18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci#include <linux/kernel.h> 38c2ecf20Sopenharmony_ci#include <linux/mm.h> 48c2ecf20Sopenharmony_ci#include <linux/fs.h> 58c2ecf20Sopenharmony_ci#include <linux/errno.h> 68c2ecf20Sopenharmony_ci#include <linux/string.h> 78c2ecf20Sopenharmony_ci#include <linux/blkdev.h> 88c2ecf20Sopenharmony_ci#include <linux/module.h> 98c2ecf20Sopenharmony_ci#include <linux/blkpg.h> 108c2ecf20Sopenharmony_ci#include <linux/cdrom.h> 118c2ecf20Sopenharmony_ci#include <linux/delay.h> 128c2ecf20Sopenharmony_ci#include <linux/slab.h> 138c2ecf20Sopenharmony_ci#include <asm/io.h> 148c2ecf20Sopenharmony_ci#include <linux/uaccess.h> 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci#include <scsi/scsi.h> 178c2ecf20Sopenharmony_ci#include <scsi/scsi_dbg.h> 188c2ecf20Sopenharmony_ci#include <scsi/scsi_device.h> 198c2ecf20Sopenharmony_ci#include <scsi/scsi_eh.h> 208c2ecf20Sopenharmony_ci#include <scsi/scsi_host.h> 218c2ecf20Sopenharmony_ci#include <scsi/scsi_ioctl.h> 228c2ecf20Sopenharmony_ci#include <scsi/scsi_cmnd.h> 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ci#include "sr.h" 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ci#if 0 278c2ecf20Sopenharmony_ci#define DEBUG 288c2ecf20Sopenharmony_ci#endif 298c2ecf20Sopenharmony_ci 308c2ecf20Sopenharmony_ci/* The sr_is_xa() seems to trigger firmware bugs with some drives :-( 318c2ecf20Sopenharmony_ci * It is off by default and can be turned on with this module parameter */ 328c2ecf20Sopenharmony_cistatic int xa_test = 0; 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_cimodule_param(xa_test, int, S_IRUGO | S_IWUSR); 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci/* primitive to determine whether we need to have GFP_DMA set based on 378c2ecf20Sopenharmony_ci * the status of the unchecked_isa_dma flag in the host structure */ 388c2ecf20Sopenharmony_ci#define SR_GFP_DMA(cd) (((cd)->device->host->unchecked_isa_dma) ? GFP_DMA : 0) 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_cistatic int sr_read_tochdr(struct cdrom_device_info *cdi, 418c2ecf20Sopenharmony_ci struct cdrom_tochdr *tochdr) 428c2ecf20Sopenharmony_ci{ 438c2ecf20Sopenharmony_ci struct scsi_cd *cd = cdi->handle; 448c2ecf20Sopenharmony_ci struct packet_command cgc; 458c2ecf20Sopenharmony_ci int result; 468c2ecf20Sopenharmony_ci unsigned char *buffer; 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); 498c2ecf20Sopenharmony_ci if (!buffer) 508c2ecf20Sopenharmony_ci return -ENOMEM; 518c2ecf20Sopenharmony_ci 528c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 538c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 548c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; 558c2ecf20Sopenharmony_ci cgc.cmd[8] = 12; /* LSB of length */ 568c2ecf20Sopenharmony_ci cgc.buffer = buffer; 578c2ecf20Sopenharmony_ci cgc.buflen = 12; 588c2ecf20Sopenharmony_ci cgc.quiet = 1; 598c2ecf20Sopenharmony_ci cgc.data_direction = DMA_FROM_DEVICE; 608c2ecf20Sopenharmony_ci 618c2ecf20Sopenharmony_ci result = sr_do_ioctl(cd, &cgc); 628c2ecf20Sopenharmony_ci 638c2ecf20Sopenharmony_ci tochdr->cdth_trk0 = buffer[2]; 648c2ecf20Sopenharmony_ci tochdr->cdth_trk1 = buffer[3]; 658c2ecf20Sopenharmony_ci 668c2ecf20Sopenharmony_ci kfree(buffer); 678c2ecf20Sopenharmony_ci return result; 688c2ecf20Sopenharmony_ci} 698c2ecf20Sopenharmony_ci 708c2ecf20Sopenharmony_cistatic int sr_read_tocentry(struct cdrom_device_info *cdi, 718c2ecf20Sopenharmony_ci struct cdrom_tocentry *tocentry) 728c2ecf20Sopenharmony_ci{ 738c2ecf20Sopenharmony_ci struct scsi_cd *cd = cdi->handle; 748c2ecf20Sopenharmony_ci struct packet_command cgc; 758c2ecf20Sopenharmony_ci int result; 768c2ecf20Sopenharmony_ci unsigned char *buffer; 778c2ecf20Sopenharmony_ci 788c2ecf20Sopenharmony_ci buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); 798c2ecf20Sopenharmony_ci if (!buffer) 808c2ecf20Sopenharmony_ci return -ENOMEM; 818c2ecf20Sopenharmony_ci 828c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 838c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 848c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; 858c2ecf20Sopenharmony_ci cgc.cmd[1] |= (tocentry->cdte_format == CDROM_MSF) ? 0x02 : 0; 868c2ecf20Sopenharmony_ci cgc.cmd[6] = tocentry->cdte_track; 878c2ecf20Sopenharmony_ci cgc.cmd[8] = 12; /* LSB of length */ 888c2ecf20Sopenharmony_ci cgc.buffer = buffer; 898c2ecf20Sopenharmony_ci cgc.buflen = 12; 908c2ecf20Sopenharmony_ci cgc.data_direction = DMA_FROM_DEVICE; 918c2ecf20Sopenharmony_ci 928c2ecf20Sopenharmony_ci result = sr_do_ioctl(cd, &cgc); 938c2ecf20Sopenharmony_ci 948c2ecf20Sopenharmony_ci tocentry->cdte_ctrl = buffer[5] & 0xf; 958c2ecf20Sopenharmony_ci tocentry->cdte_adr = buffer[5] >> 4; 968c2ecf20Sopenharmony_ci tocentry->cdte_datamode = (tocentry->cdte_ctrl & 0x04) ? 1 : 0; 978c2ecf20Sopenharmony_ci if (tocentry->cdte_format == CDROM_MSF) { 988c2ecf20Sopenharmony_ci tocentry->cdte_addr.msf.minute = buffer[9]; 998c2ecf20Sopenharmony_ci tocentry->cdte_addr.msf.second = buffer[10]; 1008c2ecf20Sopenharmony_ci tocentry->cdte_addr.msf.frame = buffer[11]; 1018c2ecf20Sopenharmony_ci } else 1028c2ecf20Sopenharmony_ci tocentry->cdte_addr.lba = (((((buffer[8] << 8) + buffer[9]) << 8) 1038c2ecf20Sopenharmony_ci + buffer[10]) << 8) + buffer[11]; 1048c2ecf20Sopenharmony_ci 1058c2ecf20Sopenharmony_ci kfree(buffer); 1068c2ecf20Sopenharmony_ci return result; 1078c2ecf20Sopenharmony_ci} 1088c2ecf20Sopenharmony_ci 1098c2ecf20Sopenharmony_ci#define IOCTL_RETRIES 3 1108c2ecf20Sopenharmony_ci 1118c2ecf20Sopenharmony_ci/* ATAPI drives don't have a SCMD_PLAYAUDIO_TI command. When these drives 1128c2ecf20Sopenharmony_ci are emulating a SCSI device via the idescsi module, they need to have 1138c2ecf20Sopenharmony_ci CDROMPLAYTRKIND commands translated into CDROMPLAYMSF commands for them */ 1148c2ecf20Sopenharmony_ci 1158c2ecf20Sopenharmony_cistatic int sr_fake_playtrkind(struct cdrom_device_info *cdi, struct cdrom_ti *ti) 1168c2ecf20Sopenharmony_ci{ 1178c2ecf20Sopenharmony_ci struct cdrom_tocentry trk0_te, trk1_te; 1188c2ecf20Sopenharmony_ci struct cdrom_tochdr tochdr; 1198c2ecf20Sopenharmony_ci struct packet_command cgc; 1208c2ecf20Sopenharmony_ci int ntracks, ret; 1218c2ecf20Sopenharmony_ci 1228c2ecf20Sopenharmony_ci ret = sr_read_tochdr(cdi, &tochdr); 1238c2ecf20Sopenharmony_ci if (ret) 1248c2ecf20Sopenharmony_ci return ret; 1258c2ecf20Sopenharmony_ci 1268c2ecf20Sopenharmony_ci ntracks = tochdr.cdth_trk1 - tochdr.cdth_trk0 + 1; 1278c2ecf20Sopenharmony_ci 1288c2ecf20Sopenharmony_ci if (ti->cdti_trk1 == ntracks) 1298c2ecf20Sopenharmony_ci ti->cdti_trk1 = CDROM_LEADOUT; 1308c2ecf20Sopenharmony_ci else if (ti->cdti_trk1 != CDROM_LEADOUT) 1318c2ecf20Sopenharmony_ci ti->cdti_trk1 ++; 1328c2ecf20Sopenharmony_ci 1338c2ecf20Sopenharmony_ci trk0_te.cdte_track = ti->cdti_trk0; 1348c2ecf20Sopenharmony_ci trk0_te.cdte_format = CDROM_MSF; 1358c2ecf20Sopenharmony_ci trk1_te.cdte_track = ti->cdti_trk1; 1368c2ecf20Sopenharmony_ci trk1_te.cdte_format = CDROM_MSF; 1378c2ecf20Sopenharmony_ci 1388c2ecf20Sopenharmony_ci ret = sr_read_tocentry(cdi, &trk0_te); 1398c2ecf20Sopenharmony_ci if (ret) 1408c2ecf20Sopenharmony_ci return ret; 1418c2ecf20Sopenharmony_ci ret = sr_read_tocentry(cdi, &trk1_te); 1428c2ecf20Sopenharmony_ci if (ret) 1438c2ecf20Sopenharmony_ci return ret; 1448c2ecf20Sopenharmony_ci 1458c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 1468c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_PLAY_AUDIO_MSF; 1478c2ecf20Sopenharmony_ci cgc.cmd[3] = trk0_te.cdte_addr.msf.minute; 1488c2ecf20Sopenharmony_ci cgc.cmd[4] = trk0_te.cdte_addr.msf.second; 1498c2ecf20Sopenharmony_ci cgc.cmd[5] = trk0_te.cdte_addr.msf.frame; 1508c2ecf20Sopenharmony_ci cgc.cmd[6] = trk1_te.cdte_addr.msf.minute; 1518c2ecf20Sopenharmony_ci cgc.cmd[7] = trk1_te.cdte_addr.msf.second; 1528c2ecf20Sopenharmony_ci cgc.cmd[8] = trk1_te.cdte_addr.msf.frame; 1538c2ecf20Sopenharmony_ci cgc.data_direction = DMA_NONE; 1548c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 1558c2ecf20Sopenharmony_ci return sr_do_ioctl(cdi->handle, &cgc); 1568c2ecf20Sopenharmony_ci} 1578c2ecf20Sopenharmony_ci 1588c2ecf20Sopenharmony_cistatic int sr_play_trkind(struct cdrom_device_info *cdi, 1598c2ecf20Sopenharmony_ci struct cdrom_ti *ti) 1608c2ecf20Sopenharmony_ci 1618c2ecf20Sopenharmony_ci{ 1628c2ecf20Sopenharmony_ci struct scsi_cd *cd = cdi->handle; 1638c2ecf20Sopenharmony_ci struct packet_command cgc; 1648c2ecf20Sopenharmony_ci int result; 1658c2ecf20Sopenharmony_ci 1668c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 1678c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 1688c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_PLAYAUDIO_TI; 1698c2ecf20Sopenharmony_ci cgc.cmd[4] = ti->cdti_trk0; 1708c2ecf20Sopenharmony_ci cgc.cmd[5] = ti->cdti_ind0; 1718c2ecf20Sopenharmony_ci cgc.cmd[7] = ti->cdti_trk1; 1728c2ecf20Sopenharmony_ci cgc.cmd[8] = ti->cdti_ind1; 1738c2ecf20Sopenharmony_ci cgc.data_direction = DMA_NONE; 1748c2ecf20Sopenharmony_ci 1758c2ecf20Sopenharmony_ci result = sr_do_ioctl(cd, &cgc); 1768c2ecf20Sopenharmony_ci if (result == -EDRIVE_CANT_DO_THIS) 1778c2ecf20Sopenharmony_ci result = sr_fake_playtrkind(cdi, ti); 1788c2ecf20Sopenharmony_ci 1798c2ecf20Sopenharmony_ci return result; 1808c2ecf20Sopenharmony_ci} 1818c2ecf20Sopenharmony_ci 1828c2ecf20Sopenharmony_ci/* We do our own retries because we want to know what the specific 1838c2ecf20Sopenharmony_ci error code is. Normally the UNIT_ATTENTION code will automatically 1848c2ecf20Sopenharmony_ci clear after one error */ 1858c2ecf20Sopenharmony_ci 1868c2ecf20Sopenharmony_ciint sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) 1878c2ecf20Sopenharmony_ci{ 1888c2ecf20Sopenharmony_ci struct scsi_device *SDev; 1898c2ecf20Sopenharmony_ci struct scsi_sense_hdr local_sshdr, *sshdr = &local_sshdr; 1908c2ecf20Sopenharmony_ci int result, err = 0, retries = 0; 1918c2ecf20Sopenharmony_ci 1928c2ecf20Sopenharmony_ci SDev = cd->device; 1938c2ecf20Sopenharmony_ci 1948c2ecf20Sopenharmony_ci if (cgc->sshdr) 1958c2ecf20Sopenharmony_ci sshdr = cgc->sshdr; 1968c2ecf20Sopenharmony_ci 1978c2ecf20Sopenharmony_ci retry: 1988c2ecf20Sopenharmony_ci if (!scsi_block_when_processing_errors(SDev)) { 1998c2ecf20Sopenharmony_ci err = -ENODEV; 2008c2ecf20Sopenharmony_ci goto out; 2018c2ecf20Sopenharmony_ci } 2028c2ecf20Sopenharmony_ci 2038c2ecf20Sopenharmony_ci result = scsi_execute(SDev, cgc->cmd, cgc->data_direction, 2048c2ecf20Sopenharmony_ci cgc->buffer, cgc->buflen, NULL, sshdr, 2058c2ecf20Sopenharmony_ci cgc->timeout, IOCTL_RETRIES, 0, 0, NULL); 2068c2ecf20Sopenharmony_ci 2078c2ecf20Sopenharmony_ci /* Minimal error checking. Ignore cases we know about, and report the rest. */ 2088c2ecf20Sopenharmony_ci if (driver_byte(result) != 0) { 2098c2ecf20Sopenharmony_ci switch (sshdr->sense_key) { 2108c2ecf20Sopenharmony_ci case UNIT_ATTENTION: 2118c2ecf20Sopenharmony_ci SDev->changed = 1; 2128c2ecf20Sopenharmony_ci if (!cgc->quiet) 2138c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, 2148c2ecf20Sopenharmony_ci "disc change detected.\n"); 2158c2ecf20Sopenharmony_ci if (retries++ < 10) 2168c2ecf20Sopenharmony_ci goto retry; 2178c2ecf20Sopenharmony_ci err = -ENOMEDIUM; 2188c2ecf20Sopenharmony_ci break; 2198c2ecf20Sopenharmony_ci case NOT_READY: /* This happens if there is no disc in drive */ 2208c2ecf20Sopenharmony_ci if (sshdr->asc == 0x04 && 2218c2ecf20Sopenharmony_ci sshdr->ascq == 0x01) { 2228c2ecf20Sopenharmony_ci /* sense: Logical unit is in process of becoming ready */ 2238c2ecf20Sopenharmony_ci if (!cgc->quiet) 2248c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, 2258c2ecf20Sopenharmony_ci "CDROM not ready yet.\n"); 2268c2ecf20Sopenharmony_ci if (retries++ < 10) { 2278c2ecf20Sopenharmony_ci /* sleep 2 sec and try again */ 2288c2ecf20Sopenharmony_ci ssleep(2); 2298c2ecf20Sopenharmony_ci goto retry; 2308c2ecf20Sopenharmony_ci } else { 2318c2ecf20Sopenharmony_ci /* 20 secs are enough? */ 2328c2ecf20Sopenharmony_ci err = -ENOMEDIUM; 2338c2ecf20Sopenharmony_ci break; 2348c2ecf20Sopenharmony_ci } 2358c2ecf20Sopenharmony_ci } 2368c2ecf20Sopenharmony_ci if (!cgc->quiet) 2378c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, 2388c2ecf20Sopenharmony_ci "CDROM not ready. Make sure there " 2398c2ecf20Sopenharmony_ci "is a disc in the drive.\n"); 2408c2ecf20Sopenharmony_ci err = -ENOMEDIUM; 2418c2ecf20Sopenharmony_ci break; 2428c2ecf20Sopenharmony_ci case ILLEGAL_REQUEST: 2438c2ecf20Sopenharmony_ci err = -EIO; 2448c2ecf20Sopenharmony_ci if (sshdr->asc == 0x20 && 2458c2ecf20Sopenharmony_ci sshdr->ascq == 0x00) 2468c2ecf20Sopenharmony_ci /* sense: Invalid command operation code */ 2478c2ecf20Sopenharmony_ci err = -EDRIVE_CANT_DO_THIS; 2488c2ecf20Sopenharmony_ci break; 2498c2ecf20Sopenharmony_ci default: 2508c2ecf20Sopenharmony_ci err = -EIO; 2518c2ecf20Sopenharmony_ci } 2528c2ecf20Sopenharmony_ci } 2538c2ecf20Sopenharmony_ci 2548c2ecf20Sopenharmony_ci /* Wake up a process waiting for device */ 2558c2ecf20Sopenharmony_ci out: 2568c2ecf20Sopenharmony_ci cgc->stat = err; 2578c2ecf20Sopenharmony_ci return err; 2588c2ecf20Sopenharmony_ci} 2598c2ecf20Sopenharmony_ci 2608c2ecf20Sopenharmony_ci/* ---------------------------------------------------------------------- */ 2618c2ecf20Sopenharmony_ci/* interface to cdrom.c */ 2628c2ecf20Sopenharmony_ci 2638c2ecf20Sopenharmony_ciint sr_tray_move(struct cdrom_device_info *cdi, int pos) 2648c2ecf20Sopenharmony_ci{ 2658c2ecf20Sopenharmony_ci Scsi_CD *cd = cdi->handle; 2668c2ecf20Sopenharmony_ci struct packet_command cgc; 2678c2ecf20Sopenharmony_ci 2688c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 2698c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_START_STOP_UNIT; 2708c2ecf20Sopenharmony_ci cgc.cmd[4] = (pos == 0) ? 0x03 /* close */ : 0x02 /* eject */ ; 2718c2ecf20Sopenharmony_ci cgc.data_direction = DMA_NONE; 2728c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 2738c2ecf20Sopenharmony_ci return sr_do_ioctl(cd, &cgc); 2748c2ecf20Sopenharmony_ci} 2758c2ecf20Sopenharmony_ci 2768c2ecf20Sopenharmony_ciint sr_lock_door(struct cdrom_device_info *cdi, int lock) 2778c2ecf20Sopenharmony_ci{ 2788c2ecf20Sopenharmony_ci Scsi_CD *cd = cdi->handle; 2798c2ecf20Sopenharmony_ci 2808c2ecf20Sopenharmony_ci return scsi_set_medium_removal(cd->device, lock ? 2818c2ecf20Sopenharmony_ci SCSI_REMOVAL_PREVENT : SCSI_REMOVAL_ALLOW); 2828c2ecf20Sopenharmony_ci} 2838c2ecf20Sopenharmony_ci 2848c2ecf20Sopenharmony_ciint sr_drive_status(struct cdrom_device_info *cdi, int slot) 2858c2ecf20Sopenharmony_ci{ 2868c2ecf20Sopenharmony_ci struct scsi_cd *cd = cdi->handle; 2878c2ecf20Sopenharmony_ci struct scsi_sense_hdr sshdr; 2888c2ecf20Sopenharmony_ci struct media_event_desc med; 2898c2ecf20Sopenharmony_ci 2908c2ecf20Sopenharmony_ci if (CDSL_CURRENT != slot) { 2918c2ecf20Sopenharmony_ci /* we have no changer support */ 2928c2ecf20Sopenharmony_ci return -EINVAL; 2938c2ecf20Sopenharmony_ci } 2948c2ecf20Sopenharmony_ci if (!scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr)) 2958c2ecf20Sopenharmony_ci return CDS_DISC_OK; 2968c2ecf20Sopenharmony_ci 2978c2ecf20Sopenharmony_ci /* SK/ASC/ASCQ of 2/4/1 means "unit is becoming ready" */ 2988c2ecf20Sopenharmony_ci if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY 2998c2ecf20Sopenharmony_ci && sshdr.asc == 0x04 && sshdr.ascq == 0x01) 3008c2ecf20Sopenharmony_ci return CDS_DRIVE_NOT_READY; 3018c2ecf20Sopenharmony_ci 3028c2ecf20Sopenharmony_ci if (!cdrom_get_media_event(cdi, &med)) { 3038c2ecf20Sopenharmony_ci if (med.media_present) 3048c2ecf20Sopenharmony_ci return CDS_DISC_OK; 3058c2ecf20Sopenharmony_ci else if (med.door_open) 3068c2ecf20Sopenharmony_ci return CDS_TRAY_OPEN; 3078c2ecf20Sopenharmony_ci else 3088c2ecf20Sopenharmony_ci return CDS_NO_DISC; 3098c2ecf20Sopenharmony_ci } 3108c2ecf20Sopenharmony_ci 3118c2ecf20Sopenharmony_ci /* 3128c2ecf20Sopenharmony_ci * SK/ASC/ASCQ of 2/4/2 means "initialization required" 3138c2ecf20Sopenharmony_ci * Using CD_TRAY_OPEN results in an START_STOP_UNIT to close 3148c2ecf20Sopenharmony_ci * the tray, which resolves the initialization requirement. 3158c2ecf20Sopenharmony_ci */ 3168c2ecf20Sopenharmony_ci if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY 3178c2ecf20Sopenharmony_ci && sshdr.asc == 0x04 && sshdr.ascq == 0x02) 3188c2ecf20Sopenharmony_ci return CDS_TRAY_OPEN; 3198c2ecf20Sopenharmony_ci 3208c2ecf20Sopenharmony_ci /* 3218c2ecf20Sopenharmony_ci * 0x04 is format in progress .. but there must be a disc present! 3228c2ecf20Sopenharmony_ci */ 3238c2ecf20Sopenharmony_ci if (sshdr.sense_key == NOT_READY && sshdr.asc == 0x04) 3248c2ecf20Sopenharmony_ci return CDS_DISC_OK; 3258c2ecf20Sopenharmony_ci 3268c2ecf20Sopenharmony_ci /* 3278c2ecf20Sopenharmony_ci * If not using Mt Fuji extended media tray reports, 3288c2ecf20Sopenharmony_ci * just return TRAY_OPEN since ATAPI doesn't provide 3298c2ecf20Sopenharmony_ci * any other way to detect this... 3308c2ecf20Sopenharmony_ci */ 3318c2ecf20Sopenharmony_ci if (scsi_sense_valid(&sshdr) && 3328c2ecf20Sopenharmony_ci /* 0x3a is medium not present */ 3338c2ecf20Sopenharmony_ci sshdr.asc == 0x3a) 3348c2ecf20Sopenharmony_ci return CDS_NO_DISC; 3358c2ecf20Sopenharmony_ci else 3368c2ecf20Sopenharmony_ci return CDS_TRAY_OPEN; 3378c2ecf20Sopenharmony_ci 3388c2ecf20Sopenharmony_ci return CDS_DRIVE_NOT_READY; 3398c2ecf20Sopenharmony_ci} 3408c2ecf20Sopenharmony_ci 3418c2ecf20Sopenharmony_ciint sr_disk_status(struct cdrom_device_info *cdi) 3428c2ecf20Sopenharmony_ci{ 3438c2ecf20Sopenharmony_ci Scsi_CD *cd = cdi->handle; 3448c2ecf20Sopenharmony_ci struct cdrom_tochdr toc_h; 3458c2ecf20Sopenharmony_ci struct cdrom_tocentry toc_e; 3468c2ecf20Sopenharmony_ci int i, rc, have_datatracks = 0; 3478c2ecf20Sopenharmony_ci 3488c2ecf20Sopenharmony_ci /* look for data tracks */ 3498c2ecf20Sopenharmony_ci rc = sr_read_tochdr(cdi, &toc_h); 3508c2ecf20Sopenharmony_ci if (rc) 3518c2ecf20Sopenharmony_ci return (rc == -ENOMEDIUM) ? CDS_NO_DISC : CDS_NO_INFO; 3528c2ecf20Sopenharmony_ci 3538c2ecf20Sopenharmony_ci for (i = toc_h.cdth_trk0; i <= toc_h.cdth_trk1; i++) { 3548c2ecf20Sopenharmony_ci toc_e.cdte_track = i; 3558c2ecf20Sopenharmony_ci toc_e.cdte_format = CDROM_LBA; 3568c2ecf20Sopenharmony_ci if (sr_read_tocentry(cdi, &toc_e)) 3578c2ecf20Sopenharmony_ci return CDS_NO_INFO; 3588c2ecf20Sopenharmony_ci if (toc_e.cdte_ctrl & CDROM_DATA_TRACK) { 3598c2ecf20Sopenharmony_ci have_datatracks = 1; 3608c2ecf20Sopenharmony_ci break; 3618c2ecf20Sopenharmony_ci } 3628c2ecf20Sopenharmony_ci } 3638c2ecf20Sopenharmony_ci if (!have_datatracks) 3648c2ecf20Sopenharmony_ci return CDS_AUDIO; 3658c2ecf20Sopenharmony_ci 3668c2ecf20Sopenharmony_ci if (cd->xa_flag) 3678c2ecf20Sopenharmony_ci return CDS_XA_2_1; 3688c2ecf20Sopenharmony_ci else 3698c2ecf20Sopenharmony_ci return CDS_DATA_1; 3708c2ecf20Sopenharmony_ci} 3718c2ecf20Sopenharmony_ci 3728c2ecf20Sopenharmony_ciint sr_get_last_session(struct cdrom_device_info *cdi, 3738c2ecf20Sopenharmony_ci struct cdrom_multisession *ms_info) 3748c2ecf20Sopenharmony_ci{ 3758c2ecf20Sopenharmony_ci Scsi_CD *cd = cdi->handle; 3768c2ecf20Sopenharmony_ci 3778c2ecf20Sopenharmony_ci ms_info->addr.lba = cd->ms_offset; 3788c2ecf20Sopenharmony_ci ms_info->xa_flag = cd->xa_flag || cd->ms_offset > 0; 3798c2ecf20Sopenharmony_ci 3808c2ecf20Sopenharmony_ci return 0; 3818c2ecf20Sopenharmony_ci} 3828c2ecf20Sopenharmony_ci 3838c2ecf20Sopenharmony_ciint sr_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn) 3848c2ecf20Sopenharmony_ci{ 3858c2ecf20Sopenharmony_ci Scsi_CD *cd = cdi->handle; 3868c2ecf20Sopenharmony_ci struct packet_command cgc; 3878c2ecf20Sopenharmony_ci char *buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); 3888c2ecf20Sopenharmony_ci int result; 3898c2ecf20Sopenharmony_ci 3908c2ecf20Sopenharmony_ci if (!buffer) 3918c2ecf20Sopenharmony_ci return -ENOMEM; 3928c2ecf20Sopenharmony_ci 3938c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 3948c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_READ_SUBCHANNEL; 3958c2ecf20Sopenharmony_ci cgc.cmd[2] = 0x40; /* I do want the subchannel info */ 3968c2ecf20Sopenharmony_ci cgc.cmd[3] = 0x02; /* Give me medium catalog number info */ 3978c2ecf20Sopenharmony_ci cgc.cmd[8] = 24; 3988c2ecf20Sopenharmony_ci cgc.buffer = buffer; 3998c2ecf20Sopenharmony_ci cgc.buflen = 24; 4008c2ecf20Sopenharmony_ci cgc.data_direction = DMA_FROM_DEVICE; 4018c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 4028c2ecf20Sopenharmony_ci result = sr_do_ioctl(cd, &cgc); 4038c2ecf20Sopenharmony_ci 4048c2ecf20Sopenharmony_ci memcpy(mcn->medium_catalog_number, buffer + 9, 13); 4058c2ecf20Sopenharmony_ci mcn->medium_catalog_number[13] = 0; 4068c2ecf20Sopenharmony_ci 4078c2ecf20Sopenharmony_ci kfree(buffer); 4088c2ecf20Sopenharmony_ci return result; 4098c2ecf20Sopenharmony_ci} 4108c2ecf20Sopenharmony_ci 4118c2ecf20Sopenharmony_ciint sr_reset(struct cdrom_device_info *cdi) 4128c2ecf20Sopenharmony_ci{ 4138c2ecf20Sopenharmony_ci return 0; 4148c2ecf20Sopenharmony_ci} 4158c2ecf20Sopenharmony_ci 4168c2ecf20Sopenharmony_ciint sr_select_speed(struct cdrom_device_info *cdi, int speed) 4178c2ecf20Sopenharmony_ci{ 4188c2ecf20Sopenharmony_ci Scsi_CD *cd = cdi->handle; 4198c2ecf20Sopenharmony_ci struct packet_command cgc; 4208c2ecf20Sopenharmony_ci 4218c2ecf20Sopenharmony_ci if (speed == 0) 4228c2ecf20Sopenharmony_ci speed = 0xffff; /* set to max */ 4238c2ecf20Sopenharmony_ci else 4248c2ecf20Sopenharmony_ci speed *= 177; /* Nx to kbyte/s */ 4258c2ecf20Sopenharmony_ci 4268c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 4278c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_SET_SPEED; /* SET CD SPEED */ 4288c2ecf20Sopenharmony_ci cgc.cmd[2] = (speed >> 8) & 0xff; /* MSB for speed (in kbytes/sec) */ 4298c2ecf20Sopenharmony_ci cgc.cmd[3] = speed & 0xff; /* LSB */ 4308c2ecf20Sopenharmony_ci cgc.data_direction = DMA_NONE; 4318c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 4328c2ecf20Sopenharmony_ci 4338c2ecf20Sopenharmony_ci if (sr_do_ioctl(cd, &cgc)) 4348c2ecf20Sopenharmony_ci return -EIO; 4358c2ecf20Sopenharmony_ci return 0; 4368c2ecf20Sopenharmony_ci} 4378c2ecf20Sopenharmony_ci 4388c2ecf20Sopenharmony_ci/* ----------------------------------------------------------------------- */ 4398c2ecf20Sopenharmony_ci/* this is called by the generic cdrom driver. arg is a _kernel_ pointer, */ 4408c2ecf20Sopenharmony_ci/* because the generic cdrom driver does the user access stuff for us. */ 4418c2ecf20Sopenharmony_ci/* only cdromreadtochdr and cdromreadtocentry are left - for use with the */ 4428c2ecf20Sopenharmony_ci/* sr_disk_status interface for the generic cdrom driver. */ 4438c2ecf20Sopenharmony_ci 4448c2ecf20Sopenharmony_ciint sr_audio_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, void *arg) 4458c2ecf20Sopenharmony_ci{ 4468c2ecf20Sopenharmony_ci switch (cmd) { 4478c2ecf20Sopenharmony_ci case CDROMREADTOCHDR: 4488c2ecf20Sopenharmony_ci return sr_read_tochdr(cdi, arg); 4498c2ecf20Sopenharmony_ci case CDROMREADTOCENTRY: 4508c2ecf20Sopenharmony_ci return sr_read_tocentry(cdi, arg); 4518c2ecf20Sopenharmony_ci case CDROMPLAYTRKIND: 4528c2ecf20Sopenharmony_ci return sr_play_trkind(cdi, arg); 4538c2ecf20Sopenharmony_ci default: 4548c2ecf20Sopenharmony_ci return -EINVAL; 4558c2ecf20Sopenharmony_ci } 4568c2ecf20Sopenharmony_ci} 4578c2ecf20Sopenharmony_ci 4588c2ecf20Sopenharmony_ci/* ----------------------------------------------------------------------- 4598c2ecf20Sopenharmony_ci * a function to read all sorts of funny cdrom sectors using the READ_CD 4608c2ecf20Sopenharmony_ci * scsi-3 mmc command 4618c2ecf20Sopenharmony_ci * 4628c2ecf20Sopenharmony_ci * lba: linear block address 4638c2ecf20Sopenharmony_ci * format: 0 = data (anything) 4648c2ecf20Sopenharmony_ci * 1 = audio 4658c2ecf20Sopenharmony_ci * 2 = data (mode 1) 4668c2ecf20Sopenharmony_ci * 3 = data (mode 2) 4678c2ecf20Sopenharmony_ci * 4 = data (mode 2 form1) 4688c2ecf20Sopenharmony_ci * 5 = data (mode 2 form2) 4698c2ecf20Sopenharmony_ci * blksize: 2048 | 2336 | 2340 | 2352 4708c2ecf20Sopenharmony_ci */ 4718c2ecf20Sopenharmony_ci 4728c2ecf20Sopenharmony_cistatic int sr_read_cd(Scsi_CD *cd, unsigned char *dest, int lba, int format, int blksize) 4738c2ecf20Sopenharmony_ci{ 4748c2ecf20Sopenharmony_ci struct packet_command cgc; 4758c2ecf20Sopenharmony_ci 4768c2ecf20Sopenharmony_ci#ifdef DEBUG 4778c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, "sr_read_cd lba=%d format=%d blksize=%d\n", 4788c2ecf20Sopenharmony_ci lba, format, blksize); 4798c2ecf20Sopenharmony_ci#endif 4808c2ecf20Sopenharmony_ci 4818c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 4828c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_READ_CD; /* READ_CD */ 4838c2ecf20Sopenharmony_ci cgc.cmd[1] = ((format & 7) << 2); 4848c2ecf20Sopenharmony_ci cgc.cmd[2] = (unsigned char) (lba >> 24) & 0xff; 4858c2ecf20Sopenharmony_ci cgc.cmd[3] = (unsigned char) (lba >> 16) & 0xff; 4868c2ecf20Sopenharmony_ci cgc.cmd[4] = (unsigned char) (lba >> 8) & 0xff; 4878c2ecf20Sopenharmony_ci cgc.cmd[5] = (unsigned char) lba & 0xff; 4888c2ecf20Sopenharmony_ci cgc.cmd[8] = 1; 4898c2ecf20Sopenharmony_ci switch (blksize) { 4908c2ecf20Sopenharmony_ci case 2336: 4918c2ecf20Sopenharmony_ci cgc.cmd[9] = 0x58; 4928c2ecf20Sopenharmony_ci break; 4938c2ecf20Sopenharmony_ci case 2340: 4948c2ecf20Sopenharmony_ci cgc.cmd[9] = 0x78; 4958c2ecf20Sopenharmony_ci break; 4968c2ecf20Sopenharmony_ci case 2352: 4978c2ecf20Sopenharmony_ci cgc.cmd[9] = 0xf8; 4988c2ecf20Sopenharmony_ci break; 4998c2ecf20Sopenharmony_ci default: 5008c2ecf20Sopenharmony_ci cgc.cmd[9] = 0x10; 5018c2ecf20Sopenharmony_ci break; 5028c2ecf20Sopenharmony_ci } 5038c2ecf20Sopenharmony_ci cgc.buffer = dest; 5048c2ecf20Sopenharmony_ci cgc.buflen = blksize; 5058c2ecf20Sopenharmony_ci cgc.data_direction = DMA_FROM_DEVICE; 5068c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 5078c2ecf20Sopenharmony_ci return sr_do_ioctl(cd, &cgc); 5088c2ecf20Sopenharmony_ci} 5098c2ecf20Sopenharmony_ci 5108c2ecf20Sopenharmony_ci/* 5118c2ecf20Sopenharmony_ci * read sectors with blocksizes other than 2048 5128c2ecf20Sopenharmony_ci */ 5138c2ecf20Sopenharmony_ci 5148c2ecf20Sopenharmony_cistatic int sr_read_sector(Scsi_CD *cd, int lba, int blksize, unsigned char *dest) 5158c2ecf20Sopenharmony_ci{ 5168c2ecf20Sopenharmony_ci struct packet_command cgc; 5178c2ecf20Sopenharmony_ci int rc; 5188c2ecf20Sopenharmony_ci 5198c2ecf20Sopenharmony_ci /* we try the READ CD command first... */ 5208c2ecf20Sopenharmony_ci if (cd->readcd_known) { 5218c2ecf20Sopenharmony_ci rc = sr_read_cd(cd, dest, lba, 0, blksize); 5228c2ecf20Sopenharmony_ci if (-EDRIVE_CANT_DO_THIS != rc) 5238c2ecf20Sopenharmony_ci return rc; 5248c2ecf20Sopenharmony_ci cd->readcd_known = 0; 5258c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, 5268c2ecf20Sopenharmony_ci "CDROM does'nt support READ CD (0xbe) command\n"); 5278c2ecf20Sopenharmony_ci /* fall & retry the other way */ 5288c2ecf20Sopenharmony_ci } 5298c2ecf20Sopenharmony_ci /* ... if this fails, we switch the blocksize using MODE SELECT */ 5308c2ecf20Sopenharmony_ci if (blksize != cd->device->sector_size) { 5318c2ecf20Sopenharmony_ci if (0 != (rc = sr_set_blocklength(cd, blksize))) 5328c2ecf20Sopenharmony_ci return rc; 5338c2ecf20Sopenharmony_ci } 5348c2ecf20Sopenharmony_ci#ifdef DEBUG 5358c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, "sr_read_sector lba=%d blksize=%d\n", 5368c2ecf20Sopenharmony_ci lba, blksize); 5378c2ecf20Sopenharmony_ci#endif 5388c2ecf20Sopenharmony_ci 5398c2ecf20Sopenharmony_ci memset(&cgc, 0, sizeof(struct packet_command)); 5408c2ecf20Sopenharmony_ci cgc.cmd[0] = GPCMD_READ_10; 5418c2ecf20Sopenharmony_ci cgc.cmd[2] = (unsigned char) (lba >> 24) & 0xff; 5428c2ecf20Sopenharmony_ci cgc.cmd[3] = (unsigned char) (lba >> 16) & 0xff; 5438c2ecf20Sopenharmony_ci cgc.cmd[4] = (unsigned char) (lba >> 8) & 0xff; 5448c2ecf20Sopenharmony_ci cgc.cmd[5] = (unsigned char) lba & 0xff; 5458c2ecf20Sopenharmony_ci cgc.cmd[8] = 1; 5468c2ecf20Sopenharmony_ci cgc.buffer = dest; 5478c2ecf20Sopenharmony_ci cgc.buflen = blksize; 5488c2ecf20Sopenharmony_ci cgc.data_direction = DMA_FROM_DEVICE; 5498c2ecf20Sopenharmony_ci cgc.timeout = IOCTL_TIMEOUT; 5508c2ecf20Sopenharmony_ci rc = sr_do_ioctl(cd, &cgc); 5518c2ecf20Sopenharmony_ci 5528c2ecf20Sopenharmony_ci return rc; 5538c2ecf20Sopenharmony_ci} 5548c2ecf20Sopenharmony_ci 5558c2ecf20Sopenharmony_ci/* 5568c2ecf20Sopenharmony_ci * read a sector in raw mode to check the sector format 5578c2ecf20Sopenharmony_ci * ret: 1 == mode2 (XA), 0 == mode1, <0 == error 5588c2ecf20Sopenharmony_ci */ 5598c2ecf20Sopenharmony_ci 5608c2ecf20Sopenharmony_ciint sr_is_xa(Scsi_CD *cd) 5618c2ecf20Sopenharmony_ci{ 5628c2ecf20Sopenharmony_ci unsigned char *raw_sector; 5638c2ecf20Sopenharmony_ci int is_xa; 5648c2ecf20Sopenharmony_ci 5658c2ecf20Sopenharmony_ci if (!xa_test) 5668c2ecf20Sopenharmony_ci return 0; 5678c2ecf20Sopenharmony_ci 5688c2ecf20Sopenharmony_ci raw_sector = kmalloc(2048, GFP_KERNEL | SR_GFP_DMA(cd)); 5698c2ecf20Sopenharmony_ci if (!raw_sector) 5708c2ecf20Sopenharmony_ci return -ENOMEM; 5718c2ecf20Sopenharmony_ci if (0 == sr_read_sector(cd, cd->ms_offset + 16, 5728c2ecf20Sopenharmony_ci CD_FRAMESIZE_RAW1, raw_sector)) { 5738c2ecf20Sopenharmony_ci is_xa = (raw_sector[3] == 0x02) ? 1 : 0; 5748c2ecf20Sopenharmony_ci } else { 5758c2ecf20Sopenharmony_ci /* read a raw sector failed for some reason. */ 5768c2ecf20Sopenharmony_ci is_xa = -1; 5778c2ecf20Sopenharmony_ci } 5788c2ecf20Sopenharmony_ci kfree(raw_sector); 5798c2ecf20Sopenharmony_ci#ifdef DEBUG 5808c2ecf20Sopenharmony_ci sr_printk(KERN_INFO, cd, "sr_is_xa: %d\n", is_xa); 5818c2ecf20Sopenharmony_ci#endif 5828c2ecf20Sopenharmony_ci return is_xa; 5838c2ecf20Sopenharmony_ci} 584