[13/15] V4L/DVB: ir-core: Add callbacks for input/evdev open/close on IR core

Message ID	20100401145631.2a227fe7@pedra (mailing list archive)
State	RFC
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o31Hwsjn005885 for <patchwork-media@patchwork.kernel.org>; Thu, 1 Apr 2010 17:58:56 GMT Date: Thu, 1 Apr 2010 14:56:31 -0300 From: Mauro Carvalho Chehab <mchehab@redhat.com> To: linux-input@vger.kernel.org, Linux Media Mailing List <linux-media@vger.kernel.org> Subject: [PATCH 13/15] V4L/DVB: ir-core: Add callbacks for input/evdev open/close on IR core Message-ID: <20100401145631.2a227fe7@pedra> In-Reply-To: <cover.1270142346.git.mchehab@redhat.com> References: <cover.1270142346.git.mchehab@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c index f25193c..db54562 100644 --- a/drivers/media/IR/ir-keytable.c +++ b/drivers/media/IR/ir-keytable.c @@ -445,6 +445,19 @@ void ir_keydown(struct input_dev *dev, int scancode) } EXPORT_SYMBOL_GPL(ir_keydown); +static int ir_open(struct input_dev *input_dev) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); + + return ir_dev->props->open(ir_dev->props->priv); +} + +static void ir_close(struct input_dev *input_dev) +{ + struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); + + ir_dev->props->close(ir_dev->props->priv); +} /** * ir_input_register() - sets the IR keycode table and add the handlers @@ -494,6 +507,10 @@ int ir_input_register(struct input_dev *input_dev, ir_copy_table(&ir_dev->rc_tab, rc_tab); ir_dev->props = props; + if (props && props->open) + input_dev->open = ir_open; + if (props && props->close) + input_dev->close = ir_close; /* set the bits for the keys */ IR_dprintk(1, "key map size: %d\n", rc_tab->size); diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index a7ad781..68cda10 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -1227,7 +1227,7 @@ static int saa7134_resume(struct pci_dev *pci_dev) if (card_has_mpeg(dev)) saa7134_ts_init_hw(dev); if (dev->remote) - saa7134_ir_start(dev, dev->remote); + saa7134_ir_start(dev); saa7134_hw_enable1(dev); msleep(100); diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index a42c953..9e2b32c 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -399,7 +399,14 @@ static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) void saa7134_input_irq(struct saa7134_dev *dev) { - struct card_ir *ir = dev->remote; + struct card_ir *ir; + + if (!dev || !dev->remote) + return; + + ir = dev->remote; + if (!ir->running) + return; if (ir->nec_gpio) { saa7134_nec_irq(dev); @@ -431,10 +438,20 @@ void ir_raw_decode_timer_end(unsigned long data) ir->active = 0; } -void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir) +static int __saa7134_ir_start(void *priv) { + struct saa7134_dev *dev = priv; + struct card_ir *ir; + + if (!dev) + return -EINVAL; + + ir = dev->remote; + if (!ir) + return -EINVAL; + if (ir->running) - return; + return 0; ir->running = 1; if (ir->polling) { @@ -466,11 +483,21 @@ void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir) ir->timer_end.data = (unsigned long)dev; ir->active = 0; } + + return 0; } -void saa7134_ir_stop(struct saa7134_dev *dev) +static void __saa7134_ir_stop(void *priv) { - struct card_ir *ir = dev->remote; + struct saa7134_dev *dev = priv; + struct card_ir *ir; + + if (!dev) + return; + + ir = dev->remote; + if (!ir) + return; if (!ir->running) return; @@ -486,8 +513,42 @@ void saa7134_ir_stop(struct saa7134_dev *dev) } ir->running = 0; + + return; } +int saa7134_ir_start(struct saa7134_dev *dev) +{ + if (dev->remote->users) + return __saa7134_ir_start(dev); + + return 0; +} + +void saa7134_ir_stop(struct saa7134_dev *dev) +{ + if (dev->remote->users) + __saa7134_ir_stop(dev); +} + +static int saa7134_ir_open(void *priv) +{ + struct saa7134_dev *dev = priv; + + dev->remote->users++; + return __saa7134_ir_start(dev); +} + +static void saa7134_ir_close(void *priv) +{ + struct saa7134_dev *dev = priv; + + dev->remote->users--; + if (!dev->remote->users) + __saa7134_ir_stop(dev); +} + + int saa7134_ir_change_protocol(void *priv, u64 ir_type) { struct saa7134_dev *dev = priv; @@ -512,7 +573,7 @@ int saa7134_ir_change_protocol(void *priv, u64 ir_type) saa7134_ir_stop(dev); ir->nec_gpio = nec_gpio; ir->rc5_gpio = rc5_gpio; - saa7134_ir_start(dev, ir); + saa7134_ir_start(dev); } else { ir->nec_gpio = nec_gpio; ir->rc5_gpio = rc5_gpio; @@ -787,9 +848,13 @@ int saa7134_input_init1(struct saa7134_dev *dev) snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(dev->pci)); + + ir->props.priv = dev; + ir->props.open = saa7134_ir_open; + ir->props.close = saa7134_ir_close; + if (ir_codes->ir_type != IR_TYPE_OTHER && !raw_decode) { ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC; - ir->props.priv = dev; ir->props.change_protocol = saa7134_ir_change_protocol; /* Set IR protocol */ @@ -814,25 +879,21 @@ int saa7134_input_init1(struct saa7134_dev *dev) err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME); if (err) - goto err_out_stop; + goto err_out_free; if (ir_codes->ir_type != IR_TYPE_OTHER) { err = ir_raw_event_register(ir->dev); if (err) - goto err_out_stop; + goto err_out_free; } - saa7134_ir_start(dev, ir); - /* the remote isn't as bouncy as a keyboard */ ir->dev->rep[REP_DELAY] = repeat_delay; ir->dev->rep[REP_PERIOD] = repeat_period; return 0; - err_out_stop: - saa7134_ir_stop(dev); +err_out_free: dev->remote = NULL; - err_out_free: kfree(ir); return err; } diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index c3a1ae0..cad8aee 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -20,7 +20,7 @@ */ #include <linux/version.h> -#define SAA7134_VERSION_CODE KERNEL_VERSION(0,2,15) +#define SAA7134_VERSION_CODE KERNEL_VERSION(0, 2, 16) #include <linux/pci.h> #include <linux/i2c.h> @@ -810,7 +810,7 @@ int saa7134_input_init1(struct saa7134_dev *dev); void saa7134_input_fini(struct saa7134_dev *dev); void saa7134_input_irq(struct saa7134_dev *dev); void saa7134_probe_i2c_ir(struct saa7134_dev *dev); -void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir); +int saa7134_ir_start(struct saa7134_dev *dev); void saa7134_ir_stop(struct saa7134_dev *dev); diff --git a/include/media/ir-common.h b/include/media/ir-common.h index 87f2ec7..e403a9a 100644 --- a/include/media/ir-common.h +++ b/include/media/ir-common.h @@ -50,6 +50,7 @@ struct card_ir { struct ir_input_state ir; char name[32]; char phys[32]; + int users; u32 running:1; struct ir_dev_props props; diff --git a/include/media/ir-core.h b/include/media/ir-core.h index c704fa7..9a2f308 100644 --- a/include/media/ir-core.h +++ b/include/media/ir-core.h @@ -56,6 +56,8 @@ struct ir_dev_props { unsigned long allowed_protos; void *priv; int (*change_protocol)(void *priv, u64 ir_type); + int (*open)(void *priv); + void (*close)(void *priv); }; struct ir_raw_event {

[13/15] V4L/DVB: ir-core: Add callbacks for input/evdev open/close on IR core

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