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| author | Benoît Thébaudeau <benoit.thebaudeau@advansee.com> | 2012-07-19 22:16:38 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2012-09-01 16:21:50 +0200 |
| commit | cdeb916120a43c1bfe3de1a6d84ea403d43e59d5 (patch) | |
| tree | f2f59042fdfa1ed679374eb29a8de89dd7764e6d /drivers | |
| parent | 27e301e5b7df6254c768d27130d3a36c31d55c96 (diff) | |
| download | u-boot-imx-cdeb916120a43c1bfe3de1a6d84ea403d43e59d5.zip u-boot-imx-cdeb916120a43c1bfe3de1a6d84ea403d43e59d5.tar.gz u-boot-imx-cdeb916120a43c1bfe3de1a6d84ea403d43e59d5.tar.bz2 | |
ehci: cosmetic: Define the number of qt_buffers
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 4 | ||||
| -rw-r--r-- | drivers/usb/host/ehci.h | 11 |
2 files changed, 8 insertions, 7 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 2a82a29..5b3b906 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -183,7 +183,7 @@ static int ehci_td_buffer(struct qTD *td, void *buf, size_t sz) flush_dcache_range(addr, ALIGN(addr + sz, ARCH_DMA_MINALIGN)); idx = 0; - while (idx < 5) { + while (idx < QT_BUFFER_CNT) { td->qt_buffer[idx] = cpu_to_hc32(addr); td->qt_buffer_hi[idx] = 0; next = (addr + 4096) & ~4095; @@ -195,7 +195,7 @@ static int ehci_td_buffer(struct qTD *td, void *buf, size_t sz) idx++; } - if (idx == 5) { + if (idx == QT_BUFFER_CNT) { printf("out of buffer pointers (%u bytes left)\n", sz); return -1; } diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index cc00ce4..7992983 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -171,12 +171,13 @@ struct usb_linux_config_descriptor { /* Queue Element Transfer Descriptor (qTD). */ struct qTD { /* this part defined by EHCI spec */ - uint32_t qt_next; /* see EHCI 3.5.1 */ + uint32_t qt_next; /* see EHCI 3.5.1 */ #define QT_NEXT_TERMINATE 1 - uint32_t qt_altnext; /* see EHCI 3.5.2 */ - uint32_t qt_token; /* see EHCI 3.5.3 */ - uint32_t qt_buffer[5]; /* see EHCI 3.5.4 */ - uint32_t qt_buffer_hi[5]; /* Appendix B */ + uint32_t qt_altnext; /* see EHCI 3.5.2 */ + uint32_t qt_token; /* see EHCI 3.5.3 */ +#define QT_BUFFER_CNT 5 + uint32_t qt_buffer[QT_BUFFER_CNT]; /* see EHCI 3.5.4 */ + uint32_t qt_buffer_hi[QT_BUFFER_CNT]; /* Appendix B */ /* pad struct for 32 byte alignment */ uint32_t unused[3]; }; |