--- /dev/null
+/*
+ * altera-ci.c
+ *
+ * CI driver in conjunction with NetUp Dual DVB-T/C RF CI card
+ *
+ * Copyright (C) 2010,2011 NetUP Inc.
+ * Copyright (C) 2010,2011 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 altera_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 altera_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 altera_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 altera_ci_op_cam(struct dvb_ca_en50221 *en50221, int slot,
+ u8 flag, u8 read, int addr, u8 val)
+{
+
+ struct altera_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 altera_ci_read_attribute_mem(struct dvb_ca_en50221 *en50221,
+ int slot, int addr)
+{
+ return altera_ci_op_cam(en50221, slot, 0, NETUP_CI_FLG_RD, addr, 0);
+}
+
+int altera_ci_write_attribute_mem(struct dvb_ca_en50221 *en50221,
+ int slot, int addr, u8 data)
+{
+ return altera_ci_op_cam(en50221, slot, 0, 0, addr, data);
+}
+
+int altera_ci_read_cam_ctl(struct dvb_ca_en50221 *en50221, int slot, u8 addr)
+{
+ return altera_ci_op_cam(en50221, slot, NETUP_CI_FLG_CTL,
+ NETUP_CI_FLG_RD, addr, 0);
+}
+
+int altera_ci_write_cam_ctl(struct dvb_ca_en50221 *en50221, int slot,
+ u8 addr, u8 data)
+{
+ return altera_ci_op_cam(en50221, slot, NETUP_CI_FLG_CTL, 0, addr, data);
+}
+
+int altera_ci_slot_reset(struct dvb_ca_en50221 *en50221, int slot)
+{
+ struct altera_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);
+
+ ci_dbg_print("%s: %d msecs\n", __func__,
+ jiffies_to_msecs(jiffies + msecs_to_jiffies(9999) - t_out));
+
+ return 0;
+}
+
+int altera_ci_slot_shutdown(struct dvb_ca_en50221 *en50221, int slot)
+{
+ /* not implemented */
+ return 0;
+}
+
+int altera_ci_slot_ts_ctl(struct dvb_ca_en50221 *en50221, int slot)
+{
+ struct altera_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 altera_poll_ci_slot_status(struct dvb_ca_en50221 *en50221, int slot,
+ int open)
+{
+ struct altera_ci_state *state = en50221->data;
+
+ if (0 != slot)
+ return -EINVAL;
+
+ return state->status;
+}
+
+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)) {
+
+ ci_dbg_print("%s: Actually removing\n", __func__);
+
+ remove_inode(temp_int->internal);
+ kfree(pid_filt->internal);
+ }
+
+ 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 altera_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)) {
+
+ ci_dbg_print("%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);
+
+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");
+}
+
+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_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_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)++;
+ ci_dbg_print("%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;
+ ci_dbg_print("%s: Create New Internal Structure!\n", __func__);
+ }
+
+ ci_dbg_print("%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:
+ ci_dbg_print("%s: Can't init hardware filter: Error %d\n",
+ __func__, ret);
+
+ kfree(pid_filt);
+
+ return ret;
+}
+EXPORT_SYMBOL(altera_hw_filt_init);
+
+int altera_ci_init(struct altera_ci_config *config, int ci_nr)
+{
+ struct altera_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 altera_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)++;
+ ci_dbg_print("%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;
+ ci_dbg_print("%s: Create New Internal Structure!\n", __func__);
+ }
+
+ ci_dbg_print("%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 = altera_ci_read_attribute_mem;
+ state->ca.write_attribute_mem = altera_ci_write_attribute_mem;
+ state->ca.read_cam_control = altera_ci_read_cam_ctl;
+ state->ca.write_cam_control = altera_ci_write_cam_ctl;
+ state->ca.slot_reset = altera_ci_slot_reset;
+ state->ca.slot_shutdown = altera_ci_slot_shutdown;
+ state->ca.slot_ts_enable = altera_ci_slot_ts_ctl;
+ state->ca.poll_slot_status = altera_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;
+ }
+
+ ci_dbg_print("%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);
+
+ ci_dbg_print("%s: NetUP CI Revision = 0x%x\n", __func__, ret);
+
+ schedule_work(&inter->work);
+
+ return 0;
+err:
+ ci_dbg_print("%s: Cannot initialize CI: Error %d.\n", __func__, ret);
+
+ kfree(state);
+
+ return ret;
+}
+EXPORT_SYMBOL(altera_ci_init);
+
+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);
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