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authorMatthew Dharm <mdharm-usb@one-eyed-alien.net>2005-12-30 22:06:53 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-01-31 20:23:37 -0500
commitabb02fdf83f981f2511b3772db6e106845c70ad9 (patch)
tree8106d93df3965f80914b30057c14cb3048c1098e /drivers/usb
parent8e2ce4f92a0f34e8c3316ec58fd6eb6aa282448e (diff)
[PATCH] USB: usb-storage: Add support for Rio Karma
This patch from Bob Copeland adds support for the Rio Karma portable digital audio player to the usb-storage driver. The only thing needed to support this device is a one-time (per plugin) init command which is sent to the device. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/storage/initializers.c73
-rw-r--r--drivers/usb/storage/initializers.h1
-rw-r--r--drivers/usb/storage/unusual_devs.h5
3 files changed, 79 insertions, 0 deletions
diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c
index 5b06f9240d05..ab173b30076e 100644
--- a/drivers/usb/storage/initializers.c
+++ b/drivers/usb/storage/initializers.c
@@ -45,6 +45,12 @@
45#include "debug.h" 45#include "debug.h"
46#include "transport.h" 46#include "transport.h"
47 47
48#define RIO_MSC 0x08
49#define RIOP_INIT "RIOP\x00\x01\x08"
50#define RIOP_INIT_LEN 7
51#define RIO_SEND_LEN 40
52#define RIO_RECV_LEN 0x200
53
48/* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target 54/* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target
49 * mode */ 55 * mode */
50int usb_stor_euscsi_init(struct us_data *us) 56int usb_stor_euscsi_init(struct us_data *us)
@@ -91,3 +97,70 @@ int usb_stor_ucr61s2b_init(struct us_data *us)
91 97
92 return (res ? -1 : 0); 98 return (res ? -1 : 0);
93} 99}
100
101/* Place the Rio Karma into mass storage mode.
102 *
103 * The initialization begins by sending 40 bytes starting
104 * RIOP\x00\x01\x08\x00, which the device will ack with a 512-byte
105 * packet with the high four bits set and everything else null.
106 *
107 * Next, we send RIOP\x80\x00\x08\x00. Each time, a 512 byte response
108 * must be read, but we must loop until byte 5 in the response is 0x08,
109 * indicating success. */
110int rio_karma_init(struct us_data *us)
111{
112 int result, partial;
113 char *recv;
114 unsigned long timeout;
115
116 // us->iobuf is big enough to hold cmd but not receive
117 if (!(recv = kmalloc(RIO_RECV_LEN, GFP_KERNEL)))
118 goto die_nomem;
119
120 US_DEBUGP("Initializing Karma...\n");
121
122 memset(us->iobuf, 0, RIO_SEND_LEN);
123 memcpy(us->iobuf, RIOP_INIT, RIOP_INIT_LEN);
124
125 result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
126 us->iobuf, RIO_SEND_LEN, &partial);
127 if (result != USB_STOR_XFER_GOOD)
128 goto die;
129
130 result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
131 recv, RIO_RECV_LEN, &partial);
132 if (result != USB_STOR_XFER_GOOD)
133 goto die;
134
135 us->iobuf[4] = 0x80;
136 us->iobuf[5] = 0;
137 timeout = jiffies + msecs_to_jiffies(3000);
138 for (;;) {
139 US_DEBUGP("Sending init command\n");
140 result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
141 us->iobuf, RIO_SEND_LEN, &partial);
142 if (result != USB_STOR_XFER_GOOD)
143 goto die;
144
145 result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
146 recv, RIO_RECV_LEN, &partial);
147 if (result != USB_STOR_XFER_GOOD)
148 goto die;
149
150 if (recv[5] == RIO_MSC)
151 break;
152 if (time_after(jiffies, timeout))
153 goto die;
154 msleep(10);
155 }
156 US_DEBUGP("Karma initialized.\n");
157 kfree(recv);
158 return 0;
159
160die:
161 kfree(recv);
162die_nomem:
163 US_DEBUGP("Could not initialize karma.\n");
164 return USB_STOR_TRANSPORT_FAILED;
165}
166
diff --git a/drivers/usb/storage/initializers.h b/drivers/usb/storage/initializers.h
index 4c1b2bd2e2e4..f9907a5cf129 100644
--- a/drivers/usb/storage/initializers.h
+++ b/drivers/usb/storage/initializers.h
@@ -48,3 +48,4 @@ int usb_stor_euscsi_init(struct us_data *us);
48/* This function is required to activate all four slots on the UCR-61S2B 48/* This function is required to activate all four slots on the UCR-61S2B
49 * flash reader */ 49 * flash reader */
50int usb_stor_ucr61s2b_init(struct us_data *us); 50int usb_stor_ucr61s2b_init(struct us_data *us);
51int rio_karma_init(struct us_data *us);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index dc301e567cfc..5e2afd4a27bc 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -145,6 +145,11 @@ UNUSUAL_DEV( 0x0451, 0x5416, 0x0100, 0x0100,
145 US_SC_DEVICE, US_PR_BULK, NULL, 145 US_SC_DEVICE, US_PR_BULK, NULL,
146 US_FL_NEED_OVERRIDE ), 146 US_FL_NEED_OVERRIDE ),
147 147
148UNUSUAL_DEV( 0x045a, 0x5210, 0x0101, 0x0101,
149 "Rio",
150 "Rio Karma",
151 US_SC_SCSI, US_PR_BULK, rio_karma_init, 0),
152
148/* Patch submitted by Philipp Friedrich <philipp@void.at> */ 153/* Patch submitted by Philipp Friedrich <philipp@void.at> */
149UNUSUAL_DEV( 0x0482, 0x0100, 0x0100, 0x0100, 154UNUSUAL_DEV( 0x0482, 0x0100, 0x0100, 0x0100,
150 "Kyocera", 155 "Kyocera",