From 26f48eaa9e57a3436fc049f30241256dda002de5 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Thu, 28 Sep 2006 01:46:49 -0300 Subject: [PATCH] V4L/DVB (5131): M920x: more cleanups Some cleanups and suggestions from Patrick Boettcher. Dropped the mutex in m9206_rc_query using #if 0, because M9206_CORE, M9206_I2C, M9206_FILTER and M9206_FW can be accessed concurrently. Thanks to both Aapo Tahkola and Patrick Boettcher. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/m920x.c | 104 +++++++++++++++++--------------------- drivers/media/dvb/dvb-usb/m920x.h | 12 ++--- 2 files changed, 51 insertions(+), 65 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c index 197bc29..14b32ff 100644 --- a/drivers/media/dvb/dvb-usb/m920x.c +++ b/drivers/media/dvb/dvb-usb/m920x.c @@ -16,7 +16,7 @@ #include "qt1010.h" /* debug */ -int dvb_usb_m920x_debug; +static int dvb_usb_m920x_debug; module_param_named(debug,dvb_usb_m920x_debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); @@ -85,8 +85,6 @@ static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state) int i, ret = 0; u8 rc_state[2]; - if (mutex_lock_interruptible(&d->i2c_mutex) < 0) - return -EAGAIN; if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0) goto unlock; @@ -128,7 +126,6 @@ static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state) *state = REMOTE_NO_KEY_PRESSED; unlock: - mutex_unlock(&d->i2c_mutex); return ret; } @@ -240,8 +237,6 @@ static int megasky_mt352_demod_init(struct dvb_frontend *fe) return 0; } -struct mt352_state; - static struct mt352_config megasky_mt352_config = { .demod_address = 0x1e, .no_tuner = 1, @@ -267,52 +262,7 @@ static int megasky_tuner_attach(struct dvb_usb_adapter *adap) return 0; } -/* DVB USB Driver stuff */ -static struct dvb_usb_device_properties megasky_properties; - -static int m920x_probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - struct usb_device *udev = interface_to_usbdev(intf); - struct dvb_usb_device *d; - struct usb_host_interface *alt; - struct dvb_usb_device_properties props; - int ret; - - memcpy(&props, &megasky_properties, sizeof(struct dvb_usb_device_properties)); - - /* Hardware pid filtering isn't quite perfect so dont use unless have to. */ - if (udev->speed == USB_SPEED_FULL) - props.caps |= DVB_USB_ADAP_HAS_PID_FILTER | - DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF; - - if ((ret = dvb_usb_device_init(intf, &props, THIS_MODULE, &d)) == 0) { - deb_rc("probed!\n"); - - alt = usb_altnum_to_altsetting(intf, 1); - if (alt == NULL) { - deb_rc("not alt found!\n"); - return -ENODEV; - } - - ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, alt->desc.bAlternateSetting); - if (ret < 0) - return ret; - - deb_rc("Changed to alternate setting!\n"); - - if ((ret = m9206_rc_init(d->udev)) != 0) - return ret; - } - return ret; -} - -static struct usb_device_id m920x_table [] = { - { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) }, - { } /* Terminating entry */ -}; -MODULE_DEVICE_TABLE (usb, m920x_table); - -static int set_filter(struct dvb_usb_adapter *adap, int type, int idx, int pid) +static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx, int pid) { int ret = 0; @@ -341,14 +291,14 @@ static int m9206_update_filters(struct dvb_usb_adapter *adap) enabled = 0; /* Disable all filters */ - if ((ret = set_filter(adap, 0x81, 1, enabled)) != 0) + if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0) return ret; for (i = 0; i < M9206_MAX_FILTERS; i++) - if ((ret = set_filter(adap, 0x81, i + 2, 0)) != 0) + if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0) return ret; - if ((ret = set_filter(adap, 0x82, 0, 0x0)) != 0) + if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0) return ret; /* Set */ @@ -357,14 +307,14 @@ static int m9206_update_filters(struct dvb_usb_adapter *adap) if (m->filters[i] == 0) continue; - if ((ret = set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0) + if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0) return ret; filter++; } } - if ((ret = set_filter(adap, 0x82, 0, 0x02f5)) != 0) + if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0) return ret; return ret; @@ -450,6 +400,42 @@ static int m9206_firmware_download(struct usb_device *udev, const struct firmwar return ret; } +/* DVB USB Driver stuff */ +static struct dvb_usb_device_properties megasky_properties; + +static int m920x_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct dvb_usb_device *d; + struct usb_host_interface *alt; + int ret; + + if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0) { + deb_rc("probed!\n"); + + alt = usb_altnum_to_altsetting(intf, 1); + if (alt == NULL) { + deb_rc("not alt found!\n"); + return -ENODEV; + } + + ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, alt->desc.bAlternateSetting); + if (ret < 0) + return ret; + + deb_rc("Changed to alternate setting!\n"); + + if ((ret = m9206_rc_init(d->udev)) != 0) + return ret; + } + return ret; +} + +static struct usb_device_id m920x_table [] = { + { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) }, + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE (usb, m920x_table); + static struct dvb_usb_device_properties megasky_properties = { .usb_ctrl = DEVICE_SPECIFIC, .firmware = "dvb-usb-megasky-02.fw", @@ -465,7 +451,9 @@ static struct dvb_usb_device_properties megasky_properties = { .identify_state = megasky_identify_state, .num_adapters = 1, .adapter = {{ - .caps = DVB_USB_IS_AN_I2C_ADAPTER, + .caps = DVB_USB_IS_AN_I2C_ADAPTER | DVB_USB_ADAP_HAS_PID_FILTER | + DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF, + .pid_filter_count = 8, .pid_filter = m9206_pid_filter, .pid_filter_ctrl = m9206_pid_filter_ctrl, diff --git a/drivers/media/dvb/dvb-usb/m920x.h b/drivers/media/dvb/dvb-usb/m920x.h index 709b7d2..597df11 100644 --- a/drivers/media/dvb/dvb-usb/m920x.h +++ b/drivers/media/dvb/dvb-usb/m920x.h @@ -4,15 +4,14 @@ #define DVB_USB_LOG_PREFIX "m920x" #include "dvb-usb.h" -extern int dvb_usb_m920x_debug; #define deb_rc(args...) dprintk(dvb_usb_m920x_debug,0x01,args) #define M9206_CORE 0x22 -#define M9206_RC_STATE 0xff51 -#define M9206_RC_KEY 0xff52 -#define M9206_RC_INIT1 0xff54 -#define M9206_RC_INIT2 0xff55 -#define M9206_FW_GO 0xff69 +#define M9206_RC_STATE 0xff51 +#define M9206_RC_KEY 0xff52 +#define M9206_RC_INIT1 0xff54 +#define M9206_RC_INIT2 0xff55 +#define M9206_FW_GO 0xff69 #define M9206_I2C 0x23 #define M9206_FILTER 0x25 @@ -24,5 +23,4 @@ struct m9206_state { int filtering_enabled; int rep_count; }; - #endif -- 2.7.4