Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 1685 deletions

diff --git a/ANDROID_3.4.5/drivers/media/radio/wl128x/fmdrv_common.c b/ANDROID_3.4.5/drivers/media/radio/wl128x/fmdrv_common.c
deleted file mode 100644
index bf867a6b..00000000
--- a/ANDROID_3.4.5/drivers/media/radio/wl128x/fmdrv_common.c
+++ /dev/null
@@ -1,1685 +0,0 @@
-/*
- *  FM Driver for Connectivity chip of Texas Instruments.
- *
- *  This sub-module of FM driver is common for FM RX and TX
- *  functionality. This module is responsible for:
- *  1) Forming group of Channel-8 commands to perform particular
- *     functionality (eg., frequency set require more than
- *     one Channel-8 command to be sent to the chip).
- *  2) Sending each Channel-8 command to the chip and reading
- *     response back over Shared Transport.
- *  3) Managing TX and RX Queues and Tasklets.
- *  4) Handling FM Interrupt packet and taking appropriate action.
- *  5) Loading FM firmware to the chip (common, FM TX, and FM RX
- *     firmware files based on mode selection)
- *
- *  Copyright (C) 2011 Texas Instruments
- *  Author: Raja Mani <raja_mani@ti.com>
- *  Author: Manjunatha Halli <manjunatha_halli@ti.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#include <linux/module.h>
-#include <linux/firmware.h>
-#include <linux/delay.h>
-#include "fmdrv.h"
-#include "fmdrv_v4l2.h"
-#include "fmdrv_common.h"
-#include <linux/ti_wilink_st.h>
-#include "fmdrv_rx.h"
-#include "fmdrv_tx.h"
-
-/* Region info */
-static struct region_info region_configs[] = {
-	/* Europe/US */
-	{
-	 .chanl_space = FM_CHANNEL_SPACING_200KHZ * FM_FREQ_MUL,
-	 .bot_freq = 87500,	/* 87.5 MHz */
-	 .top_freq = 108000,	/* 108 MHz */
-	 .fm_band = 0,
-	 },
-	/* Japan */
-	{
-	 .chanl_space = FM_CHANNEL_SPACING_200KHZ * FM_FREQ_MUL,
-	 .bot_freq = 76000,	/* 76 MHz */
-	 .top_freq = 90000,	/* 90 MHz */
-	 .fm_band = 1,
-	 },
-};
-
-/* Band selection */
-static u8 default_radio_region;	/* Europe/US */
-module_param(default_radio_region, byte, 0);
-MODULE_PARM_DESC(default_radio_region, "Region: 0=Europe/US, 1=Japan");
-
-/* RDS buffer blocks */
-static u32 default_rds_buf = 300;
-module_param(default_rds_buf, uint, 0444);
-MODULE_PARM_DESC(rds_buf, "RDS buffer entries");
-
-/* Radio Nr */
-static u32 radio_nr = -1;
-module_param(radio_nr, int, 0444);
-MODULE_PARM_DESC(radio_nr, "Radio Nr");
-
-/* FM irq handlers forward declaration */
-static void fm_irq_send_flag_getcmd(struct fmdev *);
-static void fm_irq_handle_flag_getcmd_resp(struct fmdev *);
-static void fm_irq_handle_hw_malfunction(struct fmdev *);
-static void fm_irq_handle_rds_start(struct fmdev *);
-static void fm_irq_send_rdsdata_getcmd(struct fmdev *);
-static void fm_irq_handle_rdsdata_getcmd_resp(struct fmdev *);
-static void fm_irq_handle_rds_finish(struct fmdev *);
-static void fm_irq_handle_tune_op_ended(struct fmdev *);
-static void fm_irq_handle_power_enb(struct fmdev *);
-static void fm_irq_handle_low_rssi_start(struct fmdev *);
-static void fm_irq_afjump_set_pi(struct fmdev *);
-static void fm_irq_handle_set_pi_resp(struct fmdev *);
-static void fm_irq_afjump_set_pimask(struct fmdev *);
-static void fm_irq_handle_set_pimask_resp(struct fmdev *);
-static void fm_irq_afjump_setfreq(struct fmdev *);
-static void fm_irq_handle_setfreq_resp(struct fmdev *);
-static void fm_irq_afjump_enableint(struct fmdev *);
-static void fm_irq_afjump_enableint_resp(struct fmdev *);
-static void fm_irq_start_afjump(struct fmdev *);
-static void fm_irq_handle_start_afjump_resp(struct fmdev *);
-static void fm_irq_afjump_rd_freq(struct fmdev *);
-static void fm_irq_afjump_rd_freq_resp(struct fmdev *);
-static void fm_irq_handle_low_rssi_finish(struct fmdev *);
-static void fm_irq_send_intmsk_cmd(struct fmdev *);
-static void fm_irq_handle_intmsk_cmd_resp(struct fmdev *);
-
-/*
- * When FM common module receives interrupt packet, following handlers
- * will be executed one after another to service the interrupt(s)
- */
-enum fmc_irq_handler_index {
-	FM_SEND_FLAG_GETCMD_IDX,
-	FM_HANDLE_FLAG_GETCMD_RESP_IDX,
-
-	/* HW malfunction irq handler */
-	FM_HW_MAL_FUNC_IDX,
-
-	/* RDS threshold reached irq handler */
-	FM_RDS_START_IDX,
-	FM_RDS_SEND_RDS_GETCMD_IDX,
-	FM_RDS_HANDLE_RDS_GETCMD_RESP_IDX,
-	FM_RDS_FINISH_IDX,
-
-	/* Tune operation ended irq handler */
-	FM_HW_TUNE_OP_ENDED_IDX,
-
-	/* TX power enable irq handler */
-	FM_HW_POWER_ENB_IDX,
-
-	/* Low RSSI irq handler */
-	FM_LOW_RSSI_START_IDX,
-	FM_AF_JUMP_SETPI_IDX,
-	FM_AF_JUMP_HANDLE_SETPI_RESP_IDX,
-	FM_AF_JUMP_SETPI_MASK_IDX,
-	FM_AF_JUMP_HANDLE_SETPI_MASK_RESP_IDX,
-	FM_AF_JUMP_SET_AF_FREQ_IDX,
-	FM_AF_JUMP_HANDLE_SET_AFFREQ_RESP_IDX,
-	FM_AF_JUMP_ENABLE_INT_IDX,
-	FM_AF_JUMP_ENABLE_INT_RESP_IDX,
-	FM_AF_JUMP_START_AFJUMP_IDX,
-	FM_AF_JUMP_HANDLE_START_AFJUMP_RESP_IDX,
-	FM_AF_JUMP_RD_FREQ_IDX,
-	FM_AF_JUMP_RD_FREQ_RESP_IDX,
-	FM_LOW_RSSI_FINISH_IDX,
-
-	/* Interrupt process post action */
-	FM_SEND_INTMSK_CMD_IDX,
-	FM_HANDLE_INTMSK_CMD_RESP_IDX,
-};
-
-/* FM interrupt handler table */
-static int_handler_prototype int_handler_table[] = {
-	fm_irq_send_flag_getcmd,
-	fm_irq_handle_flag_getcmd_resp,
-	fm_irq_handle_hw_malfunction,
-	fm_irq_handle_rds_start, /* RDS threshold reached irq handler */
-	fm_irq_send_rdsdata_getcmd,
-	fm_irq_handle_rdsdata_getcmd_resp,
-	fm_irq_handle_rds_finish,
-	fm_irq_handle_tune_op_ended,
-	fm_irq_handle_power_enb, /* TX power enable irq handler */
-	fm_irq_handle_low_rssi_start,
-	fm_irq_afjump_set_pi,
-	fm_irq_handle_set_pi_resp,
-	fm_irq_afjump_set_pimask,
-	fm_irq_handle_set_pimask_resp,
-	fm_irq_afjump_setfreq,
-	fm_irq_handle_setfreq_resp,
-	fm_irq_afjump_enableint,
-	fm_irq_afjump_enableint_resp,
-	fm_irq_start_afjump,
-	fm_irq_handle_start_afjump_resp,
-	fm_irq_afjump_rd_freq,
-	fm_irq_afjump_rd_freq_resp,
-	fm_irq_handle_low_rssi_finish,
-	fm_irq_send_intmsk_cmd, /* Interrupt process post action */
-	fm_irq_handle_intmsk_cmd_resp
-};
-
-long (*g_st_write) (struct sk_buff *skb);
-static struct completion wait_for_fmdrv_reg_comp;
-
-static inline void fm_irq_call(struct fmdev *fmdev)
-{
-	fmdev->irq_info.handlers[fmdev->irq_info.stage](fmdev);
-}
-
-/* Continue next function in interrupt handler table */
-static inline void fm_irq_call_stage(struct fmdev *fmdev, u8 stage)
-{
-	fmdev->irq_info.stage = stage;
-	fm_irq_call(fmdev);
-}
-
-static inline void fm_irq_timeout_stage(struct fmdev *fmdev, u8 stage)
-{
-	fmdev->irq_info.stage = stage;
-	mod_timer(&fmdev->irq_info.timer, jiffies + FM_DRV_TX_TIMEOUT);
-}
-
-#ifdef FM_DUMP_TXRX_PKT
- /* To dump outgoing FM Channel-8 packets */
-inline void dump_tx_skb_data(struct sk_buff *skb)
-{
-	int len, len_org;
-	u8 index;
-	struct fm_cmd_msg_hdr *cmd_hdr;
-
-	cmd_hdr = (struct fm_cmd_msg_hdr *)skb->data;
-	printk(KERN_INFO "<<%shdr:%02x len:%02x opcode:%02x type:%s dlen:%02x",
-	       fm_cb(skb)->completion ? " " : "*", cmd_hdr->hdr,
-	       cmd_hdr->len, cmd_hdr->op,
-	       cmd_hdr->rd_wr ? "RD" : "WR", cmd_hdr->dlen);
-
-	len_org = skb->len - FM_CMD_MSG_HDR_SIZE;
-	if (len_org > 0) {
-		printk("\n   data(%d): ", cmd_hdr->dlen);
-		len = min(len_org, 14);
-		for (index = 0; index < len; index++)
-			printk("%x ",
-			       skb->data[FM_CMD_MSG_HDR_SIZE + index]);
-		printk("%s", (len_org > 14) ? ".." : "");
-	}
-	printk("\n");
-}
-
- /* To dump incoming FM Channel-8 packets */
-inline void dump_rx_skb_data(struct sk_buff *skb)
-{
-	int len, len_org;
-	u8 index;
-	struct fm_event_msg_hdr *evt_hdr;
-
-	evt_hdr = (struct fm_event_msg_hdr *)skb->data;
-	printk(KERN_INFO ">> hdr:%02x len:%02x sts:%02x numhci:%02x "
-	    "opcode:%02x type:%s dlen:%02x", evt_hdr->hdr, evt_hdr->len,
-	    evt_hdr->status, evt_hdr->num_fm_hci_cmds, evt_hdr->op,
-	    (evt_hdr->rd_wr) ? "RD" : "WR", evt_hdr->dlen);
-
-	len_org = skb->len - FM_EVT_MSG_HDR_SIZE;
-	if (len_org > 0) {
-		printk("\n   data(%d): ", evt_hdr->dlen);
-		len = min(len_org, 14);
-		for (index = 0; index < len; index++)
-			printk("%x ",
-			       skb->data[FM_EVT_MSG_HDR_SIZE + index]);
-		printk("%s", (len_org > 14) ? ".." : "");
-	}
-	printk("\n");
-}
-#endif
-
-void fmc_update_region_info(struct fmdev *fmdev, u8 region_to_set)
-{
-	fmdev->rx.region = region_configs[region_to_set];
-}
-
-/*
- * FM common sub-module will schedule this tasklet whenever it receives
- * FM packet from ST driver.
- */
-static void recv_tasklet(unsigned long arg)
-{
-	struct fmdev *fmdev;
-	struct fm_irq *irq_info;
-	struct fm_event_msg_hdr *evt_hdr;
-	struct sk_buff *skb;
-	u8 num_fm_hci_cmds;
-	unsigned long flags;
-
-	fmdev = (struct fmdev *)arg;
-	irq_info = &fmdev->irq_info;
-	/* Process all packets in the RX queue */
-	while ((skb = skb_dequeue(&fmdev->rx_q))) {
-		if (skb->len < sizeof(struct fm_event_msg_hdr)) {
-			fmerr("skb(%p) has only %d bytes, "
-				"at least need %zu bytes to decode\n", skb,
-				skb->len, sizeof(struct fm_event_msg_hdr));
-			kfree_skb(skb);
-			continue;
-		}
-
-		evt_hdr = (void *)skb->data;
-		num_fm_hci_cmds = evt_hdr->num_fm_hci_cmds;
-
-		/* FM interrupt packet? */
-		if (evt_hdr->op == FM_INTERRUPT) {
-			/* FM interrupt handler started already? */
-			if (!test_bit(FM_INTTASK_RUNNING, &fmdev->flag)) {
-				set_bit(FM_INTTASK_RUNNING, &fmdev->flag);
-				if (irq_info->stage != 0) {
-					fmerr("Inval stage resetting to zero\n");
-					irq_info->stage = 0;
-				}
-
-				/*
-				 * Execute first function in interrupt handler
-				 * table.
-				 */
-				irq_info->handlers[irq_info->stage](fmdev);
-			} else {
-				set_bit(FM_INTTASK_SCHEDULE_PENDING, &fmdev->flag);
-			}
-			kfree_skb(skb);
-		}
-		/* Anyone waiting for this with completion handler? */
-		else if (evt_hdr->op == fmdev->pre_op && fmdev->resp_comp != NULL) {
-
-			spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
-			fmdev->resp_skb = skb;
-			spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
-			complete(fmdev->resp_comp);
-
-			fmdev->resp_comp = NULL;
-			atomic_set(&fmdev->tx_cnt, 1);
-		}
-		/* Is this for interrupt handler? */
-		else if (evt_hdr->op == fmdev->pre_op && fmdev->resp_comp == NULL) {
-			if (fmdev->resp_skb != NULL)
-				fmerr("Response SKB ptr not NULL\n");
-
-			spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
-			fmdev->resp_skb = skb;
-			spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
-
-			/* Execute interrupt handler where state index points */
-			irq_info->handlers[irq_info->stage](fmdev);
-
-			kfree_skb(skb);
-			atomic_set(&fmdev->tx_cnt, 1);
-		} else {
-			fmerr("Nobody claimed SKB(%p),purging\n", skb);
-		}
-
-		/*
-		 * Check flow control field. If Num_FM_HCI_Commands field is
-		 * not zero, schedule FM TX tasklet.
-		 */
-		if (num_fm_hci_cmds && atomic_read(&fmdev->tx_cnt))
-			if (!skb_queue_empty(&fmdev->tx_q))
-				tasklet_schedule(&fmdev->tx_task);
-	}
-}
-
-/* FM send tasklet: is scheduled when FM packet has to be sent to chip */
-static void send_tasklet(unsigned long arg)
-{
-	struct fmdev *fmdev;
-	struct sk_buff *skb;
-	int len;
-
-	fmdev = (struct fmdev *)arg;
-
-	if (!atomic_read(&fmdev->tx_cnt))
-		return;
-
-	/* Check, is there any timeout happened to last transmitted packet */
-	if ((jiffies - fmdev->last_tx_jiffies) > FM_DRV_TX_TIMEOUT) {
-		fmerr("TX timeout occurred\n");
-		atomic_set(&fmdev->tx_cnt, 1);
-	}
-
-	/* Send queued FM TX packets */
-	skb = skb_dequeue(&fmdev->tx_q);
-	if (!skb)
-		return;
-
-	atomic_dec(&fmdev->tx_cnt);
-	fmdev->pre_op = fm_cb(skb)->fm_op;
-
-	if (fmdev->resp_comp != NULL)
-		fmerr("Response completion handler is not NULL\n");
-
-	fmdev->resp_comp = fm_cb(skb)->completion;
-
-	/* Write FM packet to ST driver */
-	len = g_st_write(skb);
-	if (len < 0) {
-		kfree_skb(skb);
-		fmdev->resp_comp = NULL;
-		fmerr("TX tasklet failed to send skb(%p)\n", skb);
-		atomic_set(&fmdev->tx_cnt, 1);
-	} else {
-		fmdev->last_tx_jiffies = jiffies;
-	}
-}
-
-/*
- * Queues FM Channel-8 packet to FM TX queue and schedules FM TX tasklet for
- * transmission
- */
-static int fm_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type,	void *payload,
-		int payload_len, struct completion *wait_completion)
-{
-	struct sk_buff *skb;
-	struct fm_cmd_msg_hdr *hdr;
-	int size;
-
-	if (fm_op >= FM_INTERRUPT) {
-		fmerr("Invalid fm opcode - %d\n", fm_op);
-		return -EINVAL;
-	}
-	if (test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag) && payload == NULL) {
-		fmerr("Payload data is NULL during fw download\n");
-		return -EINVAL;
-	}
-	if (!test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag))
-		size =
-		    FM_CMD_MSG_HDR_SIZE + ((payload == NULL) ? 0 : payload_len);
-	else
-		size = payload_len;
-
-	skb = alloc_skb(size, GFP_ATOMIC);
-	if (!skb) {
-		fmerr("No memory to create new SKB\n");
-		return -ENOMEM;
-	}
-	/*
-	 * Don't fill FM header info for the commands which come from
-	 * FM firmware file.
-	 */
-	if (!test_bit(FM_FW_DW_INPROGRESS, &fmdev->flag) ||
-			test_bit(FM_INTTASK_RUNNING, &fmdev->flag)) {
-		/* Fill command header info */
-		hdr = (struct fm_cmd_msg_hdr *)skb_put(skb, FM_CMD_MSG_HDR_SIZE);
-		hdr->hdr = FM_PKT_LOGICAL_CHAN_NUMBER;	/* 0x08 */
-
-		/* 3 (fm_opcode,rd_wr,dlen) + payload len) */
-		hdr->len = ((payload == NULL) ? 0 : payload_len) + 3;
-
-		/* FM opcode */
-		hdr->op = fm_op;
-
-		/* read/write type */
-		hdr->rd_wr = type;
-		hdr->dlen = payload_len;
-		fm_cb(skb)->fm_op = fm_op;
-
-		/*
-		 * If firmware download has finished and the command is
-		 * not a read command then payload is != NULL - a write
-		 * command with u16 payload - convert to be16
-		 */
-		if (payload != NULL)
-			*(u16 *)payload = cpu_to_be16(*(u16 *)payload);
-
-	} else if (payload != NULL) {
-		fm_cb(skb)->fm_op = *((u8 *)payload + 2);
-	}
-	if (payload != NULL)
-		memcpy(skb_put(skb, payload_len), payload, payload_len);
-
-	fm_cb(skb)->completion = wait_completion;
-	skb_queue_tail(&fmdev->tx_q, skb);
-	tasklet_schedule(&fmdev->tx_task);
-
-	return 0;
-}
-
-/* Sends FM Channel-8 command to the chip and waits for the response */
-int fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
-		unsigned int payload_len, void *response, int *response_len)
-{
-	struct sk_buff *skb;
-	struct fm_event_msg_hdr *evt_hdr;
-	unsigned long flags;
-	int ret;
-
-	init_completion(&fmdev->maintask_comp);
-	ret = fm_send_cmd(fmdev, fm_op, type, payload, payload_len,
-			    &fmdev->maintask_comp);
-	if (ret)
-		return ret;
-
-	if (!wait_for_completion_timeout(&fmdev->maintask_comp,
-					 FM_DRV_TX_TIMEOUT)) {
-		fmerr("Timeout(%d sec),didn't get reg"
-			   "completion signal from RX tasklet\n",
-			   jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
-		return -ETIMEDOUT;
-	}
-	if (!fmdev->resp_skb) {
-		fmerr("Response SKB is missing\n");
-		return -EFAULT;
-	}
-	spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
-	skb = fmdev->resp_skb;
-	fmdev->resp_skb = NULL;
-	spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
-
-	evt_hdr = (void *)skb->data;
-	if (evt_hdr->status != 0) {
-		fmerr("Received event pkt status(%d) is not zero\n",
-			   evt_hdr->status);
-		kfree_skb(skb);
-		return -EIO;
-	}
-	/* Send response data to caller */
-	if (response != NULL && response_len != NULL && evt_hdr->dlen) {
-		/* Skip header info and copy only response data */
-		skb_pull(skb, sizeof(struct fm_event_msg_hdr));
-		memcpy(response, skb->data, evt_hdr->dlen);
-		*response_len = evt_hdr->dlen;
-	} else if (response_len != NULL && evt_hdr->dlen == 0) {
-		*response_len = 0;
-	}
-	kfree_skb(skb);
-
-	return 0;
-}
-
-/* --- Helper functions used in FM interrupt handlers ---*/
-static inline int check_cmdresp_status(struct fmdev *fmdev,
-		struct sk_buff **skb)
-{
-	struct fm_event_msg_hdr *fm_evt_hdr;
-	unsigned long flags;
-
-	del_timer(&fmdev->irq_info.timer);
-
-	spin_lock_irqsave(&fmdev->resp_skb_lock, flags);
-	*skb = fmdev->resp_skb;
-	fmdev->resp_skb = NULL;
-	spin_unlock_irqrestore(&fmdev->resp_skb_lock, flags);
-
-	fm_evt_hdr = (void *)(*skb)->data;
-	if (fm_evt_hdr->status != 0) {
-		fmerr("irq: opcode %x response status is not zero "
-				"Initiating irq recovery process\n",
-				fm_evt_hdr->op);
-
-		mod_timer(&fmdev->irq_info.timer, jiffies + FM_DRV_TX_TIMEOUT);
-		return -1;
-	}
-
-	return 0;
-}
-
-static inline void fm_irq_common_cmd_resp_helper(struct fmdev *fmdev, u8 stage)
-{
-	struct sk_buff *skb;
-
-	if (!check_cmdresp_status(fmdev, &skb))
-		fm_irq_call_stage(fmdev, stage);
-}
-
-/*
- * Interrupt process timeout handler.
- * One of the irq handler did not get proper response from the chip. So take
- * recovery action here. FM interrupts are disabled in the beginning of
- * interrupt process. Therefore reset stage index to re-enable default
- * interrupts. So that next interrupt will be processed as usual.
- */
-static void int_timeout_handler(unsigned long data)
-{
-	struct fmdev *fmdev;
-	struct fm_irq *fmirq;
-
-	fmdbg("irq: timeout,trying to re-enable fm interrupts\n");
-	fmdev = (struct fmdev *)data;
-	fmirq = &fmdev->irq_info;
-	fmirq->retry++;
-
-	if (fmirq->retry > FM_IRQ_TIMEOUT_RETRY_MAX) {
-		/* Stop recovery action (interrupt reenable process) and
-		 * reset stage index & retry count values */
-		fmirq->stage = 0;
-		fmirq->retry = 0;
-		fmerr("Recovery action failed during"
-				"irq processing, max retry reached\n");
-		return;
-	}
-	fm_irq_call_stage(fmdev, FM_SEND_INTMSK_CMD_IDX);
-}
-
-/* --------- FM interrupt handlers ------------*/
-static void fm_irq_send_flag_getcmd(struct fmdev *fmdev)
-{
-	u16 flag;
-
-	/* Send FLAG_GET command , to know the source of interrupt */
-	if (!fm_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, sizeof(flag), NULL))
-		fm_irq_timeout_stage(fmdev, FM_HANDLE_FLAG_GETCMD_RESP_IDX);
-}
-
-static void fm_irq_handle_flag_getcmd_resp(struct fmdev *fmdev)
-{
-	struct sk_buff *skb;
-	struct fm_event_msg_hdr *fm_evt_hdr;
-
-	if (check_cmdresp_status(fmdev, &skb))
-		return;
-
-	fm_evt_hdr = (void *)skb->data;
-
-	/* Skip header info and copy only response data */
-	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
-	memcpy(&fmdev->irq_info.flag, skb->data, fm_evt_hdr->dlen);
-
-	fmdev->irq_info.flag = be16_to_cpu(fmdev->irq_info.flag);
-	fmdbg("irq: flag register(0x%x)\n", fmdev->irq_info.flag);
-
-	/* Continue next function in interrupt handler table */
-	fm_irq_call_stage(fmdev, FM_HW_MAL_FUNC_IDX);
-}
-
-static void fm_irq_handle_hw_malfunction(struct fmdev *fmdev)
-{
-	if (fmdev->irq_info.flag & FM_MAL_EVENT & fmdev->irq_info.mask)
-		fmerr("irq: HW MAL int received - do nothing\n");
-
-	/* Continue next function in interrupt handler table */
-	fm_irq_call_stage(fmdev, FM_RDS_START_IDX);
-}
-
-static void fm_irq_handle_rds_start(struct fmdev *fmdev)
-{
-	if (fmdev->irq_info.flag & FM_RDS_EVENT & fmdev->irq_info.mask) {
-		fmdbg("irq: rds threshold reached\n");
-		fmdev->irq_info.stage = FM_RDS_SEND_RDS_GETCMD_IDX;
-	} else {
-		/* Continue next function in interrupt handler table */
-		fmdev->irq_info.stage = FM_HW_TUNE_OP_ENDED_IDX;
-	}
-
-	fm_irq_call(fmdev);
-}
-
-static void fm_irq_send_rdsdata_getcmd(struct fmdev *fmdev)
-{
-	/* Send the command to read RDS data from the chip */
-	if (!fm_send_cmd(fmdev, RDS_DATA_GET, REG_RD, NULL,
-			    (FM_RX_RDS_FIFO_THRESHOLD * 3), NULL))
-		fm_irq_timeout_stage(fmdev, FM_RDS_HANDLE_RDS_GETCMD_RESP_IDX);
-}
-
-/* Keeps track of current RX channel AF (Alternate Frequency) */
-static void fm_rx_update_af_cache(struct fmdev *fmdev, u8 af)
-{
-	struct tuned_station_info *stat_info = &fmdev->rx.stat_info;
-	u8 reg_idx = fmdev->rx.region.fm_band;
-	u8 index;
-	u32 freq;
-
-	/* First AF indicates the number of AF follows. Reset the list */
-	if ((af >= FM_RDS_1_AF_FOLLOWS) && (af <= FM_RDS_25_AF_FOLLOWS)) {
-		fmdev->rx.stat_info.af_list_max = (af - FM_RDS_1_AF_FOLLOWS + 1);
-		fmdev->rx.stat_info.afcache_size = 0;
-		fmdbg("No of expected AF : %d\n", fmdev->rx.stat_info.af_list_max);
-		return;
-	}
-
-	if (af < FM_RDS_MIN_AF)
-		return;
-	if (reg_idx == FM_BAND_EUROPE_US && af > FM_RDS_MAX_AF)
-		return;
-	if (reg_idx == FM_BAND_JAPAN && af > FM_RDS_MAX_AF_JAPAN)
-		return;
-
-	freq = fmdev->rx.region.bot_freq + (af * 100);
-	if (freq == fmdev->rx.freq) {
-		fmdbg("Current freq(%d) is matching with received AF(%d)\n",
-				fmdev->rx.freq, freq);
-		return;
-	}
-	/* Do check in AF cache */
-	for (index = 0; index < stat_info->afcache_size; index++) {
-		if (stat_info->af_cache[index] == freq)
-			break;
-	}
-	/* Reached the limit of the list - ignore the next AF */
-	if (index == stat_info->af_list_max) {
-		fmdbg("AF cache is full\n");
-		return;
-	}
-	/*
-	 * If we reached the end of the list then this AF is not
-	 * in the list - add it.
-	 */
-	if (index == stat_info->afcache_size) {
-		fmdbg("Storing AF %d to cache index %d\n", freq, index);
-		stat_info->af_cache[index] = freq;
-		stat_info->afcache_size++;
-	}
-}
-
-/*
- * Converts RDS buffer data from big endian format
- * to little endian format.
- */
-static void fm_rdsparse_swapbytes(struct fmdev *fmdev,
-		struct fm_rdsdata_format *rds_format)
-{
-	u8 byte1;
-	u8 index = 0;
-	u8 *rds_buff;
-
-	/*
-	 * Since in Orca the 2 RDS Data bytes are in little endian and
-	 * in Dolphin they are in big endian, the parsing of the RDS data
-	 * is chip dependent
-	 */
-	if (fmdev->asci_id != 0x6350) {
-		rds_buff = &rds_format->data.groupdatabuff.buff[0];
-		while (index + 1 < FM_RX_RDS_INFO_FIELD_MAX) {
-			byte1 = rds_buff[index];
-			rds_buff[index] = rds_buff[index + 1];
-			rds_buff[index + 1] = byte1;
-			index += 2;
-		}
-	}
-}
-
-static void fm_irq_handle_rdsdata_getcmd_resp(struct fmdev *fmdev)
-{
-	struct sk_buff *skb;
-	struct fm_rdsdata_format rds_fmt;
-	struct fm_rds *rds = &fmdev->rx.rds;
-	unsigned long group_idx, flags;
-	u8 *rds_data, meta_data, tmpbuf[3];
-	u8 type, blk_idx;
-	u16 cur_picode;
-	u32 rds_len;
-
-	if (check_cmdresp_status(fmdev, &skb))
-		return;
-
-	/* Skip header info */
-	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
-	rds_data = skb->data;
-	rds_len = skb->len;
-
-	/* Parse the RDS data */
-	while (rds_len >= FM_RDS_BLK_SIZE) {
-		meta_data = rds_data[2];
-		/* Get the type: 0=A, 1=B, 2=C, 3=C', 4=D, 5=E */
-		type = (meta_data & 0x07);
-
-		/* Transform the blk type into index sequence (0, 1, 2, 3, 4) */
-		blk_idx = (type <= FM_RDS_BLOCK_C ? type : (type - 1));
-		fmdbg("Block index:%d(%s)\n", blk_idx,
-			   (meta_data & FM_RDS_STATUS_ERR_MASK) ? "Bad" : "Ok");
-
-		if ((meta_data & FM_RDS_STATUS_ERR_MASK) != 0)
-			break;
-
-		if (blk_idx < FM_RDS_BLK_IDX_A || blk_idx > FM_RDS_BLK_IDX_D) {
-			fmdbg("Block sequence mismatch\n");
-			rds->last_blk_idx = -1;
-			break;
-		}
-
-		/* Skip checkword (control) byte and copy only data byte */
-		memcpy(&rds_fmt.data.groupdatabuff.
-				buff[blk_idx * (FM_RDS_BLK_SIZE - 1)],
-				rds_data, (FM_RDS_BLK_SIZE - 1));
-
-		rds->last_blk_idx = blk_idx;
-
-		/* If completed a whole group then handle it */
-		if (blk_idx == FM_RDS_BLK_IDX_D) {
-			fmdbg("Good block received\n");
-			fm_rdsparse_swapbytes(fmdev, &rds_fmt);
-
-			/*
-			 * Extract PI code and store in local cache.
-			 * We need this during AF switch processing.
-			 */
-			cur_picode = be16_to_cpu(rds_fmt.data.groupgeneral.pidata);
-			if (fmdev->rx.stat_info.picode != cur_picode)
-				fmdev->rx.stat_info.picode = cur_picode;
-
-			fmdbg("picode:%d\n", cur_picode);
-
-			group_idx = (rds_fmt.data.groupgeneral.blk_b[0] >> 3);
-			fmdbg("(fmdrv):Group:%ld%s\n", group_idx/2,
-					(group_idx % 2) ? "B" : "A");
-
-			group_idx = 1 << (rds_fmt.data.groupgeneral.blk_b[0] >> 3);
-			if (group_idx == FM_RDS_GROUP_TYPE_MASK_0A) {
-				fm_rx_update_af_cache(fmdev, rds_fmt.data.group0A.af[0]);
-				fm_rx_update_af_cache(fmdev, rds_fmt.data.group0A.af[1]);
-			}
-		}
-		rds_len -= FM_RDS_BLK_SIZE;
-		rds_data += FM_RDS_BLK_SIZE;
-	}
-
-	/* Copy raw rds data to internal rds buffer */
-	rds_data = skb->data;
-	rds_len = skb->len;
-
-	spin_lock_irqsave(&fmdev->rds_buff_lock, flags);
-	while (rds_len > 0) {
-		/*
-		 * Fill RDS buffer as per V4L2 specification.
-		 * Store control byte
-		 */
-		type = (rds_data[2] & 0x07);
-		blk_idx = (type <= FM_RDS_BLOCK_C ? type : (type - 1));
-		tmpbuf[2] = blk_idx;	/* Offset name */
-		tmpbuf[2] |= blk_idx << 3;	/* Received offset */
-
-		/* Store data byte */
-		tmpbuf[0] = rds_data[0];
-		tmpbuf[1] = rds_data[1];
-
-		memcpy(&rds->buff[rds->wr_idx], &tmpbuf, FM_RDS_BLK_SIZE);
-		rds->wr_idx = (rds->wr_idx + FM_RDS_BLK_SIZE) % rds->buf_size;
-
-		/* Check for overflow & start over */
-		if (rds->wr_idx == rds->rd_idx) {
-			fmdbg("RDS buffer overflow\n");
-			rds->wr_idx = 0;
-			rds->rd_idx = 0;
-			break;
-		}
-		rds_len -= FM_RDS_BLK_SIZE;
-		rds_data += FM_RDS_BLK_SIZE;
-	}
-	spin_unlock_irqrestore(&fmdev->rds_buff_lock, flags);
-
-	/* Wakeup read queue */
-	if (rds->wr_idx != rds->rd_idx)
-		wake_up_interruptible(&rds->read_queue);
-
-	fm_irq_call_stage(fmdev, FM_RDS_FINISH_IDX);
-}
-
-static void fm_irq_handle_rds_finish(struct fmdev *fmdev)
-{
-	fm_irq_call_stage(fmdev, FM_HW_TUNE_OP_ENDED_IDX);
-}
-
-static void fm_irq_handle_tune_op_ended(struct fmdev *fmdev)
-{
-	if (fmdev->irq_info.flag & (FM_FR_EVENT | FM_BL_EVENT) & fmdev->
-	    irq_info.mask) {
-		fmdbg("irq: tune ended/bandlimit reached\n");
-		if (test_and_clear_bit(FM_AF_SWITCH_INPROGRESS, &fmdev->flag)) {
-			fmdev->irq_info.stage = FM_AF_JUMP_RD_FREQ_IDX;
-		} else {
-			complete(&fmdev->maintask_comp);
-			fmdev->irq_info.stage = FM_HW_POWER_ENB_IDX;
-		}
-	} else
-		fmdev->irq_info.stage = FM_HW_POWER_ENB_IDX;
-
-	fm_irq_call(fmdev);
-}
-
-static void fm_irq_handle_power_enb(struct fmdev *fmdev)
-{
-	if (fmdev->irq_info.flag & FM_POW_ENB_EVENT) {
-		fmdbg("irq: Power Enabled/Disabled\n");
-		complete(&fmdev->maintask_comp);
-	}
-
-	fm_irq_call_stage(fmdev, FM_LOW_RSSI_START_IDX);
-}
-
-static void fm_irq_handle_low_rssi_start(struct fmdev *fmdev)
-{
-	if ((fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON) &&
-	    (fmdev->irq_info.flag & FM_LEV_EVENT & fmdev->irq_info.mask) &&
-	    (fmdev->rx.freq != FM_UNDEFINED_FREQ) &&
-	    (fmdev->rx.stat_info.afcache_size != 0)) {
-		fmdbg("irq: rssi level has fallen below threshold level\n");
-
-		/* Disable further low RSSI interrupts */
-		fmdev->irq_info.mask &= ~FM_LEV_EVENT;
-
-		fmdev->rx.afjump_idx = 0;
-		fmdev->rx.freq_before_jump = fmdev->rx.freq;
-		fmdev->irq_info.stage = FM_AF_JUMP_SETPI_IDX;
-	} else {
-		/* Continue next function in interrupt handler table */
-		fmdev->irq_info.stage = FM_SEND_INTMSK_CMD_IDX;
-	}
-
-	fm_irq_call(fmdev);
-}
-
-static void fm_irq_afjump_set_pi(struct fmdev *fmdev)
-{
-	u16 payload;
-
-	/* Set PI code - must be updated if the AF list is not empty */
-	payload = fmdev->rx.stat_info.picode;
-	if (!fm_send_cmd(fmdev, RDS_PI_SET, REG_WR, &payload, sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_SETPI_RESP_IDX);
-}
-
-static void fm_irq_handle_set_pi_resp(struct fmdev *fmdev)
-{
-	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_SETPI_MASK_IDX);
-}
-
-/*
- * Set PI mask.
- * 0xFFFF = Enable PI code matching
- * 0x0000 = Disable PI code matching
- */
-static void fm_irq_afjump_set_pimask(struct fmdev *fmdev)
-{
-	u16 payload;
-
-	payload = 0x0000;
-	if (!fm_send_cmd(fmdev, RDS_PI_MASK_SET, REG_WR, &payload, sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_SETPI_MASK_RESP_IDX);
-}
-
-static void fm_irq_handle_set_pimask_resp(struct fmdev *fmdev)
-{
-	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_SET_AF_FREQ_IDX);
-}
-
-static void fm_irq_afjump_setfreq(struct fmdev *fmdev)
-{
-	u16 frq_index;
-	u16 payload;
-
-	fmdbg("Swtich to %d KHz\n", fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx]);
-	frq_index = (fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx] -
-	     fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
-
-	payload = frq_index;
-	if (!fm_send_cmd(fmdev, AF_FREQ_SET, REG_WR, &payload, sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_SET_AFFREQ_RESP_IDX);
-}
-
-static void fm_irq_handle_setfreq_resp(struct fmdev *fmdev)
-{
-	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_ENABLE_INT_IDX);
-}
-
-static void fm_irq_afjump_enableint(struct fmdev *fmdev)
-{
-	u16 payload;
-
-	/* Enable FR (tuning operation ended) interrupt */
-	payload = FM_FR_EVENT;
-	if (!fm_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload, sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_ENABLE_INT_RESP_IDX);
-}
-
-static void fm_irq_afjump_enableint_resp(struct fmdev *fmdev)
-{
-	fm_irq_common_cmd_resp_helper(fmdev, FM_AF_JUMP_START_AFJUMP_IDX);
-}
-
-static void fm_irq_start_afjump(struct fmdev *fmdev)
-{
-	u16 payload;
-
-	payload = FM_TUNER_AF_JUMP_MODE;
-	if (!fm_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
-			sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_HANDLE_START_AFJUMP_RESP_IDX);
-}
-
-static void fm_irq_handle_start_afjump_resp(struct fmdev *fmdev)
-{
-	struct sk_buff *skb;
-
-	if (check_cmdresp_status(fmdev, &skb))
-		return;
-
-	fmdev->irq_info.stage = FM_SEND_FLAG_GETCMD_IDX;
-	set_bit(FM_AF_SWITCH_INPROGRESS, &fmdev->flag);
-	clear_bit(FM_INTTASK_RUNNING, &fmdev->flag);
-}
-
-static void fm_irq_afjump_rd_freq(struct fmdev *fmdev)
-{
-	u16 payload;
-
-	if (!fm_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_AF_JUMP_RD_FREQ_RESP_IDX);
-}
-
-static void fm_irq_afjump_rd_freq_resp(struct fmdev *fmdev)
-{
-	struct sk_buff *skb;
-	u16 read_freq;
-	u32 curr_freq, jumped_freq;
-
-	if (check_cmdresp_status(fmdev, &skb))
-		return;
-
-	/* Skip header info and copy only response data */
-	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
-	memcpy(&read_freq, skb->data, sizeof(read_freq));
-	read_freq = be16_to_cpu(read_freq);
-	curr_freq = fmdev->rx.region.bot_freq + ((u32)read_freq * FM_FREQ_MUL);
-
-	jumped_freq = fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx];
-
-	/* If the frequency was changed the jump succeeded */
-	if ((curr_freq != fmdev->rx.freq_before_jump) && (curr_freq == jumped_freq)) {
-		fmdbg("Successfully switched to alternate freq %d\n", curr_freq);
-		fmdev->rx.freq = curr_freq;
-		fm_rx_reset_rds_cache(fmdev);
-
-		/* AF feature is on, enable low level RSSI interrupt */
-		if (fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
-			fmdev->irq_info.mask |= FM_LEV_EVENT;
-
-		fmdev->irq_info.stage = FM_LOW_RSSI_FINISH_IDX;
-	} else {		/* jump to the next freq in the AF list */
-		fmdev->rx.afjump_idx++;
-
-		/* If we reached the end of the list - stop searching */
-		if (fmdev->rx.afjump_idx >= fmdev->rx.stat_info.afcache_size) {
-			fmdbg("AF switch processing failed\n");
-			fmdev->irq_info.stage = FM_LOW_RSSI_FINISH_IDX;
-		} else {	/* AF List is not over - try next one */
-
-			fmdbg("Trying next freq in AF cache\n");
-			fmdev->irq_info.stage = FM_AF_JUMP_SETPI_IDX;
-		}
-	}
-	fm_irq_call(fmdev);
-}
-
-static void fm_irq_handle_low_rssi_finish(struct fmdev *fmdev)
-{
-	fm_irq_call_stage(fmdev, FM_SEND_INTMSK_CMD_IDX);
-}
-
-static void fm_irq_send_intmsk_cmd(struct fmdev *fmdev)
-{
-	u16 payload;
-
-	/* Re-enable FM interrupts */
-	payload = fmdev->irq_info.mask;
-
-	if (!fm_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
-			sizeof(payload), NULL))
-		fm_irq_timeout_stage(fmdev, FM_HANDLE_INTMSK_CMD_RESP_IDX);
-}
-
-static void fm_irq_handle_intmsk_cmd_resp(struct fmdev *fmdev)
-{
-	struct sk_buff *skb;
-
-	if (check_cmdresp_status(fmdev, &skb))
-		return;
-	/*
-	 * This is last function in interrupt table to be executed.
-	 * So, reset stage index to 0.
-	 */
-	fmdev->irq_info.stage = FM_SEND_FLAG_GETCMD_IDX;
-
-	/* Start processing any pending interrupt */
-	if (test_and_clear_bit(FM_INTTASK_SCHEDULE_PENDING, &fmdev->flag))
-		fmdev->irq_info.handlers[fmdev->irq_info.stage](fmdev);
-	else
-		clear_bit(FM_INTTASK_RUNNING, &fmdev->flag);
-}
-
-/* Returns availability of RDS data in internel buffer */
-int fmc_is_rds_data_available(struct fmdev *fmdev, struct file *file,
-				struct poll_table_struct *pts)
-{
-	poll_wait(file, &fmdev->rx.rds.read_queue, pts);
-	if (fmdev->rx.rds.rd_idx != fmdev->rx.rds.wr_idx)
-		return 0;
-
-	return -EAGAIN;
-}
-
-/* Copies RDS data from internal buffer to user buffer */
-int fmc_transfer_rds_from_internal_buff(struct fmdev *fmdev, struct file *file,
-		u8 __user *buf, size_t count)
-{
-	u32 block_count;
-	unsigned long flags;
-	int ret;
-
-	if (fmdev->rx.rds.wr_idx == fmdev->rx.rds.rd_idx) {
-		if (file->f_flags & O_NONBLOCK)
-			return -EWOULDBLOCK;
-
-		ret = wait_event_interruptible(fmdev->rx.rds.read_queue,
-				(fmdev->rx.rds.wr_idx != fmdev->rx.rds.rd_idx));
-		if (ret)
-			return -EINTR;
-	}
-
-	/* Calculate block count from byte count */
-	count /= 3;
-	block_count = 0;
-	ret = 0;
-
-	spin_lock_irqsave(&fmdev->rds_buff_lock, flags);
-
-	while (block_count < count) {
-		if (fmdev->rx.rds.wr_idx == fmdev->rx.rds.rd_idx)
-			break;
-
-		if (copy_to_user(buf, &fmdev->rx.rds.buff[fmdev->rx.rds.rd_idx],
-					FM_RDS_BLK_SIZE))
-			break;
-
-		fmdev->rx.rds.rd_idx += FM_RDS_BLK_SIZE;
-		if (fmdev->rx.rds.rd_idx >= fmdev->rx.rds.buf_size)
-			fmdev->rx.rds.rd_idx = 0;
-
-		block_count++;
-		buf += FM_RDS_BLK_SIZE;
-		ret += FM_RDS_BLK_SIZE;
-	}
-	spin_unlock_irqrestore(&fmdev->rds_buff_lock, flags);
-	return ret;
-}
-
-int fmc_set_freq(struct fmdev *fmdev, u32 freq_to_set)
-{
-	switch (fmdev->curr_fmmode) {
-	case FM_MODE_RX:
-		return fm_rx_set_freq(fmdev, freq_to_set);
-
-	case FM_MODE_TX:
-		return fm_tx_set_freq(fmdev, freq_to_set);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-int fmc_get_freq(struct fmdev *fmdev, u32 *cur_tuned_frq)
-{
-	if (fmdev->rx.freq == FM_UNDEFINED_FREQ) {
-		fmerr("RX frequency is not set\n");
-		return -EPERM;
-	}
-	if (cur_tuned_frq == NULL) {
-		fmerr("Invalid memory\n");
-		return -ENOMEM;
-	}
-
-	switch (fmdev->curr_fmmode) {
-	case FM_MODE_RX:
-		*cur_tuned_frq = fmdev->rx.freq;
-		return 0;
-
-	case FM_MODE_TX:
-		*cur_tuned_frq = 0;	/* TODO : Change this later */
-		return 0;
-
-	default:
-		return -EINVAL;
-	}
-
-}
-
-int fmc_set_region(struct fmdev *fmdev, u8 region_to_set)
-{
-	switch (fmdev->curr_fmmode) {
-	case FM_MODE_RX:
-		return fm_rx_set_region(fmdev, region_to_set);
-
-	case FM_MODE_TX:
-		return fm_tx_set_region(fmdev, region_to_set);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-int fmc_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
-{
-	switch (fmdev->curr_fmmode) {
-	case FM_MODE_RX:
-		return fm_rx_set_mute_mode(fmdev, mute_mode_toset);
-
-	case FM_MODE_TX:
-		return fm_tx_set_mute_mode(fmdev, mute_mode_toset);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-int fmc_set_stereo_mono(struct fmdev *fmdev, u16 mode)
-{
-	switch (fmdev->curr_fmmode) {
-	case FM_MODE_RX:
-		return fm_rx_set_stereo_mono(fmdev, mode);
-
-	case FM_MODE_TX:
-		return fm_tx_set_stereo_mono(fmdev, mode);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-int fmc_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
-{
-	switch (fmdev->curr_fmmode) {
-	case FM_MODE_RX:
-		return fm_rx_set_rds_mode(fmdev, rds_en_dis);
-
-	case FM_MODE_TX:
-		return fm_tx_set_rds_mode(fmdev, rds_en_dis);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-/* Sends power off command to the chip */
-static int fm_power_down(struct fmdev *fmdev)
-{
-	u16 payload;
-	int ret;
-
-	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
-		fmerr("FM core is not ready\n");
-		return -EPERM;
-	}
-	if (fmdev->curr_fmmode == FM_MODE_OFF) {
-		fmdbg("FM chip is already in OFF state\n");
-		return 0;
-	}
-
-	payload = 0x0;
-	ret = fmc_send_cmd(fmdev, FM_POWER_MODE, REG_WR, &payload,
-		sizeof(payload), NULL, NULL);
-	if (ret < 0)
-		return ret;
-
-	return fmc_release(fmdev);
-}
-
-/* Reads init command from FM firmware file and loads to the chip */
-static int fm_download_firmware(struct fmdev *fmdev, const u8 *fw_name)
-{
-	const struct firmware *fw_entry;
-	struct bts_header *fw_header;
-	struct bts_action *action;
-	struct bts_action_delay *delay;
-	u8 *fw_data;
-	int ret, fw_len, cmd_cnt;
-
-	cmd_cnt = 0;
-	set_bit(FM_FW_DW_INPROGRESS, &fmdev->flag);
-
-	ret = request_firmware(&fw_entry, fw_name,
-				&fmdev->radio_dev->dev);
-	if (ret < 0) {
-		fmerr("Unable to read firmware(%s) content\n", fw_name);
-		return ret;
-	}
-	fmdbg("Firmware(%s) length : %d bytes\n", fw_name, fw_entry->size);
-
-	fw_data = (void *)fw_entry->data;
-	fw_len = fw_entry->size;
-
-	fw_header = (struct bts_header *)fw_data;
-	if (fw_header->magic != FM_FW_FILE_HEADER_MAGIC) {
-		fmerr("%s not a legal TI firmware file\n", fw_name);
-		ret = -EINVAL;
-		goto rel_fw;
-	}
-	fmdbg("FW(%s) magic number : 0x%x\n", fw_name, fw_header->magic);
-
-	/* Skip file header info , we already verified it */
-	fw_data += sizeof(struct bts_header);
-	fw_len -= sizeof(struct bts_header);
-
-	while (fw_data && fw_len > 0) {
-		action = (struct bts_action *)fw_data;
-
-		switch (action->type) {
-		case ACTION_SEND_COMMAND:	/* Send */
-			if (fmc_send_cmd(fmdev, 0, 0, action->data,
-						action->size, NULL, NULL))
-				goto rel_fw;
-
-			cmd_cnt++;
-			break;
-
-		case ACTION_DELAY:	/* Delay */
-			delay = (struct bts_action_delay *)action->data;
-			mdelay(delay->msec);
-			break;
-		}
-
-		fw_data += (sizeof(struct bts_action) + (action->size));
-		fw_len -= (sizeof(struct bts_action) + (action->size));
-	}
-	fmdbg("Firmware commands(%d) loaded to chip\n", cmd_cnt);
-rel_fw:
-	release_firmware(fw_entry);
-	clear_bit(FM_FW_DW_INPROGRESS, &fmdev->flag);
-
-	return ret;
-}
-
-/* Loads default RX configuration to the chip */
-static int load_default_rx_configuration(struct fmdev *fmdev)
-{
-	int ret;
-
-	ret = fm_rx_set_volume(fmdev, FM_DEFAULT_RX_VOLUME);
-	if (ret < 0)
-		return ret;
-
-	return fm_rx_set_rssi_threshold(fmdev, FM_DEFAULT_RSSI_THRESHOLD);
-}
-
-/* Does FM power on sequence */
-static int fm_power_up(struct fmdev *fmdev, u8 mode)
-{
-	u16 payload, asic_id, asic_ver;
-	int resp_len, ret;
-	u8 fw_name[50];
-
-	if (mode >= FM_MODE_ENTRY_MAX) {
-		fmerr("Invalid firmware download option\n");
-		return -EINVAL;
-	}
-
-	/*
-	 * Initialize FM common module. FM GPIO toggling is
-	 * taken care in Shared Transport driver.
-	 */
-	ret = fmc_prepare(fmdev);
-	if (ret < 0) {
-		fmerr("Unable to prepare FM Common\n");
-		return ret;
-	}
-
-	payload = FM_ENABLE;
-	if (fmc_send_cmd(fmdev, FM_POWER_MODE, REG_WR, &payload,
-			sizeof(payload), NULL, NULL))
-		goto rel;
-
-	/* Allow the chip to settle down in Channel-8 mode */
-	msleep(20);
-
-	if (fmc_send_cmd(fmdev, ASIC_ID_GET, REG_RD, NULL,
-			sizeof(asic_id), &asic_id, &resp_len))
-		goto rel;
-
-	if (fmc_send_cmd(fmdev, ASIC_VER_GET, REG_RD, NULL,
-			sizeof(asic_ver), &asic_ver, &resp_len))
-		goto rel;
-
-	fmdbg("ASIC ID: 0x%x , ASIC Version: %d\n",
-		be16_to_cpu(asic_id), be16_to_cpu(asic_ver));
-
-	sprintf(fw_name, "%s_%x.%d.bts", FM_FMC_FW_FILE_START,
-		be16_to_cpu(asic_id), be16_to_cpu(asic_ver));
-
-	ret = fm_download_firmware(fmdev, fw_name);
-	if (ret < 0) {
-		fmdbg("Failed to download firmware file %s\n", fw_name);
-		goto rel;
-	}
-	sprintf(fw_name, "%s_%x.%d.bts", (mode == FM_MODE_RX) ?
-			FM_RX_FW_FILE_START : FM_TX_FW_FILE_START,
-			be16_to_cpu(asic_id), be16_to_cpu(asic_ver));
-
-	ret = fm_download_firmware(fmdev, fw_name);
-	if (ret < 0) {
-		fmdbg("Failed to download firmware file %s\n", fw_name);
-		goto rel;
-	} else
-		return ret;
-rel:
-	return fmc_release(fmdev);
-}
-
-/* Set FM Modes(TX, RX, OFF) */
-int fmc_set_mode(struct fmdev *fmdev, u8 fm_mode)
-{
-	int ret = 0;
-
-	if (fm_mode >= FM_MODE_ENTRY_MAX) {
-		fmerr("Invalid FM mode\n");
-		return -EINVAL;
-	}
-	if (fmdev->curr_fmmode == fm_mode) {
-		fmdbg("Already fm is in mode(%d)\n", fm_mode);
-		return ret;
-	}
-
-	switch (fm_mode) {
-	case FM_MODE_OFF:	/* OFF Mode */
-		ret = fm_power_down(fmdev);
-		if (ret < 0) {
-			fmerr("Failed to set OFF mode\n");
-			return ret;
-		}
-		break;
-
-	case FM_MODE_TX:	/* TX Mode */
-	case FM_MODE_RX:	/* RX Mode */
-		/* Power down before switching to TX or RX mode */
-		if (fmdev->curr_fmmode != FM_MODE_OFF) {
-			ret = fm_power_down(fmdev);
-			if (ret < 0) {
-				fmerr("Failed to set OFF mode\n");
-				return ret;
-			}
-			msleep(30);
-		}
-		ret = fm_power_up(fmdev, fm_mode);
-		if (ret < 0) {
-			fmerr("Failed to load firmware\n");
-			return ret;
-		}
-	}
-	fmdev->curr_fmmode = fm_mode;
-
-	/* Set default configuration */
-	if (fmdev->curr_fmmode == FM_MODE_RX) {
-		fmdbg("Loading default rx configuration..\n");
-		ret = load_default_rx_configuration(fmdev);
-		if (ret < 0)
-			fmerr("Failed to load default values\n");
-	}
-
-	return ret;
-}
-
-/* Returns current FM mode (TX, RX, OFF) */
-int fmc_get_mode(struct fmdev *fmdev, u8 *fmmode)
-{
-	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
-		fmerr("FM core is not ready\n");
-		return -EPERM;
-	}
-	if (fmmode == NULL) {
-		fmerr("Invalid memory\n");
-		return -ENOMEM;
-	}
-
-	*fmmode = fmdev->curr_fmmode;
-	return 0;
-}
-
-/* Called by ST layer when FM packet is available */
-static long fm_st_receive(void *arg, struct sk_buff *skb)
-{
-	struct fmdev *fmdev;
-
-	fmdev = (struct fmdev *)arg;
-
-	if (skb == NULL) {
-		fmerr("Invalid SKB received from ST\n");
-		return -EFAULT;
-	}
-
-	if (skb->cb[0] != FM_PKT_LOGICAL_CHAN_NUMBER) {
-		fmerr("Received SKB (%p) is not FM Channel 8 pkt\n", skb);
-		return -EINVAL;
-	}
-
-	memcpy(skb_push(skb, 1), &skb->cb[0], 1);
-	skb_queue_tail(&fmdev->rx_q, skb);
-	tasklet_schedule(&fmdev->rx_task);
-
-	return 0;
-}
-
-/*
- * Called by ST layer to indicate protocol registration completion
- * status.
- */
-static void fm_st_reg_comp_cb(void *arg, char data)
-{
-	struct fmdev *fmdev;
-
-	fmdev = (struct fmdev *)arg;
-	fmdev->streg_cbdata = data;
-	complete(&wait_for_fmdrv_reg_comp);
-}
-
-/*
- * This function will be called from FM V4L2 open function.
- * Register with ST driver and initialize driver data.
- */
-int fmc_prepare(struct fmdev *fmdev)
-{
-	static struct st_proto_s fm_st_proto;
-	int ret;
-
-	if (test_bit(FM_CORE_READY, &fmdev->flag)) {
-		fmdbg("FM Core is already up\n");
-		return 0;
-	}
-
-	memset(&fm_st_proto, 0, sizeof(fm_st_proto));
-	fm_st_proto.recv = fm_st_receive;
-	fm_st_proto.match_packet = NULL;
-	fm_st_proto.reg_complete_cb = fm_st_reg_comp_cb;
-	fm_st_proto.write = NULL; /* TI ST driver will fill write pointer */
-	fm_st_proto.priv_data = fmdev;
-	fm_st_proto.chnl_id = 0x08;
-	fm_st_proto.max_frame_size = 0xff;
-	fm_st_proto.hdr_len = 1;
-	fm_st_proto.offset_len_in_hdr = 0;
-	fm_st_proto.len_size = 1;
-	fm_st_proto.reserve = 1;
-
-	ret = st_register(&fm_st_proto);
-	if (ret == -EINPROGRESS) {
-		init_completion(&wait_for_fmdrv_reg_comp);
-		fmdev->streg_cbdata = -EINPROGRESS;
-		fmdbg("%s waiting for ST reg completion signal\n", __func__);
-
-		if (!wait_for_completion_timeout(&wait_for_fmdrv_reg_comp,
-						 FM_ST_REG_TIMEOUT)) {
-			fmerr("Timeout(%d sec), didn't get reg "
-					"completion signal from ST\n",
-					jiffies_to_msecs(FM_ST_REG_TIMEOUT) / 1000);
-			return -ETIMEDOUT;
-		}
-		if (fmdev->streg_cbdata != 0) {
-			fmerr("ST reg comp CB called with error "
-					"status %d\n", fmdev->streg_cbdata);
-			return -EAGAIN;
-		}
-
-		ret = 0;
-	} else if (ret == -1) {
-		fmerr("st_register failed %d\n", ret);
-		return -EAGAIN;
-	}
-
-	if (fm_st_proto.write != NULL) {
-		g_st_write = fm_st_proto.write;
-	} else {
-		fmerr("Failed to get ST write func pointer\n");
-		ret = st_unregister(&fm_st_proto);
-		if (ret < 0)
-			fmerr("st_unregister failed %d\n", ret);
-		return -EAGAIN;
-	}
-
-	spin_lock_init(&fmdev->rds_buff_lock);
-	spin_lock_init(&fmdev->resp_skb_lock);
-
-	/* Initialize TX queue and TX tasklet */
-	skb_queue_head_init(&fmdev->tx_q);
-	tasklet_init(&fmdev->tx_task, send_tasklet, (unsigned long)fmdev);
-
-	/* Initialize RX Queue and RX tasklet */
-	skb_queue_head_init(&fmdev->rx_q);
-	tasklet_init(&fmdev->rx_task, recv_tasklet, (unsigned long)fmdev);
-
-	fmdev->irq_info.stage = 0;
-	atomic_set(&fmdev->tx_cnt, 1);
-	fmdev->resp_comp = NULL;
-
-	init_timer(&fmdev->irq_info.timer);
-	fmdev->irq_info.timer.function = &int_timeout_handler;
-	fmdev->irq_info.timer.data = (unsigned long)fmdev;
-	/*TODO: add FM_STIC_EVENT later */
-	fmdev->irq_info.mask = FM_MAL_EVENT;
-
-	/* Region info */
-	memcpy(&fmdev->rx.region, &region_configs[default_radio_region],
-			sizeof(struct region_info));
-
-	fmdev->rx.mute_mode = FM_MUTE_OFF;
-	fmdev->rx.rf_depend_mute = FM_RX_RF_DEPENDENT_MUTE_OFF;
-	fmdev->rx.rds.flag = FM_RDS_DISABLE;
-	fmdev->rx.freq = FM_UNDEFINED_FREQ;
-	fmdev->rx.rds_mode = FM_RDS_SYSTEM_RDS;
-	fmdev->rx.af_mode = FM_RX_RDS_AF_SWITCH_MODE_OFF;
-	fmdev->irq_info.retry = 0;
-
-	fm_rx_reset_rds_cache(fmdev);
-	init_waitqueue_head(&fmdev->rx.rds.read_queue);
-
-	fm_rx_reset_station_info(fmdev);
-	set_bit(FM_CORE_READY, &fmdev->flag);
-
-	return ret;
-}
-
-/*
- * This function will be called from FM V4L2 release function.
- * Unregister from ST driver.
- */
-int fmc_release(struct fmdev *fmdev)
-{
-	static struct st_proto_s fm_st_proto;
-	int ret;
-
-	if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
-		fmdbg("FM Core is already down\n");
-		return 0;
-	}
-	/* Service pending read */
-	wake_up_interruptible(&fmdev->rx.rds.read_queue);
-
-	tasklet_kill(&fmdev->tx_task);
-	tasklet_kill(&fmdev->rx_task);
-
-	skb_queue_purge(&fmdev->tx_q);
-	skb_queue_purge(&fmdev->rx_q);
-
-	fmdev->resp_comp = NULL;
-	fmdev->rx.freq = 0;
-
-	memset(&fm_st_proto, 0, sizeof(fm_st_proto));
-	fm_st_proto.chnl_id = 0x08;
-
-	ret = st_unregister(&fm_st_proto);
-
-	if (ret < 0)
-		fmerr("Failed to de-register FM from ST %d\n", ret);
-	else
-		fmdbg("Successfully unregistered from ST\n");
-
-	clear_bit(FM_CORE_READY, &fmdev->flag);
-	return ret;
-}
-
-/*
- * Module init function. Ask FM V4L module to register video device.
- * Allocate memory for FM driver context and RX RDS buffer.
- */
-static int __init fm_drv_init(void)
-{
-	struct fmdev *fmdev = NULL;
-	int ret = -ENOMEM;
-
-	fmdbg("FM driver version %s\n", FM_DRV_VERSION);
-
-	fmdev = kzalloc(sizeof(struct fmdev), GFP_KERNEL);
-	if (NULL == fmdev) {
-		fmerr("Can't allocate operation structure memory\n");
-		return ret;
-	}
-	fmdev->rx.rds.buf_size = default_rds_buf * FM_RDS_BLK_SIZE;
-	fmdev->rx.rds.buff = kzalloc(fmdev->rx.rds.buf_size, GFP_KERNEL);
-	if (NULL == fmdev->rx.rds.buff) {
-		fmerr("Can't allocate rds ring buffer\n");
-		goto rel_dev;
-	}
-
-	ret = fm_v4l2_init_video_device(fmdev, radio_nr);
-	if (ret < 0)
-		goto rel_rdsbuf;
-
-	fmdev->irq_info.handlers = int_handler_table;
-	fmdev->curr_fmmode = FM_MODE_OFF;
-	fmdev->tx_data.pwr_lvl = FM_PWR_LVL_DEF;
-	fmdev->tx_data.preemph = FM_TX_PREEMPH_50US;
-	return ret;
-
-rel_rdsbuf:
-	kfree(fmdev->rx.rds.buff);
-rel_dev:
-	kfree(fmdev);
-
-	return ret;
-}
-
-/* Module exit function. Ask FM V4L module to unregister video device */
-static void __exit fm_drv_exit(void)
-{
-	struct fmdev *fmdev = NULL;
-
-	fmdev = fm_v4l2_deinit_video_device();
-	if (fmdev != NULL) {
-		kfree(fmdev->rx.rds.buff);
-		kfree(fmdev);
-	}
-}
-
-module_init(fm_drv_init);
-module_exit(fm_drv_exit);
-
-/* ------------- Module Info ------------- */
-MODULE_AUTHOR("Manjunatha Halli <manjunatha_halli@ti.com>");
-MODULE_DESCRIPTION("FM Driver for TI's Connectivity chip. " FM_DRV_VERSION);
-MODULE_VERSION(FM_DRV_VERSION);
-MODULE_LICENSE("GPL");