Rockbox open source high quality audio player as a Music Player Daemon
mpris
rockbox
mpd
libadwaita
audio
rust
zig
deno
ata: Use a better default for SET_MULTIPLE_MODE
* If the device returns a valid upper limit (word 47) use that.
* If the current limit (word 59) is valid, use that.
* Fall back to 1 as a default, not 16!
Note this is only used for PIO transfers!
Change-Id: I269b751466242bbcce91ee991d9ade449cc84b6b
+7
-4
+7
-4
firmware/drivers/ata.c
+7
-4
firmware/drivers/ata.c
···
112
112
113
113
static sector_t total_sectors;
114
114
static uint32_t log_sector_size;
115
-
static int multisectors; /* number of supported multisectors */
115
+
static uint8_t multisectors; /* number of supported multisectors */
116
116
117
117
static unsigned short identify_info[ATA_IDENTIFY_WORDS] STORAGE_ALIGN_ATTR;
118
118
···
1097
1097
}
1098
1098
1099
1099
multisectors = identify_info[47] & 0xff;
1100
-
if (multisectors == 0) /* Invalid multisector info, try with 16 */
1101
-
multisectors = 16;
1100
+
if (!multisectors && (identify_info[59] & 0x100) == 0x100)
1101
+
multisectors = identify_info[59] & 0xff;
1102
+
if (!multisectors)
1103
+
multisectors = 1; /* One transfer per REQ */
1102
1104
1103
-
DEBUGF("ata: %d sectors per ata request\n", multisectors);
1105
+
DEBUGF("ata: max %d sectors per DRQ\n", multisectors);
1104
1106
1105
1107
total_sectors = (identify_info[61] << 16) | identify_info[60];
1106
1108
···
1142
1144
ata_state = ATA_ON;
1143
1145
keep_ata_active();
1144
1146
}
1147
+
1145
1148
rc = set_multiple_mode(multisectors);
1146
1149
if (rc)
1147
1150
rc = -100 + rc;