From 7dfd1242aa54f3246cf6f87158e2e14f0336b73d Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Thu, 24 May 2012 20:00:28 -0300 Subject: [PATCH] [media] dvb_usb_v2: pass device name too using (struct usb_device_id) Pass all the needed data to the DVB USB core using (struct usb_device_id) .driver_info. That simplifies old code a lot and saves memory as all device IDs and names are not defined inside (struct dvb_usb_device_properties) as earlier. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/dvb_usb.h | 27 +------- drivers/media/dvb/dvb-usb/dvb_usb_dvb.c | 6 +- drivers/media/dvb/dvb-usb/dvb_usb_i2c.c | 2 +- drivers/media/dvb/dvb-usb/dvb_usb_init.c | 79 ++++-------------------- 4 files changed, 19 insertions(+), 95 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/dvb_usb.h b/drivers/media/dvb/dvb-usb/dvb_usb.h index 149e45f034f8..dc9d09bce107 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb.h +++ b/drivers/media/dvb/dvb-usb/dvb_usb.h @@ -60,23 +60,9 @@ #define warn(format, arg...) \ printk(KERN_WARNING DVB_USB_LOG_PREFIX ": " format "\n" , ## arg) -/** - * struct dvb_usb_device_description - name and its according USB IDs - * @name: real name of the box, regardless which DVB USB device class is in use - * @cold_ids: array of struct usb_device_id which describe the device in - * pre-firmware state - * @warm_ids: array of struct usb_device_id which describe the device in - * post-firmware state - * - * Each DVB USB device class can have one or more actual devices, this struct - * assigns a name to it. - */ -struct dvb_usb_device_description { +struct dvb_usb_driver_info { const char *name; - -#define DVB_USB_ID_MAX_NUM 15 - struct usb_device_id *cold_ids[DVB_USB_ID_MAX_NUM]; - struct usb_device_id *warm_ids[DVB_USB_ID_MAX_NUM]; + const struct dvb_usb_device_properties *props; }; static inline u8 rc5_custom(struct rc_map_table *key) @@ -262,10 +248,6 @@ enum dvb_usb_mode { * the generic_bulk_ctrl_endpoint. When this is non-zero, this will be used * instead of the generic_bulk_ctrl_endpoint when reading usb responses in * the dvb_usb_generic_rw helper function. - * - * @num_device_descs: number of struct dvb_usb_device_description in @devices - * @devices: array of struct dvb_usb_device_description compatibles with these - * properties. */ #define MAX_NO_OF_ADAPTER_PER_DEVICE 2 struct dvb_usb_device_properties { @@ -309,9 +291,6 @@ struct dvb_usb_device_properties { int generic_bulk_ctrl_endpoint; int generic_bulk_ctrl_endpoint_response; - - int num_device_descs; - struct dvb_usb_device_description devices[12]; }; /** @@ -437,7 +416,7 @@ struct dvb_usb_adapter { */ struct dvb_usb_device { struct dvb_usb_device_properties props; - struct dvb_usb_device_description *desc; + const char *name; struct usb_device *udev; diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c b/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c index 832ef88ab248..85db3f46e77d 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c @@ -103,7 +103,7 @@ static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap) { int i; - int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name, + int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->name, adap->dev->props.owner, &adap->dev->udev->dev, adap->dev->props.adapter_nr); @@ -236,7 +236,7 @@ int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) if (adap->props.fe[i].frontend_attach == NULL) { err("strange: '%s' #%d,%d " \ "doesn't want to attach a frontend.", - adap->dev->desc->name, adap->id, i); + adap->dev->name, adap->id, i); return 0; } @@ -246,7 +246,7 @@ int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) /* only print error when there is no FE at all */ if (i == 0) err("no frontend was attached by '%s'", - adap->dev->desc->name); + adap->dev->name); return 0; } diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_i2c.c b/drivers/media/dvb/dvb-usb/dvb_usb_i2c.c index 58e5a4182245..6b272c861b4a 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_i2c.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_i2c.c @@ -19,7 +19,7 @@ int dvb_usb_i2c_init(struct dvb_usb_device *d) return -EINVAL; } - strlcpy(d->i2c_adap.name, d->desc->name, sizeof(d->i2c_adap.name)); + strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name)); d->i2c_adap.algo = d->props.i2c_algo; d->i2c_adap.algo_data = NULL; d->i2c_adap.dev.parent = &d->udev->dev; diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_init.c b/drivers/media/dvb/dvb-usb/dvb_usb_init.c index 14cfc1e35144..3314f36208ff 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_init.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_init.c @@ -198,49 +198,6 @@ static int dvb_usb_init(struct dvb_usb_device *d) return 0; } -/* determine the name and the state of the just found USB device */ -static struct dvb_usb_device_description *dvb_usb_find_device( - struct usb_device *udev, - struct dvb_usb_device_properties *props, bool *cold) -{ - int i, j; - struct dvb_usb_device_description *desc = NULL; - - *cold = true; - - for (i = 0; i < props->num_device_descs; i++) { - for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].cold_ids[j] != NULL; j++) { - deb_info("check for cold %x %x\n", - props->devices[i].cold_ids[j]->idVendor, - props->devices[i].cold_ids[j]->idProduct); - if (props->devices[i].cold_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) && - props->devices[i].cold_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) { - *cold = true; - desc = &props->devices[i]; - break; - } - } - - if (desc != NULL) - break; - - for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].warm_ids[j] != NULL; j++) { - deb_info("check for warm %x %x\n", - props->devices[i].warm_ids[j]->idVendor, - props->devices[i].warm_ids[j]->idProduct); - - if (props->devices[i].warm_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) && - props->devices[i].warm_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) { - *cold = false; - desc = &props->devices[i]; - break; - } - } - } - - return desc; -} - int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff) { if (onoff) @@ -265,11 +222,11 @@ int dvb_usbv2_device_init(struct usb_interface *intf, { struct usb_device *udev = interface_to_usbdev(intf); struct dvb_usb_device *d = NULL; - struct dvb_usb_device_description *desc = NULL; - struct dvb_usb_device_properties *props = - (struct dvb_usb_device_properties *) id->driver_info; + struct dvb_usb_driver_info *driver_info = + (struct dvb_usb_driver_info *) id->driver_info; + const struct dvb_usb_device_properties *props = driver_info->props; int ret = -ENOMEM; - bool cold; + bool cold = false; d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL); if (d == NULL) { @@ -278,6 +235,7 @@ int dvb_usbv2_device_init(struct usb_interface *intf, } d->udev = udev; + d->name = driver_info->name; memcpy(&d->props, props, sizeof(struct dvb_usb_device_properties)); if (d->props.size_of_priv > 0) { @@ -289,18 +247,6 @@ int dvb_usbv2_device_init(struct usb_interface *intf, } } - desc = dvb_usb_find_device(udev, props, &cold); - - if (desc == NULL) { - deb_err("something went very wrong, device was not found in" \ - " current device list - let's see what" \ - " comes next.\n"); - ret = -ENODEV; - goto err_kfree; - } - - d->desc = desc; - if (d->props.identify_state) { ret = d->props.identify_state(d); if (ret == 0) { @@ -315,7 +261,7 @@ int dvb_usbv2_device_init(struct usb_interface *intf, if (cold) { info("found a '%s' in cold state, will try to load a firmware", - desc->name); + d->name); ret = dvb_usb_download_firmware(d); if (ret == 0) { ; @@ -327,16 +273,16 @@ int dvb_usbv2_device_init(struct usb_interface *intf, } } - info("found a '%s' in warm state.", desc->name); + info("found a '%s' in warm state.", d->name); usb_set_intfdata(intf, d); ret = dvb_usb_init(d); if (ret == 0) - info("%s successfully initialized and connected.", desc->name); + info("%s successfully initialized and connected.", d->name); else - info("%s error while loading driver (%d)", desc->name, ret); + info("%s error while loading driver (%d)", d->name, ret); return 0; @@ -351,15 +297,14 @@ EXPORT_SYMBOL(dvb_usbv2_device_init); void dvb_usbv2_device_exit(struct usb_interface *intf) { struct dvb_usb_device *d = usb_get_intfdata(intf); - const char *name = "generic DVB-USB module"; + const char *name; usb_set_intfdata(intf, NULL); - if (d != NULL && d->desc != NULL) { - name = d->desc->name; + if (d) { + name = d->name; dvb_usb_exit(d); } info("%s successfully deinitialized and disconnected.", name); - } EXPORT_SYMBOL(dvb_usbv2_device_exit); -- 2.20.1