From b69902914803a8bf93f39f0db642430504c800ba Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Wed, 30 Nov 2011 17:14:47 -0300 Subject: [PATCH] [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/it913x.c | 43 +++++++++++++++++------------- 1 file changed, 24 insertions(+), 19 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/it913x.c b/drivers/media/dvb/dvb-usb/it913x.c index 394bbf44e3d7..c7bf03c3a6de 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); -- 2.20.1