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staging: octeon-usb: assume union type for FIELD32 macros

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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>
This commit is contained in:
Aaro Koskinen 2015-03-28 21:24:33 +02:00 committed by Greg Kroah-Hartman
parent 9a02e8d211
commit 6068e81879
1 changed files with 36 additions and 43 deletions
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79
drivers/staging/octeon-usb/octeon-hcd.c
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@ -394,12 +394,13 @@ struct octeon_hcd {
};
/* 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 @@ struct octeon_hcd {
* 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 @@ static void cvmx_fifo_setup(struct cvmx_usb_state *usb)
* 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 @@ static void cvmx_fifo_setup(struct cvmx_usb_state *usb)
/* 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 @@ retry:
* 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 @@ static void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
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 @@ static void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
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 void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
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 @@ static void cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
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 @@ static void cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
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 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
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 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
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 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
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 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
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 @@ static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
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 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
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 @@ static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
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 @@ done:
}
}
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 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
*/
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: