578 lines
16 KiB
C
578 lines
16 KiB
C
/*
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* This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
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*
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* flexcop-usb.c - covers the USB part.
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*
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* see flexcop.c for copyright information.
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*/
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#define FC_LOG_PREFIX "flexcop_usb"
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#include "flexcop-usb.h"
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#include "flexcop-common.h"
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/* Version information */
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#define DRIVER_VERSION "0.1"
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#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
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#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de>"
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/* debug */
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#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
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#define dprintk(level,args...) \
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do { if ((debug & level)) { printk(args); } } while (0)
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#define debug_dump(b,l,method) {\
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int i; \
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for (i = 0; i < l; i++) method("%02x ", b[i]); \
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method("\n");\
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}
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#define DEBSTATUS ""
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#else
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#define dprintk(level,args...)
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#define debug_dump(b,l,method)
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#define DEBSTATUS " (debugging is not enabled)"
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#endif
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,ctrl=4,i2c=8,v8mem=16 (or-able))." DEBSTATUS);
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#undef DEBSTATUS
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#define deb_info(args...) dprintk(0x01,args)
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#define deb_ts(args...) dprintk(0x02,args)
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#define deb_ctrl(args...) dprintk(0x04,args)
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#define deb_i2c(args...) dprintk(0x08,args)
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#define deb_v8(args...) dprintk(0x10,args)
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/* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
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* in the IBI address, to make the V8 code simpler.
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* PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (these are the six bits used)
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* in general: 0000 0HHH 000L LL00
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* IBI ADDRESS FORMAT: RHHH BLLL
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*
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* where R is the read(1)/write(0) bit, B is the busy bit
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* and HHH and LLL are the two sets of three bits from the PCI address.
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*/
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#define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) (((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
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#define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) (((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
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/*
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* DKT 020228
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* - forget about this VENDOR_BUFFER_SIZE, read and write register
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* deal with DWORD or 4 bytes, that should be should from now on
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* - from now on, we don't support anything older than firm 1.00
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* I eliminated the write register as a 2 trip of writing hi word and lo word
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* and force this to write only 4 bytes at a time.
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* NOTE: this should work with all the firmware from 1.00 and newer
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*/
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static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
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{
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struct flexcop_usb *fc_usb = fc->bus_specific;
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u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
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u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
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u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) | (read ? 0x80 : 0);
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int len = usb_control_msg(fc_usb->udev,
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read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
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request,
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request_type, /* 0xc0 read or 0x40 write*/
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wAddress,
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0,
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val,
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sizeof(u32),
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B2C2_WAIT_FOR_OPERATION_RDW * HZ);
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if (len != sizeof(u32)) {
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err("error while %s dword from %d (%d).",read ? "reading" : "writing",
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wAddress,wRegOffsPCI);
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return -EIO;
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}
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return 0;
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}
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/*
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* DKT 010817 - add support for V8 memory read/write and flash update
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*/
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static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
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flexcop_usb_request_t req, u8 page, u16 wAddress,
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u8 *pbBuffer,u32 buflen)
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{
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// u8 dwRequestType;
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u8 request_type = USB_TYPE_VENDOR;
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u16 wIndex;
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int nWaitTime,pipe,len;
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wIndex = page << 8;
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switch (req) {
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case B2C2_USB_READ_V8_MEM:
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nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
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request_type |= USB_DIR_IN;
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// dwRequestType = (u8) RTYPE_READ_V8_MEMORY;
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pipe = B2C2_USB_CTRL_PIPE_IN;
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break;
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case B2C2_USB_WRITE_V8_MEM:
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wIndex |= pbBuffer[0];
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request_type |= USB_DIR_OUT;
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nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
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// dwRequestType = (u8) RTYPE_WRITE_V8_MEMORY;
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pipe = B2C2_USB_CTRL_PIPE_OUT;
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break;
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case B2C2_USB_FLASH_BLOCK:
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request_type |= USB_DIR_OUT;
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nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
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// dwRequestType = (u8) RTYPE_WRITE_V8_FLASH;
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pipe = B2C2_USB_CTRL_PIPE_OUT;
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break;
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default:
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deb_info("unsupported request for v8_mem_req %x.\n",req);
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return -EINVAL;
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}
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deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n",request_type,req,
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wAddress,wIndex,buflen);
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len = usb_control_msg(fc_usb->udev,pipe,
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req,
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request_type,
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wAddress,
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wIndex,
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pbBuffer,
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buflen,
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nWaitTime * HZ);
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debug_dump(pbBuffer,len,deb_v8);
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return len == buflen ? 0 : -EIO;
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}
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#define bytes_left_to_read_on_page(paddr,buflen) \
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((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
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? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))
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static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,flexcop_usb_request_t req,
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flexcop_usb_mem_page_t page_start, u32 addr, int extended, u8 *buf, u32 len)
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{
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int i,ret = 0;
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u16 wMax;
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u32 pagechunk = 0;
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switch(req) {
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case B2C2_USB_READ_V8_MEM: wMax = USB_MEM_READ_MAX; break;
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case B2C2_USB_WRITE_V8_MEM: wMax = USB_MEM_WRITE_MAX; break;
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case B2C2_USB_FLASH_BLOCK: wMax = USB_FLASH_MAX; break;
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default:
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return -EINVAL;
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break;
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}
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for (i = 0; i < len;) {
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pagechunk = wMax < bytes_left_to_read_on_page(addr,len) ? wMax : bytes_left_to_read_on_page(addr,len);
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deb_info("%x\n",(addr & V8_MEMORY_PAGE_MASK) | (V8_MEMORY_EXTENDED*extended));
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if ((ret = flexcop_usb_v8_memory_req(fc_usb,req,
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page_start + (addr / V8_MEMORY_PAGE_SIZE), /* actual page */
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(addr & V8_MEMORY_PAGE_MASK) | (V8_MEMORY_EXTENDED*extended),
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&buf[i],pagechunk)) < 0)
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return ret;
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addr += pagechunk;
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len -= pagechunk;
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}
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return 0;
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}
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static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
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{
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return flexcop_usb_memory_req(fc->bus_specific,B2C2_USB_READ_V8_MEM,
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V8_MEMORY_PAGE_FLASH,0x1f010,1,fc->dvb_adapter.proposed_mac,6);
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}
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#if 0
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static int flexcop_usb_utility_req(struct flexcop_usb *fc_usb, int set,
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flexcop_usb_utility_function_t func, u8 extra, u16 wIndex,
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u16 buflen, u8 *pvBuffer)
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{
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u16 wValue;
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u8 request_type = (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR;
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// u8 dwRequestType = (u8) RTYPE_GENERIC,
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int nWaitTime = 2,
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pipe = set ? B2C2_USB_CTRL_PIPE_OUT : B2C2_USB_CTRL_PIPE_IN,
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len;
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wValue = (func << 8) | extra;
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len = usb_control_msg(fc_usb->udev,pipe,
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B2C2_USB_UTILITY,
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request_type,
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wValue,
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wIndex,
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pvBuffer,
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buflen,
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nWaitTime * HZ);
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return len == buflen ? 0 : -EIO;
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}
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#endif
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/* usb i2c stuff */
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static int flexcop_usb_i2c_req(struct flexcop_usb *fc_usb,
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flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
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flexcop_i2c_port_t port, u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
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{
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u16 wValue, wIndex;
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int nWaitTime,pipe,len;
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// u8 dwRequestType;
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u8 request_type = USB_TYPE_VENDOR;
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switch (func) {
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case USB_FUNC_I2C_WRITE:
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case USB_FUNC_I2C_MULTIWRITE:
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case USB_FUNC_I2C_REPEATWRITE:
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/* DKT 020208 - add this to support special case of DiSEqC */
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case USB_FUNC_I2C_CHECKWRITE:
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pipe = B2C2_USB_CTRL_PIPE_OUT;
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nWaitTime = 2;
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// dwRequestType = (u8) RTYPE_GENERIC;
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request_type |= USB_DIR_OUT;
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break;
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case USB_FUNC_I2C_READ:
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case USB_FUNC_I2C_REPEATREAD:
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pipe = B2C2_USB_CTRL_PIPE_IN;
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nWaitTime = 2;
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// dwRequestType = (u8) RTYPE_GENERIC;
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request_type |= USB_DIR_IN;
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break;
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default:
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deb_info("unsupported function for i2c_req %x\n",func);
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return -EINVAL;
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}
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wValue = (func << 8 ) | (port << 4);
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wIndex = (chipaddr << 8 ) | addr;
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deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",func,request_type,req,
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((wValue && 0xff) << 8),wValue >> 8,((wIndex && 0xff) << 8),wIndex >> 8);
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len = usb_control_msg(fc_usb->udev,pipe,
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req,
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request_type,
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wValue,
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wIndex,
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buf,
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buflen,
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nWaitTime * HZ);
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return len == buflen ? 0 : -EREMOTEIO;
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}
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/* actual bus specific access functions, make sure prototype are/will be equal to pci */
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static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register reg)
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{
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flexcop_ibi_value val;
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val.raw = 0;
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flexcop_usb_readwrite_dw(fc,reg, &val.raw, 1);
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return val;
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}
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static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register reg, flexcop_ibi_value val)
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{
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return flexcop_usb_readwrite_dw(fc,reg, &val.raw, 0);
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}
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static int flexcop_usb_i2c_request(struct flexcop_device *fc, flexcop_access_op_t op,
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flexcop_i2c_port_t port, u8 chipaddr, u8 addr, u8 *buf, u16 len)
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{
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if (op == FC_READ)
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return flexcop_usb_i2c_req(fc->bus_specific,B2C2_USB_I2C_REQUEST,USB_FUNC_I2C_READ,port,chipaddr,addr,buf,len);
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else
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return flexcop_usb_i2c_req(fc->bus_specific,B2C2_USB_I2C_REQUEST,USB_FUNC_I2C_WRITE,port,chipaddr,addr,buf,len);
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}
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static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb, u8 *buffer, int buffer_length)
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{
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u8 *b;
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int l;
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deb_ts("tmp_buffer_length=%d, buffer_length=%d\n", fc_usb->tmp_buffer_length, buffer_length);
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if (fc_usb->tmp_buffer_length > 0) {
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memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer, buffer_length);
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fc_usb->tmp_buffer_length += buffer_length;
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b = fc_usb->tmp_buffer;
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l = fc_usb->tmp_buffer_length;
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} else {
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b=buffer;
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l=buffer_length;
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}
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while (l >= 190) {
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if (*b == 0xff)
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switch (*(b+1) & 0x03) {
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case 0x01: /* media packet */
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if ( *(b+2) == 0x47 )
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flexcop_pass_dmx_packets(fc_usb->fc_dev, b+2, 1);
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else
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deb_ts("not ts packet %02x %02x %02x %02x \n", *(b+2), *(b+3), *(b+4), *(b+5) );
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b += 190;
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l -= 190;
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break;
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default:
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deb_ts("wrong packet type\n");
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l = 0;
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break;
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}
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else {
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deb_ts("wrong header\n");
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l = 0;
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}
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}
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if (l>0)
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memcpy(fc_usb->tmp_buffer, b, l);
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fc_usb->tmp_buffer_length = l;
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}
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static void flexcop_usb_urb_complete(struct urb *urb, struct pt_regs *ptregs)
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{
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struct flexcop_usb *fc_usb = urb->context;
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int i;
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if (urb->actual_length > 0)
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deb_ts("urb completed, bufsize: %d actlen; %d\n",urb->transfer_buffer_length, urb->actual_length);
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for (i = 0; i < urb->number_of_packets; i++) {
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if (urb->iso_frame_desc[i].status < 0) {
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err("iso frame descriptor %d has an error: %d\n",i,urb->iso_frame_desc[i].status);
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} else
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if (urb->iso_frame_desc[i].actual_length > 0) {
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deb_ts("passed %d bytes to the demux\n",urb->iso_frame_desc[i].actual_length);
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flexcop_usb_process_frame(fc_usb,
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urb->transfer_buffer + urb->iso_frame_desc[i].offset,
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urb->iso_frame_desc[i].actual_length);
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}
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urb->iso_frame_desc[i].status = 0;
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urb->iso_frame_desc[i].actual_length = 0;
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}
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usb_submit_urb(urb,GFP_ATOMIC);
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}
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static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
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{
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/* submit/kill iso packets */
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return 0;
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}
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static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
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{
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int i;
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for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
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if (fc_usb->iso_urb[i] != NULL) {
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deb_ts("unlinking/killing urb no. %d\n",i);
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usb_kill_urb(fc_usb->iso_urb[i]);
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usb_free_urb(fc_usb->iso_urb[i]);
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}
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if (fc_usb->iso_buffer != NULL)
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pci_free_consistent(NULL,fc_usb->buffer_size, fc_usb->iso_buffer, fc_usb->dma_addr);
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}
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static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
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{
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u16 frame_size = fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize;
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int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO * frame_size,i,j,ret;
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int buffer_offset = 0;
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deb_ts("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
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B2C2_USB_NUM_ISO_URB, B2C2_USB_FRAMES_PER_ISO, frame_size,bufsize);
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fc_usb->iso_buffer = pci_alloc_consistent(NULL,bufsize,&fc_usb->dma_addr);
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if (fc_usb->iso_buffer == NULL)
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return -ENOMEM;
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memset(fc_usb->iso_buffer, 0, bufsize);
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fc_usb->buffer_size = bufsize;
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/* creating iso urbs */
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for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
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if (!(fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,GFP_ATOMIC))) {
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ret = -ENOMEM;
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goto urb_error;
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}
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/* initialising and submitting iso urbs */
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for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
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int frame_offset = 0;
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struct urb *urb = fc_usb->iso_urb[i];
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deb_ts("initializing and submitting urb no. %d (buf_offset: %d).\n",i,buffer_offset);
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urb->dev = fc_usb->udev;
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urb->context = fc_usb;
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urb->complete = flexcop_usb_urb_complete;
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urb->pipe = B2C2_USB_DATA_PIPE;
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urb->transfer_flags = URB_ISO_ASAP;
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urb->interval = 1;
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urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
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urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
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urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
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buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
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for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
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deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",i,j,frame_offset);
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urb->iso_frame_desc[j].offset = frame_offset;
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urb->iso_frame_desc[j].length = frame_size;
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frame_offset += frame_size;
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}
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if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
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err("submitting urb %d failed with %d.",i,ret);
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goto urb_error;
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}
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deb_ts("submitted urb no. %d.\n",i);
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}
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/* SRAM */
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flexcop_sram_set_dest(fc_usb->fc_dev,FC_SRAM_DEST_MEDIA | FC_SRAM_DEST_NET |
|
|
FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_WAN_USB);
|
|
flexcop_wan_set_speed(fc_usb->fc_dev,FC_WAN_SPEED_8MBITS);
|
|
flexcop_sram_ctrl(fc_usb->fc_dev,1,1,1);
|
|
|
|
ret = 0;
|
|
goto success;
|
|
urb_error:
|
|
flexcop_usb_transfer_exit(fc_usb);
|
|
success:
|
|
return ret;
|
|
}
|
|
|
|
static int flexcop_usb_init(struct flexcop_usb *fc_usb)
|
|
{
|
|
/* use the alternate setting with the larges buffer */
|
|
usb_set_interface(fc_usb->udev,0,1);
|
|
switch (fc_usb->udev->speed) {
|
|
case USB_SPEED_LOW:
|
|
err("cannot handle USB speed because it is to sLOW.");
|
|
return -ENODEV;
|
|
break;
|
|
case USB_SPEED_FULL:
|
|
info("running at FULL speed.");
|
|
break;
|
|
case USB_SPEED_HIGH:
|
|
info("running at HIGH speed.");
|
|
break;
|
|
case USB_SPEED_UNKNOWN: /* fall through */
|
|
default:
|
|
err("cannot handle USB speed because it is unkown.");
|
|
return -ENODEV;
|
|
}
|
|
usb_set_intfdata(fc_usb->uintf, fc_usb);
|
|
return 0;
|
|
}
|
|
|
|
static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
|
|
{
|
|
usb_set_intfdata(fc_usb->uintf, NULL);
|
|
}
|
|
|
|
static int flexcop_usb_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
struct flexcop_usb *fc_usb = NULL;
|
|
struct flexcop_device *fc = NULL;
|
|
int ret;
|
|
|
|
if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
|
|
err("out of memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* general flexcop init */
|
|
fc_usb = fc->bus_specific;
|
|
fc_usb->fc_dev = fc;
|
|
|
|
fc->read_ibi_reg = flexcop_usb_read_ibi_reg;
|
|
fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
|
|
fc->i2c_request = flexcop_usb_i2c_request;
|
|
fc->get_mac_addr = flexcop_usb_get_mac_addr;
|
|
|
|
fc->stream_control = flexcop_usb_stream_control;
|
|
|
|
fc->pid_filtering = 1;
|
|
fc->bus_type = FC_USB;
|
|
|
|
fc->dev = &udev->dev;
|
|
fc->owner = THIS_MODULE;
|
|
|
|
/* bus specific part */
|
|
fc_usb->udev = udev;
|
|
fc_usb->uintf = intf;
|
|
if ((ret = flexcop_usb_init(fc_usb)) != 0)
|
|
goto err_kfree;
|
|
|
|
/* init flexcop */
|
|
if ((ret = flexcop_device_initialize(fc)) != 0)
|
|
goto err_usb_exit;
|
|
|
|
/* xfer init */
|
|
if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
|
|
goto err_fc_exit;
|
|
|
|
info("%s successfully initialized and connected.",DRIVER_NAME);
|
|
ret = 0;
|
|
goto success;
|
|
err_fc_exit:
|
|
flexcop_device_exit(fc);
|
|
err_usb_exit:
|
|
flexcop_usb_exit(fc_usb);
|
|
err_kfree:
|
|
flexcop_device_kfree(fc);
|
|
success:
|
|
return ret;
|
|
}
|
|
|
|
static void flexcop_usb_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
|
|
flexcop_usb_transfer_exit(fc_usb);
|
|
flexcop_device_exit(fc_usb->fc_dev);
|
|
flexcop_usb_exit(fc_usb);
|
|
flexcop_device_kfree(fc_usb->fc_dev);
|
|
info("%s successfully deinitialized and disconnected.",DRIVER_NAME);
|
|
}
|
|
|
|
static struct usb_device_id flexcop_usb_table [] = {
|
|
{ USB_DEVICE(0x0af7, 0x0101) },
|
|
{ }
|
|
};
|
|
|
|
/* usb specific object needed to register this driver with the usb subsystem */
|
|
static struct usb_driver flexcop_usb_driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "b2c2_flexcop_usb",
|
|
.probe = flexcop_usb_probe,
|
|
.disconnect = flexcop_usb_disconnect,
|
|
.id_table = flexcop_usb_table,
|
|
};
|
|
|
|
/* module stuff */
|
|
static int __init flexcop_usb_module_init(void)
|
|
{
|
|
int result;
|
|
if ((result = usb_register(&flexcop_usb_driver))) {
|
|
err("usb_register failed. (%d)",result);
|
|
return result;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit flexcop_usb_module_exit(void)
|
|
{
|
|
/* deregister this driver from the USB subsystem */
|
|
usb_deregister(&flexcop_usb_driver);
|
|
}
|
|
|
|
module_init(flexcop_usb_module_init);
|
|
module_exit(flexcop_usb_module_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_NAME);
|
|
MODULE_LICENSE("GPL");
|