diff options
Diffstat (limited to 'drivers/media/video/cx23885/altera-ci.c')
| -rw-r--r-- | drivers/media/video/cx23885/altera-ci.c | 838 |
1 files changed, 838 insertions, 0 deletions
diff --git a/drivers/media/video/cx23885/altera-ci.c b/drivers/media/video/cx23885/altera-ci.c new file mode 100644 index 00000000000..678539b2acf --- /dev/null +++ b/drivers/media/video/cx23885/altera-ci.c @@ -0,0 +1,838 @@ +/* + * 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 &= 0x0f; + 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 & 0xcf) | (1 << (5 - state->nr)), 0); + + mutex_unlock(&inter->fpga_mutex); + + for (;;) { + mdelay(50); + + mutex_lock(&inter->fpga_mutex); + + ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, + 0, NETUP_CI_FLG_RD); + mutex_unlock(&inter->fpga_mutex); + + if ((ret & (1 << (5 - state->nr))) == 0) + break; + if (time_after(jiffies, t_out)) + break; + } + + + 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 & 0x0f) | (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; + + /* pid 0-0x1f always enabled, don't touch them */ + if ((pid == 0x2000) || (pid < 0x20)) + 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); + /* pid 0-0x1f always enabled */ + netup_fpga_op_rw(inter, NETUP_CI_PID_DATA, + (i > 3 ? store : 0), 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 = %p for ci = %d\n", __func__, + 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 = %p for ci = %d\n", __func__, + 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); |