diff options
Diffstat (limited to 'drivers/media/dvb/bt8xx/dst_ca.c')
| -rw-r--r-- | drivers/media/dvb/bt8xx/dst_ca.c | 725 |
1 files changed, 0 insertions, 725 deletions
diff --git a/drivers/media/dvb/bt8xx/dst_ca.c b/drivers/media/dvb/bt8xx/dst_ca.c deleted file mode 100644 index 66f52f1..0000000 --- a/drivers/media/dvb/bt8xx/dst_ca.c +++ /dev/null @@ -1,725 +0,0 @@ -/* - CA-driver for TwinHan DST Frontend/Card - - Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com) - - 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. -*/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/mutex.h> -#include <linux/string.h> -#include <linux/dvb/ca.h> -#include "dvbdev.h" -#include "dvb_frontend.h" -#include "dst_ca.h" -#include "dst_common.h" - -#define DST_CA_ERROR 0 -#define DST_CA_NOTICE 1 -#define DST_CA_INFO 2 -#define DST_CA_DEBUG 3 - -#define dprintk(x, y, z, format, arg...) do { \ - if (z) { \ - if ((x > DST_CA_ERROR) && (x > y)) \ - printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \ - else if ((x > DST_CA_NOTICE) && (x > y)) \ - printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \ - else if ((x > DST_CA_INFO) && (x > y)) \ - printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \ - else if ((x > DST_CA_DEBUG) && (x > y)) \ - printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \ - } else { \ - if (x > y) \ - printk(format, ## arg); \ - } \ -} while(0) - - -static DEFINE_MUTEX(dst_ca_mutex); -static unsigned int verbose = 5; -module_param(verbose, int, 0644); -MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)"); - -/* Need some more work */ -static int ca_set_slot_descr(void) -{ - /* We could make this more graceful ? */ - return -EOPNOTSUPP; -} - -/* Need some more work */ -static int ca_set_pid(void) -{ - /* We could make this more graceful ? */ - return -EOPNOTSUPP; -} - -static void put_command_and_length(u8 *data, int command, int length) -{ - data[0] = (command >> 16) & 0xff; - data[1] = (command >> 8) & 0xff; - data[2] = command & 0xff; - data[3] = length; -} - -static void put_checksum(u8 *check_string, int length) -{ - dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum."); - dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length); - check_string[length] = dst_check_sum (check_string, length); - dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]); -} - -static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read) -{ - u8 reply; - - mutex_lock(&state->dst_mutex); - dst_comm_init(state); - msleep(65); - - if (write_dst(state, data, len)) { - dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover"); - dst_error_recovery(state); - goto error; - } - if ((dst_pio_disable(state)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed."); - goto error; - } - if (read_dst(state, &reply, GET_ACK) < 0) { - dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover"); - dst_error_recovery(state); - goto error; - } - if (read) { - if (! dst_wait_dst_ready(state, LONG_DELAY)) { - dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready"); - goto error; - } - if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */ - dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover"); - dst_error_recovery(state); - goto error; - } - } - mutex_unlock(&state->dst_mutex); - return 0; - -error: - mutex_unlock(&state->dst_mutex); - return -EIO; -} - - -static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read) -{ - u8 dst_ca_comm_err = 0; - - while (dst_ca_comm_err < RETRIES) { - dprintk(verbose, DST_CA_NOTICE, 1, " Put Command"); - if (dst_ci_command(state, data, ca_string, len, read)) { // If error - dst_error_recovery(state); - dst_ca_comm_err++; // work required here. - } else { - break; - } - } - - if(dst_ca_comm_err == RETRIES) - return -1; - - return 0; -} - - - -static int ca_get_app_info(struct dst_state *state) -{ - int length, str_length; - static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff}; - - put_checksum(&command[0], command[0]); - if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); - return -1; - } - dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !"); - dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================"); - dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]", - state->messages[7], (state->messages[8] << 8) | state->messages[9], - (state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12])); - dprintk(verbose, DST_CA_INFO, 1, " =================================================================================================="); - - // Transform dst message to correct application_info message - length = state->messages[5]; - str_length = length - 6; - if (str_length < 0) { - str_length = 0; - dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering."); - } - - // First, the command and length fields - put_command_and_length(&state->messages[0], CA_APP_INFO, length); - - // Copy application_type, application_manufacturer and manufacturer_code - memcpy(&state->messages[4], &state->messages[7], 5); - - // Set string length and copy string - state->messages[9] = str_length; - memcpy(&state->messages[10], &state->messages[12], str_length); - - return 0; -} - -static int ca_get_ca_info(struct dst_state *state) -{ - int srcPtr, dstPtr, i, num_ids; - static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff}; - const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7; - - put_checksum(&slot_command[0], slot_command[0]); - if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); - return -1; - } - dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !"); - - // Print raw data - dprintk(verbose, DST_CA_INFO, 0, " DST data = ["); - for (i = 0; i < state->messages[0] + 1; i++) { - dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]); - } - dprintk(verbose, DST_CA_INFO, 0, "]\n"); - - // Set the command and length of the output - num_ids = state->messages[in_num_ids_pos]; - if (num_ids >= 100) { - num_ids = 100; - dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering."); - } - put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2); - - dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = ["); - srcPtr = in_system_id_pos; - dstPtr = out_system_id_pos; - for(i = 0; i < num_ids; i++) { - dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]); - // Append to output - state->messages[dstPtr + 0] = state->messages[srcPtr + 0]; - state->messages[dstPtr + 1] = state->messages[srcPtr + 1]; - srcPtr += 2; - dstPtr += 2; - } - dprintk(verbose, DST_CA_INFO, 0, "]\n"); - - return 0; -} - -static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg) -{ - int i; - u8 slot_cap[256]; - static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff}; - - put_checksum(&slot_command[0], slot_command[0]); - if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); - return -1; - } - dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !"); - - /* Will implement the rest soon */ - - dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]); - dprintk(verbose, DST_CA_INFO, 0, "===================================\n"); - for (i = 0; i < slot_cap[0] + 1; i++) - dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]); - dprintk(verbose, DST_CA_INFO, 0, "\n"); - - p_ca_caps->slot_num = 1; - p_ca_caps->slot_type = 1; - p_ca_caps->descr_num = slot_cap[7]; - p_ca_caps->descr_type = 1; - - if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps))) - return -EFAULT; - - return 0; -} - -/* Need some more work */ -static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg) -{ - return -EOPNOTSUPP; -} - - -static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg) -{ - int i; - static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff}; - - u8 *slot_info = state->messages; - - put_checksum(&slot_command[0], 7); - if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); - return -1; - } - dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !"); - - /* Will implement the rest soon */ - - dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]); - dprintk(verbose, DST_CA_INFO, 0, "===================================\n"); - for (i = 0; i < 8; i++) - dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]); - dprintk(verbose, DST_CA_INFO, 0, "\n"); - - if (slot_info[4] & 0x80) { - p_ca_slot_info->flags = CA_CI_MODULE_PRESENT; - p_ca_slot_info->num = 1; - p_ca_slot_info->type = CA_CI; - } else if (slot_info[4] & 0x40) { - p_ca_slot_info->flags = CA_CI_MODULE_READY; - p_ca_slot_info->num = 1; - p_ca_slot_info->type = CA_CI; - } else - p_ca_slot_info->flags = 0; - - if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info))) - return -EFAULT; - - return 0; -} - - -static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg) -{ - u8 i = 0; - u32 command = 0; - - if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) - return -EFAULT; - - if (p_ca_message->msg) { - dprintk(verbose, DST_CA_NOTICE, 1, " Message = [%02x %02x %02x]", p_ca_message->msg[0], p_ca_message->msg[1], p_ca_message->msg[2]); - - for (i = 0; i < 3; i++) { - command = command | p_ca_message->msg[i]; - if (i < 2) - command = command << 8; - } - dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command); - - switch (command) { - case CA_APP_INFO: - memcpy(p_ca_message->msg, state->messages, 128); - if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) ) - return -EFAULT; - break; - case CA_INFO: - memcpy(p_ca_message->msg, state->messages, 128); - if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) ) - return -EFAULT; - break; - } - } - - return 0; -} - -static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length) -{ - if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) { - hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */ - hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */ - } else { - if (length > 247) { - dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !"); - return -1; - } - hw_buffer->msg[0] = (length & 0xff) + 7; - hw_buffer->msg[1] = 0x40; - hw_buffer->msg[2] = 0x03; - hw_buffer->msg[3] = 0x00; - hw_buffer->msg[4] = 0x03; - hw_buffer->msg[5] = length & 0xff; - hw_buffer->msg[6] = 0x00; - - /* - * Need to compute length for EN50221 section 8.3.2, for the time being - * assuming 8.3.2 is not applicable - */ - memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length); - } - - return 0; -} - -static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply) -{ - if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed."); - dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST."); - rdc_reset_state(state); - return -1; - } - dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success."); - - return 0; -} - -static u32 asn_1_decode(u8 *asn_1_array) -{ - u8 length_field = 0, word_count = 0, count = 0; - u32 length = 0; - - length_field = asn_1_array[0]; - dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field); - if (length_field < 0x80) { - length = length_field & 0x7f; - dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length); - } else { - word_count = length_field & 0x7f; - for (count = 0; count < word_count; count++) { - length = length << 8; - length += asn_1_array[count + 1]; - dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length); - } - } - return length; -} - -static int debug_string(u8 *msg, u32 length, u32 offset) -{ - u32 i; - - dprintk(verbose, DST_CA_DEBUG, 0, " String=[ "); - for (i = offset; i < length; i++) - dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]); - dprintk(verbose, DST_CA_DEBUG, 0, "]\n"); - - return 0; -} - - -static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query) -{ - u32 length = 0; - u8 tag_length = 8; - - length = asn_1_decode(&p_ca_message->msg[3]); - dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length); - debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */ - - memset(hw_buffer->msg, '\0', length); - handle_dst_tag(state, p_ca_message, hw_buffer, length); - put_checksum(hw_buffer->msg, hw_buffer->msg[0]); - - debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */ - write_to_8820(state, hw_buffer, (length + tag_length), reply); - - return 0; -} - - -/* Board supports CA PMT reply ? */ -static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer) -{ - int ca_pmt_reply_test = 0; - - /* Do test board */ - /* Not there yet but soon */ - - /* CA PMT Reply capable */ - if (ca_pmt_reply_test) { - if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !"); - return -1; - } - - /* Process CA PMT Reply */ - /* will implement soon */ - dprintk(verbose, DST_CA_ERROR, 1, " Not there yet"); - } - /* CA PMT Reply not capable */ - if (!ca_pmt_reply_test) { - if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !"); - return -1; - } - dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !"); - /* put a dummy message */ - - } - return 0; -} - -static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg) -{ - int i = 0; - - u32 command = 0; - struct ca_msg *hw_buffer; - int result = 0; - - if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) { - dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure"); - return -ENOMEM; - } - dprintk(verbose, DST_CA_DEBUG, 1, " "); - - if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) { - result = -EFAULT; - goto free_mem_and_exit; - } - - - if (p_ca_message->msg) { - /* EN50221 tag */ - command = 0; - - for (i = 0; i < 3; i++) { - command = command | p_ca_message->msg[i]; - if (i < 2) - command = command << 8; - } - dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command); - - switch (command) { - case CA_PMT: - dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT"); - if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !"); - break; - case CA_PMT_REPLY: - dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY"); - /* Have to handle the 2 basic types of cards here */ - if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !"); - break; - case CA_APP_INFO_ENQUIRY: // only for debugging - dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information"); - - if ((ca_get_app_info(state)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !"); - break; - case CA_INFO_ENQUIRY: - dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information"); - - if ((ca_get_ca_info(state)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !"); - break; - } - } -free_mem_and_exit: - kfree (hw_buffer); - - return result; -} - -static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioctl_arg) -{ - struct dvb_device *dvbdev; - struct dst_state *state; - struct ca_slot_info *p_ca_slot_info; - struct ca_caps *p_ca_caps; - struct ca_msg *p_ca_message; - void __user *arg = (void __user *)ioctl_arg; - int result = 0; - - mutex_lock(&dst_ca_mutex); - dvbdev = file->private_data; - state = (struct dst_state *)dvbdev->priv; - p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL); - p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL); - p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL); - if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) { - dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure"); - result = -ENOMEM; - goto free_mem_and_exit; - } - - /* We have now only the standard ioctl's, the driver is upposed to handle internals. */ - switch (cmd) { - case CA_SEND_MSG: - dprintk(verbose, DST_CA_INFO, 1, " Sending message"); - if ((ca_send_message(state, p_ca_message, arg)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !"); - result = -1; - goto free_mem_and_exit; - } - break; - case CA_GET_MSG: - dprintk(verbose, DST_CA_INFO, 1, " Getting message"); - if ((ca_get_message(state, p_ca_message, arg)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !"); - break; - case CA_RESET: - dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST"); - dst_error_bailout(state); - msleep(4000); - break; - case CA_GET_SLOT_INFO: - dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info"); - if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !"); - break; - case CA_GET_CAP: - dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities"); - if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !"); - break; - case CA_GET_DESCR_INFO: - dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description"); - if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !"); - break; - case CA_SET_DESCR: - dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler"); - if ((ca_set_slot_descr()) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !"); - break; - case CA_SET_PID: - dprintk(verbose, DST_CA_INFO, 1, " Setting PID"); - if ((ca_set_pid()) < 0) { - dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !"); - result = -1; - goto free_mem_and_exit; - } - dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !"); - default: - result = -EOPNOTSUPP; - }; - free_mem_and_exit: - kfree (p_ca_message); - kfree (p_ca_slot_info); - kfree (p_ca_caps); - - mutex_unlock(&dst_ca_mutex); - return result; -} - -static int dst_ca_open(struct inode *inode, struct file *file) -{ - dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file); - try_module_get(THIS_MODULE); - - return 0; -} - -static int dst_ca_release(struct inode *inode, struct file *file) -{ - dprintk(verbose, DST_CA_DEBUG, 1, " Device closed."); - module_put(THIS_MODULE); - - return 0; -} - -static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset) -{ - ssize_t bytes_read = 0; - - dprintk(verbose, DST_CA_DEBUG, 1, " Device read."); - - return bytes_read; -} - -static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset) -{ - dprintk(verbose, DST_CA_DEBUG, 1, " Device write."); - - return 0; -} - -static const struct file_operations dst_ca_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = dst_ca_ioctl, - .open = dst_ca_open, - .release = dst_ca_release, - .read = dst_ca_read, - .write = dst_ca_write, - .llseek = noop_llseek, -}; - -static struct dvb_device dvbdev_ca = { - .priv = NULL, - .users = 1, - .readers = 1, - .writers = 1, - .fops = &dst_ca_fops -}; - -struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter) -{ - struct dvb_device *dvbdev; - - dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device"); - if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) { - dst->dst_ca = dvbdev; - return dst->dst_ca; - } - - return NULL; -} - -EXPORT_SYMBOL(dst_ca_attach); - -MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver"); -MODULE_AUTHOR("Manu Abraham"); -MODULE_LICENSE("GPL"); |
