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    SubjectRe: [PATCH 2/9 v2] Altera FPGA based CI driver module.
    Em 02-01-2011 10:01, Igor M. Liplianin escreveu:
    > An Altera FPGA CI module for NetUP Dual DVB-T/C RF CI card.
    >
    > Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>

    Igor,

    There's something wrong with this patch. I got lots of error after applying it:

    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_read_attribute_mem':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:304: multiple definition of `netup_ci_read_attribute_mem'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:241: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_op_cam':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:269: multiple definition of `netup_ci_op_cam'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:171: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_slot_shutdown':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:364: multiple definition of `netup_ci_slot_shutdown'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:293: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_slot_ts_ctl':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:370: multiple definition of `netup_ci_slot_ts_ctl'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:320: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_write_cam_ctl':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:322: multiple definition of `netup_ci_write_cam_ctl'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:259: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_read_cam_ctl':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:315: multiple definition of `netup_ci_read_cam_ctl'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:252: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_write_attribute_mem':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:310: multiple definition of `netup_ci_write_attribute_mem'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:247: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_poll_ci_slot_status':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:448: multiple definition of `netup_poll_ci_slot_status'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:403: first defined here
    drivers/media/video/cx23885/altera-ci.o: In function `netup_ci_slot_reset':
    /home/v4l/v4l/patchwork/drivers/media/video/cx23885/altera-ci.c:327: multiple definition of `netup_ci_slot_reset'
    drivers/media/video/cx23885/cx23885.o:/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cimax2.c:264: first defined here


    Please fix it and submit a new version. The better is to replace all those new symbols to start
    with altera_ci.

    While here, please, on the first patch, move the Altera FPGA driver to staging, to give people
    some time do discuss about it.

    PS.: there are a few CodingStyle errors on this patch. Please always review your patches with
    ./scripts/checkpatch.pl.

    Thanks!
    Mauro

    > ---
    > drivers/media/video/cx23885/Kconfig | 9 +
    > drivers/media/video/cx23885/Makefile | 1 +
    > drivers/media/video/cx23885/altera-ci.c | 837 +++++++++++++++++++++++++++++++
    > drivers/media/video/cx23885/altera-ci.h | 102 ++++
    > 4 files changed, 949 insertions(+), 0 deletions(-)
    > create mode 100644 drivers/media/video/cx23885/altera-ci.c
    > create mode 100644 drivers/media/video/cx23885/altera-ci.h
    >
    > diff --git a/drivers/media/video/cx23885/Kconfig b/drivers/media/video/cx23885/Kconfig
    > index 6b4a516..5e5faad 100644
    > --- a/drivers/media/video/cx23885/Kconfig
    > +++ b/drivers/media/video/cx23885/Kconfig
    > @@ -33,3 +33,12 @@ config VIDEO_CX23885
    > To compile this driver as a module, choose M here: the
    > module will be called cx23885
    >
    > +config MEDIA_ALTERA_CI
    > + tristate "Altera FPGA based CI module"
    > + depends on VIDEO_CX23885 && DVB_CORE
    > + select STAPL_ALTERA
    > + ---help---
    > + An Altera FPGA CI module for NetUP Dual DVB-T/C RF CI card.
    > +
    > + To compile this driver as a module, choose M here: the
    > + module will be called altera-ci
    > diff --git a/drivers/media/video/cx23885/Makefile b/drivers/media/video/cx23885/Makefile
    > index e2ee95f..23293c7 100644
    > --- a/drivers/media/video/cx23885/Makefile
    > +++ b/drivers/media/video/cx23885/Makefile
    > @@ -5,6 +5,7 @@ cx23885-objs := cx23885-cards.o cx23885-video.o cx23885-vbi.o \
    > cx23885-f300.o
    >
    > obj-$(CONFIG_VIDEO_CX23885) += cx23885.o
    > +obj-$(CONFIG_MEDIA_ALTERA_CI) += altera-ci.o
    >
    > EXTRA_CFLAGS += -Idrivers/media/video
    > EXTRA_CFLAGS += -Idrivers/media/common/tuners
    > diff --git a/drivers/media/video/cx23885/altera-ci.c b/drivers/media/video/cx23885/altera-ci.c
    > new file mode 100644
    > index 0000000..019797b
    > --- /dev/null
    > +++ b/drivers/media/video/cx23885/altera-ci.c
    > @@ -0,0 +1,837 @@
    > +/*
    > + * altera-ci.c
    > + *
    > + * CI driver in conjunction with NetUp Dual DVB-T/C RF CI card
    > + *
    > + * Copyright (C) 2010 NetUP Inc.
    > + * Copyright (C) 2010 Igor M. Liplianin <liplianin@netup.ru>
    > + *
    > + * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
    > + */
    > +
    > +/*
    > + * currently cx23885 GPIO's used.
    > + * GPIO-0 ~INT in
    > + * GPIO-1 TMS out
    > + * GPIO-2 ~reset chips out
    > + * GPIO-3 to GPIO-10 data/addr for CA in/out
    > + * GPIO-11 ~CS out
    > + * GPIO-12 AD_RG out
    > + * GPIO-13 ~WR out
    > + * GPIO-14 ~RD out
    > + * GPIO-15 ~RDY in
    > + * GPIO-16 TCK out
    > + * GPIO-17 TDO in
    > + * GPIO-18 TDI out
    > + */
    > +/*
    > + * Bit definitions for MC417_RWD and MC417_OEN registers
    > + * bits 31-16
    > + * +-----------+
    > + * | Reserved |
    > + * +-----------+
    > + * bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8
    > + * +-------+-------+-------+-------+-------+-------+-------+-------+
    > + * | TDI | TDO | TCK | RDY# | #RD | #WR | AD_RG | #CS |
    > + * +-------+-------+-------+-------+-------+-------+-------+-------+
    > + * bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
    > + * +-------+-------+-------+-------+-------+-------+-------+-------+
    > + * | DATA7| DATA6| DATA5| DATA4| DATA3| DATA2| DATA1| DATA0|
    > + * +-------+-------+-------+-------+-------+-------+-------+-------+
    > + */
    > +#include <linux/version.h>
    > +#include <media/videobuf-dma-sg.h>
    > +#include <media/videobuf-dvb.h>
    > +#include "altera-ci.h"
    > +#include "dvb_ca_en50221.h"
    > +
    > +/* FPGA regs */
    > +#define NETUP_CI_INT_CTRL 0x00
    > +#define NETUP_CI_BUSCTRL2 0x01
    > +#define NETUP_CI_ADDR0 0x04
    > +#define NETUP_CI_ADDR1 0x05
    > +#define NETUP_CI_DATA 0x06
    > +#define NETUP_CI_BUSCTRL 0x07
    > +#define NETUP_CI_PID_ADDR0 0x08
    > +#define NETUP_CI_PID_ADDR1 0x09
    > +#define NETUP_CI_PID_DATA 0x0a
    > +#define NETUP_CI_TSA_DIV 0x0c
    > +#define NETUP_CI_TSB_DIV 0x0d
    > +#define NETUP_CI_REVISION 0x0f
    > +
    > +/* const for ci op */
    > +#define NETUP_CI_FLG_CTL 1
    > +#define NETUP_CI_FLG_RD 1
    > +#define NETUP_CI_FLG_AD 1
    > +
    > +static unsigned int ci_dbg;
    > +module_param(ci_dbg, int, 0644);
    > +MODULE_PARM_DESC(ci_dbg, "Enable CI debugging");
    > +
    > +static unsigned int pid_dbg;
    > +module_param(pid_dbg, int, 0644);
    > +MODULE_PARM_DESC(pid_dbg, "Enable PID filtering debugging");
    > +
    > +MODULE_DESCRIPTION("altera FPGA CI module");
    > +MODULE_AUTHOR("Igor M. Liplianin <liplianin@netup.ru>");
    > +MODULE_LICENSE("GPL");
    > +
    > +#define ci_dbg_print(args...) \
    > + do { \
    > + if (ci_dbg) \
    > + printk(KERN_DEBUG args); \
    > + } while (0)
    > +
    > +#define pid_dbg_print(args...) \
    > + do { \
    > + if (pid_dbg) \
    > + printk(KERN_DEBUG args); \
    > + } while (0)
    > +
    > +struct netup_ci_state;
    > +struct netup_hw_pid_filter;
    > +
    > +struct fpga_internal {
    > + void *dev;
    > + struct mutex fpga_mutex;/* two CI's on the same fpga */
    > + struct netup_hw_pid_filter *pid_filt[2];
    > + struct netup_ci_state *state[2];
    > + struct work_struct work;
    > + int (*fpga_rw) (void *dev, int flag, int data, int rw);
    > + int cis_used;
    > + int filts_used;
    > + int strt_wrk;
    > +};
    > +
    > +/* stores all private variables for communication with CI */
    > +struct netup_ci_state {
    > + struct fpga_internal *internal;
    > + struct dvb_ca_en50221 ca;
    > + int status;
    > + int nr;
    > +};
    > +
    > +/* stores all private variables for hardware pid filtering */
    > +struct netup_hw_pid_filter {
    > + struct fpga_internal *internal;
    > + struct dvb_demux *demux;
    > + /* save old functions */
    > + int (*start_feed)(struct dvb_demux_feed *feed);
    > + int (*stop_feed)(struct dvb_demux_feed *feed);
    > +
    > + int status;
    > + int nr;
    > +};
    > +
    > +/* internal params node */
    > +struct fpga_inode {
    > + /* pointer for internal params, one for each pair of CI's */
    > + struct fpga_internal *internal;
    > + struct fpga_inode *next_inode;
    > +};
    > +
    > +/* first internal params */
    > +static struct fpga_inode *fpga_first_inode;
    > +
    > +/* find chip by dev */
    > +static struct fpga_inode *find_inode(void *dev)
    > +{
    > + struct fpga_inode *temp_chip = fpga_first_inode;
    > +
    > + if (temp_chip == NULL)
    > + return temp_chip;
    > +
    > + /*
    > + Search for the last fpga CI chip or
    > + find it by dev */
    > + while ((temp_chip != NULL) &&
    > + (temp_chip->internal->dev != dev))
    > + temp_chip = temp_chip->next_inode;
    > +
    > + return temp_chip;
    > +}
    > +/* check demux */
    > +static struct fpga_internal *check_filter(struct fpga_internal *temp_int,
    > + void *demux_dev, int filt_nr)
    > +{
    > + if (temp_int == NULL)
    > + return NULL;
    > +
    > + if ((temp_int->pid_filt[filt_nr]) == NULL)
    > + return NULL;
    > +
    > + if (temp_int->pid_filt[filt_nr]->demux == demux_dev)
    > + return temp_int;
    > +
    > + return NULL;
    > +}
    > +
    > +/* find chip by demux */
    > +static struct fpga_inode *find_dinode(void *demux_dev)
    > +{
    > + struct fpga_inode *temp_chip = fpga_first_inode;
    > + struct fpga_internal *temp_int;
    > +
    > + /*
    > + * Search of the last fpga CI chip or
    > + * find it by demux
    > + */
    > + while (temp_chip != NULL) {
    > + if (temp_chip->internal != NULL) {
    > + temp_int = temp_chip->internal;
    > + if (check_filter(temp_int, demux_dev,0))
    > + break;
    > + if (check_filter(temp_int, demux_dev,1))
    > + break;
    > + }
    > +
    > + temp_chip = temp_chip->next_inode;
    > + }
    > +
    > + return temp_chip;
    > +}
    > +
    > +/* deallocating chip */
    > +static void remove_inode(struct fpga_internal *internal)
    > +{
    > + struct fpga_inode *prev_node = fpga_first_inode;
    > + struct fpga_inode *del_node = find_inode(internal->dev);
    > +
    > + if (del_node != NULL) {
    > + if (del_node == fpga_first_inode) {
    > + fpga_first_inode = del_node->next_inode;
    > + } else {
    > + while (prev_node->next_inode != del_node)
    > + prev_node = prev_node->next_inode;
    > +
    > + if (del_node->next_inode == NULL)
    > + prev_node->next_inode = NULL;
    > + else
    > + prev_node->next_inode =
    > + prev_node->next_inode->next_inode;
    > + }
    > +
    > + kfree(del_node);
    > + }
    > +}
    > +
    > +/* allocating new chip */
    > +static struct fpga_inode *append_internal(struct fpga_internal *internal)
    > +{
    > + struct fpga_inode *new_node = fpga_first_inode;
    > +
    > + if (new_node == NULL) {
    > + new_node = kmalloc(sizeof(struct fpga_inode), GFP_KERNEL);
    > + fpga_first_inode = new_node;
    > + } else {
    > + while (new_node->next_inode != NULL)
    > + new_node = new_node->next_inode;
    > +
    > + new_node->next_inode =
    > + kmalloc(sizeof(struct fpga_inode), GFP_KERNEL);
    > + if (new_node->next_inode != NULL)
    > + new_node = new_node->next_inode;
    > + else
    > + new_node = NULL;
    > + }
    > +
    > + if (new_node != NULL) {
    > + new_node->internal = internal;
    > + new_node->next_inode = NULL;
    > + }
    > +
    > + return new_node;
    > +}
    > +
    > +static int netup_fpga_op_rw(struct fpga_internal *inter, int addr,
    > + u8 val, u8 read)
    > +{
    > + inter->fpga_rw(inter->dev, NETUP_CI_FLG_AD, addr, 0);
    > + return (inter->fpga_rw(inter->dev, 0, val, read));
    > +}
    > +
    > +/* flag - mem/io, read - read/write */
    > +int netup_ci_op_cam(struct dvb_ca_en50221 *en50221, int slot,
    > + u8 flag, u8 read, int addr, u8 val)
    > +{
    > +
    > + struct netup_ci_state *state = en50221->data;
    > + struct fpga_internal *inter = state->internal;
    > +
    > + u8 store;
    > + int mem = 0;
    > +
    > + if (0 != slot)
    > + return -EINVAL;
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + netup_fpga_op_rw(inter, NETUP_CI_ADDR0, ((addr << 1) & 0xfe), 0);
    > + netup_fpga_op_rw(inter, NETUP_CI_ADDR1, ((addr >> 7) & 0x7f), 0);
    > + store = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD);
    > +
    > + store &= 0x3f;
    > + store |= ((state->nr << 7) | (flag << 6));
    > +
    > + netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, store, 0);
    > + mem = netup_fpga_op_rw(inter, NETUP_CI_DATA, val, read);
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + ci_dbg_print("%s: %s: addr=[0x%02x], %s=%x\n", __func__,
    > + (read) ? "read" : "write", addr,
    > + (flag == NETUP_CI_FLG_CTL) ? "ctl" : "mem",
    > + (read) ? mem : val);
    > +
    > + return mem;
    > +}
    > +
    > +int netup_ci_read_attribute_mem(struct dvb_ca_en50221 *en50221,
    > + int slot, int addr)
    > +{
    > + return netup_ci_op_cam(en50221, slot, 0, NETUP_CI_FLG_RD, addr, 0);
    > +}
    > +
    > +int netup_ci_write_attribute_mem(struct dvb_ca_en50221 *en50221,
    > + int slot, int addr, u8 data)
    > +{
    > + return netup_ci_op_cam(en50221, slot, 0, 0, addr, data);
    > +}
    > +
    > +int netup_ci_read_cam_ctl(struct dvb_ca_en50221 *en50221, int slot, u8 addr)
    > +{
    > + return netup_ci_op_cam(en50221, slot, NETUP_CI_FLG_CTL,
    > + NETUP_CI_FLG_RD, addr, 0);
    > +}
    > +
    > +int netup_ci_write_cam_ctl(struct dvb_ca_en50221 *en50221, int slot,
    > + u8 addr, u8 data)
    > +{
    > + return netup_ci_op_cam(en50221, slot, NETUP_CI_FLG_CTL, 0, addr, data);
    > +}
    > +
    > +int netup_ci_slot_reset(struct dvb_ca_en50221 *en50221, int slot)
    > +{
    > + struct netup_ci_state *state = en50221->data;
    > + struct fpga_internal *inter = state->internal;
    > + /* reasonable timeout for CI reset is 10 seconds */
    > + unsigned long t_out = jiffies + msecs_to_jiffies(9999);
    > + int ret;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (0 != slot)
    > + return -EINVAL;
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD);
    > + netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL,
    > + ret | (1 << (5 - state->nr)), 0);
    > +
    > + for (;;) {
    > + mdelay(50);
    > + ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL,
    > + 0, NETUP_CI_FLG_RD);
    > + if ((ret & (1 << (5 - state->nr))) == 0)
    > + break;
    > + if (time_after(jiffies, t_out))
    > + break;
    > + }
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + printk("%s: %d msecs\n", __func__,
    > + jiffies_to_msecs(jiffies + msecs_to_jiffies(9999) - t_out));
    > +
    > + return 0;
    > +}
    > +
    > +int netup_ci_slot_shutdown(struct dvb_ca_en50221 *en50221, int slot)
    > +{
    > + /* not implemented */
    > + return 0;
    > +}
    > +
    > +int netup_ci_slot_ts_ctl(struct dvb_ca_en50221 *en50221, int slot)
    > +{
    > + struct netup_ci_state *state = en50221->data;
    > + struct fpga_internal *inter = state->internal;
    > + int ret;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (0 != slot)
    > + return -EINVAL;
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD);
    > + netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL,
    > + ret | (1 << (3 - state->nr)), 0);
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + return 0;
    > +}
    > +
    > +/* work handler */
    > +static void netup_read_ci_status(struct work_struct *work)
    > +{
    > + struct fpga_internal *inter =
    > + container_of(work, struct fpga_internal, work);
    > + int ret;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > + /* ack' irq */
    > + ret = netup_fpga_op_rw(inter, NETUP_CI_INT_CTRL, 0, NETUP_CI_FLG_RD);
    > + ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD);
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + if (inter->state[1] != NULL){
    > + inter->state[1]->status =
    > + ((ret & 1) == 0 ?
    > + DVB_CA_EN50221_POLL_CAM_PRESENT |
    > + DVB_CA_EN50221_POLL_CAM_READY : 0);
    > + ci_dbg_print("%s: setting CI[1] status = 0x%x \n",
    > + __func__, inter->state[1]->status);
    > + };
    > +
    > + if (inter->state[0] != NULL){
    > + inter->state[0]->status =
    > + ((ret & 2) == 0 ?
    > + DVB_CA_EN50221_POLL_CAM_PRESENT |
    > + DVB_CA_EN50221_POLL_CAM_READY : 0);
    > + ci_dbg_print("%s: setting CI[0] status = 0x%x \n",
    > + __func__, inter->state[0]->status);
    > + };
    > +}
    > +
    > +/* CI irq handler */
    > +int altera_ci_irq(void *dev)
    > +{
    > + struct fpga_inode *temp_int = NULL;
    > + struct fpga_internal *inter = NULL;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (dev != NULL) {
    > + temp_int = find_inode(dev);
    > + if (temp_int != NULL) {
    > + inter = temp_int->internal;
    > + schedule_work(&inter->work);
    > + }
    > + }
    > +
    > + return 1;
    > +}
    > +EXPORT_SYMBOL(altera_ci_irq);
    > +
    > +int netup_poll_ci_slot_status(struct dvb_ca_en50221 *en50221, int slot,
    > + int open)
    > +{
    > + struct netup_ci_state *state = en50221->data;
    > +
    > + if (0 != slot)
    > + return -EINVAL;
    > +
    > + return state->status;
    > +}
    > +
    > +int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr);
    > +
    > +int altera_ci_init(struct altera_ci_config *config, int ci_nr)
    > +{
    > + struct netup_ci_state *state;
    > + struct fpga_inode *temp_int = find_inode(config->dev);
    > + struct fpga_internal *inter = NULL;
    > + int ret = 0;
    > + u8 store = 0;
    > +
    > + state = kzalloc(sizeof(struct netup_ci_state), GFP_KERNEL);
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (!state) {
    > + ret = -ENOMEM;
    > + goto err;
    > + }
    > +
    > + if (temp_int != NULL) {
    > + inter = temp_int->internal;
    > + (inter->cis_used)++;
    > + printk("%s: Find Internal Structure!\n", __func__);
    > + } else {
    > + inter = kzalloc(sizeof(struct fpga_internal), GFP_KERNEL);
    > + if (!inter) {
    > + ret = -ENOMEM;
    > + goto err;
    > + }
    > +
    > + temp_int = append_internal(inter);
    > + inter->cis_used = 1;
    > + inter->dev = config->dev;
    > + inter->fpga_rw = config->fpga_rw;
    > + mutex_init(&inter->fpga_mutex);
    > + inter->strt_wrk = 1;
    > + printk("%s: Create New Internal Structure!\n", __func__);
    > + }
    > +
    > + printk("%s: setting state = 0x%x for ci = %d\n", __func__,
    > + (int)state, ci_nr - 1);
    > + inter->state[ci_nr - 1] = state;
    > + state->internal = inter;
    > + state->nr = ci_nr - 1;
    > +
    > + state->ca.owner = THIS_MODULE;
    > + state->ca.read_attribute_mem = netup_ci_read_attribute_mem;
    > + state->ca.write_attribute_mem = netup_ci_write_attribute_mem;
    > + state->ca.read_cam_control = netup_ci_read_cam_ctl;
    > + state->ca.write_cam_control = netup_ci_write_cam_ctl;
    > + state->ca.slot_reset = netup_ci_slot_reset;
    > + state->ca.slot_shutdown = netup_ci_slot_shutdown;
    > + state->ca.slot_ts_enable = netup_ci_slot_ts_ctl;
    > + state->ca.poll_slot_status = netup_poll_ci_slot_status;
    > + state->ca.data = state;
    > +
    > + ret = dvb_ca_en50221_init(config->adapter,
    > + &state->ca,
    > + /* flags */ 0,
    > + /* n_slots */ 1);
    > + if (0 != ret)
    > + goto err;
    > +
    > + altera_hw_filt_init(config, ci_nr);
    > +
    > + if (inter->strt_wrk) {
    > + INIT_WORK(&inter->work, netup_read_ci_status);
    > + inter->strt_wrk = 0;
    > + }
    > +
    > + printk("%s: CI initialized!\n", __func__);
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + /* Enable div */
    > + netup_fpga_op_rw(inter, NETUP_CI_TSA_DIV, 0x0, 0);
    > + netup_fpga_op_rw(inter, NETUP_CI_TSB_DIV, 0x0, 0);
    > +
    > + /* enable TS out */
    > + store = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL2, 0, NETUP_CI_FLG_RD);
    > + store |= (3 << 4);
    > + netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL2, store, 0);
    > +
    > + ret = netup_fpga_op_rw(inter, NETUP_CI_REVISION, 0, NETUP_CI_FLG_RD);
    > + /* enable irq */
    > + netup_fpga_op_rw(inter, NETUP_CI_INT_CTRL, 0x44, 0);
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + printk("%s: NetUP CI Revision = 0x%x\n", __func__, ret);
    > +
    > + schedule_work(&inter->work);
    > +
    > + return 0;
    > +err:
    > + printk("%s: Cannot initialize CI: Error %d.\n", __func__, ret);
    > + if (state)
    > + kfree(state);
    > +
    > + return ret;
    > +}
    > +EXPORT_SYMBOL(altera_ci_init);
    > +
    > +void altera_hw_filt_release(void *main_dev, int filt_nr)
    > +{
    > + struct fpga_inode *temp_int = find_inode(main_dev);
    > + struct netup_hw_pid_filter *pid_filt = NULL;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (temp_int != NULL) {
    > + pid_filt = temp_int->internal->pid_filt[filt_nr - 1];
    > + /* stored old feed controls */
    > + pid_filt->demux->start_feed = pid_filt->start_feed;
    > + pid_filt->demux->stop_feed = pid_filt->stop_feed;
    > +
    > + if (((--(temp_int->internal->filts_used)) <= 0) &&
    > + ((temp_int->internal->cis_used) <= 0)) {
    > +
    > + printk("%s: Actually removing\n", __func__);
    > +
    > + remove_inode(temp_int->internal);
    > + kfree(pid_filt->internal);
    > + }
    > +
    > + if (pid_filt != NULL)
    > + kfree(pid_filt);
    > +
    > + }
    > +
    > +}
    > +EXPORT_SYMBOL(altera_hw_filt_release);
    > +
    > +void altera_ci_release(void *dev, int ci_nr)
    > +{
    > + struct fpga_inode *temp_int = find_inode(dev);
    > + struct netup_ci_state *state = NULL;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (temp_int != NULL) {
    > + state = temp_int->internal->state[ci_nr - 1];
    > + altera_hw_filt_release(dev, ci_nr);
    > +
    > +
    > + if (((temp_int->internal->filts_used) <= 0) &&
    > + ((--(temp_int->internal->cis_used)) <= 0)) {
    > +
    > + printk("%s: Actually removing\n", __func__);
    > +
    > + remove_inode(temp_int->internal);
    > + kfree(state->internal);
    > + }
    > +
    > + if (state != NULL) {
    > + if (state->ca.data != NULL)
    > + dvb_ca_en50221_release(&state->ca);
    > +
    > + kfree(state);
    > + }
    > + }
    > +
    > +}
    > +EXPORT_SYMBOL(altera_ci_release);
    > +
    > +int altera_ci_start_feed_1(struct dvb_demux_feed *feed);
    > +int altera_ci_stop_feed_1(struct dvb_demux_feed *feed);
    > +int altera_ci_start_feed_2(struct dvb_demux_feed *feed);
    > +int altera_ci_stop_feed_2(struct dvb_demux_feed *feed);
    > +
    > +static void altera_toggle_fullts_streaming(struct netup_hw_pid_filter *pid_filt,
    > + int filt_nr, int onoff)
    > +{
    > + struct fpga_internal *inter = pid_filt->internal;
    > + u8 store = 0;
    > + int i;
    > +
    > + pid_dbg_print("%s: pid_filt->nr[%d] now %s\n", __func__, pid_filt->nr,
    > + onoff ? "off" : "on");
    > +
    > + if (onoff)/* 0 - on, 1 - off */
    > + store = 0xff;/* ignore pid */
    > + else
    > + store = 0;/* enable pid */
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + for (i = 0; i < 1024; i++) {
    > + netup_fpga_op_rw(inter, NETUP_CI_PID_ADDR0, i & 0xff, 0);
    > +
    > + netup_fpga_op_rw(inter, NETUP_CI_PID_ADDR1,
    > + ((i >> 8) & 0x03) | (pid_filt->nr << 2), 0);
    > +
    > + netup_fpga_op_rw(inter, NETUP_CI_PID_DATA, store, 0);
    > + }
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +}
    > +
    > +int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr)
    > +{
    > + struct netup_hw_pid_filter *pid_filt = NULL;
    > + struct fpga_inode *temp_int = find_inode(config->dev);
    > + struct fpga_internal *inter = NULL;
    > + int ret = 0;
    > +
    > + pid_filt = kzalloc(sizeof(struct netup_hw_pid_filter), GFP_KERNEL);
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (!pid_filt) {
    > + ret = -ENOMEM;
    > + goto err;
    > + }
    > +
    > + if (temp_int != NULL) {
    > + inter = temp_int->internal;
    > + (inter->filts_used)++;
    > + printk("%s: Find Internal Structure!\n", __func__);
    > + } else {
    > + inter = kzalloc(sizeof(struct fpga_internal), GFP_KERNEL);
    > + if (!inter) {
    > + ret = -ENOMEM;
    > + goto err;
    > + }
    > +
    > + temp_int = append_internal(inter);
    > + inter->filts_used = 1;
    > + inter->dev = config->dev;
    > + inter->fpga_rw = config->fpga_rw;
    > + mutex_init(&inter->fpga_mutex);
    > + inter->strt_wrk = 1;
    > + printk("%s: Create New Internal Structure!\n", __func__);
    > + }
    > +
    > + printk("%s: setting hw pid filter = 0x%x for ci = %d\n", __func__,
    > + (int)pid_filt, hw_filt_nr - 1);
    > + inter->pid_filt[hw_filt_nr - 1] = pid_filt;
    > + pid_filt->demux = config->demux;
    > + pid_filt->internal = inter;
    > + pid_filt->nr = hw_filt_nr - 1;
    > + /* store old feed controls */
    > + pid_filt->start_feed = config->demux->start_feed;
    > + pid_filt->stop_feed = config->demux->stop_feed;
    > + /* replace with new feed controls */
    > + if (hw_filt_nr == 1) {
    > + pid_filt->demux->start_feed = altera_ci_start_feed_1;
    > + pid_filt->demux->stop_feed = altera_ci_stop_feed_1;
    > + } else if (hw_filt_nr == 2) {
    > + pid_filt->demux->start_feed = altera_ci_start_feed_2;
    > + pid_filt->demux->stop_feed = altera_ci_stop_feed_2;
    > + }
    > +
    > + altera_toggle_fullts_streaming(pid_filt, 0, 1);
    > +
    > + return 0;
    > +err:
    > + printk("%s: Can't init hardware filter: Error %d\n", __func__, ret);
    > + if (pid_filt)
    > + kfree(pid_filt);
    > +
    > + return ret;
    > +}
    > +EXPORT_SYMBOL(altera_hw_filt_init);
    > +
    > +static void altera_pid_control(struct netup_hw_pid_filter *pid_filt,
    > + u16 pid, int onoff)
    > +{
    > + struct fpga_internal *inter = pid_filt->internal;
    > + u8 store = 0;
    > +
    > + if (pid == 0x2000)
    > + return;
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + netup_fpga_op_rw(inter, NETUP_CI_PID_ADDR0, (pid >> 3) & 0xff, 0);
    > + netup_fpga_op_rw(inter, NETUP_CI_PID_ADDR1,
    > + ((pid >> 11) & 0x03) | (pid_filt->nr << 2), 0);
    > +
    > + store = netup_fpga_op_rw(inter, NETUP_CI_PID_DATA, 0, NETUP_CI_FLG_RD);
    > +
    > + if (onoff)/* 0 - on, 1 - off */
    > + store |= (1 << (pid & 7));
    > + else
    > + store &= ~(1 << (pid & 7));
    > +
    > + netup_fpga_op_rw(inter, NETUP_CI_PID_DATA, store, 0);
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + pid_dbg_print("%s: (%d) set pid: %5d 0x%04x '%s'\n", __func__,
    > + pid_filt->nr, pid, pid, onoff ? "off" : "on");
    > +}
    > +
    > +int altera_pid_feed_control(void *demux_dev, int filt_nr,
    > + struct dvb_demux_feed *feed, int onoff)
    > +{
    > + struct fpga_inode *temp_int = find_dinode(demux_dev);
    > + struct fpga_internal *inter = temp_int->internal;
    > + struct netup_hw_pid_filter *pid_filt = inter->pid_filt[filt_nr - 1];
    > +
    > + altera_pid_control(pid_filt, feed->pid, onoff ? 0 : 1);
    > + /* call old feed proc's */
    > + if (onoff)
    > + pid_filt->start_feed(feed);
    > + else
    > + pid_filt->stop_feed(feed);
    > +
    > + if (feed->pid == 0x2000)
    > + altera_toggle_fullts_streaming(pid_filt, filt_nr,
    > + onoff ? 0 : 1);
    > +
    > + return 0;
    > +}
    > +EXPORT_SYMBOL(altera_pid_feed_control);
    > +
    > +int altera_ci_start_feed(struct dvb_demux_feed *feed, int num)
    > +{
    > + altera_pid_feed_control(feed->demux, num, feed, 1);
    > +
    > + return 0;
    > +}
    > +
    > +int altera_ci_stop_feed(struct dvb_demux_feed *feed, int num)
    > +{
    > + altera_pid_feed_control(feed->demux, num, feed, 0);
    > +
    > + return 0;
    > +}
    > +
    > +int altera_ci_start_feed_1(struct dvb_demux_feed *feed)
    > +{
    > + return altera_ci_start_feed(feed, 1);
    > +}
    > +
    > +int altera_ci_stop_feed_1(struct dvb_demux_feed *feed)
    > +{
    > + return altera_ci_stop_feed(feed, 1);
    > +}
    > +
    > +int altera_ci_start_feed_2(struct dvb_demux_feed *feed)
    > +{
    > + return altera_ci_start_feed(feed, 2);
    > +}
    > +
    > +int altera_ci_stop_feed_2(struct dvb_demux_feed *feed)
    > +{
    > + return altera_ci_stop_feed(feed, 2);
    > +}
    > +
    > +int altera_ci_tuner_reset(void *dev, int ci_nr)
    > +{
    > + struct fpga_inode *temp_int = find_inode(dev);
    > + struct fpga_internal *inter = NULL;
    > + u8 store;
    > +
    > + ci_dbg_print("%s\n", __func__);
    > +
    > + if (temp_int == NULL)
    > + return -1;
    > +
    > + if (temp_int->internal == NULL)
    > + return -1;
    > +
    > + inter = temp_int->internal;
    > +
    > + mutex_lock(&inter->fpga_mutex);
    > +
    > + store = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL2, 0, NETUP_CI_FLG_RD);
    > + store &= ~(4 << (2 - ci_nr));
    > + netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL2, store, 0);
    > + msleep(100);
    > + store |= (4 << (2 - ci_nr));
    > + netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL2, store, 0);
    > +
    > + mutex_unlock(&inter->fpga_mutex);
    > +
    > + return 0;
    > +}
    > +EXPORT_SYMBOL(altera_ci_tuner_reset);
    > diff --git a/drivers/media/video/cx23885/altera-ci.h b/drivers/media/video/cx23885/altera-ci.h
    > new file mode 100644
    > index 0000000..ba0c6c0
    > --- /dev/null
    > +++ b/drivers/media/video/cx23885/altera-ci.h
    > @@ -0,0 +1,102 @@
    > +/*
    > + * altera-ci.c
    > + *
    > + * CI driver in conjunction with NetUp Dual DVB-T/C RF CI card
    > + *
    > + * Copyright (C) 2010 NetUP Inc.
    > + * Copyright (C) 2010 Igor M. Liplianin <liplianin@netup.ru>
    > + *
    > + * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
    > + */
    > +#ifndef __ALTERA_CI_H
    > +#define __ALTERA_CI_H
    > +
    > +#define ALT_DATA 0x000000ff
    > +#define ALT_TDI 0x00008000
    > +#define ALT_TDO 0x00004000
    > +#define ALT_TCK 0x00002000
    > +#define ALT_RDY 0x00001000
    > +#define ALT_RD 0x00000800
    > +#define ALT_WR 0x00000400
    > +#define ALT_AD_RG 0x00000200
    > +#define ALT_CS 0x00000100
    > +
    > +struct altera_ci_config {
    > + void *dev;/* main dev, for example cx23885_dev */
    > + void *adapter;/* for CI to connect to */
    > + struct dvb_demux *demux;/* for hardware PID filter to connect to */
    > + int (*fpga_rw) (void *dev, int ad_rg, int val, int rw);
    > +};
    > +
    > +#if defined(CONFIG_MEDIA_ALTERA_CI) || (defined(CONFIG_MEDIA_ALTERA_CI_MODULE) \
    > + && defined(MODULE))
    > +
    > +extern int altera_ci_init(struct altera_ci_config *config, int ci_nr);
    > +extern void altera_ci_release(void *dev, int ci_nr);
    > +extern int altera_ci_irq(void *dev);
    > +extern int altera_ci_tuner_reset(void *dev, int ci_nr);
    > +
    > +#else
    > +
    > +static inline int altera_ci_init(struct altera_ci_config *config, int ci_nr)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +static inline void altera_ci_release(void *dev, int ci_nr)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +static inline int altera_ci_irq(void *dev)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +static int altera_ci_tuner_reset(void *dev, int ci_nr)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +#endif
    > +#if 0
    > +static inline int altera_hw_filt_init(struct altera_ci_config *config,
    > + int hw_filt_nr)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +static inline void altera_hw_filt_release(void *dev, int filt_nr)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +static inline int altera_pid_feed_control(void *dev, int filt_nr,
    > + struct dvb_demux_feed *dvbdmxfeed, int onoff)
    > +{
    > + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    > + return 0;
    > +}
    > +
    > +#endif /* CONFIG_MEDIA_ALTERA_CI */
    > +
    > +#endif /* __ALTERA_CI_H */



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