// SPDX-License-Identifier: GPL-2.0-or-later /* * * device driver for philips saa7134 based TV cards * driver core * * (c) 2001-03 Gerd Knorr <[email protected]> [SuSE Labs] */ #include "saa7134.h" #include "saa7134-reg.h" #include <linux/init.h> #include <linux/list.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/kmod.h> #include <linux/sound.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/mutex.h> #include <linux/dma-mapping.h> #include <linux/pm.h> MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…); /* ------------------------------------------------------------------ */ static unsigned int irq_debug; module_param(irq_debug, int, 0644); MODULE_PARM_DESC(…) …; static unsigned int core_debug; module_param(core_debug, int, 0644); MODULE_PARM_DESC(…) …; static unsigned int gpio_tracking; module_param(gpio_tracking, int, 0644); MODULE_PARM_DESC(…) …; static unsigned int alsa = …; module_param(alsa, int, 0644); MODULE_PARM_DESC(…) …; static unsigned int latency = …; module_param(latency, int, 0444); MODULE_PARM_DESC(…) …; bool saa7134_userptr; module_param(saa7134_userptr, bool, 0644); MODULE_PARM_DESC(…) …; static unsigned int video_nr[] = …; static unsigned int vbi_nr[] = …; static unsigned int radio_nr[] = …; static unsigned int tuner[] = …; static unsigned int card[] = …; module_param_array(…); module_param_array(…); module_param_array(…); module_param_array(…); module_param_array(…); MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; DEFINE_MUTEX(…) …; EXPORT_SYMBOL(…); LIST_HEAD(…); EXPORT_SYMBOL(…); static LIST_HEAD(mops_list); static unsigned int saa7134_devcount; int (*saa7134_dmasound_init)(struct saa7134_dev *dev); int (*saa7134_dmasound_exit)(struct saa7134_dev *dev); #define core_dbg(fmt, arg...) … #define irq_dbg(level, fmt, arg...) … void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg) { … } void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value) { … } /* ------------------------------------------------------------------ */ /* ----------------------------------------------------------- */ /* delayed request_module */ #if defined(CONFIG_MODULES) && defined(MODULE) static void request_module_async(struct work_struct *work){ struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk); if (card_is_empress(dev)) request_module("saa7134-empress"); if (card_is_dvb(dev)) request_module("saa7134-dvb"); if (card_is_go7007(dev)) request_module("saa7134-go7007"); if (alsa) { if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130) request_module("saa7134-alsa"); } } static void request_submodules(struct saa7134_dev *dev) { INIT_WORK(&dev->request_module_wk, request_module_async); schedule_work(&dev->request_module_wk); } static void flush_request_submodules(struct saa7134_dev *dev) { flush_work(&dev->request_module_wk); } #else #define request_submodules(dev) … #define flush_request_submodules(dev) … #endif /* CONFIG_MODULES */ /* ------------------------------------------------------------------ */ /* nr of (saa7134-)pages for the given buffer size */ static int saa7134_buffer_pages(int size) { … } /* calc max # of buffers from size (must not exceed the 4MB virtual * address space per DMA channel) */ int saa7134_buffer_count(unsigned int size, unsigned int count) { … } int saa7134_buffer_startpage(struct saa7134_buf *buf) { … } unsigned long saa7134_buffer_base(struct saa7134_buf *buf) { … } /* ------------------------------------------------------------------ */ int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt) { … } int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt, struct scatterlist *list, unsigned int length, unsigned int startpage) { … } void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt) { … } /* ------------------------------------------------------------------ */ int saa7134_buffer_queue(struct saa7134_dev *dev, struct saa7134_dmaqueue *q, struct saa7134_buf *buf) { … } void saa7134_buffer_finish(struct saa7134_dev *dev, struct saa7134_dmaqueue *q, unsigned int state) { … } void saa7134_buffer_next(struct saa7134_dev *dev, struct saa7134_dmaqueue *q) { … } void saa7134_buffer_timeout(struct timer_list *t) { … } void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q) { … } EXPORT_SYMBOL_GPL(…); /* ------------------------------------------------------------------ */ int saa7134_set_dmabits(struct saa7134_dev *dev) { … } /* ------------------------------------------------------------------ */ /* IRQ handler + helpers */ static char *irqbits[] = …; #define IRQBITS … static void print_irqstatus(struct saa7134_dev *dev, int loop, unsigned long report, unsigned long status) { … } static irqreturn_t saa7134_irq(int irq, void *dev_id) { … } /* ------------------------------------------------------------------ */ /* early init (no i2c, no irq) */ static int saa7134_hw_enable1(struct saa7134_dev *dev) { … } static int saa7134_hwinit1(struct saa7134_dev *dev) { … } /* late init (with i2c + irq) */ static int saa7134_hw_enable2(struct saa7134_dev *dev) { … } static int saa7134_hwinit2(struct saa7134_dev *dev) { … } /* shutdown */ static int saa7134_hwfini(struct saa7134_dev *dev) { … } static void must_configure_manually(int has_eeprom) { … } static void saa7134_unregister_media_device(struct saa7134_dev *dev) { … } static void saa7134_media_release(struct saa7134_dev *dev) { … } #if defined(CONFIG_MEDIA_CONTROLLER) static void saa7134_create_entities(struct saa7134_dev *dev) { … } #endif static struct video_device *vdev_init(struct saa7134_dev *dev, struct video_device *template, char *type) { … } static void saa7134_unregister_video(struct saa7134_dev *dev) { … } static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops, struct saa7134_dev *dev) { … } static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops, struct saa7134_dev *dev) { … } static int saa7134_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { … } static void saa7134_finidev(struct pci_dev *pci_dev) { … } /* resends a current buffer in queue after resume */ static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev, struct saa7134_dmaqueue *q) { … } static int __maybe_unused saa7134_suspend(struct device *dev_d) { … } static int __maybe_unused saa7134_resume(struct device *dev_d) { … } /* ----------------------------------------------------------- */ int saa7134_ts_register(struct saa7134_mpeg_ops *ops) { … } void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops) { … } EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); /* ----------------------------------------------------------- */ static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume); static struct pci_driver saa7134_pci_driver = …; static int __init saa7134_init(void) { … } static void __exit saa7134_fini(void) { … } module_init(…) …; module_exit(saa7134_fini); /* ----------------------------------------------------------- */ EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); /* ----------------- for the DMA sound modules --------------- */ EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…);
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