>From ff5bcf0e4a3fcc8ee65f63b8b4bffbf58f9b635d Mon Sep 17 00:00:00 2001 From: Ronnie Sahlberg <[EMAIL PROTECTED]> Date: Tue, 6 May 2008 16:32:05 +1000 Subject: [PATCH] Add tweaks to get linux dvdrecord happy
Add a new modepage (write performance) and a few commands to keep
linux dvdrecord happy.
Document an example on how to use MMC emulation with linux dvdrecord
Signed-off-by: Ronnie Sahlberg <[EMAIL PROTECTED]>
---
doc/README.mmc | 7 +++++++
usr/mmc.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++-------
2 files changed, 54 insertions(+), 7 deletions(-)
diff --git a/doc/README.mmc b/doc/README.mmc
index 265b95a..6f7074d 100644
--- a/doc/README.mmc
+++ b/doc/README.mmc
@@ -37,6 +37,13 @@ operations in which case it may or may not work.
It is the intent that the emulation will be enhanced to provide compatibility
with all DVD burning applications on all important platforms.
+The emulation is also compatible with Linux:dvdrecorder but you must
+specify the command arguments -dao -ignsize -overburn
+
+Example:
+dvdrecord -dao -ignsize -overburn dev=/dev/sg3 ./IMAGE.iso
+
+
Please report incompatibilities with other burning applications other than
Windows/DVD-Decrypter to [EMAIL PROTECTED] and I will try to
enhance the emulation to also support your application of choice.
diff --git a/usr/mmc.c b/usr/mmc.c
index 1ab31c3..074b9be 100644
--- a/usr/mmc.c
+++ b/usr/mmc.c
@@ -54,6 +54,7 @@
struct mmc_info {
int current_profile;
+ uint64_t reserve_track_len;
};
static int mmc_rw(int host_no, struct scsi_cmd *cmd)
@@ -61,6 +62,7 @@ static int mmc_rw(int host_no, struct scsi_cmd *cmd)
struct mmc_info *mmc = (struct mmc_info *)cmd->dev->mmc_p;
int ret;
uint64_t end_offset;
+ uint64_t offset, length;
if (mmc->current_profile == PROFILE_NO_PROFILE) {
scsi_set_in_resid_by_actual(cmd, 0);
@@ -97,11 +99,13 @@ static int mmc_rw(int host_no, struct scsi_cmd *cmd)
cmd->scsi_cmd_done = target_cmd_io_done;
- cmd->offset = (scsi_rw_offset(cmd->scb) << MMC_BLK_SHIFT);
+ offset = scsi_rw_offset(cmd->scb);
+ cmd->offset = (offset << MMC_BLK_SHIFT);
/* update the size of the device */
- end_offset = cmd->offset +
- (((uint64_t)scsi_rw_count(cmd->scb)) << MMC_BLK_SHIFT);
+ length = scsi_rw_count(cmd->scb);
+ end_offset = cmd->offset + (length << MMC_BLK_SHIFT);
+
if (end_offset > cmd->dev->size)
cmd->dev->size = end_offset;
@@ -116,6 +120,12 @@ static int mmc_rw(int host_no, struct scsi_cmd *cmd)
sense_data_build(cmd, ILLEGAL_REQUEST, ASC_LUN_NOT_SUPPORTED);
return SAM_STAT_CHECK_CONDITION;
} else {
+ if ((mmc->current_profile == PROFILE_DVD_PLUS_R) &&
+ (mmc->reserve_track_len == (offset + length))) {
+ /* once we close the track it becomes a DVD_ROM */
+ mmc->current_profile = PROFILE_DVD_ROM;
+ }
+
set_cmd_mmapio(cmd);
return SAM_STAT_GOOD;
}
@@ -2146,6 +2156,31 @@ static int mmc_read_dvd_structure(int host_no,
struct scsi_cmd *cmd)
return SAM_STAT_CHECK_CONDITION;
}
+static int mmc_reserve_track(int host_no, struct scsi_cmd *cmd)
+{
+ struct mmc_info *mmc = (struct mmc_info *)cmd->dev->mmc_p;
+ uint64_t tmp;
+
+ tmp = cmd->scb[5];
+ tmp = (tmp << 8) | cmd->scb[6];
+ tmp = (tmp << 8) | cmd->scb[7];
+ tmp = (tmp << 8) | cmd->scb[8];
+
+ mmc->reserve_track_len = tmp;
+
+ return SAM_STAT_GOOD;
+}
+
+static int mmc_mode_select(int host_no, struct scsi_cmd *cmd)
+{
+ return SAM_STAT_GOOD;
+}
+
+static int mmc_set_cd_speed(int host_no, struct scsi_cmd *cmd)
+{
+ return SAM_STAT_GOOD;
+}
+
static int mmc_mode_sense(int host_no, struct scsi_cmd *cmd)
{
uint8_t *scb = cmd->scb;
@@ -2222,7 +2257,11 @@ static int mmc_lu_init(struct scsi_lu *lu)
"0x83:0x00:0x00:0x02:0xc2:0x00:0x00:0x00:"
"0x00:0x00:0x00:0x00:0x00:0x00:0x00:0x00:"
"0x00");
-
+ /* Write parameters */
+ add_mode_page(lu, "0x05:0:0x32:0x62:5:8:0x10:0:0:0:0:0:0:0:"
+ "0x10:0:0x96:0:0:0:0:0:0:0:0:0:0:0:0:0:0:"
+ "0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:"
+ "0:0");
return 0;
}
@@ -2232,6 +2271,7 @@ static int mmc_lu_online(struct scsi_lu *lu)
struct stat st;
mmc->current_profile = PROFILE_NO_PROFILE;
+ mmc->reserve_track_len = 0;
if (lu->fd == -1)
return TGTADM_INVALID_REQUEST;
@@ -2363,9 +2403,9 @@ static struct device_type_template mmc_template = {
{spc_illegal_op,},
{mmc_read_disc_information,},
{mmc_read_track_information,},
+ {mmc_reserve_track,},
{spc_illegal_op,},
- {spc_illegal_op,},
- {spc_illegal_op,},
+ {mmc_mode_select,},
{spc_illegal_op,},
{spc_illegal_op,},
@@ -2412,7 +2452,7 @@ static struct device_type_template mmc_template = {
{spc_illegal_op,},
{spc_illegal_op,},
{spc_illegal_op,},
- {spc_illegal_op,},
+ {mmc_set_cd_speed,},
{spc_illegal_op,},
{spc_illegal_op,},
{spc_illegal_op,},
--
1.5.5
0003-Add-tweaks-to-get-linux-dvdrecord-happy.patch.gz
Description: GNU Zip compressed data
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