diff options
| author | Malcolm Priestley <tvboxspy@gmail.com> | 2011-11-30 17:14:47 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-12-11 08:55:27 -0200 |
| commit | b69902914803a8bf93f39f0db642430504c800ba (patch) | |
| tree | 251343004757661268e14c26753fccba3a1c088d /drivers/media | |
| parent | c725ff69737313647f981813e8f39a372c99b0f0 (diff) | |
[media] dvb-usb/it913x: multi firmware loader
Multi firmware loader
This uses scatter write firmware headers
The firmware must start with 03 XX 00
and be the extract firmware length.
I have tried all available firmwares with this loader.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/it913x.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/drivers/media/dvb/dvb-usb/it913x.c b/drivers/media/dvb/dvb-usb/it913x.c index 394bbf44e3d..c7bf03c3a6d 100644 --- a/drivers/media/dvb/dvb-usb/it913x.c +++ b/drivers/media/dvb/dvb-usb/it913x.c @@ -485,35 +485,40 @@ static int it913x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) return ret; } - static int it913x_download_firmware(struct usb_device *udev, const struct firmware *fw) { - int ret = 0, i; - u8 packet_size, dlen; + int ret = 0, i = 0, pos = 0; + u8 packet_size; u8 *fw_data; - packet_size = 0x29; - ret = it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_100); info("FRM Starting Firmware Download"); - /* This uses scatter write firmware headers follow */ - /* 03 XX 00 XX = chip number? */ - - for (i = 0; i < fw->size; i += packet_size) { - if (i > 0) - packet_size = 0x39; - fw_data = (u8 *)(fw->data + i); - dlen = ((i + packet_size) > fw->size) - ? (fw->size - i) : packet_size; - ret |= it913x_io(udev, WRITE_DATA, DEV_0, - CMD_SCATTER_WRITE, 0, 0, fw_data, dlen); - udelay(1000); + + /* Multi firmware loader */ + /* This uses scatter write firmware headers */ + /* The firmware must start with 03 XX 00 */ + /* and be the extact firmware length */ + + while (i <= fw->size) { + if (((fw->data[i] == 0x3) && (fw->data[i + 2] == 0x0)) + || (i == fw->size)) { + packet_size = i - pos; + if ((packet_size > 0x19) || (i == fw->size)) { + fw_data = (u8 *)(fw->data + pos); + pos += packet_size; + if (packet_size > 0) + ret |= it913x_io(udev, WRITE_DATA, + DEV_0, CMD_SCATTER_WRITE, 0, + 0, fw_data, packet_size); + udelay(1000); + } + } + i++; } - ret |= it913x_io(udev, WRITE_CMD, DEV_0, - CMD_BOOT, 0, 0, NULL, 0); + ret |= it913x_io(udev, WRITE_CMD, DEV_0, CMD_BOOT, 0, 0, NULL, 0); msleep(100); |