* Ported scsi_cd, too, still untested.

* This should have been part of r26828, although it did not break the build :-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26829 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2008-08-05 21:15:28 +00:00
parent 24593e2c79
commit 65f1e8eceb
3 changed files with 295 additions and 188 deletions
@@ -1,6 +1,7 @@
SubDir HAIKU_TOP src add-ons kernel drivers disk scsi scsi_cd ;
UsePrivateHeaders drivers kernel ;
SubDirHdrs $(HAIKU_TOP) src system kernel device_manager ;
KernelAddon scsi_cd :
scsi_cd.cpp
@@ -7,8 +7,8 @@
/*! Peripheral driver to handle CD-ROM drives. To be more
precisely, it supports CD-ROM and WORM drives (well -
I've never _seen_ a WORM driver).
I've never _seen_ a WORM driver).
Much work is done by scsi_periph and block_io.
*/
@@ -29,49 +29,48 @@
static scsi_periph_interface *sSCSIPeripheral;
static device_manager_info *sDeviceManager;
static block_io_for_driver_interface *sBlockIO;
#define SCSI_CD_STD_TIMEOUT 10
static status_t
update_capacity(cd_device_info *device)
update_capacity(cd_driver_info *info)
{
TRACE("update_capacity()\n");
scsi_ccb *ccb = device->scsi->alloc_ccb(device->scsi_device);
scsi_ccb *ccb = info->scsi->alloc_ccb(info->scsi_device);
if (ccb == NULL)
return B_NO_MEMORY;
status_t status = sSCSIPeripheral->check_capacity(
device->scsi_periph_device, ccb);
info->scsi_periph_device, ccb);
device->scsi->free_ccb(ccb);
info->scsi->free_ccb(ccb);
return status;
}
static status_t
get_geometry(cd_handle_info *handle, device_geometry *geometry)
get_geometry(cd_handle *handle, device_geometry *geometry)
{
cd_device_info *device = handle->device;
cd_driver_info *info = handle->info;
status_t status = update_capacity(device);
status_t status = update_capacity(info);
// it seems that Be expects B_GET_GEOMETRY to always succeed unless
// the medium has been changed; e.g. if we report B_DEV_NO_MEDIA, the
// device is ignored by the CDPlayer and CDBurner
// info is ignored by the CDPlayer and CDBurner
if (status == B_DEV_MEDIA_CHANGED)
return B_DEV_MEDIA_CHANGED;
geometry->bytes_per_sector = device->block_size;
geometry->bytes_per_sector = info->block_size;
geometry->sectors_per_track = 1;
geometry->cylinder_count = device->capacity;
geometry->cylinder_count = info->capacity;
geometry->head_count = 1;
geometry->device_type = device->device_type;
geometry->removable = device->removable;
geometry->device_type = info->device_type;
geometry->removable = info->removable;
// TBD: for all but CD-ROMs, read mode sense - medium type
// (bit 7 of block device specific parameter for Optical Memory Block Device)
@@ -79,7 +78,7 @@ get_geometry(cd_handle_info *handle, device_geometry *geometry)
// (same for write-once block devices)
// (same for optical memory block devices)
geometry->read_only = true;
geometry->write_once = device->device_type == scsi_dev_WORM;
geometry->write_once = info->device_type == scsi_dev_WORM;
TRACE("scsi_disk: get_geometry(): %ld, %ld, %ld, %ld, %d, %d, %d, %d\n",
geometry->bytes_per_sector, geometry->sectors_per_track,
@@ -91,7 +90,7 @@ get_geometry(cd_handle_info *handle, device_geometry *geometry)
static status_t
get_toc(cd_device_info *device, scsi_toc *toc)
get_toc(cd_driver_info *info, scsi_toc *toc)
{
scsi_ccb *ccb;
status_t res;
@@ -101,11 +100,11 @@ get_toc(cd_device_info *device, scsi_toc *toc)
TRACE("get_toc()\n");
ccb = device->scsi->alloc_ccb(device->scsi_device);
ccb = info->scsi->alloc_ccb(info->scsi_device);
if (ccb == NULL)
return B_NO_MEMORY;
// first read number of tracks only
// first read number of tracks only
ccb->flags = SCSI_DIR_IN;
cmd = (scsi_cmd_read_toc *)ccb->cdb;
@@ -126,16 +125,16 @@ get_toc(cd_device_info *device, scsi_toc *toc)
ccb->sg_list = NULL;
ccb->data_length = sizeof(toc->toc_data);
res = sSCSIPeripheral->safe_exec(device->scsi_periph_device, ccb);
res = sSCSIPeripheral->safe_exec(info->scsi_periph_device, ccb);
if (res != B_OK)
goto err;
// then read all track infos
// (little hint: number of tracks is last - first + 1;
// but scsi_toc_toc has already one track, so we get
// (little hint: number of tracks is last - first + 1;
// but scsi_toc_toc has already one track, so we get
// last - first extra tracks; finally, we want the lead-out as
// well, so we add an extra track)
dataLength = (short_response->last - short_response->first + 1)
dataLength = (short_response->last - short_response->first + 1)
* sizeof(scsi_toc_track) + sizeof(scsi_toc_toc);
dataLength = min_c(dataLength, sizeof(toc->toc_data));
@@ -144,35 +143,35 @@ get_toc(cd_device_info *device, scsi_toc *toc)
cmd->allocation_length = B_HOST_TO_BENDIAN_INT16(dataLength);
res = sSCSIPeripheral->safe_exec(device->scsi_periph_device, ccb);
res = sSCSIPeripheral->safe_exec(info->scsi_periph_device, ccb);
err:
device->scsi->free_ccb(ccb);
info->scsi->free_ccb(ccb);
return res;
}
static status_t
load_eject(cd_device_info *device, bool load)
load_eject(cd_driver_info *info, bool load)
{
TRACE("load_eject()\n");
scsi_ccb *ccb = device->scsi->alloc_ccb(device->scsi_device);
scsi_ccb *ccb = info->scsi->alloc_ccb(info->scsi_device);
if (ccb == NULL)
return B_NO_MEMORY;
err_res result = sSCSIPeripheral->send_start_stop(
device->scsi_periph_device, ccb, load, true);
info->scsi_periph_device, ccb, load, true);
device->scsi->free_ccb(ccb);
info->scsi->free_ccb(ccb);
return result.error_code;
}
static status_t
get_position(cd_device_info *device, scsi_position *position)
get_position(cd_driver_info *info, scsi_position *position)
{
scsi_cmd_read_subchannel cmd;
@@ -186,13 +185,13 @@ get_position(cd_device_info *device, scsi_position *position)
cmd.track = 0;
cmd.allocation_length = B_HOST_TO_BENDIAN_INT16(sizeof(scsi_position));
return sSCSIPeripheral->simple_exec(device->scsi_periph_device,
return sSCSIPeripheral->simple_exec(info->scsi_periph_device,
&cmd, sizeof(cmd), position, sizeof(*position), SCSI_DIR_IN);
}
static status_t
get_set_volume(cd_device_info *device, scsi_volume *volume, bool set)
get_set_volume(cd_driver_info *info, scsi_volume *volume, bool set)
{
scsi_cmd_mode_sense_6 cmd;
scsi_mode_param_header_6 header;
@@ -212,7 +211,7 @@ get_set_volume(cd_device_info *device, scsi_volume *volume, bool set)
memset(&header, -2, sizeof(header));
res = sSCSIPeripheral->simple_exec(device->scsi_periph_device, &cmd,
res = sSCSIPeripheral->simple_exec(info->scsi_periph_device, &cmd,
sizeof(cmd), &header, sizeof(header), SCSI_DIR_IN);
if (res != B_OK)
return res;
@@ -235,14 +234,14 @@ get_set_volume(cd_device_info *device, scsi_volume *volume, bool set)
cmd.allocation_length = len;
res = sSCSIPeripheral->simple_exec(device->scsi_periph_device, &cmd,
res = sSCSIPeripheral->simple_exec(info->scsi_periph_device, &cmd,
sizeof(cmd), buffer, len, SCSI_DIR_IN);
if (res != B_OK) {
free(buffer);
return res;
}
TRACE(" mode_data_len=%d, block_desc_len=%d",
TRACE(" mode_data_len=%d, block_desc_len=%d",
((scsi_mode_param_header_6 *)buffer)->mode_data_length,
((scsi_mode_param_header_6 *)buffer)->block_desc_length);
@@ -295,7 +294,7 @@ get_set_volume(cd_device_info *device, scsi_volume *volume, bool set)
cmd.param_list_length = sizeof(header) + header.block_desc_length
+ sizeof(*page);
res = sSCSIPeripheral->simple_exec(device->scsi_periph_device,
res = sSCSIPeripheral->simple_exec(info->scsi_periph_device,
&cmd, sizeof(cmd), buffer, len, SCSI_DIR_OUT);
}
@@ -306,7 +305,7 @@ get_set_volume(cd_device_info *device, scsi_volume *volume, bool set)
/*! Play audio cd; time is in MSF */
static status_t
play_msf(cd_device_info *device, const scsi_play_position *position)
play_msf(cd_driver_info *info, const scsi_play_position *position)
{
scsi_cmd_play_msf cmd;
@@ -324,14 +323,14 @@ play_msf(cd_device_info *device, const scsi_play_position *position)
cmd.end_second = position->end_s;
cmd.end_frame = position->end_f;
return sSCSIPeripheral->simple_exec(device->scsi_periph_device,
return sSCSIPeripheral->simple_exec(info->scsi_periph_device,
&cmd, sizeof(cmd), NULL, 0, 0);
}
/*! Play audio cd; time is in track/index */
static status_t
play_track_index(cd_device_info *device, const scsi_play_track *buf)
play_track_index(cd_driver_info *info, const scsi_play_track *buf)
{
scsi_toc generic_toc;
scsi_toc_toc *toc;
@@ -343,7 +342,7 @@ play_track_index(cd_device_info *device, const scsi_play_track *buf)
// the corresponding command PLAY AUDIO TRACK/INDEX is deprecated,
// so we have to simulate it by converting track to time via TOC
res = get_toc(device, &generic_toc);
res = get_toc(info, &generic_toc);
if (res != B_OK)
return res;
@@ -357,7 +356,7 @@ play_track_index(cd_device_info *device, const scsi_play_track *buf)
if (end_track > toc->last_track)
end_track = toc->last_track + 1;
if (end_track < toc->last_track + 1)
++end_track;
@@ -375,12 +374,12 @@ play_track_index(cd_device_info *device, const scsi_play_track *buf)
position.end_s = toc->tracks[end_track].start.time.second;
position.end_f = toc->tracks[end_track].start.time.frame;
return play_msf(device, &position);
return play_msf(info, &position);
}
static status_t
stop_audio(cd_device_info *device)
stop_audio(cd_driver_info *info)
{
scsi_cmd_stop_play cmd;
@@ -389,13 +388,13 @@ stop_audio(cd_device_info *device)
memset( &cmd, 0, sizeof( cmd ));
cmd.opcode = SCSI_OP_STOP_PLAY;
return sSCSIPeripheral->simple_exec(device->scsi_periph_device,
return sSCSIPeripheral->simple_exec(info->scsi_periph_device,
&cmd, sizeof(cmd), NULL, 0, 0);
}
static status_t
pause_resume(cd_device_info *device, bool resume)
pause_resume(cd_driver_info *info, bool resume)
{
scsi_cmd_pause_resume cmd;
@@ -405,13 +404,13 @@ pause_resume(cd_device_info *device, bool resume)
cmd.opcode = SCSI_OP_PAUSE_RESUME;
cmd.resume = resume;
return sSCSIPeripheral->simple_exec(device->scsi_periph_device,
return sSCSIPeripheral->simple_exec(info->scsi_periph_device,
&cmd, sizeof(cmd), NULL, 0, 0);
}
static status_t
scan(cd_device_info *device, const scsi_scan *buf)
scan(cd_driver_info *info, const scsi_scan *buf)
{
scsi_cmd_scan cmd;
scsi_position curPos;
@@ -419,11 +418,11 @@ scan(cd_device_info *device, const scsi_scan *buf)
TRACE("scan(direction =% d)\n", buf->direction);
status_t res = get_position(device, &curPos);
status_t res = get_position(info, &curPos);
if (res != B_OK)
return res;
cdPos = (scsi_cd_current_position *)((char *)&curPos
cdPos = (scsi_cd_current_position *)((char *)&curPos
+ sizeof(scsi_subchannel_data_header));
if (buf->direction == 0) {
@@ -437,7 +436,7 @@ scan(cd_device_info *device, const scsi_scan *buf)
playPos.end_s = 59;
playPos.end_f = 24;
return play_msf(device, &playPos);
return play_msf(info, &playPos);
}
memset(&cmd, 0, sizeof(cmd));
@@ -450,32 +449,32 @@ scan(cd_device_info *device, const scsi_scan *buf)
/*
tmp = (uint8 *)&cmd;
dprintf("%d %d %d %d %d %d %d %d %d %d %d %d\n",
tmp[0], tmp[1], tmp[2], tmp[3], tmp[4], tmp[5],
tmp[0], tmp[1], tmp[2], tmp[3], tmp[4], tmp[5],
tmp[6], tmp[7], tmp[8], tmp[9], tmp[10], tmp[11]);
*/
return sSCSIPeripheral->simple_exec(device->scsi_periph_device,
return sSCSIPeripheral->simple_exec(info->scsi_periph_device,
&cmd, sizeof(cmd), NULL, 0, 0);
}
static status_t
read_cd(cd_device_info *device, const scsi_read_cd *readCD)
read_cd(cd_driver_info *info, const scsi_read_cd *readCD)
{
scsi_cmd_read_cd *cmd;
uint32 lba, length;
uint32 lba, length;
scsi_ccb *ccb;
status_t res;
// we use safe_exec instead of simple_exec as we want to set
// the sorting order manually (only makes much sense if you grab
// multiple tracks at once, but we are prepared)
ccb = device->scsi->alloc_ccb(device->scsi_device);
ccb = info->scsi->alloc_ccb(info->scsi_device);
if (ccb == NULL)
return B_NO_MEMORY;
cmd = (scsi_cmd_read_cd *)ccb->cdb;
cmd = (scsi_cmd_read_cd *)ccb->cdb;
memset(cmd, 0, sizeof(*cmd));
cmd->opcode = SCSI_OP_READ_CD;
cmd->sector_type = 1;
@@ -509,9 +508,9 @@ read_cd(cd_device_info *device, const scsi_read_cd *readCD)
ccb->sg_list = NULL;
ccb->data_length = readCD->buffer_length;
res = sSCSIPeripheral->safe_exec(device->scsi_periph_device, ccb);
res = sSCSIPeripheral->safe_exec(info->scsi_periph_device, ccb);
device->scsi->free_ccb(ccb);
info->scsi->free_ccb(ccb);
return res;
}
@@ -526,56 +525,85 @@ log2(uint32 x)
if (x == (1UL << y))
break;
}
return y;
}
// #pragma mark - block_io API
static status_t
do_io(void* cookie, IOOperation* operation)
{
cd_driver_info* info = (cd_driver_info*)cookie;
// TODO: this can go away as soon as we pushed the IOOperation to the upper
// layers - we can then set scsi_periph::io() as callback for the scheduler
size_t bytesTransferred;
status_t status = sSCSIPeripheral->io(info->scsi_periph_device, operation,
&bytesTransferred);
info->io_scheduler->OperationCompleted(operation, status, bytesTransferred);
return status;
}
// #pragma mark - device module API
static status_t
cd_init_device(void* _info, void** _cookie)
{
cd_driver_info* info = (cd_driver_info*)_info;
// and get (initial) capacity
scsi_ccb *request = info->scsi->alloc_ccb(info->scsi_device);
if (request == NULL)
return B_NO_MEMORY;
sSCSIPeripheral->check_capacity(info->scsi_periph_device, request);
info->scsi->free_ccb(request);
*_cookie = info;
return B_OK;
}
static void
cd_set_device(cd_device_info *info, block_io_device device)
cd_uninit_device(void* _cookie)
{
info->block_io_device = device;
cd_driver_info* info = (cd_driver_info*)_cookie;
delete info->io_scheduler;
delete info->dma_resource;
}
static status_t
cd_open(cd_device_info *device, cd_handle_info **_cookie)
cd_open(void* _info, const char* path, int openMode, void** _cookie)
{
TRACE("open()\n");
cd_driver_info* info = (cd_driver_info*)_info;
cd_handle_info *handle = (cd_handle_info *)malloc(sizeof(*handle));
cd_handle* handle = (cd_handle*)malloc(sizeof(cd_handle));
if (handle == NULL)
return B_NO_MEMORY;
handle->device = device;
handle->info = info;
status_t status = sSCSIPeripheral->handle_open(device->scsi_periph_device,
status_t status = sSCSIPeripheral->handle_open(info->scsi_periph_device,
(periph_handle_cookie)handle, &handle->scsi_periph_handle);
if (status < B_OK) {
free(handle);
return status;
}
if (device->block_size == 0 || device->capacity == 0) {
scsi_ccb *request = device->scsi->alloc_ccb(device->scsi_device);
if (request != NULL) {
// don't care if no test was possible
sSCSIPeripheral->check_capacity(device->scsi_periph_device, request);
device->scsi->free_ccb(request);
}
}
*_cookie = handle;
return B_OK;
}
static status_t
cd_close(cd_handle_info *handle)
cd_close(void* cookie)
{
cd_handle* handle = (cd_handle*)cookie;
TRACE("close()\n");
sSCSIPeripheral->handle_close(handle->scsi_periph_handle);
@@ -584,8 +612,9 @@ cd_close(cd_handle_info *handle)
static status_t
cd_free(cd_handle_info *handle)
cd_free(void* cookie)
{
cd_handle* handle = (cd_handle*)cookie;
TRACE("free()\n");
sSCSIPeripheral->handle_free(handle->scsi_periph_handle);
@@ -595,38 +624,80 @@ cd_free(cd_handle_info *handle)
static status_t
cd_read(cd_handle_info *handle, const phys_vecs *vecs, off_t pos,
size_t num_blocks, uint32 block_size, size_t *bytes_transferred)
cd_read(void* cookie, off_t pos, void* buffer, size_t* _length)
{
return sSCSIPeripheral->read(handle->scsi_periph_handle, vecs, pos,
num_blocks, block_size, bytes_transferred, 10);
cd_handle* handle = (cd_handle*)cookie;
size_t length = *_length;
IORequest request;
status_t status = request.Init(pos, buffer, length, false, 0);
if (status != B_OK)
return status;
status = handle->info->io_scheduler->ScheduleRequest(&request);
if (status != B_OK)
return status;
status = request.Wait(0, 0);
if (status == B_OK)
*_length = length;
else
dprintf("cd_read(): request.Wait() returned: %s\n", strerror(status));
return status;
}
static status_t
cd_write(cd_handle_info *handle, const phys_vecs *vecs, off_t pos,
size_t num_blocks, uint32 block_size, size_t *bytes_transferred)
cd_write(void* cookie, off_t pos, const void* buffer, size_t* _length)
{
return sSCSIPeripheral->write(handle->scsi_periph_handle, vecs, pos,
num_blocks, block_size, bytes_transferred, 10);
cd_handle* handle = (cd_handle*)cookie;
size_t length = *_length;
IORequest request;
status_t status = request.Init(pos, (void*)buffer, length, true, 0);
if (status != B_OK)
return status;
status = handle->info->io_scheduler->ScheduleRequest(&request);
if (status != B_OK)
return status;
status = request.Wait(0, 0);
if (status == B_OK)
*_length = length;
else
dprintf("cd_write(): request.Wait() returned: %s\n", strerror(status));
return status;
}
static status_t
cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
cd_io(void *cookie, io_request *request)
{
cd_device_info *device = handle->device;
cd_handle* handle = (cd_handle*)cookie;
return handle->info->io_scheduler->ScheduleRequest(request);
}
static status_t
cd_ioctl(void* cookie, uint32 op, void* buffer, size_t length)
{
cd_handle* handle = (cd_handle*)cookie;
cd_driver_info *info = handle->info;
TRACE("ioctl(op = %d)\n", op);
switch (op) {
case B_GET_DEVICE_SIZE:
{
status_t status = update_capacity(device);
status_t status = update_capacity(info);
if (status != B_OK)
return status;
size_t size = device->capacity * device->block_size;
size_t size = info->capacity * info->block_size;
return user_memcpy(buffer, &size, sizeof(size_t));
}
@@ -639,7 +710,7 @@ cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
status_t status = get_geometry(handle, &geometry);
if (status != B_OK)
return status;
return user_memcpy(buffer, &geometry, sizeof(device_geometry));
}
@@ -649,22 +720,22 @@ cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
case B_SCSI_GET_TOC:
// TODO: we pass a user buffer here!
return get_toc(device, (scsi_toc *)buffer);
return get_toc(info, (scsi_toc *)buffer);
case B_EJECT_DEVICE:
case B_SCSI_EJECT:
return load_eject(device, false);
return load_eject(info, false);
case B_LOAD_MEDIA:
return load_eject(device, true);
return load_eject(info, true);
case B_SCSI_GET_POSITION:
{
if (buffer == NULL)
return B_BAD_VALUE;
scsi_position position;
status_t status = get_position(device, &position);
status_t status = get_position(info, &position);
if (status != B_OK)
return status;
@@ -673,10 +744,10 @@ cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
case B_SCSI_GET_VOLUME:
// TODO: we pass a user buffer here!
return get_set_volume(device, (scsi_volume *)buffer, false);
return get_set_volume(info, (scsi_volume *)buffer, false);
case B_SCSI_SET_VOLUME:
// TODO: we pass a user buffer here!
return get_set_volume(device, (scsi_volume *)buffer, true);
return get_set_volume(info, (scsi_volume *)buffer, true);
case B_SCSI_PLAY_TRACK:
{
@@ -684,7 +755,7 @@ cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
if (user_memcpy(&track, buffer, sizeof(scsi_play_track)) != B_OK)
return B_BAD_ADDRESS;
return play_track_index(device, &track);
return play_track_index(info, &track);
}
case B_SCSI_PLAY_POSITION:
{
@@ -693,27 +764,27 @@ cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
!= B_OK)
return B_BAD_ADDRESS;
return play_msf(device, &position);
return play_msf(info, &position);
}
case B_SCSI_STOP_AUDIO:
return stop_audio(device);
return stop_audio(info);
case B_SCSI_PAUSE_AUDIO:
return pause_resume(device, false);
return pause_resume(info, false);
case B_SCSI_RESUME_AUDIO:
return pause_resume(device, true);
return pause_resume(info, true);
case B_SCSI_SCAN:
{
scsi_scan scanBuffer;
if (user_memcpy(&scanBuffer, buffer, sizeof(scsi_scan)) != B_OK)
return B_BAD_ADDRESS;
return scan(device, &scanBuffer);
return scan(info, &scanBuffer);
}
case B_SCSI_READ_CD:
// TODO: we pass a user buffer here!
return read_cd(device, (scsi_read_cd *)buffer);
return read_cd(info, (scsi_read_cd *)buffer);
default:
return sSCSIPeripheral->ioctl(handle->scsi_periph_handle, op,
@@ -726,10 +797,10 @@ cd_ioctl(cd_handle_info *handle, int op, void *buffer, size_t length)
static void
cd_set_capacity(cd_device_info *device, uint64 capacity, uint32 blockSize)
cd_set_capacity(cd_driver_info *info, uint64 capacity, uint32 blockSize)
{
TRACE("das_set_capacity(device = %p, capacity = %Ld, blockSize = %ld)\n",
device, capacity, blockSize);
TRACE("cd_set_capacity(info = %p, capacity = %Ld, blockSize = %ld)\n",
info, capacity, blockSize);
// get log2, if possible
uint32 blockShift = log2(blockSize);
@@ -737,20 +808,41 @@ cd_set_capacity(cd_device_info *device, uint64 capacity, uint32 blockSize)
if ((1UL << blockShift) != blockSize)
blockShift = 0;
device->capacity = capacity;
device->block_size = blockSize;
info->capacity = capacity;
sBlockIO->set_media_params(device->block_io_device, blockSize,
blockShift, capacity);
if (info->block_size != blockSize) {
if (info->block_size != 0) {
dprintf("old %ld, new %ld\n", info->block_size, blockSize);
panic("updating DMAResource not yet implemented...");
}
// TODO: we need to replace the DMAResource in our IOScheduler
status_t status = info->dma_resource->Init(info->node, blockSize);
if (status != B_OK)
panic("initializing DMAResource failed: %s", strerror(status));
info->io_scheduler = new(std::nothrow) IOScheduler(info->dma_resource);
if (info->io_scheduler == NULL)
panic("allocating IOScheduler failed.");
// TODO: use whole device name here
status = info->io_scheduler->Init("scsi");
if (status != B_OK)
panic("initializing IOScheduler failed: %s", strerror(status));
info->io_scheduler->SetCallback(do_io, info);
}
info->block_size = blockSize;
}
static void
cd_media_changed(cd_device_info *device, scsi_ccb *request)
cd_media_changed(cd_driver_info *info, scsi_ccb *request)
{
// do a capacity check
// TBD: is this a good idea (e.g. if this is an empty CD)?
sSCSIPeripheral->check_capacity(device->scsi_periph_device, request);
sSCSIPeripheral->check_capacity(info->scsi_periph_device, request);
}
@@ -822,15 +914,15 @@ cd_register_device(device_node *node)
{ NULL }
};
return sDeviceManager->register_node(node, SCSI_CD_MODULE_NAME, attrs,
NULL, NULL);
return sDeviceManager->register_node(node, SCSI_CD_DRIVER_MODULE_NAME,
attrs, NULL, NULL);
}
static status_t
cd_init_driver(device_node *node, void **cookie)
{
cd_device_info *device;
cd_driver_info *info;
status_t status;
uint8 removable;
@@ -841,36 +933,36 @@ cd_init_driver(device_node *node, void **cookie)
if (status != B_OK)
return status;
device = (cd_device_info *)malloc(sizeof(*device));
if (device == NULL)
info = (cd_driver_info *)malloc(sizeof(*info));
if (info == NULL)
return B_NO_MEMORY;
memset(device, 0, sizeof(*device));
memset(info, 0, sizeof(*info));
device->node = node;
device->removable = removable;
info->node = node;
info->removable = removable;
// set capacity to zero, so it get checked on first opened handle
device->capacity = 0;
device->block_size = 0;
info->capacity = 0;
info->block_size = 0;
sDeviceManager->get_attr_uint8(node, SCSI_DEVICE_TYPE_ITEM,
&device->device_type, true);
sDeviceManager->get_attr_uint8(node, SCSI_DEVICE_TYPE_ITEM,
&info->device_type, true);
device_node *parent = sDeviceManager->get_parent_node(node);
sDeviceManager->get_driver(parent, (driver_module_info **)&device->scsi,
(void **)&device->scsi_device);
sDeviceManager->get_driver(parent, (driver_module_info **)&info->scsi,
(void **)&info->scsi_device);
sDeviceManager->put_node(parent);
status = sSCSIPeripheral->register_device((periph_device_cookie)device,
&callbacks, device->scsi_device, device->scsi, device->node,
device->removable, &device->scsi_periph_device);
status = sSCSIPeripheral->register_device((periph_device_cookie)info,
&callbacks, info->scsi_device, info->scsi, info->node,
info->removable, 10, &info->scsi_periph_device);
if (status != B_OK) {
free(device);
free(info);
return status;
}
*cookie = device;
*cookie = info;
return B_OK;
}
@@ -878,26 +970,26 @@ cd_init_driver(device_node *node, void **cookie)
static void
cd_uninit_driver(void *_cookie)
{
cd_device_info *device = (cd_device_info *)_cookie;
cd_driver_info *info = (cd_driver_info *)_cookie;
sSCSIPeripheral->unregister_device(device->scsi_periph_device);
free(device);
sSCSIPeripheral->unregister_device(info->scsi_periph_device);
free(info);
}
static status_t
cd_register_child_devices(void *_cookie)
{
cd_device_info *device = (cd_device_info *)_cookie;
cd_driver_info *info = (cd_driver_info *)_cookie;
status_t status;
char *name;
name = sSCSIPeripheral->compose_device_name(device->node, "disk/scsi");
name = sSCSIPeripheral->compose_device_name(info->node, "disk/scsi");
if (name == NULL)
return B_ERROR;
status = sDeviceManager->publish_device(device->node, name,
B_BLOCK_IO_DEVICE_MODULE_NAME);
status = sDeviceManager->publish_device(info->node, name,
SCSI_CD_DEVICE_MODULE_NAME);
free(name);
return status;
@@ -905,43 +997,52 @@ cd_register_child_devices(void *_cookie)
module_dependency module_dependencies[] = {
{SCSI_PERIPH_MODULE_NAME, (module_info **)&sSCSIPeripheral},
{B_BLOCK_IO_FOR_DRIVER_MODULE_NAME, (module_info **)&sBlockIO},
{B_DEVICE_MANAGER_MODULE_NAME, (module_info **)&sDeviceManager},
{SCSI_PERIPH_MODULE_NAME, (module_info**)&sSCSIPeripheral},
{B_DEVICE_MANAGER_MODULE_NAME, (module_info**)&sDeviceManager},
{}
};
block_device_interface sSCSICDModule = {
struct device_module_info sSCSICDDevice = {
{
{
SCSI_CD_MODULE_NAME,
0,
NULL
},
cd_supports_device,
cd_register_device,
cd_init_driver,
cd_uninit_driver,
cd_register_child_devices,
NULL, // rescan
NULL, // removed
SCSI_CD_DEVICE_MODULE_NAME,
0,
NULL
},
(void (*)(block_device_cookie *, block_io_device)) &cd_set_device,
(status_t (*)(block_device_cookie *, block_device_handle_cookie **))&cd_open,
(status_t (*)(block_device_handle_cookie *)) &cd_close,
(status_t (*)(block_device_handle_cookie *)) &cd_free,
cd_init_device,
cd_uninit_device,
NULL, // remove,
(status_t (*)(block_device_handle_cookie *, const phys_vecs *,
off_t, size_t, uint32, size_t *)) &cd_read,
(status_t (*)(block_device_handle_cookie *, const phys_vecs *,
off_t, size_t, uint32, size_t *)) &cd_write,
cd_open,
cd_close,
cd_free,
cd_read,
cd_write,
cd_io,
cd_ioctl,
(status_t (*)(block_device_handle_cookie *, int, void *, size_t))&cd_ioctl,
NULL, // select
NULL, // deselect
};
module_info *modules[] = {
(module_info *)&sSCSICDModule,
struct driver_module_info sSCSICDDriver = {
{
SCSI_CD_DRIVER_MODULE_NAME,
0,
NULL
},
cd_supports_device,
cd_register_device,
cd_init_driver,
cd_uninit_driver,
cd_register_child_devices,
NULL, // rescan
NULL, // removed
};
module_info* modules[] = {
(module_info*)&sSCSICDDriver,
(module_info*)&sSCSICDDevice,
NULL
};
@@ -12,28 +12,33 @@
#include <scsi_periph.h>
#include <scsi.h>
#define SCSI_CD_MODULE_NAME "drivers/disk/scsi/scsi_cd/driver_v1"
#include "dma_resources.h"
#include "io_requests.h"
#include "IOScheduler.h"
// must start as block_device_cookie
typedef struct cd_device_info {
device_node *node;
::scsi_periph_device scsi_periph_device;
::scsi_device scsi_device;
scsi_device_interface *scsi;
::block_io_device block_io_device;
#define SCSI_CD_DRIVER_MODULE_NAME "drivers/disk/scsi/scsi_cd/driver_v1"
#define SCSI_CD_DEVICE_MODULE_NAME "drivers/disk/scsi/scsi_cd/device_v1"
uint64 capacity;
uint32 block_size;
bool removable;
uint8 device_type;
} cd_device_info;
typedef struct cd_handle_info {
::scsi_periph_handle scsi_periph_handle;
cd_device_info *device;
} cd_handle_info;
struct cd_driver_info {
device_node* node;
::scsi_periph_device scsi_periph_device;
::scsi_device scsi_device;
scsi_device_interface* scsi;
IOScheduler* io_scheduler;
DMAResource* dma_resource;
uint64 capacity;
uint32 block_size;
bool removable;
uint8 device_type;
};
struct cd_handle {
::scsi_periph_handle scsi_periph_handle;
cd_driver_info* info;
};
#endif // _SCSI_CD_H