staging: octeon-usb: assume union type for FIELD32 macros
Assume union type for FIELD32 macros to simplify usage.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 7312597..3e89265 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -394,12 +394,13 @@
};
/* This macro spins on a field waiting for it to reach a value */
-#define CVMX_WAIT_FOR_FIELD32(address, type, field, op, value, timeout_usec)\
+#define CVMX_WAIT_FOR_FIELD32(address, _union, field, op, value, timeout_usec)\
({int result; \
do { \
uint64_t done = cvmx_get_cycle() + (uint64_t)timeout_usec * \
octeon_get_clock_rate() / 1000000; \
- type c; \
+ union _union c; \
+ \
while (1) { \
c.u32 = cvmx_usb_read_csr32(usb, address); \
if (c.s.field op (value)) { \
@@ -418,9 +419,10 @@
* This macro logically sets a single field in a CSR. It does the sequence
* read, modify, and write
*/
-#define USB_SET_FIELD32(address, type, field, value) \
+#define USB_SET_FIELD32(address, _union, field, value) \
do { \
- type c; \
+ union _union c; \
+ \
c.u32 = cvmx_usb_read_csr32(usb, address); \
c.s.field = value; \
cvmx_usb_write_csr32(usb, address, c.u32); \
@@ -621,9 +623,8 @@
* Program the USBC_GRXFSIZ register to select the size of the receive
* FIFO (25%).
*/
- USB_SET_FIELD32(CVMX_USBCX_GRXFSIZ(usb->index),
- union cvmx_usbcx_grxfsiz, rxfdep,
- usbcx_ghwcfg3.s.dfifodepth / 4);
+ USB_SET_FIELD32(CVMX_USBCX_GRXFSIZ(usb->index), cvmx_usbcx_grxfsiz,
+ rxfdep, usbcx_ghwcfg3.s.dfifodepth / 4);
/*
* Program the USBC_GNPTXFSIZ register to select the size and the start
@@ -647,17 +648,15 @@
/* Flush all FIFOs */
USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
- union cvmx_usbcx_grstctl, txfnum, 0x10);
+ cvmx_usbcx_grstctl, txfnum, 0x10);
USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
- union cvmx_usbcx_grstctl, txfflsh, 1);
+ cvmx_usbcx_grstctl, txfflsh, 1);
CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
- union cvmx_usbcx_grstctl,
- txfflsh, ==, 0, 100);
+ cvmx_usbcx_grstctl, txfflsh, ==, 0, 100);
USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
- union cvmx_usbcx_grstctl, rxfflsh, 1);
+ cvmx_usbcx_grstctl, rxfflsh, 1);
CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
- union cvmx_usbcx_grstctl,
- rxfflsh, ==, 0, 100);
+ cvmx_usbcx_grstctl, rxfflsh, ==, 0, 100);
}
/**
@@ -926,9 +925,9 @@
* USBC_GINTMSK[PRTINT] = 1
*/
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk, prtintmsk, 1);
+ cvmx_usbcx_gintmsk, prtintmsk, 1);
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk, disconnintmsk, 1);
+ cvmx_usbcx_gintmsk, disconnintmsk, 1);
/*
* 2. Program the USBC_HCFG register to select full-speed host
@@ -975,7 +974,7 @@
CVMX_USBCX_HPRT(usb->index));
/* Program the port reset bit to start the reset process */
- USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+ USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
prtrst, 1);
/*
@@ -985,7 +984,7 @@
mdelay(50);
/* Program the port reset bit to 0, USBC_HPRT[PRTRST] = 0 */
- USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+ USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
prtrst, 0);
/*
@@ -1010,7 +1009,7 @@
static int cvmx_usb_disable(struct cvmx_usb_state *usb)
{
/* Disable the port */
- USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+ USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
prtena, 1);
return 0;
}
@@ -1285,12 +1284,10 @@
if (cvmx_usb_fill_tx_hw(usb, &usb->periodic,
tx_status.s.ptxfspcavail))
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk,
- ptxfempmsk, 1);
+ cvmx_usbcx_gintmsk, ptxfempmsk, 1);
else
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk,
- ptxfempmsk, 0);
+ cvmx_usbcx_gintmsk, ptxfempmsk, 0);
}
if (usb->nonperiodic.head != usb->nonperiodic.tail) {
@@ -1301,12 +1298,10 @@
if (cvmx_usb_fill_tx_hw(usb, &usb->nonperiodic,
tx_status.s.nptxfspcavail))
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk,
- nptxfempmsk, 1);
+ cvmx_usbcx_gintmsk, nptxfempmsk, 1);
else
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk,
- nptxfempmsk, 0);
+ cvmx_usbcx_gintmsk, nptxfempmsk, 0);
}
}
@@ -1401,7 +1396,7 @@
bytes_to_transfer = sizeof(*header);
/* All Control operations start with a setup going OUT */
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, epdir,
+ cvmx_usbcx_hccharx, epdir,
CVMX_USB_DIRECTION_OUT);
/*
* Setup send the control header instead of the buffer data. The
@@ -1416,11 +1411,11 @@
bytes_to_transfer = 0;
/* All Control operations start with a setup going OUT */
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, epdir,
+ cvmx_usbcx_hccharx, epdir,
CVMX_USB_DIRECTION_OUT);
USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index),
- union cvmx_usbcx_hcspltx, compsplt, 1);
+ cvmx_usbcx_hcspltx, compsplt, 1);
break;
case CVMX_USB_STAGE_DATA:
usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
@@ -1431,7 +1426,7 @@
bytes_to_transfer = pipe->max_packet;
}
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, epdir,
+ cvmx_usbcx_hccharx, epdir,
((header->bRequestType & USB_DIR_IN) ?
CVMX_USB_DIRECTION_IN :
CVMX_USB_DIRECTION_OUT));
@@ -1441,18 +1436,18 @@
if (!(header->bRequestType & USB_DIR_IN))
bytes_to_transfer = 0;
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, epdir,
+ cvmx_usbcx_hccharx, epdir,
((header->bRequestType & USB_DIR_IN) ?
CVMX_USB_DIRECTION_IN :
CVMX_USB_DIRECTION_OUT));
USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index),
- union cvmx_usbcx_hcspltx, compsplt, 1);
+ cvmx_usbcx_hcspltx, compsplt, 1);
break;
case CVMX_USB_STAGE_STATUS:
usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
bytes_to_transfer = 0;
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, epdir,
+ cvmx_usbcx_hccharx, epdir,
((header->bRequestType & USB_DIR_IN) ?
CVMX_USB_DIRECTION_OUT :
CVMX_USB_DIRECTION_IN));
@@ -1461,12 +1456,12 @@
usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
bytes_to_transfer = 0;
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, epdir,
+ cvmx_usbcx_hccharx, epdir,
((header->bRequestType & USB_DIR_IN) ?
CVMX_USB_DIRECTION_OUT :
CVMX_USB_DIRECTION_IN));
USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index),
- union cvmx_usbcx_hcspltx, compsplt, 1);
+ cvmx_usbcx_hcspltx, compsplt, 1);
break;
}
@@ -1830,14 +1825,12 @@
USB_SET_FIELD32(
CVMX_USBCX_HCTSIZX(channel,
usb->index),
- union cvmx_usbcx_hctsizx,
- pid, 0);
+ cvmx_usbcx_hctsizx, pid, 0);
else /* Need MDATA */
USB_SET_FIELD32(
CVMX_USBCX_HCTSIZX(channel,
usb->index),
- union cvmx_usbcx_hctsizx,
- pid, 3);
+ cvmx_usbcx_hctsizx, pid, 3);
}
}
break;
@@ -1853,7 +1846,7 @@
if (cvmx_usb_pipe_needs_split(usb, pipe))
usb->active_split = transaction;
USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
- union cvmx_usbcx_hccharx, chena, 1);
+ cvmx_usbcx_hccharx, chena, 1);
if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
cvmx_usb_fill_tx_fifo(usb, channel);
}
@@ -1983,7 +1976,7 @@
}
}
USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
- union cvmx_usbcx_gintmsk, sofmsk, need_sof);
+ cvmx_usbcx_gintmsk, sofmsk, need_sof);
}
static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
@@ -3527,7 +3520,7 @@
*/
spin_lock_irqsave(&priv->lock, flags);
USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index),
- union cvmx_usbcx_hprt, prtpwr, 1);
+ cvmx_usbcx_hprt, prtpwr, 1);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
case USB_PORT_FEAT_RESET:
