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Date: Sun, 16 Jan 2011 15:52:38 -0200
From: Mauro Carvalho Chehab <mchehab@...radead.org>
To: "Igor M. Liplianin" <liplianin@...by>
CC: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [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@...up.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@...up.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@...up.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@...up.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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