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	Fixed MTP to work with TWRP
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								drivers/media/pci/cx88/cx88-input.c
									
										
									
									
									
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										653
									
								
								drivers/media/pci/cx88/cx88-input.c
									
										
									
									
									
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							|  | @ -0,0 +1,653 @@ | |||
| /*
 | ||||
|  * | ||||
|  * Device driver for GPIO attached remote control interfaces | ||||
|  * on Conexant 2388x based TV/DVB cards. | ||||
|  * | ||||
|  * Copyright (c) 2003 Pavel Machek | ||||
|  * Copyright (c) 2004 Gerd Knorr | ||||
|  * Copyright (c) 2004, 2005 Chris Pascoe | ||||
|  * | ||||
|  * 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; either version 2 of the License, or | ||||
|  * (at your option) any later version. | ||||
|  * | ||||
|  * This program is distributed in the hope that it will be useful, | ||||
|  * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||
|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | ||||
|  * GNU General Public License for more details. | ||||
|  * | ||||
|  * You should have received a copy of the GNU General Public License | ||||
|  * along with this program; if not, write to the Free Software | ||||
|  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||||
|  */ | ||||
| 
 | ||||
| #include <linux/init.h> | ||||
| #include <linux/hrtimer.h> | ||||
| #include <linux/pci.h> | ||||
| #include <linux/slab.h> | ||||
| #include <linux/module.h> | ||||
| 
 | ||||
| #include "cx88.h" | ||||
| #include <media/rc-core.h> | ||||
| 
 | ||||
| #define MODULE_NAME "cx88xx" | ||||
| 
 | ||||
| /* ---------------------------------------------------------------------- */ | ||||
| 
 | ||||
| struct cx88_IR { | ||||
| 	struct cx88_core *core; | ||||
| 	struct rc_dev *dev; | ||||
| 
 | ||||
| 	int users; | ||||
| 
 | ||||
| 	char name[32]; | ||||
| 	char phys[32]; | ||||
| 
 | ||||
| 	/* sample from gpio pin 16 */ | ||||
| 	u32 sampling; | ||||
| 
 | ||||
| 	/* poll external decoder */ | ||||
| 	int polling; | ||||
| 	struct hrtimer timer; | ||||
| 	u32 gpio_addr; | ||||
| 	u32 last_gpio; | ||||
| 	u32 mask_keycode; | ||||
| 	u32 mask_keydown; | ||||
| 	u32 mask_keyup; | ||||
| }; | ||||
| 
 | ||||
| static unsigned ir_samplerate = 4; | ||||
| module_param(ir_samplerate, uint, 0444); | ||||
| MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4"); | ||||
| 
 | ||||
| static int ir_debug; | ||||
| module_param(ir_debug, int, 0644);	/* debug level [IR] */ | ||||
| MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); | ||||
| 
 | ||||
| #define ir_dprintk(fmt, arg...)	if (ir_debug) \ | ||||
| 	printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg) | ||||
| 
 | ||||
| #define dprintk(fmt, arg...)	if (ir_debug) \ | ||||
| 	printk(KERN_DEBUG "cx88 IR: " fmt , ##arg) | ||||
| 
 | ||||
| /* ---------------------------------------------------------------------- */ | ||||
| 
 | ||||
| static void cx88_ir_handle_key(struct cx88_IR *ir) | ||||
| { | ||||
| 	struct cx88_core *core = ir->core; | ||||
| 	u32 gpio, data, auxgpio; | ||||
| 
 | ||||
| 	/* read gpio value */ | ||||
| 	gpio = cx_read(ir->gpio_addr); | ||||
| 	switch (core->boardnr) { | ||||
| 	case CX88_BOARD_NPGTECH_REALTV_TOP10FM: | ||||
| 		/* This board apparently uses a combination of 2 GPIO
 | ||||
| 		   to represent the keys. Additionally, the second GPIO | ||||
| 		   can be used for parity. | ||||
| 
 | ||||
| 		   Example: | ||||
| 
 | ||||
| 		   for key "5" | ||||
| 			gpio = 0x758, auxgpio = 0xe5 or 0xf5 | ||||
| 		   for key "Power" | ||||
| 			gpio = 0x758, auxgpio = 0xed or 0xfd | ||||
| 		 */ | ||||
| 
 | ||||
| 		auxgpio = cx_read(MO_GP1_IO); | ||||
| 		/* Take out the parity part */ | ||||
| 		gpio=(gpio & 0x7fd) + (auxgpio & 0xef); | ||||
| 		break; | ||||
| 	case CX88_BOARD_WINFAST_DTV1000: | ||||
| 	case CX88_BOARD_WINFAST_DTV1800H: | ||||
| 	case CX88_BOARD_WINFAST_DTV1800H_XC4000: | ||||
| 	case CX88_BOARD_WINFAST_DTV2000H_PLUS: | ||||
| 	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL: | ||||
| 	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36: | ||||
| 	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43: | ||||
| 		gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900); | ||||
| 		auxgpio = gpio; | ||||
| 		break; | ||||
| 	default: | ||||
| 		auxgpio = gpio; | ||||
| 	} | ||||
| 	if (ir->polling) { | ||||
| 		if (ir->last_gpio == auxgpio) | ||||
| 			return; | ||||
| 		ir->last_gpio = auxgpio; | ||||
| 	} | ||||
| 
 | ||||
| 	/* extract data */ | ||||
| 	data = ir_extract_bits(gpio, ir->mask_keycode); | ||||
| 	ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n", | ||||
| 		   gpio, data, | ||||
| 		   ir->polling ? "poll" : "irq", | ||||
| 		   (gpio & ir->mask_keydown) ? " down" : "", | ||||
| 		   (gpio & ir->mask_keyup) ? " up" : ""); | ||||
| 
 | ||||
| 	if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) { | ||||
| 		u32 gpio_key = cx_read(MO_GP0_IO); | ||||
| 
 | ||||
| 		data = (data << 4) | ((gpio_key & 0xf0) >> 4); | ||||
| 
 | ||||
| 		rc_keydown(ir->dev, RC_TYPE_UNKNOWN, data, 0); | ||||
| 
 | ||||
| 	} else if (ir->core->boardnr == CX88_BOARD_PROLINK_PLAYTVPVR || | ||||
| 		   ir->core->boardnr == CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO) { | ||||
| 		/* bit cleared on keydown, NEC scancode, 0xAAAACC, A = 0x866b */ | ||||
| 		u16 addr; | ||||
| 		u8 cmd; | ||||
| 		u32 scancode; | ||||
| 
 | ||||
| 		addr = (data >> 8) & 0xffff; | ||||
| 		cmd  = (data >> 0) & 0x00ff; | ||||
| 		scancode = RC_SCANCODE_NECX(addr, cmd); | ||||
| 
 | ||||
| 		if (0 == (gpio & ir->mask_keyup)) | ||||
| 			rc_keydown_notimeout(ir->dev, RC_TYPE_NEC, scancode, 0); | ||||
| 		else | ||||
| 			rc_keyup(ir->dev); | ||||
| 
 | ||||
| 	} else if (ir->mask_keydown) { | ||||
| 		/* bit set on keydown */ | ||||
| 		if (gpio & ir->mask_keydown) | ||||
| 			rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0); | ||||
| 		else | ||||
| 			rc_keyup(ir->dev); | ||||
| 
 | ||||
| 	} else if (ir->mask_keyup) { | ||||
| 		/* bit cleared on keydown */ | ||||
| 		if (0 == (gpio & ir->mask_keyup)) | ||||
| 			rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0); | ||||
| 		else | ||||
| 			rc_keyup(ir->dev); | ||||
| 
 | ||||
| 	} else { | ||||
| 		/* can't distinguish keydown/up :-/ */ | ||||
| 		rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0); | ||||
| 		rc_keyup(ir->dev); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer) | ||||
| { | ||||
| 	unsigned long missed; | ||||
| 	struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer); | ||||
| 
 | ||||
| 	cx88_ir_handle_key(ir); | ||||
| 	missed = hrtimer_forward_now(&ir->timer, | ||||
| 				     ktime_set(0, ir->polling * 1000000)); | ||||
| 	if (missed > 1) | ||||
| 		ir_dprintk("Missed ticks %ld\n", missed - 1); | ||||
| 
 | ||||
| 	return HRTIMER_RESTART; | ||||
| } | ||||
| 
 | ||||
| static int __cx88_ir_start(void *priv) | ||||
| { | ||||
| 	struct cx88_core *core = priv; | ||||
| 	struct cx88_IR *ir; | ||||
| 
 | ||||
| 	if (!core || !core->ir) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
| 	ir = core->ir; | ||||
| 
 | ||||
| 	if (ir->polling) { | ||||
| 		hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); | ||||
| 		ir->timer.function = cx88_ir_work; | ||||
| 		hrtimer_start(&ir->timer, | ||||
| 			      ktime_set(0, ir->polling * 1000000), | ||||
| 			      HRTIMER_MODE_REL); | ||||
| 	} | ||||
| 	if (ir->sampling) { | ||||
| 		core->pci_irqmask |= PCI_INT_IR_SMPINT; | ||||
| 		cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate); /* samplerate */ | ||||
| 		cx_write(MO_DDSCFG_IO, 0x5); /* enable */ | ||||
| 	} | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static void __cx88_ir_stop(void *priv) | ||||
| { | ||||
| 	struct cx88_core *core = priv; | ||||
| 	struct cx88_IR *ir; | ||||
| 
 | ||||
| 	if (!core || !core->ir) | ||||
| 		return; | ||||
| 
 | ||||
| 	ir = core->ir; | ||||
| 	if (ir->sampling) { | ||||
| 		cx_write(MO_DDSCFG_IO, 0x0); | ||||
| 		core->pci_irqmask &= ~PCI_INT_IR_SMPINT; | ||||
| 	} | ||||
| 
 | ||||
| 	if (ir->polling) | ||||
| 		hrtimer_cancel(&ir->timer); | ||||
| } | ||||
| 
 | ||||
| int cx88_ir_start(struct cx88_core *core) | ||||
| { | ||||
| 	if (core->ir->users) | ||||
| 		return __cx88_ir_start(core); | ||||
| 
 | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| void cx88_ir_stop(struct cx88_core *core) | ||||
| { | ||||
| 	if (core->ir->users) | ||||
| 		__cx88_ir_stop(core); | ||||
| } | ||||
| 
 | ||||
| static int cx88_ir_open(struct rc_dev *rc) | ||||
| { | ||||
| 	struct cx88_core *core = rc->priv; | ||||
| 
 | ||||
| 	core->ir->users++; | ||||
| 	return __cx88_ir_start(core); | ||||
| } | ||||
| 
 | ||||
| static void cx88_ir_close(struct rc_dev *rc) | ||||
| { | ||||
| 	struct cx88_core *core = rc->priv; | ||||
| 
 | ||||
| 	core->ir->users--; | ||||
| 	if (!core->ir->users) | ||||
| 		__cx88_ir_stop(core); | ||||
| } | ||||
| 
 | ||||
| /* ---------------------------------------------------------------------- */ | ||||
| 
 | ||||
| int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) | ||||
| { | ||||
| 	struct cx88_IR *ir; | ||||
| 	struct rc_dev *dev; | ||||
| 	char *ir_codes = NULL; | ||||
| 	u64 rc_type = RC_BIT_OTHER; | ||||
| 	int err = -ENOMEM; | ||||
| 	u32 hardware_mask = 0;	/* For devices with a hardware mask, when
 | ||||
| 				 * used with a full-code IR table | ||||
| 				 */ | ||||
| 
 | ||||
| 	ir = kzalloc(sizeof(*ir), GFP_KERNEL); | ||||
| 	dev = rc_allocate_device(); | ||||
| 	if (!ir || !dev) | ||||
| 		goto err_out_free; | ||||
| 
 | ||||
| 	ir->dev = dev; | ||||
| 
 | ||||
| 	/* detect & configure */ | ||||
| 	switch (core->boardnr) { | ||||
| 	case CX88_BOARD_DNTV_LIVE_DVB_T: | ||||
| 	case CX88_BOARD_KWORLD_DVB_T: | ||||
| 	case CX88_BOARD_KWORLD_DVB_T_CX22702: | ||||
| 		ir_codes = RC_MAP_DNTV_LIVE_DVB_T; | ||||
| 		ir->gpio_addr = MO_GP1_IO; | ||||
| 		ir->mask_keycode = 0x1f; | ||||
| 		ir->mask_keyup = 0x60; | ||||
| 		ir->polling = 50; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1: | ||||
| 		ir_codes = RC_MAP_CINERGY_1400; | ||||
| 		ir->sampling = 0xeb04; /* address */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_HAUPPAUGE: | ||||
| 	case CX88_BOARD_HAUPPAUGE_DVB_T1: | ||||
| 	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1: | ||||
| 	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1: | ||||
| 	case CX88_BOARD_HAUPPAUGE_HVR1100: | ||||
| 	case CX88_BOARD_HAUPPAUGE_HVR3000: | ||||
| 	case CX88_BOARD_HAUPPAUGE_HVR4000: | ||||
| 	case CX88_BOARD_HAUPPAUGE_HVR4000LITE: | ||||
| 	case CX88_BOARD_PCHDTV_HD3000: | ||||
| 	case CX88_BOARD_PCHDTV_HD5500: | ||||
| 	case CX88_BOARD_HAUPPAUGE_IRONLY: | ||||
| 		ir_codes = RC_MAP_HAUPPAUGE; | ||||
| 		ir->sampling = 1; | ||||
| 		break; | ||||
| 	case CX88_BOARD_WINFAST_DTV2000H: | ||||
| 	case CX88_BOARD_WINFAST_DTV2000H_J: | ||||
| 	case CX88_BOARD_WINFAST_DTV1800H: | ||||
| 	case CX88_BOARD_WINFAST_DTV1800H_XC4000: | ||||
| 	case CX88_BOARD_WINFAST_DTV2000H_PLUS: | ||||
| 		ir_codes = RC_MAP_WINFAST; | ||||
| 		ir->gpio_addr = MO_GP0_IO; | ||||
| 		ir->mask_keycode = 0x8f8; | ||||
| 		ir->mask_keyup = 0x100; | ||||
| 		ir->polling = 50; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_WINFAST2000XP_EXPERT: | ||||
| 	case CX88_BOARD_WINFAST_DTV1000: | ||||
| 	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL: | ||||
| 	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36: | ||||
| 	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43: | ||||
| 		ir_codes = RC_MAP_WINFAST; | ||||
| 		ir->gpio_addr = MO_GP0_IO; | ||||
| 		ir->mask_keycode = 0x8f8; | ||||
| 		ir->mask_keyup = 0x100; | ||||
| 		ir->polling = 1; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_IODATA_GVBCTV7E: | ||||
| 		ir_codes = RC_MAP_IODATA_BCTV7E; | ||||
| 		ir->gpio_addr = MO_GP0_IO; | ||||
| 		ir->mask_keycode = 0xfd; | ||||
| 		ir->mask_keydown = 0x02; | ||||
| 		ir->polling = 5; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_PROLINK_PLAYTVPVR: | ||||
| 	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO: | ||||
| 		/*
 | ||||
| 		 * It seems that this hardware is paired with NEC extended | ||||
| 		 * address 0x866b. So, unfortunately, its usage with other | ||||
| 		 * IR's with different address won't work. Still, there are | ||||
| 		 * other IR's from the same manufacturer that works, like the | ||||
| 		 * 002-T mini RC, provided with newer PV hardware | ||||
| 		 */ | ||||
| 		ir_codes = RC_MAP_PIXELVIEW_MK12; | ||||
| 		rc_type = RC_BIT_NEC; | ||||
| 		ir->gpio_addr = MO_GP1_IO; | ||||
| 		ir->mask_keyup = 0x80; | ||||
| 		ir->polling = 10; /* ms */ | ||||
| 		hardware_mask = 0x3f;	/* Hardware returns only 6 bits from command part */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_PROLINK_PV_8000GT: | ||||
| 	case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME: | ||||
| 		ir_codes = RC_MAP_PIXELVIEW_NEW; | ||||
| 		ir->gpio_addr = MO_GP1_IO; | ||||
| 		ir->mask_keycode = 0x3f; | ||||
| 		ir->mask_keyup = 0x80; | ||||
| 		ir->polling = 1; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_KWORLD_LTV883: | ||||
| 		ir_codes = RC_MAP_PIXELVIEW; | ||||
| 		ir->gpio_addr = MO_GP1_IO; | ||||
| 		ir->mask_keycode = 0x1f; | ||||
| 		ir->mask_keyup = 0x60; | ||||
| 		ir->polling = 1; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_ADSTECH_DVB_T_PCI: | ||||
| 		ir_codes = RC_MAP_ADSTECH_DVB_T_PCI; | ||||
| 		ir->gpio_addr = MO_GP1_IO; | ||||
| 		ir->mask_keycode = 0xbf; | ||||
| 		ir->mask_keyup = 0x40; | ||||
| 		ir->polling = 50; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_MSI_TVANYWHERE_MASTER: | ||||
| 		ir_codes = RC_MAP_MSI_TVANYWHERE; | ||||
| 		ir->gpio_addr = MO_GP1_IO; | ||||
| 		ir->mask_keycode = 0x1f; | ||||
| 		ir->mask_keyup = 0x40; | ||||
| 		ir->polling = 1; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_AVERTV_303: | ||||
| 	case CX88_BOARD_AVERTV_STUDIO_303: | ||||
| 		ir_codes         = RC_MAP_AVERTV_303; | ||||
| 		ir->gpio_addr    = MO_GP2_IO; | ||||
| 		ir->mask_keycode = 0xfb; | ||||
| 		ir->mask_keydown = 0x02; | ||||
| 		ir->polling      = 50; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_OMICOM_SS4_PCI: | ||||
| 	case CX88_BOARD_SATTRADE_ST4200: | ||||
| 	case CX88_BOARD_TBS_8920: | ||||
| 	case CX88_BOARD_TBS_8910: | ||||
| 	case CX88_BOARD_PROF_7300: | ||||
| 	case CX88_BOARD_PROF_7301: | ||||
| 	case CX88_BOARD_PROF_6200: | ||||
| 		ir_codes = RC_MAP_TBS_NEC; | ||||
| 		ir->sampling = 0xff00; /* address */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_TEVII_S464: | ||||
| 	case CX88_BOARD_TEVII_S460: | ||||
| 	case CX88_BOARD_TEVII_S420: | ||||
| 		ir_codes = RC_MAP_TEVII_NEC; | ||||
| 		ir->sampling = 0xff00; /* address */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO: | ||||
| 		ir_codes         = RC_MAP_DNTV_LIVE_DVBT_PRO; | ||||
| 		ir->sampling     = 0xff00; /* address */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_NORWOOD_MICRO: | ||||
| 		ir_codes         = RC_MAP_NORWOOD; | ||||
| 		ir->gpio_addr    = MO_GP1_IO; | ||||
| 		ir->mask_keycode = 0x0e; | ||||
| 		ir->mask_keyup   = 0x80; | ||||
| 		ir->polling      = 50; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_NPGTECH_REALTV_TOP10FM: | ||||
| 		ir_codes         = RC_MAP_NPGTECH; | ||||
| 		ir->gpio_addr    = MO_GP0_IO; | ||||
| 		ir->mask_keycode = 0xfa; | ||||
| 		ir->polling      = 50; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_PINNACLE_PCTV_HD_800i: | ||||
| 		ir_codes         = RC_MAP_PINNACLE_PCTV_HD; | ||||
| 		ir->sampling     = 1; | ||||
| 		break; | ||||
| 	case CX88_BOARD_POWERCOLOR_REAL_ANGEL: | ||||
| 		ir_codes         = RC_MAP_POWERCOLOR_REAL_ANGEL; | ||||
| 		ir->gpio_addr    = MO_GP2_IO; | ||||
| 		ir->mask_keycode = 0x7e; | ||||
| 		ir->polling      = 100; /* ms */ | ||||
| 		break; | ||||
| 	case CX88_BOARD_TWINHAN_VP1027_DVBS: | ||||
| 		ir_codes         = RC_MAP_TWINHAN_VP1027_DVBS; | ||||
| 		ir->sampling     = 0xff00; /* address */ | ||||
| 		break; | ||||
| 	} | ||||
| 
 | ||||
| 	if (!ir_codes) { | ||||
| 		err = -ENODEV; | ||||
| 		goto err_out_free; | ||||
| 	} | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * The usage of mask_keycode were very convenient, due to several | ||||
| 	 * reasons. Among others, the scancode tables were using the scancode | ||||
| 	 * as the index elements. So, the less bits it was used, the smaller | ||||
| 	 * the table were stored. After the input changes, the better is to use | ||||
| 	 * the full scancodes, since it allows replacing the IR remote by | ||||
| 	 * another one. Unfortunately, there are still some hardware, like | ||||
| 	 * Pixelview Ultra Pro, where only part of the scancode is sent via | ||||
| 	 * GPIO. So, there's no way to get the full scancode. Due to that, | ||||
| 	 * hardware_mask were introduced here: it represents those hardware | ||||
| 	 * that has such limits. | ||||
| 	 */ | ||||
| 	if (hardware_mask && !ir->mask_keycode) | ||||
| 		ir->mask_keycode = hardware_mask; | ||||
| 
 | ||||
| 	/* init input device */ | ||||
| 	snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name); | ||||
| 	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci)); | ||||
| 
 | ||||
| 	dev->input_name = ir->name; | ||||
| 	dev->input_phys = ir->phys; | ||||
| 	dev->input_id.bustype = BUS_PCI; | ||||
| 	dev->input_id.version = 1; | ||||
| 	if (pci->subsystem_vendor) { | ||||
| 		dev->input_id.vendor = pci->subsystem_vendor; | ||||
| 		dev->input_id.product = pci->subsystem_device; | ||||
| 	} else { | ||||
| 		dev->input_id.vendor = pci->vendor; | ||||
| 		dev->input_id.product = pci->device; | ||||
| 	} | ||||
| 	dev->dev.parent = &pci->dev; | ||||
| 	dev->map_name = ir_codes; | ||||
| 	dev->driver_name = MODULE_NAME; | ||||
| 	dev->priv = core; | ||||
| 	dev->open = cx88_ir_open; | ||||
| 	dev->close = cx88_ir_close; | ||||
| 	dev->scancode_mask = hardware_mask; | ||||
| 
 | ||||
| 	if (ir->sampling) { | ||||
| 		dev->driver_type = RC_DRIVER_IR_RAW; | ||||
| 		dev->timeout = 10 * 1000 * 1000; /* 10 ms */ | ||||
| 	} else { | ||||
| 		dev->driver_type = RC_DRIVER_SCANCODE; | ||||
| 		dev->allowed_protocols = rc_type; | ||||
| 	} | ||||
| 
 | ||||
| 	ir->core = core; | ||||
| 	core->ir = ir; | ||||
| 
 | ||||
| 	/* all done */ | ||||
| 	err = rc_register_device(dev); | ||||
| 	if (err) | ||||
| 		goto err_out_free; | ||||
| 
 | ||||
| 	return 0; | ||||
| 
 | ||||
| err_out_free: | ||||
| 	rc_free_device(dev); | ||||
| 	core->ir = NULL; | ||||
| 	kfree(ir); | ||||
| 	return err; | ||||
| } | ||||
| 
 | ||||
| int cx88_ir_fini(struct cx88_core *core) | ||||
| { | ||||
| 	struct cx88_IR *ir = core->ir; | ||||
| 
 | ||||
| 	/* skip detach on non attached boards */ | ||||
| 	if (NULL == ir) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	cx88_ir_stop(core); | ||||
| 	rc_unregister_device(ir->dev); | ||||
| 	kfree(ir); | ||||
| 
 | ||||
| 	/* done */ | ||||
| 	core->ir = NULL; | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| /* ---------------------------------------------------------------------- */ | ||||
| 
 | ||||
| void cx88_ir_irq(struct cx88_core *core) | ||||
| { | ||||
| 	struct cx88_IR *ir = core->ir; | ||||
| 	u32 samples; | ||||
| 	unsigned todo, bits; | ||||
| 	struct ir_raw_event ev; | ||||
| 
 | ||||
| 	if (!ir || !ir->sampling) | ||||
| 		return; | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * Samples are stored in a 32 bit register, oldest sample in | ||||
| 	 * the msb. A set bit represents space and an unset bit | ||||
| 	 * represents a pulse. | ||||
| 	 */ | ||||
| 	samples = cx_read(MO_SAMPLE_IO); | ||||
| 
 | ||||
| 	if (samples == 0xff && ir->dev->idle) | ||||
| 		return; | ||||
| 
 | ||||
| 	init_ir_raw_event(&ev); | ||||
| 	for (todo = 32; todo > 0; todo -= bits) { | ||||
| 		ev.pulse = samples & 0x80000000 ? false : true; | ||||
| 		bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples)); | ||||
| 		ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate; | ||||
| 		ir_raw_event_store_with_filter(ir->dev, &ev); | ||||
| 		samples <<= bits; | ||||
| 	} | ||||
| 	ir_raw_event_handle(ir->dev); | ||||
| } | ||||
| 
 | ||||
| static int get_key_pvr2000(struct IR_i2c *ir, enum rc_type *protocol, | ||||
| 			   u32 *scancode, u8 *toggle) | ||||
| { | ||||
| 	int flags, code; | ||||
| 
 | ||||
| 	/* poll IR chip */ | ||||
| 	flags = i2c_smbus_read_byte_data(ir->c, 0x10); | ||||
| 	if (flags < 0) { | ||||
| 		dprintk("read error\n"); | ||||
| 		return 0; | ||||
| 	} | ||||
| 	/* key pressed ? */ | ||||
| 	if (0 == (flags & 0x80)) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	/* read actual key code */ | ||||
| 	code = i2c_smbus_read_byte_data(ir->c, 0x00); | ||||
| 	if (code < 0) { | ||||
| 		dprintk("read error\n"); | ||||
| 		return 0; | ||||
| 	} | ||||
| 
 | ||||
| 	dprintk("IR Key/Flags: (0x%02x/0x%02x)\n", | ||||
| 		   code & 0xff, flags & 0xff); | ||||
| 
 | ||||
| 	*protocol = RC_TYPE_UNKNOWN; | ||||
| 	*scancode = code & 0xff; | ||||
| 	*toggle = 0; | ||||
| 	return 1; | ||||
| } | ||||
| 
 | ||||
| void cx88_i2c_init_ir(struct cx88_core *core) | ||||
| { | ||||
| 	struct i2c_board_info info; | ||||
| 	const unsigned short default_addr_list[] = { | ||||
| 		0x18, 0x6b, 0x71, | ||||
| 		I2C_CLIENT_END | ||||
| 	}; | ||||
| 	const unsigned short pvr2000_addr_list[] = { | ||||
| 		0x18, 0x1a, | ||||
| 		I2C_CLIENT_END | ||||
| 	}; | ||||
| 	const unsigned short *addr_list = default_addr_list; | ||||
| 	const unsigned short *addrp; | ||||
| 	/* Instantiate the IR receiver device, if present */ | ||||
| 	if (0 != core->i2c_rc) | ||||
| 		return; | ||||
| 
 | ||||
| 	memset(&info, 0, sizeof(struct i2c_board_info)); | ||||
| 	strlcpy(info.type, "ir_video", I2C_NAME_SIZE); | ||||
| 
 | ||||
| 	switch (core->boardnr) { | ||||
| 	case CX88_BOARD_LEADTEK_PVR2000: | ||||
| 		addr_list = pvr2000_addr_list; | ||||
| 		core->init_data.name = "cx88 Leadtek PVR 2000 remote"; | ||||
| 		core->init_data.type = RC_BIT_UNKNOWN; | ||||
| 		core->init_data.get_key = get_key_pvr2000; | ||||
| 		core->init_data.ir_codes = RC_MAP_EMPTY; | ||||
| 		break; | ||||
| 	} | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * We can't call i2c_new_probed_device() because it uses | ||||
| 	 * quick writes for probing and at least some RC receiver | ||||
| 	 * devices only reply to reads. | ||||
| 	 * Also, Hauppauge XVR needs to be specified, as address 0x71 | ||||
| 	 * conflicts with another remote type used with saa7134 | ||||
| 	 */ | ||||
| 	for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) { | ||||
| 		info.platform_data = NULL; | ||||
| 		memset(&core->init_data, 0, sizeof(core->init_data)); | ||||
| 
 | ||||
| 		if (*addrp == 0x71) { | ||||
| 			/* Hauppauge XVR */ | ||||
| 			core->init_data.name = "cx88 Hauppauge XVR remote"; | ||||
| 			core->init_data.ir_codes = RC_MAP_HAUPPAUGE; | ||||
| 			core->init_data.type = RC_BIT_RC5; | ||||
| 			core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR; | ||||
| 
 | ||||
| 			info.platform_data = &core->init_data; | ||||
| 		} | ||||
| 		if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0, | ||||
| 					I2C_SMBUS_READ, 0, | ||||
| 					I2C_SMBUS_QUICK, NULL) >= 0) { | ||||
| 			info.addr = *addrp; | ||||
| 			i2c_new_device(&core->i2c_adap, &info); | ||||
| 			break; | ||||
| 		} | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| /* ---------------------------------------------------------------------- */ | ||||
| 
 | ||||
| MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe"); | ||||
| MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls"); | ||||
| MODULE_LICENSE("GPL"); | ||||
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