC_PLAY_AUDIO;
                return nslots;
@@ -2661,22 +2653,13 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
                cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
        if (buf[8 + 3] & 0x10)
                cdi->mask &= ~CDC_DVD_R;
-       if (buf[8 + 4] & 0x01)
+       if ((buf[8 + 4] & 0x01) || (cd->cd_flags & IDE_CD_FLAG_PLAY_AUDIO_OK))
                cdi->mask &= ~CDC_PLAY_AUDIO;
 
        mechtype = buf[8 + 6] >> 5;
        if (mechtype == mechtype_caddy || mechtype == mechtype_popup)
                cdi->mask |= CDC_CLOSE_TRAY;
 
-       /* Some drives used by Apple don't advertise audio play
-        * but they do support reading TOC & audio datas
-        */
-       if (strcmp(drive->id->model, "MATSHITADVD-ROM SR-8187") == 0 ||
-           strcmp(drive->id->model, "MATSHITADVD-ROM SR-8186") == 0 ||
-           strcmp(drive->id->model, "MATSHITADVD-ROM SR-8176") == 0 ||
-           strcmp(drive->id->model, "MATSHITADVD-ROM SR-8174") == 0)
-               cdi->mask &= ~CDC_PLAY_AUDIO;
-
        if (cdi->sanyo_slot > 0) {
                cdi->mask &= ~CDC_SELECT_DISC;
                nslots = 3;
@@ -2805,11 +2788,74 @@ static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
        return 0;
 }
 
+struct cd_list_entry {
+       const char      *id_model;
+       const char      *id_firmware;
+       unsigned int    cd_flags;
+};
+
+static const struct cd_list_entry ide_cd_quirks_list[] = {
+       /* Limit transfer size per interrupt. */
+       { "SAMSUNG CD-ROM SCR-2430", NULL,   IDE_CD_FLAG_LIMIT_NFRAMES      },
+       { "SAMSUNG CD-ROM SCR-2432", NULL,   IDE_CD_FLAG_LIMIT_NFRAMES      },
+       /* SCR-3231 doesn't support the SET_CD_SPEED command. */
+       { "SAMSUNG CD-ROM SCR-3231", NULL,   IDE_CD_FLAG_NO_SPEED_SELECT    },
+       /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
+       { "NEC CD-ROM DRIVE:260",    "1.01", IDE_CD_FLAG_TOCADDR_AS_BCD |
+                                            IDE_CD_FLAG_PRE_ATAPI12,       },
+       /* Vertos 300, some versions of this drive like to talk BCD. */
+       { "V003S0DS",                NULL,   IDE_CD_FLAG_VERTOS_300_SSD,    },
+       /* Vertos 600 ESD. */
+       { "V006E0DS",                NULL,   IDE_CD_FLAG_VERTOS_600_ESD,    },
+       /*
+        * Sanyo 3 CD changer uses a non-standard command for CD changing
+        * (by default standard ATAPI support for CD changers is used).
+        */
+       { "CD-ROM CDR-C3 G",         NULL,   IDE_CD_FLAG_SANYO_3CD          },
+       { "CD-ROM CDR-C3G",          NULL,   IDE_CD_FLAG_SANYO_3CD          },
+       { "CD-ROM CDR_C36",          NULL,   IDE_CD_FLAG_SANYO_3CD          },
+       /* Stingray 8X CD-ROM. */
+       { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_CD_FLAG_PRE_ATAPI12},
+       /*
+        * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
+        * mode sense page capabilities size, but older drives break.
+        */
+       { "ATAPI CD ROM DRIVE 50X MAX", NULL,   IDE_CD_FLAG_FULL_CAPS_PAGE  },
+       { "WPI CDS-32X",                NULL,   IDE_CD_FLAG_FULL_CAPS_PAGE  },
+       /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
+       { "",                        "241N", IDE_CD_FLAG_LE_SPEED_FIELDS    },
+       /*
+        * Some drives used by Apple don't advertise audio play
+        * but they do support reading TOC & audio datas.
+        */
+       { "MATSHITADVD-ROM SR-8187", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
+       { "MATSHITADVD-ROM SR-8186", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
+       { "MATSHITADVD-ROM SR-8176", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
+       { "MATSHITADVD-ROM SR-8174", NULL,   IDE_CD_FLAG_PLAY_AUDIO_OK      },
+       { NULL, NULL, 0 }
+};
+
+static unsigned int ide_cd_flags(struct hd_driveid *id)
+{
+       const struct cd_list_entry *cle = ide_cd_quirks_list;
+
+       while (cle->id_model) {
+               if (strcmp(cle->id_model, id->model) == 0 &&
+                   (cle->id_firmware == NULL ||
+                    strstr(id->fw_rev, cle->id_firmware)))
+                       return cle->cd_flags;
+               cle++;
+       }
+
+       return 0;
+}
+
 static
 int ide_cdrom_setup (ide_drive_t *drive)
 {
        struct cdrom_info *cd = drive->driver_data;
        struct cdrom_device_info *cdi = &cd->devinfo;
+       struct hd_driveid *id = drive->id;
        int nslots;
 
        blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn);
@@ -2820,53 +2866,21 @@ int ide_cdrom_setup (ide_drive_t *drive)
 
        drive->special.all      = 0;
 
-       cd->cd_flags |= IDE_CD_FLAG_MEDIA_CHANGED;
+       cd->cd_flags = IDE_CD_FLAG_MEDIA_CHANGED | IDE_CD_FLAG_NO_EJECT |
+                      ide_cd_flags(id);
 
-       if ((drive->id->config & 0x0060) == 0x20)
+       if ((id->config & 0x0060) == 0x20)
                cd->cd_flags |= IDE_CD_FLAG_DRQ_INTERRUPT;
-       cd->cd_flags |= IDE_CD_FLAG_NO_EJECT;
-
-       /* limit transfer size per interrupt. */
-       /* a testament to the nice quality of Samsung drives... */
-       if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-2430") ||
-           !strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-2432"))
-               cd->cd_flags |= IDE_CD_FLAG_LIMIT_NFRAMES;
-       /* the 3231 model does not support the SET_CD_SPEED command */
-       else if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-3231"))
-               cd->cd_flags |= IDE_CD_FLAG_NO_SPEED_SELECT;
-
-       if (strcmp (drive->id->model, "V003S0DS") == 0 &&
-           drive->id->fw_rev[4] == '1' &&
-           drive->id->fw_rev[6] <= '2') {
-               /* Vertos 300.
-                  Some versions of this drive like to talk BCD. */
+
+       if ((cd->cd_flags & IDE_CD_FLAG_VERTOS_300_SSD) &&
+           id->fw_rev[4] == '1' && id->fw_rev[6] <= '2')
                cd->cd_flags |= (IDE_CD_FLAG_TOCTRACKS_AS_BCD |
                                 IDE_CD_FLAG_TOCADDR_AS_BCD);
-       }
-       else if (strcmp (drive->id->model, "V006E0DS") == 0 &&
-           drive->id->fw_rev[4] == '1' &&
-           drive->id->fw_rev[6] <= '2') {
-               /* Vertos 600 ESD. */
+       else if ((cd->cd_flags & IDE_CD_FLAG_VERTOS_600_ESD) &&
+                id->fw_rev[4] == '1' && id->fw_rev[6] <= '2')
                cd->cd_flags |= IDE_CD_FLAG_TOCTRACKS_AS_BCD;
-       }
-       else if (strcmp(drive->id->model, "NEC CD-ROM DRIVE:260") == 0 &&
-                strncmp(drive->id->fw_rev, "1.01", 4) == 0) { /* FIXME */
-               /* Old NEC260 (not R).
-                  This drive was released before the 1.2 version
-                  of the spec. */
-               cd->cd_flags |= (IDE_CD_FLAG_TOCADDR_AS_BCD |
-                                IDE_CD_FLAG_NEC260);
-       }
-       /*
-        * Sanyo 3 CD changer uses a non-standard command for CD changing
-        * (by default standard ATAPI support for CD changers is used).
-        */
-        else if ((strcmp(drive->id->model, "CD-ROM CDR-C3 G") == 0) ||
-                 (strcmp(drive->id->model, "CD-ROM CDR-C3G") == 0) ||
-                 (strcmp(drive->id->model, "CD-ROM CDR_C36") == 0)) {
-                 /* uses CD in slot 0 when value is set to 3 */
-                 cdi->sanyo_slot = 3;
-        }
+       else if (cd->cd_flags & IDE_CD_FLAG_SANYO_3CD)
+               cdi->sanyo_slot = 3;    /* 3 => use CD in slot 0 */
 
        nslots = ide_cdrom_probe_capabilities (drive);
 

diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h
index 34e9291c0a8ed43224d0efd1d82f4d7c8e37336b..fc8d6d626b8d7872e3c8966eef4cb64f8261ff31 100644 (file)
--- a/drivers/ide/ide-cd.h
+++ b/drivers/ide/ide-cd.h
@@ -44,8 +44,8 @@ enum {
        IDE_CD_FLAG_NO_DOORLOCK         = (1 << 1),
        /* Drive cannot eject the disc. */
        IDE_CD_FLAG_NO_EJECT            = (1 << 2),
-       /* Drive is a pre-1.2 NEC 260 drive. */
-       IDE_CD_FLAG_NEC260              = (1 << 3),
+       /* Drive is a pre ATAPI 1.2 drive. */
+       IDE_CD_FLAG_PRE_ATAPI12         = (1 << 3),
        /* TOC addresses are in BCD. */
        IDE_CD_FLAG_TOCADDR_AS_BCD      = (1 << 4),
        /* TOC track numbers are in BCD. */
@@ -65,6 +65,12 @@ enum {
        IDE_CD_FLAG_DOOR_LOCKED         = (1 << 10),
        /* SET_CD_SPEED command is unsupported. */
        IDE_CD_FLAG_NO_SPEED_SELECT     = (1 << 11),
+       IDE_CD_FLAG_VERTOS_300_SSD      = (1 << 12),
+       IDE_CD_FLAG_VERTOS_600_ESD      = (1 << 13),
+       IDE_CD_FLAG_SANYO_3CD           = (1 << 14),
+       IDE_CD_FLAG_FULL_CAPS_PAGE      = (1 << 15),
+       IDE_CD_FLAG_PLAY_AUDIO_OK       = (1 << 16),
+       IDE_CD_FLAG_LE_SPEED_FIELDS     = (1 << 17),
 };
 
 /* Structure of a MSF cdrom address. */