X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/2c0b4a49174edd0b00eca8e71334957f9dccee0b..60197a65d9f9a115722864b7aec15f0047b84355:/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c?ds=inline
diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c b/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c
index 9f5c0047a..35b32e852 100644
--- a/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c
+++ b/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c
@@ -58,16 +58,6 @@
#include <asm/ifxmips/ifx_ssc_defines.h>
#include <asm/ifxmips/ifx_ssc.h>
-#ifdef SSC_FRAME_INT_ENABLE
-#undef SSC_FRAME_INT_ENABLE
-#endif
-
-#define not_yet
-
-#define SPI_VINETIC
-
-
-
/* allow the user to set the major device number */
static int maj = 0;
@@ -78,37 +68,19 @@ static int maj = 0;
*/
static struct ifx_ssc_port *isp;
-/* prototypes for fops */
-static ssize_t ifx_ssc_read (struct file *, char *, size_t, loff_t *);
-static ssize_t ifx_ssc_write (struct file *, const char *, size_t, loff_t *);
-//static unsigned int ifx_ssc_poll(struct file *, struct poll_table_struct *);
-int ifx_ssc_ioctl (struct inode *, struct file *, unsigned int,
- unsigned long);
-int ifx_ssc_open (struct inode *, struct file *);
-int ifx_ssc_close (struct inode *, struct file *);
-
/* other forward declarations */
static unsigned int ifx_ssc_get_kernel_clk (struct ifx_ssc_port *info);
static void tx_int (struct ifx_ssc_port *);
extern unsigned int ifxmips_get_fpi_hz (void);
-extern void mask_and_ack_ifxmips_irq (unsigned int irq_nr);
-
-static struct file_operations ifx_ssc_fops = {
- .owner = THIS_MODULE,
- .read = ifx_ssc_read,
- .write = ifx_ssc_write,
- .ioctl = ifx_ssc_ioctl,
- .open = ifx_ssc_open,
- .release = ifx_ssc_close,
-};
+extern void ifxmips_mask_and_ack_irq (unsigned int irq_nr);
static inline unsigned int
ifx_ssc_get_kernel_clk (struct ifx_ssc_port *info)
{
unsigned int rmc;
- rmc = (readl(IFXMIPS_SSC_CLC) & IFX_CLC_RUN_DIVIDER_MASK) >> IFX_CLC_RUN_DIVIDER_OFFSET;
+ rmc = (ifxmips_r32(IFXMIPS_SSC_CLC) & IFX_CLC_RUN_DIVIDER_MASK) >> IFX_CLC_RUN_DIVIDER_OFFSET;
if (rmc == 0)
{
printk ("ifx_ssc_get_kernel_clk rmc==0 \n");
@@ -117,49 +89,6 @@ ifx_ssc_get_kernel_clk (struct ifx_ssc_port *info)
return ifxmips_get_fpi_hz () / rmc;
}
-#ifndef not_yet
-#ifdef IFX_SSC_INT_USE_BH
-/*
- * This routine is used by the interrupt handler to schedule
- * processing in the software interrupt portion of the driver
- * (also known as the "bottom half"). This can be called any
- * number of times for any channel without harm.
- */
-static inline void
-ifx_ssc_sched_event (struct ifx_ssc_port *info, int event)
-{
- info->event |= 1 << event; /* remember what kind of event and who */
- queue_task (&info->tqueue, &tq_cyclades); /* it belongs to */
- mark_bh (CYCLADES_BH); /* then trigger event */
-}
-
-static void
-do_softint (void *private_)
-{
- struct ifx_ssc_port *info = (struct ifx_ssc_port *) private_;
-
- if (test_and_clear_bit (Cy_EVENT_HANGUP, &info->event))
- {
- wake_up_interruptible (&info->open_wait);
- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CALLOUT_ACTIVE);
- }
-
- if (test_and_clear_bit (Cy_EVENT_OPEN_WAKEUP, &info->event))
- wake_up_interruptible (&info->open_wait);
-
- if (test_and_clear_bit (Cy_EVENT_DELTA_WAKEUP, &info->event))
- wake_up_interruptible (&info->delta_msr_wait);
-
- if (test_and_clear_bit (Cy_EVENT_WRITE_WAKEUP, &info->event))
- wake_up_interruptible (&tty->write_wait);
-#ifdef Z_WAKE
- if (test_and_clear_bit (Cy_EVENT_SHUTDOWN_WAKEUP, &info->event))
- wake_up_interruptible (&info->shutdown_wait);
-#endif
-}
-#endif
-#endif
-
inline static void
rx_int (struct ifx_ssc_port *info)
{
@@ -168,12 +97,12 @@ rx_int (struct ifx_ssc_port *info)
unsigned long *tmp_ptr;
unsigned int rx_valid_cnt;
/* number of words waiting in the RX FIFO */
- fifo_fill_lev = (readl(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_RECEIVED_WORDS_MASK) >> IFX_SSC_FSTAT_RECEIVED_WORDS_OFFSET;
+ fifo_fill_lev = (ifxmips_r32(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_RECEIVED_WORDS_MASK) >> IFX_SSC_FSTAT_RECEIVED_WORDS_OFFSET;
bytes_in_buf = info->rxbuf_end - info->rxbuf_ptr;
// transfer with 32 bits per entry
while ((bytes_in_buf >= 4) && (fifo_fill_lev > 0)) {
tmp_ptr = (unsigned long *) info->rxbuf_ptr;
- *tmp_ptr = readl(IFXMIPS_SSC_RB);
+ *tmp_ptr = ifxmips_r32(IFXMIPS_SSC_RB);
info->rxbuf_ptr += 4;
info->stats.rxBytes += 4;
fifo_fill_lev--;
@@ -182,14 +111,14 @@ rx_int (struct ifx_ssc_port *info)
// now do the rest as mentioned in STATE.RXBV
while ((bytes_in_buf > 0) && (fifo_fill_lev > 0)) {
- rx_valid_cnt = (readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_RX_BYTE_VALID_MASK) >> IFX_SSC_STATE_RX_BYTE_VALID_OFFSET;
+ rx_valid_cnt = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_RX_BYTE_VALID_MASK) >> IFX_SSC_STATE_RX_BYTE_VALID_OFFSET;
if (rx_valid_cnt == 0)
break;
if (rx_valid_cnt > bytes_in_buf)
rx_valid_cnt = bytes_in_buf;
- tmp_val = readl(IFXMIPS_SSC_RB);
+ tmp_val = ifxmips_r32(IFXMIPS_SSC_RB);
for (i = 0; i < rx_valid_cnt; i++)
{
@@ -203,14 +132,14 @@ rx_int (struct ifx_ssc_port *info)
// check if transfer is complete
if (info->rxbuf_ptr >= info->rxbuf_end)
{
- disable_irq(info->rxirq);
+ disable_irq(IFXMIPS_SSC_RIR);
wake_up_interruptible (&info->rwait);
- } else if ((info->opts.modeRxTx == IFX_SSC_MODE_RX) && (readl(IFXMIPS_SSC_RXCNT) == 0))
+ } else if ((info->opts.modeRxTx == IFX_SSC_MODE_RX) && (ifxmips_r32(IFXMIPS_SSC_RXCNT) == 0))
{
if (info->rxbuf_end - info->rxbuf_ptr < IFX_SSC_RXREQ_BLOCK_SIZE)
- writel((info->rxbuf_end - info->rxbuf_ptr) << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
+ ifxmips_w32((info->rxbuf_end - info->rxbuf_ptr) << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
else
- writel(IFX_SSC_RXREQ_BLOCK_SIZE << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
+ ifxmips_w32(IFX_SSC_RXREQ_BLOCK_SIZE << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
}
}
@@ -219,8 +148,8 @@ tx_int (struct ifx_ssc_port *info)
{
int fifo_space, fill, i;
- fifo_space = ((readl(IFXMIPS_SSC_ID) & IFX_SSC_PERID_TXFS_MASK) >> IFX_SSC_PERID_TXFS_OFFSET)
- - ((readl(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_TRANSMIT_WORDS_MASK) >> IFX_SSC_FSTAT_TRANSMIT_WORDS_OFFSET);
+ fifo_space = ((ifxmips_r32(IFXMIPS_SSC_ID) & IFX_SSC_PERID_TXFS_MASK) >> IFX_SSC_PERID_TXFS_OFFSET)
+ - ((ifxmips_r32(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_TRANSMIT_WORDS_MASK) >> IFX_SSC_FSTAT_TRANSMIT_WORDS_OFFSET);
if (fifo_space == 0)
return;
@@ -233,7 +162,7 @@ tx_int (struct ifx_ssc_port *info)
for (i = 0; i < fill / 4; i++)
{
// at first 32 bit access
- writel(*(UINT32 *) info->txbuf_ptr, IFXMIPS_SSC_TB);
+ ifxmips_w32(*(UINT32 *) info->txbuf_ptr, IFXMIPS_SSC_TB);
info->txbuf_ptr += 4;
}
@@ -261,7 +190,7 @@ tx_int (struct ifx_ssc_port *info)
// check if transmission complete
if (info->txbuf_ptr >= info->txbuf_end)
{
- disable_irq(info->txirq);
+ disable_irq(IFXMIPS_SSC_TIR);
kfree (info->txbuf);
info->txbuf = NULL;
}
@@ -295,7 +224,7 @@ ifx_ssc_err_int (int irq, void *dev_id)
unsigned long flags;
local_irq_save (flags);
- state = readl(IFXMIPS_SSC_STATE);
+ state = ifxmips_r32(IFXMIPS_SSC_STATE);
if ((state & IFX_SSC_STATE_RX_UFL) != 0) {
info->stats.rxUnErr++;
@@ -323,7 +252,7 @@ ifx_ssc_err_int (int irq, void *dev_id)
}
if (write_back)
- writel(write_back, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(write_back, IFXMIPS_SSC_WHBSTATE);
local_irq_restore (flags);
@@ -338,9 +267,9 @@ ifx_ssc_abort (struct ifx_ssc_port *info)
local_irq_save (flags);
- disable_irq(info->rxirq);
- disable_irq(info->txirq);
- disable_irq(info->errirq);
+ disable_irq(IFXMIPS_SSC_RIR);
+ disable_irq(IFXMIPS_SSC_TIR);
+ disable_irq(IFXMIPS_SSC_EIR);
local_irq_restore (flags);
@@ -349,12 +278,12 @@ ifx_ssc_abort (struct ifx_ssc_port *info)
// complete word. The disable cuts the transmission immediatly and
// releases the chip selects. This could result in unpredictable
// behavior of connected external devices!
- enabled = (readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED) != 0;
- writel(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED) != 0;
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
// flush fifos
- writel(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_TXFCON);
- writel(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_RXFCON);
+ ifxmips_w32(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_TXFCON);
+ ifxmips_w32(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_RXFCON);
// free txbuf
if (info->txbuf != NULL)
@@ -368,15 +297,15 @@ ifx_ssc_abort (struct ifx_ssc_port *info)
wake_up_interruptible (&info->rwait);
// clear pending int's
- mask_and_ack_ifxmips_irq(info->rxirq);
- mask_and_ack_ifxmips_irq(info->txirq);
- mask_and_ack_ifxmips_irq(info->errirq);
+ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_RIR);
+ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_TIR);
+ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_EIR);
// clear error flags
- writel(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE);
if (enabled)
- writel(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
}
@@ -396,7 +325,6 @@ ifx_ssc_open (struct inode *inode, struct file *filp)
line = (int) inode;
} else {
line = MINOR (filp->f_dentry->d_inode->i_rdev);
- filp->f_op = &ifx_ssc_fops;
}
/* don't open more minor devices than we can support */
@@ -410,27 +338,27 @@ ifx_ssc_open (struct inode *inode, struct file *filp)
return -EBUSY;
info->port_is_open++;
- disable_irq(info->rxirq);
- disable_irq(info->txirq);
- disable_irq(info->errirq);
+ disable_irq(IFXMIPS_SSC_RIR);
+ disable_irq(IFXMIPS_SSC_TIR);
+ disable_irq(IFXMIPS_SSC_EIR);
/* Flush and enable TX/RX FIFO */
- writel((IFX_SSC_DEF_TXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_FLUSH | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_TXFCON);
- writel((IFX_SSC_DEF_RXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_FLUSH | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_RXFCON);
+ ifxmips_w32((IFX_SSC_DEF_TXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_FLUSH | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_TXFCON);
+ ifxmips_w32((IFX_SSC_DEF_RXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_FLUSH | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_RXFCON);
/* logically flush the software FIFOs */
info->rxbuf_ptr = 0;
info->txbuf_ptr = 0;
/* clear all error bits */
- writel(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE);
// clear pending interrupts
- mask_and_ack_ifxmips_irq(info->rxirq);
- mask_and_ack_ifxmips_irq(info->txirq);
- mask_and_ack_ifxmips_irq(info->errirq);
+ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_RIR);
+ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_TIR);
+ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_EIR);
- writel(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
return 0;
}
@@ -454,7 +382,7 @@ ifx_ssc_close (struct inode *inode, struct file *filp)
if (!info)
return -ENXIO;
- writel(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
ifx_ssc_abort(info);
@@ -518,18 +446,18 @@ ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_
tx_int (info);
if (info->txbuf_ptr < info->txbuf_end)
- enable_irq(info->txirq);
+ enable_irq(IFXMIPS_SSC_TIR);
- enable_irq(info->rxirq);
+ enable_irq(IFXMIPS_SSC_RIR);
} else {
local_irq_restore(flags);
- if (readl(IFXMIPS_SSC_RXCNT) & IFX_SSC_RXCNT_TODO_MASK)
+ if (ifxmips_r32(IFXMIPS_SSC_RXCNT) & IFX_SSC_RXCNT_TODO_MASK)
return -EBUSY;
- enable_irq(info->rxirq);
+ enable_irq(IFXMIPS_SSC_RIR);
if (len < IFX_SSC_RXREQ_BLOCK_SIZE)
- writel(len << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
+ ifxmips_w32(len << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
else
- writel(IFX_SSC_RXREQ_BLOCK_SIZE << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
+ ifxmips_w32(IFX_SSC_RXREQ_BLOCK_SIZE << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
}
__add_wait_queue (&info->rwait, &wait);
@@ -574,7 +502,7 @@ ifx_ssc_write_helper (struct ifx_ssc_port *info, const char *buf,
tx_int (info);
if (info->txbuf_ptr < info->txbuf_end)
{
- enable_irq(info->txirq);
+ enable_irq(IFXMIPS_SSC_TIR);
}
}
@@ -611,7 +539,7 @@ ifx_ssc_kread (int port, char *kbuf, size_t len)
ret_val = ifx_ssc_read_helper_poll (info, kbuf, len, 1);
info->rxbuf = NULL;
- disable_irq(info->rxirq);
+ disable_irq(IFXMIPS_SSC_RIR);
return ret_val;
}
@@ -667,7 +595,7 @@ ifx_ssc_read (struct file *filp, char *ubuf, size_t len, loff_t * off)
if (copy_to_user ((void *) ubuf, info->rxbuf, ret_val) != 0)
ret_val = -EFAULT;
- disable_irq(info->rxirq);
+ disable_irq(IFXMIPS_SSC_RIR);
kfree (info->rxbuf);
info->rxbuf = NULL;
@@ -715,12 +643,12 @@ ifx_ssc_frm_status_get (struct ifx_ssc_port *info)
{
unsigned long tmp;
- tmp = readl(IFXMIPS_SSC_SFSTAT);
+ tmp = ifxmips_r32(IFXMIPS_SSC_SFSTAT);
info->frm_status.DataBusy = (tmp & IFX_SSC_SFSTAT_IN_DATA) > 0;
info->frm_status.PauseBusy = (tmp & IFX_SSC_SFSTAT_IN_PAUSE) > 0;
info->frm_status.DataCount = (tmp & IFX_SSC_SFSTAT_DATA_COUNT_MASK) >> IFX_SSC_SFSTAT_DATA_COUNT_OFFSET;
info->frm_status.PauseCount = (tmp & IFX_SSC_SFSTAT_PAUSE_COUNT_MASK) >> IFX_SSC_SFSTAT_PAUSE_COUNT_OFFSET;
- tmp = readl(IFXMIPS_SSC_SFCON);
+ tmp = ifxmips_r32(IFXMIPS_SSC_SFCON);
info->frm_status.EnIntAfterData = (tmp & IFX_SSC_SFCON_FIR_ENABLE_BEFORE_PAUSE) > 0;
info->frm_status.EnIntAfterPause = (tmp & IFX_SSC_SFCON_FIR_ENABLE_AFTER_PAUSE) > 0;
@@ -733,7 +661,7 @@ ifx_ssc_frm_control_get (struct ifx_ssc_port *info)
{
unsigned long tmp;
- tmp = readl(IFXMIPS_SSC_SFCON);
+ tmp = ifxmips_r32(IFXMIPS_SSC_SFCON);
info->frm_opts.FrameEnable = (tmp & IFX_SSC_SFCON_SF_ENABLE) > 0;
info->frm_opts.DataLength = (tmp & IFX_SSC_SFCON_DATA_LENGTH_MASK) >> IFX_SSC_SFCON_DATA_LENGTH_OFFSET;
info->frm_opts.PauseLength = (tmp & IFX_SSC_SFCON_PAUSE_LENGTH_MASK) >> IFX_SSC_SFCON_PAUSE_LENGTH_OFFSET;
@@ -749,7 +677,6 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info)
{
unsigned long tmp;
- // check parameters
if ((info->frm_opts.DataLength > IFX_SSC_SFCON_DATA_LENGTH_MAX)
|| (info->frm_opts.DataLength < 1)
|| (info->frm_opts.PauseLength > IFX_SSC_SFCON_PAUSE_LENGTH_MAX)
@@ -759,7 +686,7 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info)
return -EINVAL;
// read interrupt bits (they're not changed here)
- tmp = readl(IFXMIPS_SSC_SFCON) &
+ tmp = ifxmips_r32(IFXMIPS_SSC_SFCON) &
(IFX_SSC_SFCON_FIR_ENABLE_BEFORE_PAUSE | IFX_SSC_SFCON_FIR_ENABLE_AFTER_PAUSE);
// set all values with respect to it's bit position (for data and pause
@@ -771,7 +698,7 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info)
tmp |= info->frm_opts.FrameEnable * IFX_SSC_SFCON_SF_ENABLE;
tmp |= info->frm_opts.StopAfterPause * IFX_SSC_SFCON_STOP_AFTER_PAUSE;
- writel(tmp, IFXMIPS_SSC_SFCON);
+ ifxmips_w32(tmp, IFXMIPS_SSC_SFCON);
return 0;
}
@@ -784,12 +711,12 @@ ifx_ssc_rxtx_mode_set (struct ifx_ssc_port *info, unsigned int val)
if (!(info) || (val & ~(IFX_SSC_MODE_MASK)))
return -EINVAL;
- if ((readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)
- || (readl(IFXMIPS_SSC_RXCNT) & IFX_SSC_RXCNT_TODO_MASK))
+ if ((ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)
+ || (ifxmips_r32(IFXMIPS_SSC_RXCNT) & IFX_SSC_RXCNT_TODO_MASK))
return -EBUSY;
- tmp = (readl(IFXMIPS_SSC_CON) & ~(IFX_SSC_CON_RX_OFF | IFX_SSC_CON_TX_OFF)) | (val);
- writel(tmp, IFXMIPS_SSC_SFCON);
+ tmp = (ifxmips_r32(IFXMIPS_SSC_CON) & ~(IFX_SSC_CON_RX_OFF | IFX_SSC_CON_TX_OFF)) | (val);
+ ifxmips_w32(tmp, IFXMIPS_SSC_SFCON);
info->opts.modeRxTx = val;
return 0;
@@ -839,20 +766,20 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info)
local_irq_save (flags);
- writel(bits, IFXMIPS_SSC_CON);
- writel((info->opts.gpoCs << IFX_SSC_GPOCON_ISCSB0_POS) |
+ ifxmips_w32(bits, IFXMIPS_SSC_CON);
+ ifxmips_w32((info->opts.gpoCs << IFX_SSC_GPOCON_ISCSB0_POS) |
(info->opts.gpoInv << IFX_SSC_GPOCON_INVOUT0_POS), IFXMIPS_SSC_GPOCON);
- writel(info->opts.gpoCs << IFX_SSC_WHBGPOSTAT_SETOUT0_POS, IFXMIPS_SSC_WHBGPOSTAT);
+ ifxmips_w32(info->opts.gpoCs << IFX_SSC_WHBGPOSTAT_SETOUT0_POS, IFXMIPS_SSC_WHBGPOSTAT);
//master mode
if (opts->masterSelect)
- writel(IFX_SSC_WHBSTATE_SET_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_SET_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE);
else
- writel(IFX_SSC_WHBSTATE_CLR_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE);
// init serial framing
- writel(0, IFXMIPS_SSC_SFCON);
+ ifxmips_w32(0, IFXMIPS_SSC_SFCON);
/* set up the port pins */
//check for general requirements to switch (external) pad/pin characteristics
/* TODO: P0.9 SPI_CS4, P0.10 SPI_CS5, P 0.11 SPI_CS6, because of ASC0 */
@@ -896,23 +823,23 @@ ifx_ssc_set_baud (struct ifx_ssc_port *info, unsigned int baud)
local_irq_save (flags);
- enabled = (readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED);
- writel(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
br = (((ifx_ssc_clock >> 1) + baud / 2) / baud) - 1;
wmb();
if (br > 0xffff || ((br == 0) &&
- ((readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_MASTER) == 0))) {
+ ((ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_MASTER) == 0))) {
local_irq_restore (flags);
printk ("%s: invalid baudrate %u\n", __func__, baud);
return -EINVAL;
}
- writel(br, IFXMIPS_SSC_BR);
+ ifxmips_w32(br, IFXMIPS_SSC_BR);
if (enabled)
- writel(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
local_irq_restore(flags);
@@ -926,8 +853,8 @@ ifx_ssc_hwinit (struct ifx_ssc_port *info)
unsigned long flags;
bool enabled;
- enabled = (readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED);
- writel(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
if (ifx_ssc_sethwopts (info) < 0)
{
@@ -944,14 +871,14 @@ ifx_ssc_hwinit (struct ifx_ssc_port *info)
local_irq_save (flags);
/* TX FIFO */
- writel((IFX_SSC_DEF_TXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_TXFCON);
+ ifxmips_w32((IFX_SSC_DEF_TXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_TXFCON);
/* RX FIFO */
- writel((IFX_SSC_DEF_RXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_RXFCON);
+ ifxmips_w32((IFX_SSC_DEF_RXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_RXFCON);
local_irq_restore (flags);
if (enabled)
- writel(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ ifxmips_w32(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE);
return 0;
}
@@ -999,7 +926,7 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
/* if the buffers are not empty then the port is */
/* busy and we shouldn't change things on-the-fly! */
if (!info->txbuf || !info->rxbuf ||
- (readl(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)) {
+ (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)) {
ret_val = -EBUSY;
break;
}
@@ -1040,7 +967,7 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
ret_val = ifx_ssc_rxtx_mode_set (info, tmp);
break;
case IFX_SSC_RXTX_MODE_GET:
- tmp = readl(IFXMIPS_SSC_CON) &
+ tmp = ifxmips_r32(IFXMIPS_SSC_CON) &
(~(IFX_SSC_CON_RX_OFF | IFX_SSC_CON_TX_OFF));
if (from_kernel)
*((unsigned int *) data) = tmp;
@@ -1064,7 +991,7 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
if (tmp > IFX_SSC_MAX_GPO_OUT)
ret_val = -EINVAL;
else
- writel(1 << (tmp + IFX_SSC_WHBGPOSTAT_SETOUT0_POS),
+ ifxmips_w32(1 << (tmp + IFX_SSC_WHBGPOSTAT_SETOUT0_POS),
IFXMIPS_SSC_WHBGPOSTAT);
break;
case IFX_SSC_GPO_OUT_CLR:
@@ -1077,12 +1004,12 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
if (tmp > IFX_SSC_MAX_GPO_OUT)
ret_val = -EINVAL;
else {
- writel(1 << (tmp + IFX_SSC_WHBGPOSTAT_CLROUT0_POS),
+ ifxmips_w32(1 << (tmp + IFX_SSC_WHBGPOSTAT_CLROUT0_POS),
IFXMIPS_SSC_WHBGPOSTAT);
}
break;
case IFX_SSC_GPO_OUT_GET:
- tmp = readl(IFXMIPS_SSC_GPOSTAT);
+ tmp = ifxmips_r32(IFXMIPS_SSC_GPOSTAT);
if (from_kernel)
*((unsigned int *) data) = tmp;
else if (copy_to_user ((void *) data,
@@ -1126,7 +1053,7 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
/* if the buffers are not empty then the port is */
/* busy and we shouldn't change things on-the-fly! */
if (!info->txbuf || !info->rxbuf ||
- (readl(IFXMIPS_SSC_STATE)
+ (ifxmips_r32(IFXMIPS_SSC_STATE)
& IFX_SSC_STATE_BUSY)) {
ret_val = -EBUSY;
break;
@@ -1161,6 +1088,15 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
}
EXPORT_SYMBOL(ifx_ssc_ioctl);
+static struct file_operations ifx_ssc_fops = {
+ .owner = THIS_MODULE,
+ .read = ifx_ssc_read,
+ .write = ifx_ssc_write,
+ .ioctl = ifx_ssc_ioctl,
+ .open = ifx_ssc_open,
+ .release = ifx_ssc_close,
+};
+
int __init
ifx_ssc_init (void)
{
@@ -1227,48 +1163,45 @@ ifx_ssc_init (void)
/* values specific to SSC1 */
if (i == 0) {
info->mapbase = IFXMIPS_SSC_BASE_ADDR;
- info->txirq = IFXMIPS_SSC_TIR;
- info->rxirq = IFXMIPS_SSC_RIR;
- info->errirq = IFXMIPS_SSC_EIR;
}
- writel(IFX_SSC_DEF_RMC << IFX_CLC_RUN_DIVIDER_OFFSET, IFXMIPS_SSC_CLC);
+ ifxmips_w32(IFX_SSC_DEF_RMC << IFX_CLC_RUN_DIVIDER_OFFSET, IFXMIPS_SSC_CLC);
init_waitqueue_head (&info->rwait);
local_irq_save (flags);
// init serial framing register
- writel(IFX_SSC_DEF_SFCON, IFXMIPS_SSC_SFCON);
+ ifxmips_w32(IFX_SSC_DEF_SFCON, IFXMIPS_SSC_SFCON);
- ret_val = request_irq(info->txirq, ifx_ssc_tx_int, SA_INTERRUPT, "ifx_ssc_tx", info);
+ ret_val = request_irq(IFXMIPS_SSC_TIR, ifx_ssc_tx_int, IRQF_DISABLED, "ifx_ssc_tx", info);
if (ret_val)
{
- printk("%s: unable to get irq %d\n", __func__, info->txirq);
+ printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_TIR);
local_irq_restore(flags);
goto errout;
}
- ret_val = request_irq(info->rxirq, ifx_ssc_rx_int, SA_INTERRUPT, "ifx_ssc_rx", info);
+ ret_val = request_irq(IFXMIPS_SSC_RIR, ifx_ssc_rx_int, IRQF_DISABLED, "ifx_ssc_rx", info);
if (ret_val)
{
- printk ("%s: unable to get irq %d\n", __func__, info->rxirq);
+ printk ("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_RIR);
local_irq_restore (flags);
goto irqerr;
}
- ret_val = request_irq(info->errirq, ifx_ssc_err_int, SA_INTERRUPT,"ifx_ssc_err", info);
+ ret_val = request_irq(IFXMIPS_SSC_EIR, ifx_ssc_err_int, IRQF_DISABLED, "ifx_ssc_err", info);
if (ret_val)
{
- printk ("%s: unable to get irq %d\n", __func__, info->errirq);
+ printk ("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_EIR);
local_irq_restore (flags);
goto irqerr;
}
- writel(IFX_SSC_DEF_IRNEN, IFXMIPS_SSC_IRN);
+ ifxmips_w32(IFX_SSC_DEF_IRNEN, IFXMIPS_SSC_IRN);
- enable_irq(info->txirq);
- enable_irq(info->rxirq);
- enable_irq(info->errirq);
+ //enable_irq(IFXMIPS_SSC_TIR);
+ //enable_irq(IFXMIPS_SSC_RIR);
+ //enable_irq(IFXMIPS_SSC_EIR);
local_irq_restore (flags);
}
@@ -1286,9 +1219,9 @@ ifx_ssc_init (void)
return 0;
irqerr:
- free_irq(isp[0].txirq, &isp[0]);
- free_irq(isp[0].rxirq, &isp[0]);
- free_irq(isp[0].errirq, &isp[0]);
+ free_irq(IFXMIPS_SSC_TIR, &isp[0]);
+ free_irq(IFXMIPS_SSC_RIR, &isp[0]);
+ free_irq(IFXMIPS_SSC_EIR, &isp[0]);
errout:
kfree (isp);
return (ret_val);
@@ -1300,10 +1233,10 @@ ifx_ssc_cleanup_module (void)
int i;
for (i = 0; i < PORT_CNT; i++) {
- writel(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
- free_irq(isp[i].txirq, &isp[i]);
- free_irq(isp[i].rxirq, &isp[i]);
- free_irq(isp[i].errirq, &isp[i]);
+ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
+ free_irq(IFXMIPS_SSC_TIR, &isp[i]);
+ free_irq(IFXMIPS_SSC_RIR, &isp[i]);
+ free_irq(IFXMIPS_SSC_EIR, &isp[i]);
}
kfree (isp);
}