diff options
Diffstat (limited to 'drivers/media/dvb/ttpci/av7110_ca.c')
| -rw-r--r-- | drivers/media/dvb/ttpci/av7110_ca.c | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c deleted file mode 100644 index 9fc1dd0ba4c3..000000000000 --- a/drivers/media/dvb/ttpci/av7110_ca.c +++ /dev/null @@ -1,387 +0,0 @@ -/* - * av7110_ca.c: CA and CI stuff - * - * Copyright (C) 1999-2002 Ralph Metzler - * & Marcus Metzler for convergence integrated media GmbH - * - * originally based on code by: - * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * Or, point your browser to http://www.gnu.org/copyleft/gpl.html - * - * - * the project's page is at http://www.linuxtv.org/ - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/delay.h> -#include <linux/fs.h> -#include <linux/timer.h> -#include <linux/poll.h> -#include <linux/gfp.h> - -#include "av7110.h" -#include "av7110_hw.h" -#include "av7110_ca.h" - - -void CI_handle(struct av7110 *av7110, u8 *data, u16 len) -{ - dprintk(8, "av7110:%p\n",av7110); - - if (len < 3) - return; - switch (data[0]) { - case CI_MSG_CI_INFO: - if (data[2] != 1 && data[2] != 2) - break; - switch (data[1]) { - case 0: - av7110->ci_slot[data[2] - 1].flags = 0; - break; - case 1: - av7110->ci_slot[data[2] - 1].flags |= CA_CI_MODULE_PRESENT; - break; - case 2: - av7110->ci_slot[data[2] - 1].flags |= CA_CI_MODULE_READY; - break; - } - break; - case CI_SWITCH_PRG_REPLY: - //av7110->ci_stat=data[1]; - break; - default: - break; - } -} - - -void ci_get_data(struct dvb_ringbuffer *cibuf, u8 *data, int len) -{ - if (dvb_ringbuffer_free(cibuf) < len + 2) - return; - - DVB_RINGBUFFER_WRITE_BYTE(cibuf, len >> 8); - DVB_RINGBUFFER_WRITE_BYTE(cibuf, len & 0xff); - dvb_ringbuffer_write(cibuf, data, len); - wake_up_interruptible(&cibuf->queue); -} - - -/****************************************************************************** - * CI link layer file ops - ******************************************************************************/ - -static int ci_ll_init(struct dvb_ringbuffer *cirbuf, struct dvb_ringbuffer *ciwbuf, int size) -{ - struct dvb_ringbuffer *tab[] = { cirbuf, ciwbuf, NULL }, **p; - void *data; - - for (p = tab; *p; p++) { - data = vmalloc(size); - if (!data) { - while (p-- != tab) { - vfree(p[0]->data); - p[0]->data = NULL; - } - return -ENOMEM; - } - dvb_ringbuffer_init(*p, data, size); - } - return 0; -} - -static void ci_ll_flush(struct dvb_ringbuffer *cirbuf, struct dvb_ringbuffer *ciwbuf) -{ - dvb_ringbuffer_flush_spinlock_wakeup(cirbuf); - dvb_ringbuffer_flush_spinlock_wakeup(ciwbuf); -} - -static void ci_ll_release(struct dvb_ringbuffer *cirbuf, struct dvb_ringbuffer *ciwbuf) -{ - vfree(cirbuf->data); - cirbuf->data = NULL; - vfree(ciwbuf->data); - ciwbuf->data = NULL; -} - -static int ci_ll_reset(struct dvb_ringbuffer *cibuf, struct file *file, - int slots, ca_slot_info_t *slot) -{ - int i; - int len = 0; - u8 msg[8] = { 0x00, 0x06, 0x00, 0x00, 0xff, 0x02, 0x00, 0x00 }; - - for (i = 0; i < 2; i++) { - if (slots & (1 << i)) - len += 8; - } - - if (dvb_ringbuffer_free(cibuf) < len) - return -EBUSY; - - for (i = 0; i < 2; i++) { - if (slots & (1 << i)) { - msg[2] = i; - dvb_ringbuffer_write(cibuf, msg, 8); - slot[i].flags = 0; - } - } - - return 0; -} - -static ssize_t ci_ll_write(struct dvb_ringbuffer *cibuf, struct file *file, - const char __user *buf, size_t count, loff_t *ppos) -{ - int free; - int non_blocking = file->f_flags & O_NONBLOCK; - u8 *page = (u8 *)__get_free_page(GFP_USER); - int res; - - if (!page) - return -ENOMEM; - - res = -EINVAL; - if (count > 2048) - goto out; - - res = -EFAULT; - if (copy_from_user(page, buf, count)) - goto out; - - free = dvb_ringbuffer_free(cibuf); - if (count + 2 > free) { - res = -EWOULDBLOCK; - if (non_blocking) - goto out; - res = -ERESTARTSYS; - if (wait_event_interruptible(cibuf->queue, - (dvb_ringbuffer_free(cibuf) >= count + 2))) - goto out; - } - - DVB_RINGBUFFER_WRITE_BYTE(cibuf, count >> 8); - DVB_RINGBUFFER_WRITE_BYTE(cibuf, count & 0xff); - - res = dvb_ringbuffer_write(cibuf, page, count); -out: - free_page((unsigned long)page); - return res; -} - -static ssize_t ci_ll_read(struct dvb_ringbuffer *cibuf, struct file *file, - char __user *buf, size_t count, loff_t *ppos) -{ - int avail; - int non_blocking = file->f_flags & O_NONBLOCK; - ssize_t len; - - if (!cibuf->data || !count) - return 0; - if (non_blocking && (dvb_ringbuffer_empty(cibuf))) - return -EWOULDBLOCK; - if (wait_event_interruptible(cibuf->queue, - !dvb_ringbuffer_empty(cibuf))) - return -ERESTARTSYS; - avail = dvb_ringbuffer_avail(cibuf); - if (avail < 4) - return 0; - len = DVB_RINGBUFFER_PEEK(cibuf, 0) << 8; - len |= DVB_RINGBUFFER_PEEK(cibuf, 1); - if (avail < len + 2 || count < len) - return -EINVAL; - DVB_RINGBUFFER_SKIP(cibuf, 2); - - return dvb_ringbuffer_read_user(cibuf, buf, len); -} - -static int dvb_ca_open(struct inode *inode, struct file *file) -{ - struct dvb_device *dvbdev = file->private_data; - struct av7110 *av7110 = dvbdev->priv; - int err = dvb_generic_open(inode, file); - - dprintk(8, "av7110:%p\n",av7110); - - if (err < 0) - return err; - ci_ll_flush(&av7110->ci_rbuffer, &av7110->ci_wbuffer); - return 0; -} - -static unsigned int dvb_ca_poll (struct file *file, poll_table *wait) -{ - struct dvb_device *dvbdev = file->private_data; - struct av7110 *av7110 = dvbdev->priv; - struct dvb_ringbuffer *rbuf = &av7110->ci_rbuffer; - struct dvb_ringbuffer *wbuf = &av7110->ci_wbuffer; - unsigned int mask = 0; - - dprintk(8, "av7110:%p\n",av7110); - - poll_wait(file, &rbuf->queue, wait); - poll_wait(file, &wbuf->queue, wait); - - if (!dvb_ringbuffer_empty(rbuf)) - mask |= (POLLIN | POLLRDNORM); - - if (dvb_ringbuffer_free(wbuf) > 1024) - mask |= (POLLOUT | POLLWRNORM); - - return mask; -} - -static int dvb_ca_ioctl(struct file *file, unsigned int cmd, void *parg) -{ - struct dvb_device *dvbdev = file->private_data; - struct av7110 *av7110 = dvbdev->priv; - unsigned long arg = (unsigned long) parg; - - dprintk(8, "av7110:%p\n",av7110); - - switch (cmd) { - case CA_RESET: - return ci_ll_reset(&av7110->ci_wbuffer, file, arg, &av7110->ci_slot[0]); - break; - case CA_GET_CAP: - { - ca_caps_t cap; - - cap.slot_num = 2; - cap.slot_type = (FW_CI_LL_SUPPORT(av7110->arm_app) ? - CA_CI_LINK : CA_CI) | CA_DESCR; - cap.descr_num = 16; - cap.descr_type = CA_ECD; - memcpy(parg, &cap, sizeof(cap)); - break; - } - - case CA_GET_SLOT_INFO: - { - ca_slot_info_t *info=(ca_slot_info_t *)parg; - - if (info->num < 0 || info->num > 1) - return -EINVAL; - av7110->ci_slot[info->num].num = info->num; - av7110->ci_slot[info->num].type = FW_CI_LL_SUPPORT(av7110->arm_app) ? - CA_CI_LINK : CA_CI; - memcpy(info, &av7110->ci_slot[info->num], sizeof(ca_slot_info_t)); - break; - } - - case CA_GET_MSG: - break; - - case CA_SEND_MSG: - break; - - case CA_GET_DESCR_INFO: - { - ca_descr_info_t info; - - info.num = 16; - info.type = CA_ECD; - memcpy(parg, &info, sizeof (info)); - break; - } - - case CA_SET_DESCR: - { - ca_descr_t *descr = (ca_descr_t*) parg; - - if (descr->index >= 16) - return -EINVAL; - if (descr->parity > 1) - return -EINVAL; - av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetDescr, 5, - (descr->index<<8)|descr->parity, - (descr->cw[0]<<8)|descr->cw[1], - (descr->cw[2]<<8)|descr->cw[3], - (descr->cw[4]<<8)|descr->cw[5], - (descr->cw[6]<<8)|descr->cw[7]); - break; - } - - default: - return -EINVAL; - } - return 0; -} - -static ssize_t dvb_ca_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) -{ - struct dvb_device *dvbdev = file->private_data; - struct av7110 *av7110 = dvbdev->priv; - - dprintk(8, "av7110:%p\n",av7110); - return ci_ll_write(&av7110->ci_wbuffer, file, buf, count, ppos); -} - -static ssize_t dvb_ca_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) -{ - struct dvb_device *dvbdev = file->private_data; - struct av7110 *av7110 = dvbdev->priv; - - dprintk(8, "av7110:%p\n",av7110); - return ci_ll_read(&av7110->ci_rbuffer, file, buf, count, ppos); -} - -static const struct file_operations dvb_ca_fops = { - .owner = THIS_MODULE, - .read = dvb_ca_read, - .write = dvb_ca_write, - .unlocked_ioctl = dvb_generic_ioctl, - .open = dvb_ca_open, - .release = dvb_generic_release, - .poll = dvb_ca_poll, - .llseek = default_llseek, -}; - -static struct dvb_device dvbdev_ca = { - .priv = NULL, - .users = 1, - .writers = 1, - .fops = &dvb_ca_fops, - .kernel_ioctl = dvb_ca_ioctl, -}; - - -int av7110_ca_register(struct av7110 *av7110) -{ - return dvb_register_device(&av7110->dvb_adapter, &av7110->ca_dev, - &dvbdev_ca, av7110, DVB_DEVICE_CA); -} - -void av7110_ca_unregister(struct av7110 *av7110) -{ - dvb_unregister_device(av7110->ca_dev); -} - -int av7110_ca_init(struct av7110* av7110) -{ - return ci_ll_init(&av7110->ci_rbuffer, &av7110->ci_wbuffer, 8192); -} - -void av7110_ca_exit(struct av7110* av7110) -{ - ci_ll_release(&av7110->ci_rbuffer, &av7110->ci_wbuffer); -} |