From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:42212 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752055Ab1K3VO6 (ORCPT ); Wed, 30 Nov 2011 16:14:58 -0500 Received: by mail-ey0-f174.google.com with SMTP id k14so1228007eaa.19 for ; Wed, 30 Nov 2011 13:14:57 -0800 (PST) Message-ID: <1322687687.2476.8.camel@tvbox> Subject: [PATCH 1/3] [For 3.3] dvb-usb-it913x multi firmware loader. From: Malcolm Priestley To: linux-media@vger.kernel.org Date: Wed, 30 Nov 2011 21:14:47 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-media-owner@vger.kernel.org List-ID: 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 --- 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 394bbf4..c7bf03c 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); -- 1.7.7.1