2 #include "dvb-usb-common.h"
6 struct usb_cypress_controller
{
8 const char *name
; /* name of the usb controller */
9 u16 cpu_cs_register
; /* needs to be restarted, when the firmware has been downloaded. */
12 static struct usb_cypress_controller cypress
[] = {
13 { .id
= DEVICE_SPECIFIC
, .name
= "Device specific", .cpu_cs_register
= 0 },
14 { .id
= CYPRESS_AN2135
, .name
= "Cypress AN2135", .cpu_cs_register
= 0x7f92 },
15 { .id
= CYPRESS_AN2235
, .name
= "Cypress AN2235", .cpu_cs_register
= 0x7f92 },
16 { .id
= CYPRESS_FX2
, .name
= "Cypress FX2", .cpu_cs_register
= 0xe600 },
20 * load a firmware packet to the device
22 static int usb_cypress_writemem(struct usb_device
*udev
,u16 addr
,u8
*data
, u8 len
)
24 return usb_control_msg(udev
, usb_sndctrlpipe(udev
,0),
25 0xa0, USB_TYPE_VENDOR
, addr
, 0x00, data
, len
, 5000);
28 int usb_cypress_load_firmware(struct usb_device
*udev
, const struct firmware
*fw
, int type
)
36 if ((ret
= usb_cypress_writemem(udev
,cypress
[type
].cpu_cs_register
,&reset
,1)) != 1)
37 err("could not stop the USB controller CPU.");
39 while ((ret
= dvb_usb_get_hexline(fw
,&hx
,&pos
)) > 0) {
40 deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx
.addr
,hx
.len
,hx
.chk
);
41 ret
= usb_cypress_writemem(udev
,hx
.addr
,hx
.data
,hx
.len
);
44 err("error while transferring firmware "
45 "(transferred size: %d, block size: %d)",
52 err("firmware download failed at %d with %d",pos
,ret
);
59 if (ret
|| usb_cypress_writemem(udev
,cypress
[type
].cpu_cs_register
,&reset
,1) != 1) {
60 err("could not restart the USB controller CPU.");
68 EXPORT_SYMBOL(usb_cypress_load_firmware
);
70 int dvb_usb_download_firmware(struct usb_device
*udev
, struct dvb_usb_device_properties
*props
)
73 const struct firmware
*fw
= NULL
;
75 if ((ret
= request_firmware(&fw
, props
->firmware
, &udev
->dev
)) != 0) {
76 err("did not find the firmware file. (%s) "
77 "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
82 info("downloading firmware from file '%s'",props
->firmware
);
84 switch (props
->usb_ctrl
) {
88 ret
= usb_cypress_load_firmware(udev
, fw
, props
->usb_ctrl
);
91 if (props
->download_firmware
)
92 ret
= props
->download_firmware(udev
,fw
);
94 err("BUG: driver didn't specified a download_firmware-callback, although it claims to have a DEVICE_SPECIFIC one.");
103 release_firmware(fw
);
107 int dvb_usb_get_hexline(const struct firmware
*fw
, struct hexline
*hx
,
110 u8
*b
= (u8
*) &fw
->data
[*pos
];
112 if (*pos
>= fw
->size
)
115 memset(hx
,0,sizeof(struct hexline
));
119 if ((*pos
+ hx
->len
+ 4) >= fw
->size
)
122 hx
->addr
= b
[1] | (b
[2] << 8);
125 if (hx
->type
== 0x04) {
126 /* b[4] and b[5] are the Extended linear address record data field */
127 hx
->addr
|= (b
[4] << 24) | (b
[5] << 16);
131 memcpy(hx
->data
,&b
[data_offs
],hx
->len
);
132 hx
->chk
= b
[hx
->len
+ data_offs
];
138 EXPORT_SYMBOL(dvb_usb_get_hexline
);