diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/media/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/mdtv/Kconfig | 36 | ||||
| -rw-r--r-- | drivers/media/mdtv/Makefile | 8 | ||||
| -rw-r--r-- | drivers/media/mdtv/smschar.c | 575 | ||||
| -rw-r--r-- | drivers/media/mdtv/smschar.h | 7 | ||||
| -rw-r--r-- | drivers/media/mdtv/smscharioctl.h | 17 | ||||
| -rw-r--r-- | drivers/media/mdtv/smscoreapi.c | 1170 | ||||
| -rw-r--r-- | drivers/media/mdtv/smscoreapi.h | 101 | ||||
| -rw-r--r-- | drivers/media/mdtv/smsdvb.c | 438 | ||||
| -rw-r--r-- | drivers/media/mdtv/smskdefs.h | 21 | ||||
| -rw-r--r-- | drivers/media/mdtv/smsnet.c | 447 | ||||
| -rw-r--r-- | drivers/media/mdtv/smstypes.h | 361 | ||||
| -rw-r--r-- | drivers/media/mdtv/smsusb.c | 428 |
14 files changed, 3624 insertions, 0 deletions
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 7a7803b5d49..e6a5879ea5f 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -115,6 +115,20 @@ source "drivers/media/radio/Kconfig" source "drivers/media/dvb/Kconfig" +# +# Mobile Digital TV devices (DVB-H, T-DMB, etc.) +# +menuconfig MDTV_ADAPTERS + bool "Mobile Digital TV adapter" + default y + +if MDTV_ADAPTERS + +source "drivers/media/mdtv/Kconfig" + +endif # MDTV_ADAPTERS + + config DAB boolean "DAB adapters" ---help--- diff --git a/drivers/media/Makefile b/drivers/media/Makefile index 09a829d8a7e..ec2102bcb28 100644 --- a/drivers/media/Makefile +++ b/drivers/media/Makefile @@ -6,3 +6,4 @@ obj-y += common/ video/ obj-$(CONFIG_VIDEO_DEV) += radio/ obj-$(CONFIG_DVB_CORE) += dvb/ +obj-$(CONFIG_MDTV_ADAPTERS) += mdtv/
\ No newline at end of file diff --git a/drivers/media/mdtv/Kconfig b/drivers/media/mdtv/Kconfig new file mode 100644 index 00000000000..f3bae45000d --- /dev/null +++ b/drivers/media/mdtv/Kconfig @@ -0,0 +1,36 @@ +# +# Mobile Digital TV device configuration +# + +config MDTV_SIANO_STELLAR_COMMON + tristate "Siano SMS10xx adapter" + default m + ---help--- + Choose Y here if you have SMS10xx chipset. + + In order to control the SMS10xx chipset you will need SMS Host Control library. + + Further documentation on this driver can be found on the WWW at + <http://www.siano-ms.com/>. + + To compile this driver as a module, choose M here: the + modules will be called smschar and smsnet. + +config MDTV_SIANO_STELLAR_USB + tristate "Siano SMS10xx USB dongle support" + depends on MDTV_SIANO_STELLAR_COMMON + default m + ---help--- + Choose Y here if you have USB dongle with SMS10xx chipset. + + In order to control the SMS10xx chipset you will need SMS Host Control library. + + Further documentation on this driver can be found on the WWW at + <http://www.siano-ms.com/>. + + To compile this driver as a module, choose M here: the + module will be called smsusb. + + + + diff --git a/drivers/media/mdtv/Makefile b/drivers/media/mdtv/Makefile new file mode 100644 index 00000000000..1e54d8f796d --- /dev/null +++ b/drivers/media/mdtv/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for the kernel MDTV driver +# + +obj-$(CONFIG_MDTV_SIANO_STELLAR_COMMON) += smschar.o smsnet.o +obj-$(CONFIG_MDTV_SIANO_STELLAR_USB) += smsusb.o + +EXTRA_CFLAGS += diff --git a/drivers/media/mdtv/smschar.c b/drivers/media/mdtv/smschar.c new file mode 100644 index 00000000000..0477ad0ed6d --- /dev/null +++ b/drivers/media/mdtv/smschar.c @@ -0,0 +1,575 @@ +/*! + + \file smschar.c + + \brief Implementation of smscore client for cdev based access + + \par Copyright (c), 2005-2008 Siano Mobile Silicon, Inc. + + \par This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 3 as + published by the Free Software Foundation; + + Software distributed under the License is distributed on an "AS + IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + implied. + + \author Anatoly Greenblat + +*/ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> + +#include <linux/kernel.h> /* printk() */ +#include <linux/fs.h> /* everything... */ +#include <linux/types.h> /* size_t */ +#include <linux/cdev.h> +#include <linux/sched.h> +#include <asm/system.h> /* cli(), *_flags */ +#include <asm/uaccess.h> /* copy_*_user */ + +#include "smskdefs.h" // page, scatterlist, kmutex +#include "smscoreapi.h" +#include "smstypes.h" + +#include "smscharioctl.h" + +#define SMS_CHR_MAX_Q_LEN 10 // max number of packets allowed to be pending on queue +#define SMSCHAR_NR_DEVS 7 + +typedef struct _smschar_device +{ + struct cdev cdev; //!< Char device structure - kernel's device model representation + + wait_queue_head_t waitq; /* Processes waiting */ + spinlock_t lock; //!< critical section + int pending_count; + struct list_head pending_data; //!< list of pending data + + smscore_buffer_t *currentcb; + + int device_index; + + smscore_device_t *coredev; + smscore_client_t *smsclient; +} smschar_device_t; + +//! Holds the major number of the device node. may be changed at load time. +int smschar_major = 251; + +//! Holds the first minor number of the device node. may be changed at load time. +int smschar_minor = 0; + +// macros that allow the load time parameters change +module_param ( smschar_major, int, S_IRUGO ); +module_param ( smschar_minor, int, S_IRUGO ); + +#ifdef SMSCHAR_DEBUG + + #undef PERROR +# define PERROR(fmt, args...) printk( KERN_INFO "smschar error: line %d- %s(): " fmt,__LINE__, __FUNCTION__, ## args) + #undef PWARNING +# define PWARNING(fmt, args...) printk( KERN_INFO "smschar warning: line %d- %s(): " fmt,__LINE__, __FUNCTION__, ## args) + #undef PDEBUG /* undef it, just in case */ +# define PDEBUG(fmt, args...) printk( KERN_INFO "smschar - %s(): " fmt, __FUNCTION__, ## args) + +#else /* not debugging: nothing */ + + #define PDEBUG(fmt, args...) + #define PERROR(fmt, args...) + #define PWARNING(fmt, args...) + +#endif + +smschar_device_t smschar_devices[SMSCHAR_NR_DEVS]; +static int g_smschar_inuse = 0; + +/** + * unregisters sms client and returns all queued buffers + * + * @param dev pointer to the client context (smschar parameters block) + * + */ +void smschar_unregister_client(smschar_device_t* dev) +{ + unsigned long flags; + + if (dev->coredev && dev->smsclient) + { + wake_up_interruptible(&dev->waitq); + + spin_lock_irqsave(&dev->lock, flags); + + while (!list_empty(&dev->pending_data)) + { + smscore_buffer_t *cb = (smscore_buffer_t *) dev->pending_data.next; + list_del(&cb->entry); + + smscore_putbuffer(dev->coredev, cb); + + dev->pending_count --; + } + + if (dev->currentcb) + { + smscore_putbuffer(dev->coredev, dev->currentcb); + dev->currentcb = NULL; + dev->pending_count --; + } + + smscore_unregister_client(dev->smsclient); + dev->smsclient = NULL; + + spin_unlock_irqrestore(&dev->lock, flags); + } +} + +/** + * queues incoming buffers into buffers queue + * + * @param context pointer to the client context (smschar parameters block) + * @param cb pointer to incoming buffer descriptor + * + * @return 0 on success, <0 on queue overflow. + */ +int smschar_onresponse(void *context, smscore_buffer_t *cb) +{ + smschar_device_t *dev = context; + unsigned long flags; + + spin_lock_irqsave(&dev->lock, flags); + + if (dev->pending_count > SMS_CHR_MAX_Q_LEN) + { + spin_unlock_irqrestore(&dev->lock, flags); + return -EBUSY; + } + + dev->pending_count ++; + + // if data channel, remove header + if (dev->device_index) + { + cb->size -= sizeof(SmsMsgHdr_ST); + cb->offset += sizeof(SmsMsgHdr_ST); + } + + list_add_tail(&cb->entry, &dev->pending_data); + spin_unlock_irqrestore(&dev->lock, flags); + + if (waitqueue_active(&dev->waitq)) + wake_up_interruptible(&dev->waitq); + + return 0; +} + +/** + * handles device removal event + * + * @param context pointer to the client context (smschar parameters block) + * + */ +void smschar_onremove(void *context) +{ + smschar_device_t *dev = (smschar_device_t *) context; + + smschar_unregister_client(dev); + dev->coredev = NULL; +} + +/** + * registers client associated with the node + * + * @param inode Inode concerned. + * @param file File concerned. + * + * @return 0 on success, <0 on error. + */ +int smschar_open (struct inode *inode, struct file *file) +{ + smschar_device_t *dev = container_of(inode->i_cdev, smschar_device_t, cdev); + int rc = -ENODEV; + + PDEBUG("entering index %d\n", dev->device_index); + + if (dev->coredev) + { + smsclient_params_t params; + + params.initial_id = dev->device_index ? dev->device_index : SMS_HOST_LIB; + params.data_type = dev->device_index ? MSG_SMS_DAB_CHANNEL : 0; + params.onresponse_handler = smschar_onresponse; + params.onremove_handler = smschar_onremove; + params.context = dev; + + rc = smscore_register_client(dev->coredev, ¶ms, &dev->smsclient); + if (!rc) + { + file->private_data = dev; + } + } + + PDEBUG("exiting, rc %d\n", rc); + + return rc; +} + +/** + * unregisters client associated with the node + * + * @param inode Inode concerned. + * @param file File concerned. + * + */ +int smschar_release(struct inode *inode, struct file *file) +{ + smschar_unregister_client(file->private_data); + + PDEBUG("exiting\n"); + + return 0; +} + +/** + * copies data from buffers in incoming queue into a user buffer + * + * @param file File structure. + * @param buf Source buffer. + * @param count Size of source buffer. + * @param f_pos Position in file (ignored). + * + * @return Number of bytes read, or <0 on error. + */ +ssize_t smschar_read ( struct file * file, char __user * buf, size_t count, loff_t * f_pos ) +{ + smschar_device_t *dev = file->private_data; + unsigned long flags; + int copied = 0; + + if (!dev->coredev || !dev->smsclient) + { + PERROR("no client\n"); + return -ENODEV; + } + + while (copied != count) + { + if (0 > wait_event_interruptible(dev->waitq, !list_empty(&dev->pending_data))) + { + PERROR("wait_event_interruptible error\n"); + return -ENODEV; + } + + if (!dev->smsclient) + { + PERROR("no client\n"); + return -ENODEV; + } + + spin_lock_irqsave(&dev->lock, flags); + + while (!list_empty(&dev->pending_data) && (copied != count)) + { + smscore_buffer_t *cb = (smscore_buffer_t *) dev->pending_data.next; + int actual_size = min(((int) count - copied), cb->size); + + copy_to_user(&buf[copied], &((char*)cb->p)[cb->offset], actual_size); + + copied += actual_size; + cb->offset += actual_size; + cb->size -= actual_size; + + if (!cb->size) + { + list_del(&cb->entry); + smscore_putbuffer(dev->coredev, cb); + + dev->pending_count --; + } + } + + spin_unlock_irqrestore(&dev->lock, flags); + } + + return copied; +} + +/** + * sends the buffer to the associated device + * + * @param file File structure. + * @param buf Source buffer. + * @param count Size of source buffer. + * @param f_pos Position in file (ignored). + * + * @return Number of bytes read, or <0 on error. + */ +ssize_t smschar_write(struct file *file, const char __user *buf, size_t count, loff_t *f_pos) +{ + smschar_device_t *dev = file->private_data; + void *buffer; + + if (!dev->smsclient) + { + PERROR("no client\n"); + return -ENODEV; + } + + buffer = kmalloc(ALIGN(count, SMS_ALLOC_ALIGNMENT) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); + if (buffer) + { + void *msg_buffer = (void*) SMS_ALIGN_ADDRESS(buffer); + + if (!copy_from_user(msg_buffer, buf, count)) + smsclient_sendrequest(dev->smsclient, msg_buffer, count); + else + count = 0; + + kfree(buffer); + } + + return count; +} + +int smschar_mmap(struct file *file, struct vm_area_struct *vma) +{ + smschar_device_t *dev = file->private_data; + return smscore_map_common_buffer(dev->coredev, vma); +} + +/** + * waits until buffer inserted into a queue. when inserted buffer offset are reported + * to the calling process. previously reported buffer is returned to smscore pool + * + * @param dev pointer to smschar parameters block + * @param touser pointer to a structure that receives incoming buffer offsets + * + * @return 0 on success, <0 on error. + */ +int smschar_wait_get_buffer(smschar_device_t* dev, smschar_buffer_t* touser) +{ + unsigned long flags; + int rc; + + spin_lock_irqsave(&dev->lock, flags); + + if (dev->currentcb) + { + smscore_putbuffer(dev->coredev, dev->currentcb); + dev->currentcb = NULL; + dev->pending_count --; + } + + spin_unlock_irqrestore(&dev->lock, flags); + + rc = wait_event_interruptible(dev->waitq, !list_empty(&dev->pending_data)); + if (rc < 0) + { + PERROR("wait_event_interruptible error\n"); + return rc; + } + + if (!dev->smsclient) + { + PERROR("no client\n"); + return -ENODEV; + } + + spin_lock_irqsave(&dev->lock, flags); + + if (!list_empty(&dev->pending_data)) + { + smscore_buffer_t *cb = (smscore_buffer_t *) dev->pending_data.next; + + touser->offset = cb->offset_in_common + cb->offset; + touser->size = cb->size; + + list_del(&cb->entry); + + dev->currentcb = cb; + } + else + { + touser->offset = 0; + touser->size = 0; + } + + spin_unlock_irqrestore(&dev->lock, flags); + + return 0; +} + +int smschar_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +{ + smschar_device_t *dev = file->private_data; + void __user *up = (void __user *) arg; + + if (!dev->coredev || !dev->smsclient) + { + PERROR("no client\n"); + return -ENODEV; + } + + switch(cmd) + { + case SMSCHAR_SET_DEVICE_MODE: + return smscore_set_device_mode(dev->coredev, (int) arg); + + case SMSCHAR_GET_DEVICE_MODE: + { + if (put_user(smscore_get_device_mode(dev->coredev), (int*) up)) + return -EFAULT; + + break; + } + + case SMSCHAR_GET_BUFFER_SIZE: + { + if (put_user(smscore_get_common_buffer_size(dev->coredev), (int*) up)) + return -EFAULT; + + break; + } + + case SMSCHAR_WAIT_GET_BUFFER: + { + smschar_buffer_t touser; + int rc; + + rc = smschar_wait_get_buffer(dev, &touser); + if (rc < 0) + return rc; + + if (copy_to_user(up, &touser, sizeof(smschar_buffer_t))) + return -EFAULT; + + break; + } + + default: + return -ENOIOCTLCMD; + } + + return 0; +} + +struct file_operations smschar_fops = +{ + .owner = THIS_MODULE, + .read = smschar_read, + .write = smschar_write, + .open = smschar_open, + .release = smschar_release, + .mmap = smschar_mmap, + .ioctl = smschar_ioctl, +}; + +static int smschar_setup_cdev ( smschar_device_t *dev, int index ) +{ + int rc, devno = MKDEV ( smschar_major, smschar_minor + index ); + + cdev_init ( &dev->cdev, &smschar_fops ); + + dev->cdev.owner = THIS_MODULE; + dev->cdev.ops = &smschar_fops; + + kobject_set_name(&dev->cdev.kobj, "Siano_sms%d", index); + + rc = cdev_add ( &dev->cdev, devno, 1 ); + + PDEBUG("exiting %p %d, rc %d\n", dev, index, rc); + + return rc; +} + +/** + * smschar callback that called when device plugged in/out. the function + * register or unregisters char device interface according to plug in/out + * + * @param coredev pointer to device that is being plugged in/out + * @param device pointer to system device object + * @param arrival 1 on plug-on, 0 othewise + * + * @return 0 on success, <0 on error. + */ +int smschar_hotplug(smscore_device_t* coredev, struct device* device, int arrival) +{ + int rc = 0, i; + + PDEBUG("entering %d\n", arrival); + + if (arrival) + { + // currently only 1 instance supported + if (!g_smschar_inuse) + { + /* data notification callbacks assignment */ + memset ( smschar_devices, 0, SMSCHAR_NR_DEVS * sizeof ( smschar_device_t ) ); + + /* Initialize each device. */ + for (i = 0; i < SMSCHAR_NR_DEVS; i++) + { + smschar_setup_cdev ( &smschar_devices[i], i ); + + INIT_LIST_HEAD(&smschar_devices[i].pending_data); + spin_lock_init(&smschar_devices[i].lock); + init_waitqueue_head(&smschar_devices[i].waitq); + + smschar_devices[i].coredev = coredev; + smschar_devices[i].device_index = i; + } + + g_smschar_inuse = 1; + } + } + else + { + // currently only 1 instance supported + if (g_smschar_inuse) + { + /* Get rid of our char dev entries */ + for(i = 0; i < SMSCHAR_NR_DEVS; i++) + cdev_del(&smschar_devices[i].cdev); + + g_smschar_inuse = 0; + } + } + + PDEBUG("exiting, rc %d\n", rc); + + return rc; /* succeed */ +} + +int smschar_initialize(void) +{ + dev_t devno = MKDEV ( smschar_major, smschar_minor ); + int rc; + + if(smschar_major) + { + rc = register_chrdev_region ( devno, SMSCHAR_NR_DEVS, "smschar" ); + } + else + { + rc = alloc_chrdev_region ( &devno, smschar_minor, SMSCHAR_NR_DEVS, "smschar" ); + smschar_major = MAJOR ( devno ); + } + + if (rc < 0) + { + PWARNING ( "smschar: can't get major %d\n", smschar_major ); + return rc; + } + + return smscore_register_hotplug(smschar_hotplug); +} + +void smschar_terminate(void) +{ + dev_t devno = MKDEV ( smschar_major, smschar_minor ); + + unregister_chrdev_region(devno, SMSCHAR_NR_DEVS); + smscore_unregister_hotplug(smschar_hotplug); +} diff --git a/drivers/media/mdtv/smschar.h b/drivers/media/mdtv/smschar.h new file mode 100644 index 00000000000..1cd2f32a7f7 --- /dev/null +++ b/drivers/media/mdtv/smschar.h @@ -0,0 +1,7 @@ +#ifndef __smschar_h__ +#define __smschar_h__ + +extern int smschar_initialize(void); +extern void smschar_terminate(void); + +#endif // __smschar_h__ diff --git a/drivers/media/mdtv/smscharioctl.h b/drivers/media/mdtv/smscharioctl.h new file mode 100644 index 00000000000..e57b89efc49 --- /dev/null +++ b/drivers/media/mdtv/smscharioctl.h @@ -0,0 +1,17 @@ +#ifndef __smscharioctl_h__ +#define __smscharioctl_h__ + +#include <linux/ioctl.h> + +typedef struct _smschar_buffer_t +{ + unsigned long offset; // offset in common buffer (mapped to user space) + int size; +} smschar_buffer_t; + +#define SMSCHAR_SET_DEVICE_MODE _IOW('K', 0, int) +#define SMSCHAR_GET_DEVICE_MODE _IOR('K', 1, int) +#define SMSCHAR_GET_BUFFER_SIZE _IOR('K', 2, int) +#define SMSCHAR_WAIT_GET_BUFFER _IOR('K', 3, smschar_buffer_t) + +#endif // __smscharioctl_h__ diff --git a/drivers/media/mdtv/smscoreapi.c b/drivers/media/mdtv/smscoreapi.c new file mode 100644 index 00000000000..a354912391a --- /dev/null +++ b/drivers/media/mdtv/smscoreapi.c @@ -0,0 +1,1170 @@ +/*! + + \file smscoreapi.c + + \brief Siano core API module + This file contains implementation for the interface to sms core component + + \par Copyright (c), 2005-2008 Siano Mobile Silicon, Inc. + + \par This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 3 as + published by the Free Software Foundation; + + Software distributed under the License is distributed on an "AS + IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + implied. + + \author Anatoly Greenblat + +*/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <asm/io.h> + +#include "smskdefs.h" // device, page, scatterlist, kmutex + +#include <linux/firmware.h> + +#include "smscoreapi.h" +#include "smstypes.h" + +#include "smschar.h" + +typedef struct _smscore_device_notifyee +{ + struct list_head entry; + hotplug_t hotplug; +} smscore_device_notifyee_t; + +typedef struct _smscore_client +{ + struct list_head entry; + smscore_device_t *coredev; + + void *context; + + int data_type; + + onresponse_t onresponse_handler; + onremove_t onremove_handler; +} *psmscore_client_t; + +typedef struct _smscore_subclient +{ + struct list_head entry; + smscore_client_t *client; + + int id; +} smscore_subclient_t; + +typedef struct _smscore_device +{ + struct list_head entry; + + struct list_head clients; + struct list_head subclients; + spinlock_t clientslock; + + struct list_head buffers; + spinlock_t bufferslock; + int num_buffers; + + void *common_buffer; + int common_buffer_size; + dma_addr_t common_buffer_phys; + + void *context; + struct device *device; + + char devpath[32]; + unsigned long device_flags; + + setmode_t setmode_handler; + detectmode_t detectmode_handler; + sendrequest_t sendrequest_handler; + preload_t preload_handler; + postload_t postload_handler; + + int mode, modes_supported; + + struct completion version_ex_done, data_download_done, trigger_done; + struct completion init_device_done, reload_start_done, resume_done; +} *psmscore_device_t; + +typedef struct _smscore_registry_entry +{ + struct list_head entry; + char devpath[32]; + int mode; +} smscore_registry_entry_t; + +struct list_head g_smscore_notifyees; +struct list_head g_smscore_devices; +kmutex_t g_smscore_deviceslock; + +struct list_head g_smscore_registry; +kmutex_t g_smscore_registrylock; + +static int default_mode = 1; +module_param(default_mode, int, 0644); +MODULE_PARM_DESC(default_mode, "default firmware id (device mode)"); + +int smscore_registry_getmode(char* devpath) +{ + smscore_registry_entry_t *entry; + struct list_head *next; + + kmutex_lock(&g_smscore_registrylock); + + for (next = g_smscore_registry.next; next != &g_smscore_registry; next = next->next) + { + entry = (smscore_registry_entry_t *) next; + + if (!strcmp(entry->devpath, devpath)) + { + kmutex_unlock(&g_smscore_registrylock); + return entry->mode; + } + } + + entry = (smscore_registry_entry_t *) kmalloc(sizeof(smscore_registry_entry_t), GFP_KERNEL); + if (entry) + { + entry->mode = default_mode; + strcpy(entry->devpath, devpath); + + list_add(&entry->entry, &g_smscore_registry); + } + + kmutex_unlock(&g_smscore_registrylock); + + return default_mode; +} + +void smscore_registry_setmode(char* devpath, int mode) +{ + smscore_registry_entry_t *entry; + struct list_head *next; + + kmutex_lock(&g_smscore_registrylock); + + for (next = g_smscore_registry.next; next != &g_smscore_registry; next = next->next) + { + entry = (smscore_registry_entry_t *) next; + + if (!strcmp(entry->devpath, devpath)) + { + entry->mode = mode; + break; + } + } + + kmutex_unlock(&g_smscore_registrylock); +} + + +void list_add_locked(struct list_head *new, struct list_head *head, spinlock_t* lock) +{ + unsigned long flags; + + spin_lock_irqsave(lock, flags); + + list_add(new, head); + + spin_unlock_irqrestore(lock, flags); +} + +/** + * register a client callback that called when device plugged in/unplugged + * NOTE: if devices exist callback is called immediately for each device + * + * @param hotplug callback + * + * @return 0 on success, <0 on error. + */ +int smscore_register_hotplug(hotplug_t hotplug) +{ + smscore_device_notifyee_t *notifyee; + struct list_head *next, *first; + int rc = 0; + + kmutex_lock(&g_smscore_deviceslock); + + notifyee = kmalloc(sizeof(smscore_device_notifyee_t), GFP_KERNEL); + if (notifyee) + { + // now notify callback about existing devices + first = &g_smscore_devices; + for (next = first->next; next != first && !rc; next = next->next) + { + smscore_device_t *coredev = (smscore_device_t *) next; + rc = hotplug(coredev, coredev->device, 1); + } + + if (rc >= 0) + { + notifyee->hotplug = hotplug; + list_add(¬ifyee->entry, &g_smscore_notifyees); + } + else + kfree(notifyee); + } + else + rc = -ENOMEM; + + kmutex_unlock(&g_smscore_deviceslock); + + return rc; +} + +/** + * unregister a client callback that called when device plugged in/unplugged + * + * @param hotplug callback + * + */ +void smscore_unregister_hotplug(hotplug_t hotplug) +{ + struct list_head *next, *first; + + kmutex_lock(&g_smscore_deviceslock); + + first = &g_smscore_notifyees; + + for (next = first->next; next != first;) + { + smscore_device_notifyee_t *notifyee = (smscore_device_notifyee_t *) next; + next = next->next; + + if (notifyee->hotplug == hotplug) + { + list_del(¬ifyee->entry); + kfree(notifyee); + } + } + + kmutex_unlock(&g_smscore_deviceslock); +} + +void smscore_notify_clients(smscore_device_t *coredev) +{ + smscore_client_t* client; + + // the client must call smscore_unregister_client from remove handler + while (!list_empty(&coredev->clients)) + { + client = (smscore_client_t *) coredev->clients.next; + client->onremove_handler(client->context); + } +} + +int smscore_notify_callbacks(smscore_device_t *coredev, struct device *device, int arrival) +{ + struct list_head *next, *first; + int rc = 0; + + // note: must be called under g_deviceslock + + first = &g_smscore_notifyees; + + for (next = first->next; next != first; next = next->next) + { + rc = ((smscore_device_notifyee_t *) next)->hotplug(coredev, device, arrival); + if (rc < 0) + break; + } + + return rc; +} + +smscore_buffer_t *smscore_createbuffer(u8* buffer, void* common_buffer, dma_addr_t common_buffer_phys) +{ + smscore_buffer_t *cb = kmalloc(sizeof(smscore_buffer_t), GFP_KERNEL); + if (!cb) + { + printk(KERN_INFO "%s kmalloc(...) failed\n", __FUNCTION__); + return NULL; + } + + cb->p = buffer; + cb->offset_in_common = buffer - (u8*) common_buffer; + cb->phys = common_buffer_phys + cb->offset_in_common; + + return cb; +} + +/** + * creates coredev object for a device, prepares buffers, creates buffer mappings, notifies + * registered hotplugs about new device. + * + * @param params device pointer to struct with device specific parameters and handlers + * @param coredev pointer to a value that receives created coredev object + * + * @return 0 on success, <0 on error. + */ +int smscore_register_device(smsdevice_params_t *params, smscore_device_t **coredev) +{ + smscore_device_t* dev; + u8 *buffer; + + dev = kzalloc(sizeof(smscore_device_t), GFP_KERNEL); + if (!dev) + { + printk(KERN_INFO "%s kzalloc(...) failed\n", __FUNCTION__); + return -ENOMEM; + } + + // init list entry so it could be safe in smscore_unregister_device + INIT_LIST_HEAD(&dev->entry); + + // init queues + INIT_LIST_HEAD(&dev->clients); + INIT_LIST_HEAD(&dev->subclients); + INIT_LIST_HEAD(&dev->buffers); + + // init locks + spin_lock_init(&dev->clientslock); + spin_lock_init(&dev->bufferslock); + + // init completion events + init_completion(&dev->version_ex_done); + init_completion(&dev->data_download_done); + init_completion(&dev->trigger_done); + init_completion(&dev->init_device_done); + init_completion(&dev->reload_start_done); + init_completion(&dev->resume_done); + + // alloc common buffer + dev->common_buffer_size = params->buffer_size * params->num_buffers; + dev->common_buffer = dma_alloc_coherent(NULL, dev->common_buffer_size, &dev->common_buffer_phys, GFP_KERNEL | GFP_DMA); + if (!dev->common_buffer) + { + smscore_unregister_device(dev); + return -ENOMEM; + } + + // prepare dma buffers + for (buffer = dev->common_buffer; dev->num_buffers < params->num_buffers; dev->num_buffers ++, buffer += params->buffer_size) + { + smscore_buffer_t *cb = smscore_createbuffer(buffer, dev->common_buffer, dev->common_buffer_phys); + if (!cb) + { + smscore_unregister_device(dev); + return -ENOMEM; + } + + smscore_putbuffer(dev, cb); + } + + printk(KERN_INFO "%s allocated %d buffers\n", __FUNCTION__, dev->num_buffers); + + dev->mode = DEVICE_MODE_NONE; + dev->context = params->context; + dev->device = params->device; + dev->setmode_handler = params->setmode_handler; + dev->detectmode_handler = params->detectmode_handler; + dev->sendrequest_handler = params->sendrequest_handler; + dev->preload_handler = params->preload_handler; + dev->postload_handler = params->postload_handler; + + dev->device_flags = params->flags; + strcpy(dev->devpath, params->devpath); + + // add device to devices list + kmutex_lock(&g_smscore_deviceslock); + list_add(&dev->entry, &g_smscore_devices); + kmutex_unlock(&g_smscore_deviceslock); + + *coredev = dev; + + printk(KERN_INFO "%s device %p created\n", __FUNCTION__, dev); + + return 0; +} + +/** + * sets initial device mode and notifies client hotplugs that device is ready + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * + * @return 0 on success, <0 on error. + */ +int smscore_start_device(smscore_device_t *coredev) +{ + int rc = smscore_set_device_mode(coredev, smscore_registry_getmode(coredev->devpath)); + if (rc < 0) + return rc; + + kmutex_lock(&g_smscore_deviceslock); + + rc = smscore_notify_callbacks(coredev, coredev->device, 1); + + printk(KERN_INFO "%s device %p started, rc %d\n", __FUNCTION__, coredev, rc); + + kmutex_unlock(&g_smscore_deviceslock); + + return rc; +} + +int smscore_sendrequest_and_wait(smscore_device_t *coredev, void* buffer, size_t size, struct completion *completion) +{ + int rc = coredev->sendrequest_handler(coredev->context, buffer, size); + if (rc < 0) + return rc; + + return wait_for_completion_timeout(completion, msecs_to_jiffies(1000)) ? 0 : -ETIME; +} + +int smscore_load_firmware_family2(smscore_device_t *coredev, void *buffer, size_t size) +{ + SmsFirmware_ST* firmware = (SmsFirmware_ST*) buffer; + SmsMsgHdr_ST *msg; + UINT32 mem_address = firmware->StartAddress; + u8* payload = firmware->Payload; + int rc = 0; + + if (coredev->preload_handler) + { + rc = coredev->preload_handler(coredev->context); + if (rc < 0) + return rc; + } + + // PAGE_SIZE buffer shall be enough and dma aligned + msg = (SmsMsgHdr_ST *) kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA); + if (!msg) + return -ENOMEM; + + if (coredev->mode != DEVICE_MODE_NONE) + { + SMS_INIT_MSG(msg, MSG_SW_RELOAD_START_REQ, sizeof(SmsMsgHdr_ST)); + rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->reload_start_done); + mem_address = *(UINT32*) &payload[20]; + } + + while (size && rc >= 0) + { + SmsDataDownload_ST *DataMsg = (SmsDataDownload_ST *) msg; + int payload_size = min((int) size, SMS_MAX_PAYLOAD_SIZE); + + SMS_INIT_MSG(msg, MSG_SMS_DATA_DOWNLOAD_REQ, (UINT16)(sizeof(SmsMsgHdr_ST) + sizeof(UINT32) + payload_size)); + + DataMsg->MemAddr = mem_address; + memcpy(DataMsg->Payload, payload, payload_size); + + if (coredev->device_flags & SMS_ROM_NO_RESPONSE && coredev->mode == DEVICE_MODE_NONE) + rc = coredev->sendrequest_handler(coredev->context, DataMsg, DataMsg->xMsgHeader.msgLength); + else + rc = smscore_sendrequest_and_wait(coredev, DataMsg, DataMsg->xMsgHeader.msgLength, &coredev->data_download_done); + + payload += payload_size; + size -= payload_size; + mem_address += payload_size; + } + + if (rc >= 0) + { + if (coredev->mode == DEVICE_MODE_NONE) + { + SmsMsgData_ST* TriggerMsg = (SmsMsgData_ST*) msg; + + SMS_INIT_MSG(msg, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ, sizeof(SmsMsgHdr_ST) + sizeof(UINT32) * 5); + + TriggerMsg->msgData[0] = firmware->StartAddress; // Entry point + TriggerMsg->msgData[1] = 5; // Priority + TriggerMsg->msgData[2] = 0x200; // Stack size + TriggerMsg->msgData[3] = 0; // Parameter + TriggerMsg->msgData[4] = 4; // Task ID + + if (coredev->device_flags & SMS_ROM_NO_RESPONSE) + { + rc = coredev->sendrequest_handler(coredev->context, TriggerMsg, TriggerMsg->xMsgHeader.msgLength); + msleep(100); + } + else + rc = smscore_sendrequest_and_wait(coredev, TriggerMsg, TriggerMsg->xMsgHeader.msgLength, &coredev->trigger_done); + } + else + { + SMS_INIT_MSG(msg, MSG_SW_RELOAD_EXEC_REQ, sizeof(SmsMsgHdr_ST)); + + rc = coredev->sendrequest_handler(coredev->context, msg, msg->msgLength); + } + } + + printk("%s %d \n", __func__, rc); + + kfree(msg); + + return (rc >= 0 && coredev->postload_handler) ? + coredev->postload_handler(coredev->context) : + rc; +} + +/** + * loads specified firmware into a buffer and calls device loadfirmware_handler + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * @param filename null-terminated string specifies firmware file name + * @param loadfirmware_handler device handler that loads firmware + * + * @return 0 on success, <0 on error. + */ +int smscore_load_firmware(smscore_device_t *coredev, char* filename, loadfirmware_t loadfirmware_handler) +{ + int rc = -ENOENT; + + const struct firmware *fw; + u8* fw_buffer; + + if (loadfirmware_handler == NULL && !(coredev->device_flags & SMS_DEVICE_FAMILY2)) + return -EINVAL; + + rc = request_firmware(&fw, filename, coredev->device); + if (rc < 0) + { + printk(KERN_INFO "%s failed to open \"%s\"\n", __FUNCTION__, filename); + return rc; + } + + fw_buffer = kmalloc(ALIGN(fw->size, SMS_ALLOC_ALIGNMENT), GFP_KERNEL | GFP_DMA); + if (fw_buffer) + { + memcpy(fw_buffer, fw->data, fw->size); + + rc = (coredev->device_flags & SMS_DEVICE_FAMILY2) ? + smscore_load_firmware_family2(coredev, fw_buffer, fw->size) : + loadfirmware_handler(coredev->context, fw_buffer, fw->size); + + kfree(fw_buffer); + } + else + { + printk(KERN_INFO "%s failed to allocate firmware buffer\n", __FUNCTION__); + rc = -ENOMEM; + } + + release_firmware(fw); + + return rc; +} + +/** + * notifies all clients registered with the device, notifies hotplugs, frees all buffers and coredev object + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * + * @return 0 on success, <0 on error. + */ +void smscore_unregister_device(smscore_device_t *coredev) +{ + smscore_buffer_t *cb; + int num_buffers = 0; + + kmutex_lock(&g_smscore_deviceslock); + + smscore_notify_clients(coredev); + smscore_notify_callbacks(coredev, NULL, 0); + + // at this point all buffers should be back + // onresponse must no longer be called + + while (1) + { + while ((cb = smscore_getbuffer(coredev))) + { + kfree(cb); + num_buffers ++; + } + + if (num_buffers == coredev->num_buffers) + break; + + printk(KERN_INFO "%s waiting for %d buffer(s)\n", __FUNCTION__, coredev->num_buffers - num_buffers); + msleep(100); + } + + printk(KERN_INFO "%s freed %d buffers\n", __FUNCTION__, num_buffers); + + if (coredev->common_buffer) + dma_free_coherent(NULL, coredev->common_buffer_size, coredev->common_buffer, coredev->common_buffer_phys); + + list_del(&coredev->entry); + kfree(coredev); + + kmutex_unlock(&g_smscore_deviceslock); + + printk(KERN_INFO "%s device %p destroyed\n", __FUNCTION__, coredev); +} + +int smscore_detect_mode(smscore_device_t *coredev) +{ + void *buffer = kmalloc(sizeof(SmsMsgHdr_ST) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); + SmsMsgHdr_ST *msg = (SmsMsgHdr_ST *) SMS_ALIGN_ADDRESS(buffer); + int rc; + + if (!buffer) + return -ENOMEM; + + SMS_INIT_MSG(msg, MSG_SMS_GET_VERSION_EX_REQ, sizeof(SmsMsgHdr_ST)); + + rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->version_ex_done); + if (rc == -ETIME) + { + printk("%s: MSG_SMS_GET_VERSION_EX_REQ failed first try\n", __FUNCTION__); + + if (wait_for_completion_timeout(&coredev->resume_done, msecs_to_jiffies(5000))) + { + rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->version_ex_done); + if (rc < 0) + { + printk("%s: MSG_SMS_GET_VERSION_EX_REQ failed second try, rc %d\n", __FUNCTION__, rc); + } + } + else + rc = -ETIME; + } + + kfree(buffer); + + return rc; +} + +char *smscore_fw_lkup[] = +{ + "dvb_nova_12mhz.inp", + "dvb_nova_12mhz.inp", + "tdmb_nova.inp", + "none", + "dvb_nova_12mhz.inp", + "isdbt_nova_12mhz.inp", + "isdbt_nova_12mhz.inp", + "cmmb_nova_12mhz.inp", + "none", +}; + +/** + * calls device handler to change mode of operation + * NOTE: stellar/usb may disconnect when changing mode + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * @param mode requested mode of operation + * + * @return 0 on success, <0 on error. + */ +int smscore_set_device_mode(smscore_device_t *coredev, int mode) +{ + void *buffer; + int rc = 0; + + if (coredev->device_flags & SMS_DEVICE_FAMILY2) + { + if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) + { + printk(KERN_INFO "%s invalid mode specified %d\n", __FUNCTION__, mode); + return -EINVAL; + } + + if (!(coredev->device_flags & SMS_DEVICE_NOT_READY)) + { + rc = smscore_detect_mode(coredev); + if (rc < 0) + return rc; + } + + if (coredev->mode == mode) + { + printk(KERN_INFO "%s device mode %d already set\n", __FUNCTION__, mode); + return 0; + } + + if (!(coredev->modes_supported & (1 << mode))) + { + rc = smscore_load_firmware(coredev, smscore_fw_lkup[mode], NULL); + if (rc < 0) + return rc; + } + else + { + printk(KERN_INFO "%s mode %d supported by running firmware\n", __FUNCTION__, mode); + } + + buffer = kmalloc(sizeof(SmsMsgData_ST) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); + if (buffer) + { + SmsMsgData_ST *msg = (SmsMsgData_ST *) SMS_ALIGN_ADDRESS(buffer); + + SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ, sizeof(SmsMsgData_ST)); + msg->msgData[0] = mode; + + rc = smscore_sendrequest_and_wait(coredev, msg, msg->xMsgHeader.msgLength, &coredev->init_device_done); + + kfree(buffer); + } + else + rc = -ENOMEM; + } + else + { + if (coredev->detectmode_handler) + coredev->detectmode_handler(coredev->context, &coredev->mode); + + if (coredev->mode != mode && coredev->setmode_handler) + rc = coredev->setmode_handler(coredev->context, mode); + } + + smscore_registry_setmode(coredev->devpath, mode); + + if (rc >= 0) + { + coredev->mode = mode; + coredev->device_flags &= ~SMS_DEVICE_NOT_READY; + } + + return rc; +} + +/** + * calls device handler to get current mode of operation + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * + * @return current mode + */ +int smscore_get_device_mode(smscore_device_t *coredev) +{ + return coredev->mode; +} + +smscore_client_t* smscore_getclient_by_type(smscore_device_t *coredev, int data_type) +{ + smscore_client_t *client = NULL; + struct list_head *next, *first; + unsigned long flags; + + if (!data_type) + return NULL; + + spin_lock_irqsave(&coredev->clientslock, flags); + + first = &coredev->clients; + + for (next = first->next; next != first; next = next->next) + { + if (((smscore_client_t*) next)->data_type == data_type) + { + client = (smscore_client_t*) next; + break; + } + } + + spin_unlock_irqrestore(&coredev->clientslock, flags); + + return client; +} + +smscore_client_t* smscore_getclient_by_id(smscore_device_t *coredev, int id) +{ + smscore_client_t *client = NULL; + struct list_head *next, *first; + unsigned long flags; + + spin_lock_irqsave(&coredev->clientslock, flags); + + first = &coredev->subclients; + + for (next = first->next; next != first; next = next->next) + { + if (((smscore_subclient_t*) next)->id == id) + { + client = ((smscore_subclient_t*) next)->client; + break; + } + } + + spin_unlock_irqrestore(&coredev->clientslock, flags); + + return client; +} + +/** + * find client by response id/type, call clients onresponse handler + * return buffer to pool on error + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * @param cb pointer to response buffer descriptor + * + */ +void smscore_onresponse(smscore_device_t *coredev, smscore_buffer_t *cb) +{ + SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)((u8*) cb->p + cb->offset); + smscore_client_t * client = smscore_getclient_by_type(coredev, phdr->msgType); + int rc = -EBUSY; + + static unsigned long last_sample_time = 0; + static int data_total = 0; + unsigned long time_now = jiffies_to_msecs(jiffies); + + if (!last_sample_time) + last_sample_time = time_now; + + if (time_now - last_sample_time > 10000) + { + printk("\n%s data rate %d bytes/secs\n", __func__, (int)((data_total * 1000) / (time_now - last_sample_time))); + + last_sample_time = time_now; + data_total = 0; + } + + data_total += cb->size; + + if (!client) + client = smscore_getclient_by_id(coredev, phdr->msgDstId); + + if (client) + rc = client->onresponse_handler(client->context, cb); + + if (rc < 0) + { + switch (phdr->msgType) + { + case MSG_SMS_GET_VERSION_EX_RES: + { + SmsVersionRes_ST *ver = (SmsVersionRes_ST*) phdr; + printk("%s: MSG_SMS_GET_VERSION_EX_RES id %d prots 0x%x ver %d.%d\n", __FUNCTION__, ver->FirmwareId, ver->SupportedProtocols, ver->RomVersionMajor, ver->RomVersionMinor); + + coredev->mode = ver->FirmwareId == 255 ? DEVICE_MODE_NONE : ver->FirmwareId; + coredev->modes_supported = ver->SupportedProtocols; + + complete(&coredev->version_ex_done); + break; + } + + case MSG_SMS_INIT_DEVICE_RES: + printk("%s: MSG_SMS_INIT_DEVICE_RES\n", __FUNCTION__); + complete(&coredev->init_device_done); + break; + + case MSG_SW_RELOAD_START_RES: + printk("%s: MSG_SW_RELOAD_START_RES\n", __FUNCTION__); + complete(&coredev->reload_start_done); + break; + + case MSG_SMS_DATA_DOWNLOAD_RES: + complete(&coredev->data_download_done); + break; + + case MSG_SW_RELOAD_EXEC_RES: + printk("%s: MSG_SW_RELOAD_EXEC_RES\n", __FUNCTION__); + break; + + case MSG_SMS_SWDOWNLOAD_TRIGGER_RES: + printk("%s: MSG_SMS_SWDOWNLOAD_TRIGGER_RES\n", __FUNCTION__); + complete(&coredev->trigger_done); + break; + + case MSG_SMS_SLEEP_RESUME_COMP_IND: + complete(&coredev->resume_done); + break; + + default: + printk(KERN_INFO "%s no client (%p) or error (%d), type:%d dstid:%d\n", __FUNCTION__, client, rc, phdr->msgType, phdr->msgDstId); + } + + smscore_putbuffer(coredev, cb); + } +} + +/** + * return pointer to next free buffer descriptor from core pool + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * + * @return pointer to descriptor on success, NULL on error. + */ +smscore_buffer_t *smscore_getbuffer(smscore_device_t *coredev) +{ + smscore_buffer_t *cb = NULL; + unsigned long flags; + + spin_lock_irqsave(&coredev->bufferslock, flags); + + if (!list_empty(&coredev->buffers)) + { + cb = (smscore_buffer_t *) coredev->buffers.next; + list_del(&cb->entry); + } + + spin_unlock_irqrestore(&coredev->bufferslock, flags); + + return cb; +} + +/** + * return buffer descriptor to a pool + * + * @param coredev pointer to a coredev object returned by smscore_register_device + * @param cb pointer buffer descriptor + * + */ +void smscore_putbuffer(smscore_device_t *coredev, smscore_buffer_t *cb) +{ + list_add_locked(&cb->entry, &coredev->buffers, &coredev->bufferslock); +} + +int smscore_validate_client(smscore_device_t *coredev, smscore_client_t *client, int id) +{ + smscore_client_t *existing_client; + smscore_subclient_t *subclient; + + if (!id) + return 0; + + existing_client = smscore_getclient_by_id(coredev, id); + if (existing_client == client) + return 0; + + if (existing_client) + return -EBUSY; + + subclient = kzalloc(sizeof(smscore_subclient_t), GFP_KERNEL); + if (!subclient) + return -ENOMEM; + + subclient->client = client; + subclient->id = id; + + list_add_locked(&subclient->entry, &coredev->subclients, &coredev->clientslock); + + return 0; +} + +/** + * creates smsclient object, check that id is taken by another client + * + * @param coredev pointer to a coredev object from clients hotplug + * @param initial_id all messages with this id would be sent to this client + * @param data_type all messages of this type would be sent to this client + * @param onresponse_handler client handler that is called to process incoming messages + * @param onremove_handler client handler that is called when device is removed + * @param context client-specific context + * @param client pointer to a value that receives created smsclient object + * + * @return 0 on success, <0 on error. + */ +int smscore_register_client(smscore_device_t *coredev, smsclient_params_t *params, smscore_client_t **client) +{ + smscore_client_t* newclient; + int rc; + + // check that no other channel with same data type exists + if (params->data_type && smscore_getclient_by_type(coredev, params->data_type)) + return -EEXIST; + + newclient = kzalloc(sizeof(smscore_client_t), GFP_KERNEL); + if (!newclient) + return -ENOMEM; + + // check that no other channel with same id exists + rc = smscore_validate_client(coredev, newclient, params->initial_id); + if (rc < 0) + { + kfree(newclient); + return rc; + } + + newclient->coredev = coredev; + newclient->data_type = params->data_type; + newclient->onresponse_handler = params->onresponse_handler; + newclient->onremove_handler = params->onremove_handler; + newclient->context = params->context; + + list_add_locked(&newclient->entry, &coredev->clients, &coredev->clientslock); + + *client = newclient; + + printk(KERN_INFO "%s %p %d %d\n", __FUNCTION__, params->context, params->data_type, params->initial_id); + + return 0; +} + +/** + * frees smsclient object and all subclients associated with it + * + * @param client pointer to smsclient object returned by smscore_register_client + * + */ +void smscore_unregister_client(smscore_client_t *client) +{ + smscore_device_t *coredev = client->coredev; + struct list_head *next, *first; + unsigned long flags; + + spin_lock_irqsave(&coredev->clientslock, flags); + + first = &coredev->subclients; + + for (next = first->next; next != first;) + { + smscore_subclient_t *subclient = (smscore_subclient_t *) next; + next = next->next; + + if (subclient->client == client) + { + list_del(&subclient->entry); + kfree(subclient); + } + } + + printk(KERN_INFO "%s %p %d\n", __FUNCTION__, client->context, client->data_type); + + list_del(&client->entry); + kfree(client); + + spin_unlock_irqrestore(&coredev->clientslock, flags); +} + +/** + * verifies that source id is not taken by another client, + * calls device handler to send requests to the device + * + * @param client pointer to smsclient object returned by smscore_register_client + * @param buffer pointer to a request buffer + * @param size size (in bytes) of request buffer + * + * @return 0 on success, <0 on error. + */ +int smsclient_sendrequest(smscore_client_t *client, void *buffer, size_t size) +{ + smscore_device_t* coredev = client->coredev; + SmsMsgHdr_ST* phdr = (SmsMsgHdr_ST*) buffer; + + // check that no other channel with same id exists + int rc = smscore_validate_client(client->coredev, client, phdr->msgSrcId); + if (rc < 0) + return rc; + + return coredev->sendrequest_handler(coredev->context, buffer, size); +} + +/** + * return the size of large (common) buffer + * + * @param coredev pointer to a coredev object from clients hotplug + * + * @return size (in bytes) of the buffer + */ +int smscore_get_common_buffer_size(smscore_device_t *coredev) +{ + return coredev->common_buffer_size; +} + +/** + * maps common buffer (if supported by platform) + * + * @param coredev pointer to a coredev object from clients hotplug + * @param vma pointer to vma struct from mmap handler + * + * @return 0 on success, <0 on error. + */ +int smscore_map_common_buffer(smscore_device_t *coredev, struct vm_area_struct * vma) +{ + unsigned long end = vma->vm_end, start = vma->vm_start, size = PAGE_ALIGN(coredev->common_buffer_size); + + if (!(vma->vm_flags & (VM_READ | VM_SHARED)) || (vma->vm_flags & VM_WRITE)) + { + printk(KERN_INFO "%s invalid vm flags\n", __FUNCTION__); + return -EINVAL; + } + + if ((end - start) != size) + { + printk(KERN_INFO "%s invalid size %d expected %d\n", __FUNCTION__, (int)(end - start), (int) size); + return -EINVAL; + } + + if (remap_pfn_range(vma, start, coredev->common_buffer_phys >> PAGE_SHIFT, size, pgprot_noncached(vma->vm_page_prot))) + { + printk(KERN_INFO "%s remap_page_range failed\n", __FUNCTION__); + return -EAGAIN; + } + + return 0; +} + +int smscore_module_init(void) +{ + int rc; + + INIT_LIST_HEAD(&g_smscore_notifyees); + INIT_LIST_HEAD(&g_smscore_devices); + kmutex_init(&g_smscore_deviceslock); + + INIT_LIST_HEAD(&g_smscore_registry); + kmutex_init(&g_smscore_registrylock); + + rc = smschar_initialize(); + + printk(KERN_INFO "%s, rc %d\n", __FUNCTION__, rc); + + return rc; +} + +void smscore_module_exit(void) +{ + smschar_terminate(); + + kmutex_lock(&g_smscore_deviceslock); + while (!list_empty(&g_smscore_notifyees)) + { + smscore_device_notifyee_t *notifyee = (smscore_device_notifyee_t *) g_smscore_notifyees.next; + + list_del(¬ifyee->entry); + kfree(notifyee); + } + kmutex_unlock(&g_smscore_deviceslock); + + kmutex_lock(&g_smscore_registrylock); + while (!list_empty(&g_smscore_registry)) + { + smscore_registry_entry_t *entry = (smscore_registry_entry_t *) g_smscore_registry.next; + + list_del(&entry->entry); + kfree(entry); + } + kmutex_unlock(&g_smscore_registrylock); + + printk(KERN_INFO "%s\n", __FUNCTION__); +} + +module_init(smscore_module_init); +module_exit(smscore_module_exit); + +MODULE_DESCRIPTION("smscore"); +MODULE_AUTHOR("Anatoly Greenblatt,,, (anatolyg@siano-ms.com)"); +MODULE_LICENSE("GPL"); + +EXPORT_SYMBOL(smscore_registry_setmode); +EXPORT_SYMBOL(smscore_registry_getmode); +EXPORT_SYMBOL(smscore_register_hotplug); +EXPORT_SYMBOL(smscore_unregister_hotplug); +EXPORT_SYMBOL(smscore_register_device); +EXPORT_SYMBOL(smscore_unregister_device); +EXPORT_SYMBOL(smscore_start_device); +EXPORT_SYMBOL(smscore_load_firmware); +EXPORT_SYMBOL(smscore_set_device_mode); +EXPORT_SYMBOL(smscore_get_device_mode); +EXPORT_SYMBOL(smscore_register_client); +EXPORT_SYMBOL(smscore_unregister_client); +EXPORT_SYMBOL(smsclient_sendrequest); +EXPORT_SYMBOL(smscore_onresponse); +EXPORT_SYMBOL(smscore_get_common_buffer_size); +EXPORT_SYMBOL(smscore_map_common_buffer); +EXPORT_SYMBOL(smscore_getbuffer); +EXPORT_SYMBOL(smscore_putbuffer); diff --git a/drivers/media/mdtv/smscoreapi.h b/drivers/media/mdtv/smscoreapi.h new file mode 100644 index 00000000000..a8c025f74eb --- /dev/null +++ b/drivers/media/mdtv/smscoreapi.h @@ -0,0 +1,101 @@ +#ifndef __smscoreapi_h__ +#define __smscoreapi_h__ + +#ifndef min +#define min(a,b) (((a) < (b)) ? (a) : (b)) +#endif + +#define SMS_ALLOC_ALIGNMENT 128 +#define SMS_DMA_ALIGNMENT 16 +#define SMS_ALIGN_ADDRESS(addr) ((((u32)(addr)) + (SMS_DMA_ALIGNMENT-1)) & ~(SMS_DMA_ALIGNMENT-1)) + +#define SMS_DEVICE_FAMILY2 1 +#define SMS_ROM_NO_RESPONSE 2 +#define SMS_DEVICE_NOT_READY 0x8000000 + +typedef struct _smscore_device smscore_device_t; +typedef struct _smscore_client smscore_client_t; +typedef struct _smscore_buffer smscore_buffer_t; + +typedef int (*hotplug_t)(smscore_device_t *coredev, struct device *device, int arrival); + +typedef int (*setmode_t)(void *context, int mode); +typedef void (*detectmode_t)(void *context, int *mode); +typedef int (*sendrequest_t)(void *context, void *buffer, size_t size); +typedef int (*loadfirmware_t)(void *context, void *buffer, size_t size); +typedef int (*preload_t)(void *context); +typedef int (*postload_t)(void *context); + +typedef int (*onresponse_t)(void *context, smscore_buffer_t *cb); +typedef void (*onremove_t)(void *context); + +typedef struct _smscore_buffer +{ + // public members, once passed to clients can be changed freely + struct list_head entry; + int size; + int offset; + + // private members, read-only for clients + void *p; + dma_addr_t phys; + unsigned long offset_in_common; +} *psmscore_buffer_t; + +typedef struct _smsdevice_params +{ + struct device *device; + + int buffer_size; + int num_buffers; + + char devpath[32]; + unsigned long flags; + + setmode_t setmode_handler; + detectmode_t detectmode_handler; + sendrequest_t sendrequest_handler; + preload_t preload_handler; + postload_t postload_handler; + + void *context; +} smsdevice_params_t; + +typedef struct _smsclient_params +{ + int initial_id; + int data_type; + onresponse_t onresponse_handler; + onremove_t onremove_handler; + + void *context; +} smsclient_params_t; + +extern void smscore_registry_setmode(char *devpath, int mode); +extern int smscore_registry_getmode(char *devpath); + +extern int smscore_register_hotplug(hotplug_t hotplug); +extern void smscore_unregister_hotplug(hotplug_t hotplug); + +extern int smscore_register_device(smsdevice_params_t *params, smscore_device_t **coredev); +extern void smscore_unregister_device(smscore_device_t *coredev); + +extern int smscore_start_device(smscore_device_t *coredev); +extern int smscore_load_firmware(smscore_device_t *coredev, char* filename, loadfirmware_t loadfirmware_handler); + +extern int smscore_set_device_mode(smscore_device_t *coredev, int mode); +extern int smscore_get_device_mode(smscore_device_t *coredev); + +extern int smscore_register_client(smscore_device_t *coredev, smsclient_params_t* params, smscore_client_t **client); +extern void smscore_unregister_client(smscore_client_t *client); + +extern int smsclient_sendrequest(smscore_client_t *client, void *buffer, size_t size); +extern void smscore_onresponse(smscore_device_t *coredev, smscore_buffer_t *cb); + +extern int smscore_get_common_buffer_size(smscore_device_t *coredev); +extern int smscore_map_common_buffer(smscore_device_t *coredev, struct vm_area_struct * vma); + +extern smscore_buffer_t *smscore_getbuffer(smscore_device_t *coredev); +extern void smscore_putbuffer(smscore_device_t *coredev, smscore_buffer_t *cb); + +#endif // __smscoreapi_h__ diff --git a/drivers/media/mdtv/smsdvb.c b/drivers/media/mdtv/smsdvb.c new file mode 100644 index 00000000000..f2ed1718d18 --- /dev/null +++ b/drivers/media/mdtv/smsdvb.c @@ -0,0 +1,438 @@ +#include <linux/module.h> +#include <linux/init.h> + +#include "dmxdev.h" +#include "dvbdev.h" +#include "dvb_demux.h" +#include "dvb_frontend.h" + +#include "smskdefs.h" // page, scatterlist, kmutex +#include "smscoreapi.h" +#include "smstypes.h" + +typedef struct _smsdvb_client +{ + struct list_head entry; + + smscore_device_t *coredev; + smscore_client_t *smsclient; + + struct dvb_adapter adapter; + struct dvb_demux demux; + struct dmxdev dmxdev; + struct dvb_frontend frontend; + + fe_status_t fe_status; + int fe_ber, fe_snr, fe_signal_strength; + + struct completion tune_done, stat_done; + + // todo: save freq/band instead whole struct + struct dvb_frontend_parameters fe_params; + +} smsdvb_client_t; + +struct list_head g_smsdvb_clients; +kmutex_t g_smsdvb_clientslock; + +int smsdvb_onresponse(void *context, smscore_buffer_t *cb) +{ + smsdvb_client_t *client = (smsdvb_client_t *) context; + SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)(((u8*) cb->p) + cb->offset); + + switch(phdr->msgType) + { + case MSG_SMS_DVBT_BDA_DATA: + dvb_dmx_swfilter(&client->demux, (u8*)(phdr + 1), cb->size - sizeof(SmsMsgHdr_ST)); + break; + + case MSG_SMS_RF_TUNE_RES: + complete(&client->tune_done); + break; + + case MSG_SMS_GET_STATISTICS_RES: + { + SmsMsgStatisticsInfo_ST* p = (SmsMsgStatisticsInfo_ST*)(phdr + 1); + + if (p->Stat.IsDemodLocked) + { + client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + client->fe_snr = p->Stat.SNR; + client->fe_ber = p->Stat.BER; + + if (p->Stat.InBandPwr < -95) + client->fe_signal_strength = 0; + else if (p->Stat.InBandPwr > -29) + client->fe_signal_strength = 100; + else + client->fe_signal_strength = (p->Stat.InBandPwr + 95) * 3 / 2; + } + else + { + client->fe_status = 0; + client->fe_snr = + client->fe_ber = + client->fe_signal_strength = 0; + } + + complete(&client->stat_done); + break; + } + } + + smscore_putbuffer(client->coredev, cb); + + return 0; +} + +void smsdvb_unregister_client(smsdvb_client_t* client) +{ + // must be called under clientslock + + list_del(&client->entry); + + smscore_unregister_client(client->smsclient); + dvb_unregister_frontend(&client->frontend); + dvb_dmxdev_release(&client->dmxdev); + dvb_dmx_release(&client->demux); + dvb_unregister_adapter(&client->adapter); + kfree(client); +} + +void smsdvb_onremove(void *context) +{ + kmutex_lock(&g_smsdvb_clientslock); + + smsdvb_unregister_client((smsdvb_client_t*) context); + + kmutex_unlock(&g_smsdvb_clientslock); +} + +static int smsdvb_start_feed(struct dvb_demux_feed *feed) +{ + smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux); + SmsMsgData_ST PidMsg; + + printk("%s add pid %d(%x)\n", __FUNCTION__, feed->pid, feed->pid); + + PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; + PidMsg.xMsgHeader.msgDstId = HIF_TASK; + PidMsg.xMsgHeader.msgFlags = 0; + PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ; + PidMsg.xMsgHeader.msgLength = sizeof(PidMsg); + PidMsg.msgData[0] = feed->pid; + + return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg)); +} + +static int smsdvb_stop_feed(struct dvb_demux_feed *feed) +{ + smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux); + SmsMsgData_ST PidMsg; + + printk("%s remove pid %d(%x)\n", __FUNCTION__, feed->pid, feed->pid); + + PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; + PidMsg.xMsgHeader.msgDstId = HIF_TASK; + PidMsg.xMsgHeader.msgFlags = 0; + PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ; + PidMsg.xMsgHeader.msgLength = sizeof(PidMsg); + PidMsg.msgData[0] = feed->pid; + + return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg)); +} + +static int smsdvb_sendrequest_and_wait(smsdvb_client_t *client, void* buffer, size_t size, struct completion *completion) +{ + int rc = smsclient_sendrequest(client->smsclient, buffer, size); + if (rc < 0) + return rc; + + return wait_for_completion_timeout(completion, msecs_to_jiffies(2000)) ? 0 : -ETIME; +} + +static int smsdvb_send_statistics_request(smsdvb_client_t *client) +{ + SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ, DVBT_BDA_CONTROL_MSG_ID, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 }; + return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->stat_done); +} + +static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat) +{ + smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); + int rc = smsdvb_send_statistics_request(client); + + if (!rc) + *stat = client->fe_status; + + return rc; +} + +static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); + int rc = smsdvb_send_statistics_request(client); + + if (!rc) + *ber = client->fe_ber; + + return rc; +} + +static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); + int rc = smsdvb_send_statistics_request(client); + + if (!rc) + *strength = client->fe_signal_strength; + + return rc; +} + +static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); + int rc = smsdvb_send_statistics_request(client); + + if (!rc) + *snr = client->fe_snr; + + return rc; +} + +static int smsdvb_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune) +{ + printk("%s\n", __FUNCTION__); + + tune->min_delay_ms = 400; + tune->step_size = 250000; + tune->max_drift = 0; + return 0; +} + +static int smsdvb_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) +{ + smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); + + struct + { + SmsMsgHdr_ST Msg; + u32 Data[3]; + } Msg; + + Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; + Msg.Msg.msgDstId = HIF_TASK; + Msg.Msg.msgFlags = 0; + Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ; + Msg.Msg.msgLength = sizeof(Msg); + Msg.Data[0] = fep->frequency; + Msg.Data[2] = 12000000; + + printk("%s freq %d band %d\n", __FUNCTION__, fep->frequency, fep->u.ofdm.bandwidth); + + switch(fep->u.ofdm.bandwidth) + { + case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break; + case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break; + case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break; +// case BANDWIDTH_5_MHZ: Msg.Data[1] = BW_5_MHZ; break; + case BANDWIDTH_AUTO: return -EOPNOTSUPP; + default: return -EINVAL; + } + + return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->tune_done); +} + +static int smsdvb_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) +{ + smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend); + + printk("%s\n", __FUNCTION__); + + // todo: + memcpy(fep, &client->fe_params, sizeof(struct dvb_frontend_parameters)); + return 0; +} + +static void smsdvb_release(struct dvb_frontend *fe) +{ + // do nothing +} + +static struct dvb_frontend_ops smsdvb_fe_ops = { + .info = { + .name = "Siano Mobile Digital SMS10xx", + .type = FE_OFDM, + .frequency_min = 44250000, + .frequency_max = 867250000, + .frequency_stepsize = 250000, + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_RECOVER | + FE_CAN_HIERARCHY_AUTO, + }, + + .release = smsdvb_release, + + .set_frontend = smsdvb_set_frontend, + .get_frontend = smsdvb_get_frontend, + .get_tune_settings = smsdvb_get_tune_settings, + + .read_status = smsdvb_read_status, + .read_ber = smsdvb_read_ber, + .read_signal_strength = smsdvb_read_signal_strength, + .read_snr = smsdvb_read_snr, +}; + +int smsdvb_hotplug(smscore_device_t *coredev, struct device* device, int arrival) +{ + smsclient_params_t params; + smsdvb_client_t* client; + int rc; + + // device removal handled by onremove callback + if (!arrival) + return 0; + + if (smscore_get_device_mode(coredev) != 4) + { + rc = smscore_set_device_mode(coredev, 4); + if (rc < 0) + return rc; + } + + client = kzalloc(sizeof(smsdvb_client_t), GFP_KERNEL); + if (!client) + { + printk(KERN_INFO "%s kmalloc() failed\n", __FUNCTION__); + return -ENOMEM; + } + + // register dvb adapter + rc = dvb_register_adapter(&client->adapter, "Siano Digital Receiver", THIS_MODULE, device); + if (rc < 0) + { + printk("%s dvb_register_adapter() failed %d\n", __func__, rc); + goto adapter_error; + } + + // init dvb demux + client->demux.dmx.capabilities = DMX_TS_FILTERING; + client->demux.filternum = 32; // todo: nova ??? + client->demux.feednum = 32; + client->demux.start_feed = smsdvb_start_feed; + client->demux.stop_feed = smsdvb_stop_feed; + + rc = dvb_dmx_init(&client->demux); + if (rc < 0) + { + printk("%s dvb_dmx_init failed %d\n\n", __FUNCTION__, rc); + goto dvbdmx_error; + } + + // init dmxdev + client->dmxdev.filternum = 32; + client->dmxdev.demux = &client->demux.dmx; + client->dmxdev.capabilities = 0; + + rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter); + if (rc < 0) + { + printk("%s dvb_dmxdev_init failed %d\n", __FUNCTION__, rc); + goto dmxdev_error; + } + + // init and register frontend + memcpy(&client->frontend.ops, &smsdvb_fe_ops, sizeof(struct dvb_frontend_ops)); + + rc = dvb_register_frontend(&client->adapter, &client->frontend); + if (rc < 0) + { + printk("%s frontend registration failed %d\n", __FUNCTION__, rc); + goto frontend_error; + } + + params.initial_id = 0; + params.data_type = MSG_SMS_DVBT_BDA_DATA; + params.onresponse_handler = smsdvb_onresponse; + params.onremove_handler = smsdvb_onremove; + params.context = client; + + rc = smscore_register_client(coredev, ¶ms, &client->smsclient); + if (rc < 0) + { + printk(KERN_INFO "%s smscore_register_client() failed %d\n", __FUNCTION__, rc); + goto client_error; + } + + client->coredev = coredev; + + init_completion(&client->tune_done); + init_completion(&client->stat_done); + + kmutex_lock(&g_smsdvb_clientslock); + + list_add(&client->entry, &g_smsdvb_clients); + + kmutex_unlock(&g_smsdvb_clientslock); + + printk(KERN_INFO "%s success\n", __FUNCTION__); + + return 0; + +client_error: + dvb_unregister_frontend(&client->frontend); + +frontend_error: + dvb_dmxdev_release(&client->dmxdev); + +dmxdev_error: + dvb_dmx_release(&client->demux); + +dvbdmx_error: + dvb_unregister_adapter(&client->adapter); + +adapter_error: + kfree(client); + return rc; +} + +int smsdvb_module_init(void) +{ + int rc; + + INIT_LIST_HEAD(&g_smsdvb_clients); + kmutex_init(&g_smsdvb_clientslock); + + rc = smscore_register_hotplug(smsdvb_hotplug); + + printk(KERN_INFO "%s, rc %d\n", __FUNCTION__, rc); + + return rc; +} + +void smsdvb_module_exit(void) +{ + smscore_unregister_hotplug(smsdvb_hotplug); + + kmutex_lock(&g_smsdvb_clientslock); + + while (!list_empty(&g_smsdvb_clients)) + smsdvb_unregister_client((smsdvb_client_t*) g_smsdvb_clients.next); + + kmutex_unlock(&g_smsdvb_clientslock); + + printk(KERN_INFO "%s\n", __FUNCTION__); +} + +module_init(smsdvb_module_init); +module_exit(smsdvb_module_exit); + +MODULE_DESCRIPTION("smsdvb dvb-api module"); +MODULE_AUTHOR("Anatoly Greenblatt,,, (anatolyg@siano-ms.com)"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/mdtv/smskdefs.h b/drivers/media/mdtv/smskdefs.h new file mode 100644 index 00000000000..6874fbcdc7a --- /dev/null +++ b/drivers/media/mdtv/smskdefs.h @@ -0,0 +1,21 @@ +#ifndef __smskdefs_h__ +#define __smskdefs_h__ + +#include <linux/version.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/mm.h> +#include <asm/scatterlist.h> +#include <asm/page.h> + +#include <linux/mutex.h> + +typedef struct mutex kmutex_t; + +#define kmutex_init(_p_) mutex_init(_p_) +#define kmutex_lock(_p_) mutex_lock(_p_) +#define kmutex_trylock(_p_) mutex_trylock(_p_) +#define kmutex_unlock(_p_) mutex_unlock(_p_) + + +#endif // __smskdefs_h__ diff --git a/drivers/media/mdtv/smsnet.c b/drivers/media/mdtv/smsnet.c new file mode 100644 index 00000000000..5b70d1261e5 --- /dev/null +++ b/drivers/media/mdtv/smsnet.c @@ -0,0 +1,447 @@ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/netdevice.h> /* struct device, and other headers */ +#include <linux/etherdevice.h> /* eth_type_trans */ +#include <linux/ip.h> /* struct iphdr */ +#include <linux/ipv6.h> /* struct ipv6hdr */ +#include <linux/in.h> + +#include "smskdefs.h" // page, scatterlist, kmutex +#include "smscoreapi.h" +#include "smstypes.h" + +#define IPV4VERSION 0x40 +#define IPV6VERSION 0x60 +#define GETIPVERSION(_x_) ((_x_) & 0xf0) + +typedef struct _smsnet_client +{ + struct list_head entry; + + smscore_device_t *coredev; + smscore_client_t *smsclient; + + int packet_length, splitpacket_length; + int header_length, splitheader_length; + u8 splitpacket[ETH_DATA_LEN]; +} smsnet_client_t; + +struct list_head g_smsnet_clients; +kmutex_t g_smsnet_clientslock; + +struct net_device *g_smsnet_device = NULL; +struct net_device_stats g_smsnet_stats; + +int g_smsnet_inuse = 0; + +void smsnet_send_packet(u8* buffer, int length) +{ + u8 *eth; + struct sk_buff *skb = dev_alloc_skb(length + ETH_HLEN + NET_IP_ALIGN); + + if (!skb) + { + g_smsnet_stats.rx_dropped++; + return; + } + + skb_reserve(skb, NET_IP_ALIGN); + + eth = (u8 *) skb_put(skb, length + ETH_HLEN); + memcpy(eth + ETH_HLEN, buffer, length); + + eth[6] = 0; + eth[7] = 1; + eth[8] = 1; + eth[9] = 3; + eth[10] = 4; + eth[11] = 5; + + if (GETIPVERSION(*buffer) == IPV4VERSION) + { + eth[0] = 1; + eth[1] = 0; + eth[2] = 0x5e; + eth[3] = buffer[17] & 0x7f; + eth[4] = buffer[18]; + eth[5] = buffer[19]; + + eth[12] = 0x08; + eth[13] = 0x00; + } + else + { + // todo: ip6 mcast address + + eth[12] = 0x86; + eth[13] = 0xdd; + } + + skb->dev = g_smsnet_device; + skb->protocol = eth_type_trans(skb, g_smsnet_device); + skb->ip_summed = CHECKSUM_UNNECESSARY; + + g_smsnet_stats.rx_packets ++; + g_smsnet_stats.rx_bytes += skb->len; + + netif_rx(skb); +} + +int check_header(smsnet_client_t* client, u8* buffer) +{ + struct iphdr *ip4_hdr; + struct ipv6hdr *ip6_hdr; + struct udphdr *udp_hdr; + u16 csum; + + // check if packet header is valid and it is a UDP + if (GETIPVERSION(*buffer) == IPV4VERSION) + { + ip4_hdr = (struct iphdr*) buffer; + csum = ip4_hdr->check; + + ip4_hdr->check = 0; + + // check header checksum for IPv4 packets + if(ip4_hdr->protocol != IPPROTO_UDP || csum != ip_fast_csum(buffer, ip4_hdr->ihl)) + { + ip4_hdr->check = csum; + return 0; + } + + ip4_hdr->check = csum; + client->packet_length = ntohs(ip4_hdr->tot_len); + } + else + { + ip6_hdr = (struct ipv6hdr *) buffer; + udp_hdr = (struct udphdr *)(ip6_hdr + 1); + + if ((ip6_hdr->nexthdr != IPPROTO_UDP) || + (ip6_hdr->payload_len != udp_hdr->len)) + { + return 0; + } + + client->packet_length = ntohs(ip6_hdr->payload_len) + sizeof(struct ipv6hdr); + } + + // check for abnormal packet length + if (client->packet_length > ETH_DATA_LEN) + return 0; + + return 1; +} + +int smsnet_onresponse(void *context, smscore_buffer_t *cb) +{ + smsnet_client_t *client = (smsnet_client_t *) context; + int length, rest; + u8 ip_ver, *buffer; + + buffer = ((u8*) cb->p) + cb->offset + sizeof(SmsMsgHdr_ST); + length = cb->size - sizeof(SmsMsgHdr_ST); + + if (client->splitheader_length) + { + // how much data is missing ? + rest = client->header_length - client->splitheader_length; + + // do we have enough in this buffer ? + rest = min(rest, length); + + memcpy(&client->splitpacket[client->splitheader_length], buffer, rest); + + client->splitheader_length += rest; + + if (client->splitheader_length != client->header_length) + goto exit; + + if (check_header(client, client->splitpacket)) + { + buffer += rest; + length -= rest; + + client->splitpacket_length = client->header_length; + } + + client->splitheader_length = 0; + } + + if (client->splitpacket_length) + { + // how much data is missing ? + rest = client->packet_length - client->splitpacket_length; + + // do we have enough in this buffer ? + rest = min(rest, length); + + memcpy(&client->splitpacket[client->splitpacket_length], buffer, rest); + + client->splitpacket_length += rest; + + if (client->splitpacket_length != client->packet_length) + goto exit; + + client->splitpacket_length = 0; + + smsnet_send_packet(client->splitpacket, client->packet_length); + + buffer += rest; + length -= rest; + } + + while (length > 0) + { + ip_ver = GETIPVERSION(*buffer); + while (length && (ip_ver != IPV4VERSION) && (ip_ver != IPV6VERSION)) + { + buffer++; + length--; + ip_ver = GETIPVERSION(*buffer); + } + + // No more data in section + if (!length) + break; + + // Set the header length at start of packet according to the version + // no problem with the IP header cast, since we have at least 1 byte (we use only the first byte) + client->header_length = (ip_ver == IPV4VERSION) ? (((struct iphdr *) buffer)->ihl * 4) : (sizeof(struct ipv6hdr) + sizeof(struct udphdr)); + + // Check that Header length is at least 20 (min IPv4 length) + if (client->header_length < 20) + { + length--; + buffer++; + continue; + } + + // check split header case + if (client->header_length > length) + { + memcpy(client->splitpacket, buffer, length); + client->splitheader_length = length; + break; + } + + if (check_header(client, buffer)) + { + // check split packet case + if (client->packet_length > length) + { + memcpy(client->splitpacket, buffer, length); + client->splitpacket_length = length; + break; + } + } + else + { + length --; + buffer ++; + continue; + } + + smsnet_send_packet(buffer, client->packet_length); + + buffer += client->packet_length; + length -= client->packet_length; + } + +exit: + smscore_putbuffer(client->coredev, cb); + + return 0; +} + +void smsnet_unregister_client(smsnet_client_t* client) +{ + // must be called under clientslock + + list_del(&client->entry); + + smscore_unregister_client(client->smsclient); + kfree(client); +} + +void smsnet_onremove(void *context) +{ + kmutex_lock(&g_smsnet_clientslock); + + smsnet_unregister_client((smsnet_client_t*) context); + + kmutex_unlock(&g_smsnet_clientslock); +} + +int smsnet_hotplug(smscore_device_t *coredev, struct device* device, int arrival) +{ + smsclient_params_t params; + smsnet_client_t* client; + int rc; + + // device removal handled by onremove callback + if (!arrival) + return 0; + + client = kzalloc(sizeof(smsnet_client_t), GFP_KERNEL); + if (!client) + { + printk(KERN_INFO "%s kmalloc() failed\n", __FUNCTION__); + return -ENOMEM; + } + + params.initial_id = 0; + params.data_type = MSG_SMS_DATA_MSG; + params.onresponse_handler = smsnet_onresponse; + params.onremove_handler = smsnet_onremove; + params.context = client; + + rc = smscore_register_client(coredev, ¶ms, &client->smsclient); + if (rc < 0) + { + printk(KERN_INFO "%s smscore_register_client() failed %d\n", __FUNCTION__, rc); + kfree(client); + return rc; + } + + client->coredev = coredev; + + kmutex_lock(&g_smsnet_clientslock); + + list_add(&client->entry, &g_smsnet_clients); + + kmutex_unlock(&g_smsnet_clientslock); + + printk(KERN_INFO "%s success\n", __FUNCTION__); + + return 0; +} + +static int smsnet_open(struct net_device *dev) +{ + g_smsnet_inuse ++; + + netif_start_queue(dev); + + printk(KERN_INFO "%s, %d\n", __FUNCTION__, g_smsnet_inuse); + + return 0; +} + +static int smsnet_stop(struct net_device *dev) +{ + netif_stop_queue(dev); + + g_smsnet_inuse --; + + printk(KERN_INFO "%s, %d\n", __FUNCTION__, g_smsnet_inuse); + + return 0; +} + +static int smsnet_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + printk(KERN_INFO "%s\n", __FUNCTION__); + + dev_kfree_skb(skb); + return 0; +} + +static struct net_device_stats * smsnet_get_stats(struct net_device *dev) +{ + return &g_smsnet_stats; +} + +static void smsnet_set_multicast_list(struct net_device *dev) +{ + printk(KERN_INFO "%s %d\n", __FUNCTION__, dev->mc_count); + if (dev->mc_count) + { + struct dev_mc_list *p; + + for (p = dev->mc_list; p; p = p->next) + printk(KERN_INFO "%s %d %02x %02x %02x %02x %02x %02x %02x %02x\n", __FUNCTION__, p->dmi_addrlen, + p->dmi_addr[0], p->dmi_addr[1], p->dmi_addr[2], p->dmi_addr[3], + p->dmi_addr[4], p->dmi_addr[5], p->dmi_addr[6], p->dmi_addr[7] + ); + } +} + +static void smsnet_setup_device(struct net_device *dev) +{ + ether_setup(dev); + + dev->open = smsnet_open; + dev->stop = smsnet_stop; + dev->hard_start_xmit = smsnet_hard_start_xmit; + dev->get_stats = smsnet_get_stats; + dev->set_multicast_list = smsnet_set_multicast_list; + + dev->mc_count = 0; + dev->hard_header_cache = NULL; + + memcpy(dev->dev_addr, "\0SIANO", ETH_ALEN); + + dev->flags |= IFF_NOARP; + dev->features |= NETIF_F_NO_CSUM; +} + +int smsnet_module_init(void) +{ + int rc; + + INIT_LIST_HEAD(&g_smsnet_clients); + kmutex_init(&g_smsnet_clientslock); + + memset(&g_smsnet_stats, 0, sizeof(g_smsnet_stats)); + + g_smsnet_device = alloc_netdev(0, "sms", smsnet_setup_device); + if (!g_smsnet_device) + { + printk(KERN_INFO "%s alloc_netdev() failed\n", __FUNCTION__); + return -ENOMEM; + } + + rc = register_netdev(g_smsnet_device); + if (rc < 0) + { + printk(KERN_INFO "%s register_netdev() failed %d\n", __FUNCTION__, rc); + free_netdev(g_smsnet_device); + return rc; + } + + rc = smscore_register_hotplug(smsnet_hotplug); + + printk(KERN_INFO "%s, rc %d\n", __FUNCTION__, rc); + + return rc; +} + +void smsnet_module_exit(void) +{ + if (g_smsnet_device) + { + unregister_netdev(g_smsnet_device); + free_netdev(g_smsnet_device); + + g_smsnet_device = NULL; + } + + smscore_unregister_hotplug(smsnet_hotplug); + + kmutex_lock(&g_smsnet_clientslock); + + while (!list_empty(&g_smsnet_clients)) + smsnet_unregister_client((smsnet_client_t*) g_smsnet_clients.next); + + kmutex_unlock(&g_smsnet_clientslock); + + printk(KERN_INFO "%s\n", __FUNCTION__); +} + +module_init(smsnet_module_init); +module_exit(smsnet_module_exit); + +MODULE_DESCRIPTION("smsnet dvb-h ip sink module"); +MODULE_AUTHOR("Anatoly Greenblatt,,, (anatolyg@siano-ms.com)"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/mdtv/smstypes.h b/drivers/media/mdtv/smstypes.h new file mode 100644 index 00000000000..011cd904d0f --- /dev/null +++ b/drivers/media/mdtv/smstypes.h @@ -0,0 +1,361 @@ +#ifndef __smstypes_h__ +#define __smstypes_h__ + +// GPIO definitions for antenna frequency domain control (SMS8021) +#define SMS_ANTENNA_GPIO_0 1 +#define SMS_ANTENNA_GPIO_1 0 + +#define BW_8_MHZ 0 +#define BW_7_MHZ 1 +#define BW_6_MHZ 2 +#define BW_5_MHZ 3 +#define BW_ISDBT_1SEG 4 +#define BW_ISDBT_3SEG 5 + +#define MSG_HDR_FLAG_SPLIT_MSG 4 + +#define MAX_GPIO_PIN_NUMBER 31 + +#define HIF_TASK 11 +#define SMS_HOST_LIB 150 +#define DVBT_BDA_CONTROL_MSG_ID 201 + +#define SMS_MAX_PAYLOAD_SIZE 240 +#define SMS_TUNE_TIMEOUT 500 + +#define MSG_SMS_GPIO_CONFIG_REQ 507 +#define MSG_SMS_GPIO_CONFIG_RES 508 +#define MSG_SMS_GPIO_SET_LEVEL_REQ 509 +#define MSG_SMS_GPIO_SET_LEVEL_RES 510 +#define MSG_SMS_GPIO_GET_LEVEL_REQ 511 +#define MSG_SMS_GPIO_GET_LEVEL_RES 512 +#define MSG_SMS_RF_TUNE_REQ 561 +#define MSG_SMS_RF_TUNE_RES 562 +#define MSG_SMS_INIT_DEVICE_REQ 578 +#define MSG_SMS_INIT_DEVICE_RES 579 +#define MSG_SMS_ADD_PID_FILTER_REQ 601 +#define MSG_SMS_ADD_PID_FILTER_RES 602 +#define MSG_SMS_REMOVE_PID_FILTER_REQ 603 +#define MSG_SMS_REMOVE_PID_FILTER_RES 604 +#define MSG_SMS_DAB_CHANNEL 607 +#define MSG_SMS_GET_PID_FILTER_LIST_REQ 608 +#define MSG_SMS_GET_PID_FILTER_LIST_RES 609 +#define MSG_SMS_GET_STATISTICS_REQ 615 +#define MSG_SMS_GET_STATISTICS_RES 616 +#define MSG_SMS_SET_ANTENNA_CONFIG_REQ 651 +#define MSG_SMS_SET_ANTENNA_CONFIG_RES 652 +#define MSG_SMS_GET_STATISTICS_EX_REQ 653 +#define MSG_SMS_GET_STATISTICS_EX_RES 654 +#define MSG_SMS_SLEEP_RESUME_COMP_IND 655 +#define MSG_SMS_DATA_DOWNLOAD_REQ 660 +#define MSG_SMS_DATA_DOWNLOAD_RES 661 +#define MSG_SMS_SWDOWNLOAD_TRIGGER_REQ 664 +#define MSG_SMS_SWDOWNLOAD_TRIGGER_RES 665 +#define MSG_SMS_SWDOWNLOAD_BACKDOOR_REQ 666 +#define MSG_SMS_SWDOWNLOAD_BACKDOOR_RES 667 +#define MSG_SMS_GET_VERSION_EX_REQ 668 +#define MSG_SMS_GET_VERSION_EX_RES 669 +#define MSG_SMS_SET_CLOCK_OUTPUT_REQ 670 +#define MSG_SMS_I2C_SET_FREQ_REQ 685 +#define MSG_SMS_GENERIC_I2C_REQ 687 +#define MSG_SMS_GENERIC_I2C_RES 688 +#define MSG_SMS_DVBT_BDA_DATA 693 +#define MSG_SW_RELOAD_REQ 697 +#define MSG_SMS_DATA_MSG 699 +#define MSG_SW_RELOAD_START_REQ 702 +#define MSG_SW_RELOAD_START_RES 703 +#define MSG_SW_RELOAD_EXEC_REQ 704 +#define MSG_SW_RELOAD_EXEC_RES 705 +#define MSG_SMS_SPI_INT_LINE_SET_REQ 710 +#define MSG_SMS_ISDBT_TUNE_REQ 776 +#define MSG_SMS_ISDBT_TUNE_RES 777 + +#define SMS_INIT_MSG_EX(ptr, type, src, dst, len) do { \ + (ptr)->msgType = type; (ptr)->msgSrcId = src; (ptr)->msgDstId = dst; \ + (ptr)->msgLength = len; (ptr)->msgFlags = 0; \ +} while (0) +#define SMS_INIT_MSG(ptr, type, len) SMS_INIT_MSG_EX(ptr, type, 0, HIF_TASK, len) + +typedef enum +{ + DEVICE_MODE_NONE = -1, + DEVICE_MODE_DVBT = 0, + DEVICE_MODE_DVBH, + DEVICE_MODE_DAB_TDMB, + DEVICE_MODE_DAB_TDMB_DABIP, + DEVICE_MODE_DVBT_BDA, + DEVICE_MODE_ISDBT, + DEVICE_MODE_ISDBT_BDA, + DEVICE_MODE_CMMB, + DEVICE_MODE_RAW_TUNER, + DEVICE_MODE_MAX, +} SMS_DEVICE_MODE; + +typedef unsigned char UINT8; +typedef unsigned short UINT16; +typedef unsigned int UINT32; +typedef int INT32; + +typedef struct SmsMsgHdr_S +{ + UINT16 msgType; + UINT8 msgSrcId; + UINT8 msgDstId; + UINT16 msgLength; // Length is of the entire message, including header + UINT16 msgFlags; +} SmsMsgHdr_ST; + +typedef struct SmsMsgData_S +{ + SmsMsgHdr_ST xMsgHeader; + UINT32 msgData[1]; +} SmsMsgData_ST; + +typedef struct SmsDataDownload_S +{ + SmsMsgHdr_ST xMsgHeader; + UINT32 MemAddr; + UINT8 Payload[SMS_MAX_PAYLOAD_SIZE]; +} SmsDataDownload_ST; + +typedef struct SmsVersionRes_S +{ + SmsMsgHdr_ST xMsgHeader; + + UINT16 ChipModel; // e.g. 0x1102 for SMS-1102 "Nova" + UINT8 Step; // 0 - Step A + UINT8 MetalFix; // 0 - Metal 0 + + UINT8 FirmwareId; // 0xFF � ROM, otherwise the value indicated by SMSHOSTLIB_DEVICE_MODES_E + UINT8 SupportedProtocols; // Bitwise OR combination of supported protocols + + UINT8 VersionMajor; + UINT8 VersionMinor; + UINT8 VersionPatch; + UINT8 VersionFieldPatch; + + UINT8 RomVersionMajor; + UINT8 RomVersionMinor; + UINT8 RomVersionPatch; + UINT8 RomVersionFieldPatch; + + UINT8 TextLabel[34]; +} SmsVersionRes_ST; + +typedef struct SmsFirmware_S +{ + UINT32 CheckSum; + UINT32 Length; + UINT32 StartAddress; + UINT8 Payload[1]; +} SmsFirmware_ST; + +typedef struct SMSHOSTLIB_STATISTICS_S +{ + UINT32 Reserved; //!< Reserved + + /// Common parameters + UINT32 IsRfLocked; //!< 0 - not locked, 1 - locked + UINT32 IsDemodLocked; //!< 0 - not locked, 1 - locked + UINT32 IsExternalLNAOn; //!< 0 - external LNA off, 1 - external LNA on + + /// Reception quality + INT32 SNR; //!< dB + UINT32 BER; //!< Post Viterbi BER [1E-5] + UINT32 FIB_CRC; //!< CRC errors percentage, valid only for DAB + UINT32 TS_PER; //!< Transport stream PER, 0xFFFFFFFF indicate N/A, valid only for DVB-T/H + UINT32 MFER; //!< DVB-H frame error rate in percentage, 0xFFFFFFFF indicate N/A, valid only for DVB-H + INT32 RSSI; //!< dBm + INT32 InBandPwr; //!< In band power in dBM + INT32 CarrierOffset; //!< Carrier Offset in bin/1024 + + /// Transmission parameters + UINT32 Frequency; //!< Frequency in Hz + UINT32 Bandwidth; //!< Bandwidth in MHz, valid only for DVB-T/H + UINT32 TransmissionMode; //!< Transmission Mode, for DAB modes 1-4, for DVB-T/H FFT mode carriers in Kilos + UINT32 ModemState; //!< from SMS_DvbModemState_ET , valid only for DVB-T/H + UINT32 GuardInterval; //!< Guard Interval, 1 divided by value , valid only for DVB-T/H + UINT32 CodeRate; //!< Code Rate from SMS_DvbModemState_ET, valid only for DVB-T/H + UINT32 LPCodeRate; //!< Low Priority Code Rate from SMS_DvbModemState_ET, valid only for DVB-T/H + UINT32 Hierarchy; //!< Hierarchy from SMS_Hierarchy_ET, valid only for DVB-T/H + UINT32 Constellation; //!< Constellation from SMS_Constellation_ET, valid only for DVB-T/H + + /// Burst parameters, valid only for DVB-H + UINT32 BurstSize; //!< Current burst size in bytes, valid only for DVB-H + UINT32 BurstDuration; //!< Current burst duration in mSec, valid only for DVB-H + UINT32 BurstCycleTime; //!< Current burst cycle time in mSec, valid only for DVB-H + UINT32 CalculatedBurstCycleTime;//!< Current burst cycle time in mSec, as calculated by demodulator, valid only for DVB-H + UINT32 NumOfRows; //!< Number of rows in MPE table, valid only for DVB-H + UINT32 NumOfPaddCols; //!< Number of padding columns in MPE table, valid only for DVB-H + UINT32 NumOfPunctCols; //!< Number of puncturing columns in MPE table, valid only for DVB-H + UINT32 ErrorTSPackets; //!< Number of erroneous transport-stream packets + UINT32 TotalTSPackets; //!< Total number of transport-stream packets + UINT32 NumOfValidMpeTlbs; //!< Number of MPE tables which do not include errors after MPE RS decoding + UINT32 NumOfInvalidMpeTlbs; //!< Number of MPE tables which include errors after MPE RS decoding + UINT32 NumOfCorrectedMpeTlbs; //!< Number of MPE tables which were corrected by MPE RS decoding + /// Common params + UINT32 BERErrorCount; //!< Number of errornous SYNC bits. + UINT32 BERBitCount; //!< Total number of SYNC bits. + + /// Interface information + UINT32 SmsToHostTxErrors; //!< Total number of transmission errors. + + /// DAB/T-DMB + UINT32 PreBER; //!< DAB/T-DMB only: Pre Viterbi BER [1E-5] + + /// DVB-H TPS parameters + UINT32 CellId; //!< TPS Cell ID in bits 15..0, bits 31..16 zero; if set to 0xFFFFFFFF cell_id not yet recovered + +} SMSHOSTLIB_STATISTICS_ST; + +typedef struct +{ + UINT32 RequestResult; + + SMSHOSTLIB_STATISTICS_ST Stat; + + // Split the calc of the SNR in DAB + UINT32 Signal; //!< dB + UINT32 Noise; //!< dB + +} SmsMsgStatisticsInfo_ST; + +typedef struct SMSHOSTLIB_ISDBT_LAYER_STAT_S +{ + // Per-layer information + UINT32 CodeRate; //!< Code Rate from SMSHOSTLIB_CODE_RATE_ET, 255 means layer does not exist + UINT32 Constellation; //!< Constellation from SMSHOSTLIB_CONSTELLATION_ET, 255 means layer does not exist + UINT32 BER; //!< Post Viterbi BER [1E-5], 0xFFFFFFFF indicate N/A + UINT32 BERErrorCount; //!< Post Viterbi Error Bits Count + UINT32 BERBitCount; //!< Post Viterbi Total Bits Count + UINT32 PreBER; //!< Pre Viterbi BER [1E-5], 0xFFFFFFFF indicate N/A + UINT32 TS_PER; //!< Transport stream PER [%], 0xFFFFFFFF indicate N/A + UINT32 ErrorTSPackets; //!< Number of erroneous transport-stream packets + UINT32 TotalTSPackets; //!< Total number of transport-stream packets + UINT32 TILdepthI; //!< Time interleaver depth I parameter, 255 means layer does not exist + UINT32 NumberOfSegments; //!< Number of segments in layer A, 255 means layer does not exist + UINT32 TMCCErrors; //!< TMCC errors +} SMSHOSTLIB_ISDBT_LAYER_STAT_ST; + +typedef struct SMSHOSTLIB_STATISTICS_ISDBT_S +{ + UINT32 StatisticsType; //!< Enumerator identifying the type of the structure. Values are the same as SMSHOSTLIB_DEVICE_MODES_E + //!< This fiels MUST always first in any statistics structure + + UINT32 FullSize; //!< Total size of the structure returned by the modem. If the size requested by + //!< the host is smaller than FullSize, the struct will be truncated + + // Common parameters + UINT32 IsRfLocked; //!< 0 - not locked, 1 - locked + UINT32 IsDemodLocked; //!< 0 - not locked, 1 - locked + UINT32 IsExternalLNAOn; //!< 0 - external LNA off, 1 - external LNA on + + // Reception quality + INT32 SNR; //!< dB + INT32 RSSI; //!< dBm + INT32 InBandPwr; //!< In band power in dBM + INT32 CarrierOffset; //!< Carrier Offset in Hz + + // Transmission parameters + UINT32 Frequency; //!< Frequency in Hz + UINT32 Bandwidth; //!< Bandwidth in MHz + UINT32 TransmissionMode; //!< ISDB-T transmission mode + UINT32 ModemState; //!< 0 - Acquisition, 1 - Locked + UINT32 GuardInterval; //!< Guard Interval, 1 divided by value + UINT32 SystemType; //!< ISDB-T system type (ISDB-T / ISDB-Tsb) + UINT32 PartialReception; //!< TRUE - partial reception, FALSE otherwise + UINT32 NumOfLayers; //!< Number of ISDB-T layers in the network + + // Per-layer information + // Layers A, B and C + SMSHOSTLIB_ISDBT_LAYER_STAT_ST LayerInfo[3]; //!< Per-layer statistics, see SMSHOSTLIB_ISDBT_LAYER_STAT_ST + + // Interface information + UINT32 SmsToHostTxErrors; //!< Total number of transmission errors. + +} SMSHOSTLIB_STATISTICS_ISDBT_ST; + +typedef struct SMSHOSTLIB_STATISTICS_DVB_S +{ + UINT32 StatisticsType; //!< Enumerator identifying the type of the structure. Values are the same as SMSHOSTLIB_DEVICE_MODES_E + //!< This fiels MUST always first in any statistics structure + + UINT32 FullSize; //!< Total size of the structure returned by the modem. If the size requested by + //!< the host is smaller than FullSize, the struct will be truncated + // Common parameters + UINT32 IsRfLocked; //!< 0 - not locked, 1 - locked + UINT32 IsDemodLocked; //!< 0 - not locked, 1 - locked + UINT32 IsExternalLNAOn; //!< 0 - external LNA off, 1 - external LNA on + + // Reception quality + INT32 SNR; //!< dB + UINT32 BER; //!< Post Viterbi BER [1E-5] + UINT32 BERErrorCount; //!< Number of errornous SYNC bits. + UINT32 BERBitCount; //!< Total number of SYNC bits. + UINT32 TS_PER; //!< Transport stream PER, 0xFFFFFFFF indicate N/A + UINT32 MFER; //!< DVB-H frame error rate in percentage, 0xFFFFFFFF indicate N/A, valid only for DVB-H + INT32 RSSI; //!< dBm + INT32 InBandPwr; //!< In band power in dBM + INT32 CarrierOffset; //!< Carrier Offset in bin/1024 + + // Transmission parameters + UINT32 Frequency; //!< Frequency in Hz + UINT32 Bandwidth; //!< Bandwidth in MHz + UINT32 ModemState; //!< from SMSHOSTLIB_DVB_MODEM_STATE_ET + UINT32 TransmissionMode; //!< FFT mode carriers in Kilos + UINT32 GuardInterval; //!< Guard Interval, 1 divided by value + UINT32 CodeRate; //!< Code Rate from SMSHOSTLIB_CODE_RATE_ET + UINT32 LPCodeRate; //!< Low Priority Code Rate from SMSHOSTLIB_CODE_RATE_ET + UINT32 Hierarchy; //!< Hierarchy from SMSHOSTLIB_HIERARCHY_ET + UINT32 Constellation; //!< Constellation from SMSHOSTLIB_CONSTELLATION_ET + + // Burst parameters, valid only for DVB-H + UINT32 BurstSize; //!< Current burst size in bytes, valid only for DVB-H + UINT32 BurstDuration; //!< Current burst duration in mSec, valid only for DVB-H + UINT32 BurstCycleTime; //!< Current burst cycle time in mSec, valid only for DVB-H + UINT32 CalculatedBurstCycleTime;//!< Current burst cycle time in mSec, as calculated by demodulator, valid only for DVB-H + UINT32 NumOfRows; //!< Number of rows in MPE table, valid only for DVB-H + UINT32 NumOfPaddCols; //!< Number of padding columns in MPE table, valid only for DVB-H + UINT32 NumOfPunctCols; //!< Number of puncturing columns in MPE table, valid only for DVB-H + UINT32 ErrorTSPackets; //!< Number of erroneous transport-stream packets + UINT32 TotalTSPackets; //!< Total number of transport-stream packets + UINT32 NumOfValidMpeTlbs; //!< Number of MPE tables which do not include errors after MPE RS decoding, valid only for DVB-H + UINT32 NumOfInvalidMpeTlbs; //!< Number of MPE tables which include errors after MPE RS decoding, valid only for DVB-H + UINT32 NumOfCorrectedMpeTlbs; //!< Number of MPE tables which were corrected by MPE RS decoding, valid only for DVB-H + UINT32 NumMPEReceived; //!< DVB-H, Num MPE section received + + // DVB-H TPS parameters + UINT32 CellId; //!< TPS Cell ID in bits 15..0, bits 31..16 zero; if set to 0xFFFFFFFF cell_id not yet recovered + UINT32 DvbhSrvIndHP; //!< DVB-H service indication info, bit 1 - Time Slicing indicator, bit 0 - MPE-FEC indicator + UINT32 DvbhSrvIndLP; //!< DVB-H service indication info, bit 1 - Time Slicing indicator, bit 0 - MPE-FEC indicator + + // Interface information + UINT32 SmsToHostTxErrors; //!< Total number of transmission errors. + +} SMSHOSTLIB_STATISTICS_DVB_ST; + +typedef struct SMSHOSTLIB_GPIO_CONFIG_S +{ + UINT8 Direction; //!< GPIO direction: Input - 0, Output - 1 + UINT8 PullUpDown; //!< PullUp/PullDown: None - 0, PullDown - 1, PullUp - 2, Keeper - 3 + UINT8 InputCharacteristics; //!< Input Characteristics: Normal - 0, Schmitt trigger - 1 + UINT8 OutputSlewRate; //!< Output Slew Rate: Fast slew rate - 0, Slow slew rate - 1 + UINT8 OutputDriving; //!< Output driving capability: 4mA - 0, 8mA - 1, 12mA - 2, 16mA - 3 +} SMSHOSTLIB_GPIO_CONFIG_ST; + +typedef struct SMSHOSTLIB_I2C_REQ_S +{ + UINT32 DeviceAddress; // I2c device address + UINT32 WriteCount; // number of bytes to write + UINT32 ReadCount; // number of bytes to read + UINT8 Data[1]; +} SMSHOSTLIB_I2C_REQ_ST; + +typedef struct SMSHOSTLIB_I2C_RES_S +{ + UINT32 Status; // non-zero value in case of failure + UINT32 ReadCount; // number of bytes read + UINT8 Data[1]; +} SMSHOSTLIB_I2C_RES_ST; + +#endif // __smstypes_h__ diff --git a/drivers/media/mdtv/smsusb.c b/drivers/media/mdtv/smsusb.c new file mode 100644 index 00000000000..43af826b383 --- /dev/null +++ b/drivers/media/mdtv/smsusb.c @@ -0,0 +1,428 @@ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/firmware.h> + +#include "smskdefs.h" // page, scatterlist, kmutex +#include "smscoreapi.h" +#include "smstypes.h" + +#define USB_VID_SIANO 0x187f +#define USB_PID_0010 0x0010 +#define USB_PID_0100 0x0100 +#define USB_PID_0200 0x0200 + +#define USB1_BUFFER_SIZE 0x1000 +#define USB2_BUFFER_SIZE 0x4000 + +#define MAX_BUFFERS 50 +#define MAX_URBS 10 + +typedef struct _smsusb_device smsusb_device_t; + +typedef struct _smsusb_urb +{ + smscore_buffer_t *cb; + smsusb_device_t *dev; + + struct urb urb; +} smsusb_urb_t; + +typedef struct _smsusb_device +{ + struct usb_device* udev; + smscore_device_t *coredev; + + smsusb_urb_t surbs[MAX_URBS]; + + int response_alignment; + int buffer_size; +} *psmsusb_device_t; + +static struct usb_device_id smsusb_id_table [] = { + { USB_DEVICE(USB_VID_SIANO, USB_PID_0010) }, + { USB_DEVICE(USB_VID_SIANO, USB_PID_0100) }, + { USB_DEVICE(USB_VID_SIANO, USB_PID_0200) }, + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE (usb, smsusb_id_table); + +int smsusb_submit_urb(smsusb_device_t* dev, smsusb_urb_t* surb); + +void smsusb_onresponse(struct urb *urb) +{ + smsusb_urb_t *surb = (smsusb_urb_t *) urb->context; + smsusb_device_t *dev = surb->dev; + + if (urb->status < 0) + { + printk(KERN_INFO "%s error, urb status %d, %d bytes\n", __FUNCTION__, urb->status, urb->actual_length); + return; + } + + if (urb->actual_length > 0) + { + SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *) surb->cb->p; + + if (urb->actual_length >= phdr->msgLength) + { + surb->cb->size = phdr->msgLength; + + if (dev->response_alignment && (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG)) + { + surb->cb->offset = dev->response_alignment + ((phdr->msgFlags >> 8) & 3); + + // sanity check + if (((int) phdr->msgLength + surb->cb->offset) > urb->actual_length) + { + printk("%s: invalid response msglen %d offset %d size %d\n", __FUNCTION__, phdr->msgLength, surb->cb->offset, urb->actual_length); + goto exit_and_resubmit; + } + + // move buffer pointer and copy header to its new location + memcpy((char*) phdr + surb->cb->offset, phdr, sizeof(SmsMsgHdr_ST)); + } + else + surb->cb->offset = 0; + + smscore_onresponse(dev->coredev, surb->cb); + surb->cb = NULL; + } + else + { + printk("%s invalid response msglen %d actual %d\n", __FUNCTION__, phdr->msgLength, urb->actual_length); + } + } + +exit_and_resubmit: + smsusb_submit_urb(dev, surb); +} + +int smsusb_submit_urb(smsusb_device_t* dev, smsusb_urb_t* surb) +{ + if (!surb->cb) + { + surb->cb = smscore_getbuffer(dev->coredev); + if (!surb->cb) + { + printk(KERN_INFO "%s smscore_getbuffer(...) returned NULL\n", __FUNCTION__); + return -ENOMEM; + } + } + + usb_fill_bulk_urb( + &surb->urb, + dev->udev, + usb_rcvbulkpipe(dev->udev, 0x81), + surb->cb->p, + dev->buffer_size, + smsusb_onresponse, + surb + ); + surb->urb.transfer_dma = surb->cb->phys; + surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + return usb_submit_urb(&surb->urb, GFP_ATOMIC); +} + +void smsusb_stop_streaming(smsusb_device_t* dev) +{ + int i; + + for (i = 0; i < MAX_URBS; i ++) + { + usb_kill_urb(&dev->surbs[i].urb); + + if (dev->surbs[i].cb) + { + smscore_putbuffer(dev->coredev, dev->surbs[i].cb); + dev->surbs[i].cb = NULL; + } + } +} + +int smsusb_start_streaming(smsusb_device_t* dev) +{ + int i, rc; + + for (i = 0; i < MAX_URBS; i ++) + { + rc = smsusb_submit_urb(dev, &dev->surbs[i]); + if (rc < 0) + { + printk(KERN_INFO "%s smsusb_submit_urb(...) failed\n", __FUNCTION__); + smsusb_stop_streaming(dev); + break; + } + } + + return rc; +} + +int smsusb_sendrequest(void *context, void *buffer, size_t size) +{ + smsusb_device_t* dev = (smsusb_device_t*) context; + int dummy; + + return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2), buffer, size, &dummy, 1000); +} + +char *smsusb1_fw_lkup[] = +{ + "dvbt_stellar_usb.inp", + "dvbh_stellar_usb.inp", + "tdmb_stellar_usb.inp", + "none", + "dvbt_bda_stellar_usb.inp", +}; + +int smsusb1_load_firmware(struct usb_device *udev, int id) +{ + const struct firmware *fw; + u8* fw_buffer; + int rc, dummy; + + if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) + { + printk(KERN_INFO "%s invalid firmware id specified %d\n", __FUNCTION__, id); + return -EINVAL; + } + + rc = request_firmware(&fw, smsusb1_fw_lkup[id], &udev->dev); + if (rc < 0) + { + printk(KERN_INFO "%s failed to open \"%s\" mode %d\n", __FUNCTION__, smsusb1_fw_lkup[id], id); + return rc; + } + + fw_buffer = kmalloc(fw->size, GFP_KERNEL); + if (fw_buffer) + { + memcpy(fw_buffer, fw->data, fw->size); + + rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2), fw_buffer, fw->size, &dummy, 1000); + + printk(KERN_INFO "%s: sent %d(%d) bytes, rc %d\n", __FUNCTION__, fw->size, dummy, rc); + + kfree(fw_buffer); + } + else + { + printk(KERN_INFO "failed to allocate firmware buffer\n"); + rc = -ENOMEM; + } + + release_firmware(fw); + + return rc; +} + +void smsusb1_detectmode(void *context, int *mode) +{ + char *product_string = ((smsusb_device_t *) context)->udev->product; + + *mode = DEVICE_MODE_NONE; + + if (!product_string) + { + product_string = "none"; + printk("%s product string not found\n", __FUNCTION__); + } + else + { + if (strstr(product_string, "DVBH")) + *mode = 1; + else if (strstr(product_string, "BDA")) + *mode = 4; + else if (strstr(product_string, "DVBT")) + *mode = 0; + else if (strstr(product_string, "TDMB")) + *mode = 2; + } + + printk("%s: %d \"%s\"\n", __FUNCTION__, *mode, product_string); +} + +int smsusb1_setmode(void *context, int mode) +{ + SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 }; + + if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) + { + printk(KERN_INFO "%s invalid firmware id specified %d\n", __FUNCTION__, mode); + return -EINVAL; + } + + return smsusb_sendrequest(context, &Msg, sizeof(Msg)); +} + +void smsusb_term_device(struct usb_interface *intf) +{ + smsusb_device_t *dev = (smsusb_device_t*) usb_get_intfdata(intf); + + if (dev) + { + smsusb_stop_streaming(dev); + + // unregister from smscore + if (dev->coredev) + smscore_unregister_device(dev->coredev); + + kfree(dev); + + printk(KERN_INFO "%s device %p destroyed\n", __FUNCTION__, dev); + } + + usb_set_intfdata(intf, NULL); +} + +int smsusb_init_device(struct usb_interface *intf) +{ + smsdevice_params_t params; + smsusb_device_t* dev; + int i, rc; + + // create device object + dev = kzalloc(sizeof(smsusb_device_t), GFP_KERNEL); + if (!dev) + { + printk(KERN_INFO "%s kzalloc(sizeof(smsusb_device_t) failed\n", __FUNCTION__); + return -ENOMEM; + } + + memset(¶ms, 0, sizeof(params)); + usb_set_intfdata(intf, dev); + dev->udev = interface_to_usbdev(intf); + + switch (dev->udev->descriptor.idProduct) + { + case USB_PID_0100: + dev->buffer_size = USB1_BUFFER_SIZE; + + params.setmode_handler = smsusb1_setmode; + params.detectmode_handler = smsusb1_detectmode; + break; + + default: + dev->buffer_size = USB2_BUFFER_SIZE; + dev->response_alignment = dev->udev->ep_in[1]->desc.wMaxPacketSize - sizeof(SmsMsgHdr_ST); + + params.flags |= SMS_DEVICE_FAMILY2; + break; + } + + params.device = &dev->udev->dev; + params.buffer_size = dev->buffer_size; + params.num_buffers = MAX_BUFFERS; + params.sendrequest_handler = smsusb_sendrequest; + params.context = dev; + snprintf(params.devpath, sizeof(params.devpath), "usb\\%d-%s", dev->udev->bus->busnum, dev->udev->devpath); + + // register in smscore + rc = smscore_register_device(¶ms, &dev->coredev); + if (rc < 0) + { + printk(KERN_INFO "%s smscore_register_device(...) failed, rc %d\n", __FUNCTION__, rc); + smsusb_term_device(intf); + return rc; + } + + // initialize urbs + for (i = 0; i < MAX_URBS; i ++) + { + dev->surbs[i].dev = dev; + usb_init_urb(&dev->surbs[i].urb); + } + + rc = smsusb_start_streaming(dev); + if (rc < 0) + { + printk(KERN_INFO "%s smsusb_start_streaming(...) failed\n", __FUNCTION__); + smsusb_term_device(intf); + return rc; + } + + rc = smscore_start_device(dev->coredev); + if (rc < 0) + { + printk(KERN_INFO "%s smscore_start_device(...) failed\n", __FUNCTION__); + smsusb_term_device(intf); + return rc; + } + + printk(KERN_INFO "%s device %p created\n", __FUNCTION__, dev); + + return rc; +} + +int smsusb_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + char devpath[32]; + int i, rc; + + if (intf->num_altsetting > 0) + { + rc = usb_set_interface(udev, intf->cur_altsetting->desc.bInterfaceNumber, 0); + if (rc < 0) + { + printk(KERN_INFO "%s usb_set_interface failed, rc %d\n", __FUNCTION__, rc); + return rc; + } + } + + printk(KERN_INFO "smsusb_probe %d\n", intf->cur_altsetting->desc.bInterfaceNumber); + for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i ++) + printk(KERN_INFO "endpoint %d %02x %02x %d\n", i, intf->cur_altsetting->endpoint[i].desc.bEndpointAddress, intf->cur_altsetting->endpoint[i].desc.bmAttributes, intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize); + + if (udev->actconfig->desc.bNumInterfaces == 2 && intf->cur_altsetting->desc.bInterfaceNumber == 0) + { + printk(KERN_INFO "rom interface 0 is not used\n"); + return -ENODEV; + } + + if (intf->cur_altsetting->desc.bInterfaceNumber == 1) + { + snprintf(devpath, 32, "%d:%s", udev->bus->busnum, udev->devpath); + return smsusb1_load_firmware(udev, smscore_registry_getmode(devpath)); + } + + return smsusb_init_device(intf); +} + +void smsusb_disconnect(struct usb_interface *intf) +{ + smsusb_term_device(intf); +} + +static struct usb_driver smsusb_driver = { + .name = "smsusb", + .probe = smsusb_probe, + .disconnect = smsusb_disconnect, + .id_table = smsusb_id_table, +}; + +int smsusb_module_init(void) +{ + int rc = usb_register(&smsusb_driver); + if (rc) + printk(KERN_INFO "usb_register failed. Error number %d\n", rc); + + printk(KERN_INFO "%s\n", __FUNCTION__); + + return rc; +} + +void smsusb_module_exit(void) +{ + usb_deregister(&smsusb_driver); + printk(KERN_INFO "%s\n", __FUNCTION__); +} + +module_init(smsusb_module_init); +module_exit(smsusb_module_exit); + +MODULE_DESCRIPTION("smsusb"); +MODULE_AUTHOR("Anatoly Greenblatt,,, (anatolyg@siano-ms.com)"); +MODULE_LICENSE("GPL"); |