diff options
Diffstat (limited to 'drivers/media/dvb/firesat/avc_api.c')
| -rw-r--r-- | drivers/media/dvb/firesat/avc_api.c | 121 |
1 files changed, 47 insertions, 74 deletions
diff --git a/drivers/media/dvb/firesat/avc_api.c b/drivers/media/dvb/firesat/avc_api.c index 3c8e7e3dacc..6337f9f21d0 100644 --- a/drivers/media/dvb/firesat/avc_api.c +++ b/drivers/media/dvb/firesat/avc_api.c @@ -1,9 +1,9 @@ /* - * FireSAT AVC driver + * FireDTV driver (formerly known as FireSAT) * - * Copyright (c) 2004 Andreas Monitzer <andy@monitzer.com> - * Copyright (c) 2008 Ben Backx <ben@bbackx.com> - * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se> + * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com> + * Copyright (C) 2008 Ben Backx <ben@bbackx.com> + * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -11,13 +11,20 @@ * the License, or (at your option) any later version. */ -#include "firesat.h" +#include <linux/crc32.h> +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/moduleparam.h> +#include <linux/mutex.h> +#include <linux/wait.h> +#include <linux/workqueue.h> +#include <asm/atomic.h> + #include <ieee1394_transactions.h> #include <nodemgr.h> -#include <asm/byteorder.h> -#include <linux/delay.h> -#include <linux/crc32.h> + #include "avc_api.h" +#include "firesat.h" #include "firesat-rc.h" #define RESPONSE_REGISTER 0xFFFFF0000D00ULL @@ -28,8 +35,6 @@ static unsigned int avc_comm_debug = 0; module_param(avc_comm_debug, int, 0644); MODULE_PARM_DESC(avc_comm_debug, "debug logging level [0..2] of AV/C communication, default is 0 (no)"); -static int __AVCRegisterRemoteControl(struct firesat*firesat, int internal); - /* Frees an allocated packet */ static void avc_free_packet(struct hpsb_packet *packet) { @@ -232,67 +237,39 @@ static int __AVCWrite(struct firesat *firesat, const AVCCmdFrm *CmdFrm, return 0; } -int AVCWrite(struct firesat*firesat, const AVCCmdFrm *CmdFrm, AVCRspFrm *RspFrm) { +int AVCWrite(struct firesat*firesat, const AVCCmdFrm *CmdFrm, AVCRspFrm *RspFrm) +{ int ret; - if(down_interruptible(&firesat->avc_sem)) + + if (mutex_lock_interruptible(&firesat->avc_mutex)) return -EINTR; ret = __AVCWrite(firesat, CmdFrm, RspFrm); - up(&firesat->avc_sem); + mutex_unlock(&firesat->avc_mutex); return ret; } -static void do_schedule_remotecontrol(unsigned long ignored); -DECLARE_TASKLET(schedule_remotecontrol, do_schedule_remotecontrol, 0); - -static void do_schedule_remotecontrol(unsigned long ignored) { - struct firesat *firesat; - unsigned long flags; - - spin_lock_irqsave(&firesat_list_lock, flags); - list_for_each_entry(firesat,&firesat_list,list) { - if(atomic_read(&firesat->reschedule_remotecontrol) == 1) { - if(down_trylock(&firesat->avc_sem)) - tasklet_schedule(&schedule_remotecontrol); - else { - if(__AVCRegisterRemoteControl(firesat, 1) == 0) - atomic_set(&firesat->reschedule_remotecontrol, 0); - else - tasklet_schedule(&schedule_remotecontrol); - - up(&firesat->avc_sem); - } +int AVCRecv(struct firesat *firesat, u8 *data, size_t length) +{ + AVCRspFrm *RspFrm = (AVCRspFrm *)data; + + if (length >= 8 && + RspFrm->operand[0] == SFE_VENDOR_DE_COMPANYID_0 && + RspFrm->operand[1] == SFE_VENDOR_DE_COMPANYID_1 && + RspFrm->operand[2] == SFE_VENDOR_DE_COMPANYID_2 && + RspFrm->operand[3] == SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL) { + if (RspFrm->resp == CHANGED) { + firesat_handle_rc(RspFrm->operand[4] << 8 | + RspFrm->operand[5]); + schedule_work(&firesat->remote_ctrl_work); + } else if (RspFrm->resp != INTERIM) { + printk(KERN_INFO "firedtv: remote control result = " + "%d\n", RspFrm->resp); } - } - spin_unlock_irqrestore(&firesat_list_lock, flags); -} - -int AVCRecv(struct firesat *firesat, u8 *data, size_t length) { -// printk(KERN_INFO "%s\n",__func__); - - // remote control handling - -#if 0 - AVCRspFrm *RspFrm = (AVCRspFrm*)data; - - if(/*RspFrm->length >= 8 && ###*/ - ((RspFrm->operand[0] == SFE_VENDOR_DE_COMPANYID_0 && - RspFrm->operand[1] == SFE_VENDOR_DE_COMPANYID_1 && - RspFrm->operand[2] == SFE_VENDOR_DE_COMPANYID_2)) && - RspFrm->operand[3] == SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL) { - if(RspFrm->resp == CHANGED) { -// printk(KERN_INFO "%s: code = %02x %02x\n",__func__,RspFrm->operand[4],RspFrm->operand[5]); - firesat_got_remotecontrolcode((((u16)RspFrm->operand[4]) << 8) | ((u16)RspFrm->operand[5])); - - // schedule - atomic_set(&firesat->reschedule_remotecontrol, 1); - tasklet_schedule(&schedule_remotecontrol); - } else if(RspFrm->resp != INTERIM) - printk(KERN_INFO "%s: remote control result = %d\n",__func__, RspFrm->resp); return 0; } -#endif + if(atomic_read(&firesat->avc_reply_received) == 1) { printk(KERN_ERR "%s: received out-of-order AVC response, " "ignored\n",__func__); @@ -718,7 +695,8 @@ int AVCTuner_GetTS(struct firesat *firesat){ return 0; } -int AVCIdentifySubunit(struct firesat *firesat, unsigned char *systemId, int *transport) { +int AVCIdentifySubunit(struct firesat *firesat) +{ AVCCmdFrm CmdFrm; AVCRspFrm RspFrm; @@ -752,8 +730,6 @@ int AVCIdentifySubunit(struct firesat *firesat, unsigned char *systemId, int *tr printk(KERN_ERR "%s: Invalid response length\n", __func__); return -EINVAL; } - if(systemId) - *systemId = RspFrm.operand[7]; return 0; } @@ -901,7 +877,7 @@ int AVCSubUnitInfo(struct firesat *firesat, char *subunitcount) return 0; } -static int __AVCRegisterRemoteControl(struct firesat*firesat, int internal) +int AVCRegisterRemoteControl(struct firesat *firesat) { AVCCmdFrm CmdFrm; @@ -922,19 +898,16 @@ static int __AVCRegisterRemoteControl(struct firesat*firesat, int internal) CmdFrm.length = 8; - if(internal) { - if(__AVCWrite(firesat,&CmdFrm,NULL) < 0) - return -EIO; - } else - if(AVCWrite(firesat,&CmdFrm,NULL) < 0) - return -EIO; - - return 0; + return AVCWrite(firesat, &CmdFrm, NULL); } -int AVCRegisterRemoteControl(struct firesat*firesat) +void avc_remote_ctrl_work(struct work_struct *work) { - return __AVCRegisterRemoteControl(firesat, 0); + struct firesat *firesat = + container_of(work, struct firesat, remote_ctrl_work); + + /* Should it be rescheduled in failure cases? */ + AVCRegisterRemoteControl(firesat); } int AVCTuner_Host2Ca(struct firesat *firesat) |