cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/usb/dvb-usb/vp702x.c

/* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S
 * receiver.
 *
 * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
 *                    Metzler Brothers Systementwicklung GbR
 *
 * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@posteo.de>
 *
 * Thanks to Twinhan who kindly provided hardware and information.
 *
 *      This program is free software; you can redistribute it and/or modify it
 *      under the terms of the GNU General Public License as published by the Free
 *      Software Foundation, version 2.
 *
 * see Documentation/dvb/README.dvb-usb for more information
 */
#include "vp702x.h"
#include <linux/mutex.h>

/* debug */

int dvb_usb_vp702x_debug;
module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);


DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);


struct vp702x_adapter_state {
	
int pid_filter_count;
	
int pid_filter_can_bypass;
	
u8  pid_filter_state;
};


static int vp702x_usb_in_op_unlocked(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) { int ret; ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, USB_TYPE_VENDOR | USB_DIR_IN, value, index, b, blen, 2000); if (ret < 0) { warn("usb in operation failed. (%d)", ret); ret = -EIO; } else ret = 0; deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index); debug_dump(b,blen,deb_xfer); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher11098.21%266.67%
florian micklerflorian mickler21.79%133.33%
Total112100.00%3100.00%


int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) { int ret; mutex_lock(&d->usb_mutex); ret = vp702x_usb_in_op_unlocked(d, req, value, index, b, blen); mutex_unlock(&d->usb_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler6498.46%150.00%
patrick boettcherpatrick boettcher11.54%150.00%
Total65100.00%2100.00%


static int vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) { int ret; deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index); debug_dump(b,blen,deb_xfer); if ((ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0), req, USB_TYPE_VENDOR | USB_DIR_OUT, value,index,b,blen, 2000)) != blen) { warn("usb out operation failed. (%d)",ret); return -EIO; } else return 0; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher10497.20%250.00%
florian micklerflorian mickler21.87%125.00%
mauro carvalho chehabmauro carvalho chehab10.93%125.00%
Total107100.00%4100.00%


static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) { int ret; mutex_lock(&d->usb_mutex); ret = vp702x_usb_out_op_unlocked(d, req, value, index, b, blen); mutex_unlock(&d->usb_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler6598.48%150.00%
mauro carvalho chehabmauro carvalho chehab11.52%150.00%
Total66100.00%2100.00%


int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec) { int ret; if ((ret = mutex_lock_interruptible(&d->usb_mutex))) return ret; ret = vp702x_usb_out_op_unlocked(d, REQUEST_OUT, 0, 0, o, olen); msleep(msec); ret = vp702x_usb_in_op_unlocked(d, REQUEST_IN, 0, 0, i, ilen); mutex_unlock(&d->usb_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher9193.81%250.00%
ingo molnaringo molnar44.12%125.00%
florian micklerflorian mickler22.06%125.00%
Total97100.00%4100.00%


static int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o, int olen, u8 *i, int ilen, int msec) { struct vp702x_device_state *st = d->priv; int ret = 0; u8 *buf; int buflen = max(olen + 2, ilen + 1); ret = mutex_lock_interruptible(&st->buf_mutex); if (ret < 0) return ret; if (buflen > st->buf_len) { buf = kmalloc(buflen, GFP_KERNEL); if (!buf) { mutex_unlock(&st->buf_mutex); return -ENOMEM; } info("successfully reallocated a bigger buffer"); kfree(st->buf); st->buf = buf; st->buf_len = buflen; } else { buf = st->buf; } buf[0] = 0x00; buf[1] = cmd; memcpy(&buf[2], o, olen); ret = vp702x_usb_inout_op(d, buf, olen+2, buf, ilen+1, msec); if (ret == 0) memcpy(i, &buf[1], ilen); mutex_unlock(&st->buf_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler12855.41%250.00%
patrick boettcherpatrick boettcher10244.16%125.00%
adrian bunkadrian bunk10.43%125.00%
Total231100.00%4100.00%


static int vp702x_set_pld_mode(struct dvb_usb_adapter *adap, u8 bypass) { int ret; struct vp702x_device_state *st = adap->dev->priv; u8 *buf; mutex_lock(&st->buf_mutex); buf = st->buf; memset(buf, 0, 16); ret = vp702x_usb_in_op(adap->dev, 0xe0, (bypass << 8) | 0x0e, 0, buf, 16); mutex_unlock(&st->buf_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler5257.14%240.00%
patrick boettcherpatrick boettcher3942.86%360.00%
Total91100.00%5100.00%


static int vp702x_set_pld_state(struct dvb_usb_adapter *adap, u8 state) { int ret; struct vp702x_device_state *st = adap->dev->priv; u8 *buf; mutex_lock(&st->buf_mutex); buf = st->buf; memset(buf, 0, 16); ret = vp702x_usb_in_op(adap->dev, 0xe0, (state << 8) | 0x0f, 0, buf, 16); mutex_unlock(&st->buf_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler5257.14%250.00%
patrick boettcherpatrick boettcher3942.86%250.00%
Total91100.00%4100.00%


static int vp702x_set_pid(struct dvb_usb_adapter *adap, u16 pid, u8 id, int onoff) { struct vp702x_adapter_state *st = adap->priv; struct vp702x_device_state *dst = adap->dev->priv; u8 *buf; if (onoff) st->pid_filter_state |= (1 << id); else { st->pid_filter_state &= ~(1 << id); pid = 0xffff; } id = 0x10 + id*2; vp702x_set_pld_state(adap, st->pid_filter_state); mutex_lock(&dst->buf_mutex); buf = dst->buf; memset(buf, 0, 16); vp702x_usb_in_op(adap->dev, 0xe0, (((pid >> 8) & 0xff) << 8) | (id), 0, buf, 16); vp702x_usb_in_op(adap->dev, 0xe0, (((pid ) & 0xff) << 8) | (id+1), 0, buf, 16); mutex_unlock(&dst->buf_mutex); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher14977.20%350.00%
florian micklerflorian mickler4422.80%350.00%
Total193100.00%6100.00%


static int vp702x_init_pid_filter(struct dvb_usb_adapter *adap) { struct vp702x_adapter_state *st = adap->priv; struct vp702x_device_state *dst = adap->dev->priv; int i; u8 *b; st->pid_filter_count = 8; st->pid_filter_can_bypass = 1; st->pid_filter_state = 0x00; vp702x_set_pld_mode(adap, 1); /* bypass */ for (i = 0; i < st->pid_filter_count; i++) vp702x_set_pid(adap, 0xffff, i, 1); mutex_lock(&dst->buf_mutex); b = dst->buf; memset(b, 0, 10); vp702x_usb_in_op(adap->dev, 0xb5, 3, 0, b, 10); vp702x_usb_in_op(adap->dev, 0xb5, 0, 0, b, 10); vp702x_usb_in_op(adap->dev, 0xb5, 1, 0, b, 10); mutex_unlock(&dst->buf_mutex); /*vp702x_set_pld_mode(d, 0); // filter */ return 0; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher13073.86%240.00%
florian micklerflorian mickler4626.14%360.00%
Total176100.00%5100.00%


static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher17100.00%2100.00%
Total17100.00%2100.00%

/* keys for the enclosed remote control */ static struct rc_map_table rc_map_vp702x_table[] = { { 0x0001, KEY_1 }, { 0x0002, KEY_2 }, }; /* remote control stuff (does not work with my box) */
static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state) { /* remove the following return to enabled remote querying */ #if 0 u8 *key; int i; key = kmalloc(10, GFP_KERNEL); if (!key) return -ENOMEM; vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10); deb_rc("remote query key: %x %d\n",key[1],key[1]); if (key[1] == 0x44) { *state = REMOTE_NO_KEY_PRESSED; kfree(key); return 0; } for (i = 0; i < ARRAY_SIZE(rc_map_vp702x_table); i++) if (rc5_custom(&rc_map_vp702x_table[i]) == key[1]) { *state = REMOTE_KEY_PRESSED; *event = rc_map_vp702x_table[i].keycode; break; } kfree(key); #endif return 0; }

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PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher2482.76%150.00%
mauro carvalho chehabmauro carvalho chehab517.24%150.00%
Total29100.00%2100.00%


static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6]) { u8 i, *buf; struct vp702x_device_state *st = d->priv; mutex_lock(&st->buf_mutex); buf = st->buf; for (i = 6; i < 12; i++) vp702x_usb_in_op(d, READ_EEPROM_REQ, i, 1, &buf[i - 6], 1); memcpy(mac, buf, 6); mutex_unlock(&st->buf_mutex); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher5656.00%250.00%
florian micklerflorian mickler4444.00%250.00%
Total100100.00%4100.00%


static int vp702x_frontend_attach(struct dvb_usb_adapter *adap) { u8 buf[10] = { 0 }; vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 0, 7, NULL, 0); if (vp702x_usb_inout_cmd(adap->dev, GET_SYSTEM_STRING, NULL, 0, buf, 10, 10)) return -EIO; buf[9] = '\0'; info("system string: %s",&buf[1]); vp702x_init_pid_filter(adap); adap->fe_adap[0].fe = vp702x_fe_attach(adap->dev); vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 1, 7, NULL, 0); return 0; }

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PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher11695.08%360.00%
antti palosaariantti palosaari32.46%120.00%
michael krufkymichael krufky32.46%120.00%
Total122100.00%5100.00%

static struct dvb_usb_device_properties vp702x_properties;
static int vp702x_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct dvb_usb_device *d; struct vp702x_device_state *st; int ret; ret = dvb_usb_device_init(intf, &vp702x_properties, THIS_MODULE, &d, adapter_nr); if (ret) goto out; st = d->priv; st->buf_len = 16; st->buf = kmalloc(st->buf_len, GFP_KERNEL); if (!st->buf) { ret = -ENOMEM; dvb_usb_device_exit(intf); goto out; } mutex_init(&st->buf_mutex); out: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler8473.68%125.00%
patrick boettcherpatrick boettcher2824.56%250.00%
janne grunaujanne grunau21.75%125.00%
Total114100.00%4100.00%


static void vp702x_usb_disconnect(struct usb_interface *intf) { struct dvb_usb_device *d = usb_get_intfdata(intf); struct vp702x_device_state *st = d->priv; mutex_lock(&st->buf_mutex); kfree(st->buf); mutex_unlock(&st->buf_mutex); dvb_usb_device_exit(intf); }

Contributors

PersonTokensPropCommitsCommitProp
florian micklerflorian mickler58100.00%1100.00%
Total58100.00%1100.00%

static struct usb_device_id vp702x_usb_table [] = { { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) }, // { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) }, // { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) }, { 0 }, }; MODULE_DEVICE_TABLE(usb, vp702x_usb_table); static struct dvb_usb_device_properties vp702x_properties = { .usb_ctrl = CYPRESS_FX2, .firmware = "dvb-usb-vp702x-02.fw", .no_reconnect = 1, .size_of_priv = sizeof(struct vp702x_device_state), .num_adapters = 1, .adapter = { { .num_frontends = 1, .fe = {{ .caps = DVB_USB_ADAP_RECEIVES_204_BYTE_TS, .streaming_ctrl = vp702x_streaming_ctrl, .frontend_attach = vp702x_frontend_attach, /* parameter for the MPEG2-data transfer */ .stream = { .type = USB_BULK, .count = 10, .endpoint = 0x02, .u = { .bulk = { .buffersize = 4096, } } }, }}, .size_of_priv = sizeof(struct vp702x_adapter_state), } }, .read_mac_address = vp702x_read_mac_addr, .rc.legacy = { .rc_map_table = rc_map_vp702x_table, .rc_map_size = ARRAY_SIZE(rc_map_vp702x_table), .rc_interval = 400, .rc_query = vp702x_rc_query, }, .num_device_descs = 1, .devices = { { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)", .cold_ids = { &vp702x_usb_table[0], NULL }, .warm_ids = { NULL }, }, /* { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)", .cold_ids = { &vp702x_usb_table[2], NULL }, .warm_ids = { &vp702x_usb_table[3], NULL }, }, */ { NULL }, } }; /* usb specific object needed to register this driver with the usb subsystem */ static struct usb_driver vp702x_usb_driver = { .name = "dvb_usb_vp702x", .probe = vp702x_usb_probe, .disconnect = vp702x_usb_disconnect, .id_table = vp702x_usb_table, }; module_usb_driver(vp702x_usb_driver); MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>"); MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones"); MODULE_VERSION("1.0"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher131765.20%626.09%
florian micklerflorian mickler64932.13%626.09%
mauro carvalho chehabmauro carvalho chehab221.09%521.74%
michael krufkymichael krufky150.74%14.35%
janne grunaujanne grunau70.35%14.35%
ingo molnaringo molnar40.20%14.35%
antti palosaariantti palosaari30.15%14.35%
greg kroah-hartmangreg kroah-hartman20.10%14.35%
adrian bunkadrian bunk10.05%14.35%
Total2020100.00%23100.00%
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