On Mon, Dec 19, 2016 at 04:23:47PM +0100, Pali Rohár wrote:
> Based on the musb ug, force_host bit is allowed to be set along with
> force_hs or force_fs bit.
>
> It could help to implement forced host mode via testmode on Nokia N900.
>
> Signed-off-by: Pali Rohár <pali.ro...@gmail.com>
Applied. Thanks.
-Bin.
> ---
> Changes in v2:
> * Use == instead of & for comparison of testmode
> Changes in v3:
> * Increase buf[] to 24 bytes
> ---
> drivers/usb/musb/musb_debugfs.c | 46
> ++++++++++++++++++++++++---------------
> 1 file changed, 29 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
> index 9b22d94..4d6c505 100644
> --- a/drivers/usb/musb/musb_debugfs.c
> +++ b/drivers/usb/musb/musb_debugfs.c
> @@ -147,28 +147,34 @@ static int musb_test_mode_show(struct seq_file *s, void
> *unused)
>
> test = musb_readb(musb->mregs, MUSB_TESTMODE);
>
> - if (test & MUSB_TEST_FORCE_HOST)
> + if (test == (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS))
> + seq_printf(s, "force host full-speed\n");
> +
> + else if (test == (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS))
> + seq_printf(s, "force host high-speed\n");
> +
> + else if (test == MUSB_TEST_FORCE_HOST)
> seq_printf(s, "force host\n");
>
> - if (test & MUSB_TEST_FIFO_ACCESS)
> + else if (test == MUSB_TEST_FIFO_ACCESS)
> seq_printf(s, "fifo access\n");
>
> - if (test & MUSB_TEST_FORCE_FS)
> + else if (test == MUSB_TEST_FORCE_FS)
> seq_printf(s, "force full-speed\n");
>
> - if (test & MUSB_TEST_FORCE_HS)
> + else if (test == MUSB_TEST_FORCE_HS)
> seq_printf(s, "force high-speed\n");
>
> - if (test & MUSB_TEST_PACKET)
> + else if (test == MUSB_TEST_PACKET)
> seq_printf(s, "test packet\n");
>
> - if (test & MUSB_TEST_K)
> + else if (test == MUSB_TEST_K)
> seq_printf(s, "test K\n");
>
> - if (test & MUSB_TEST_J)
> + else if (test == MUSB_TEST_J)
> seq_printf(s, "test J\n");
>
> - if (test & MUSB_TEST_SE0_NAK)
> + else if (test == MUSB_TEST_SE0_NAK)
> seq_printf(s, "test SE0 NAK\n");
>
> return 0;
> @@ -192,7 +198,7 @@ static ssize_t musb_test_mode_write(struct file *file,
> struct seq_file *s = file->private_data;
> struct musb *musb = s->private;
> u8 test;
> - char buf[18];
> + char buf[24];
>
> test = musb_readb(musb->mregs, MUSB_TESTMODE);
> if (test) {
> @@ -206,30 +212,36 @@ static ssize_t musb_test_mode_write(struct file *file,
> if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
> return -EFAULT;
>
> - if (strstarts(buf, "force host"))
> + if (strstarts(buf, "force host full-speed"))
> + test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS;
> +
> + else if (strstarts(buf, "force host high-speed"))
> + test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS;
> +
> + else if (strstarts(buf, "force host"))
> test = MUSB_TEST_FORCE_HOST;
>
> - if (strstarts(buf, "fifo access"))
> + else if (strstarts(buf, "fifo access"))
> test = MUSB_TEST_FIFO_ACCESS;
>
> - if (strstarts(buf, "force full-speed"))
> + else if (strstarts(buf, "force full-speed"))
> test = MUSB_TEST_FORCE_FS;
>
> - if (strstarts(buf, "force high-speed"))
> + else if (strstarts(buf, "force high-speed"))
> test = MUSB_TEST_FORCE_HS;
>
> - if (strstarts(buf, "test packet")) {
> + else if (strstarts(buf, "test packet")) {
> test = MUSB_TEST_PACKET;
> musb_load_testpacket(musb);
> }
>
> - if (strstarts(buf, "test K"))
> + else if (strstarts(buf, "test K"))
> test = MUSB_TEST_K;
>
> - if (strstarts(buf, "test J"))
> + else if (strstarts(buf, "test J"))
> test = MUSB_TEST_J;
>
> - if (strstarts(buf, "test SE0 NAK"))
> + else if (strstarts(buf, "test SE0 NAK"))
> test = MUSB_TEST_SE0_NAK;
>
> musb_writeb(musb->mregs, MUSB_TESTMODE, test);
> --
> 1.7.9.5
>
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