From: Jules Maselbas <jmaselbas@kalray.eu>
To: Barebox List <barebox@lists.infradead.org>
Cc: Jules Maselbas <jmaselbas@kalray.eu>
Subject: [RFC PATCH 7/9] usb: dwc2: Add getter for gadget fifo hwparams
Date: Wed, 22 Jan 2020 16:49:48 +0100 [thread overview]
Message-ID: <20200122154950.22746-8-jmaselbas@kalray.eu> (raw)
In-Reply-To: <20200122154950.22746-1-jmaselbas@kalray.eu>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
---
drivers/usb/dwc2/core.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index 90e7c0116..5376a3586 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -167,6 +167,33 @@ int dwc2_core_snpsid(struct dwc2 *dwc2)
return 0;
}
+static int dwc2_num_dev_tx_fifo(struct dwc2 *dwc2)
+{
+ if (dwc2->hw_params.en_multiple_tx_fifo)
+ /* In dedicated FIFO mode we need count of IN EPs */
+ return dwc2->hw_params.num_dev_in_eps;
+ else
+ /* In shared FIFO mode we need count of Periodic IN EPs */
+ return dwc2->hw_params.num_dev_perio_in_ep;
+}
+
+static void dwc2_get_dev_hwparams(struct dwc2 *dwc2)
+{
+ struct dwc2_hw_params *hw = &dwc2->hw_params;
+ u32 size;
+ int num, i;
+
+ size = FIFOSIZE_DEPTH_GET(dwc2_readl(dwc2, GNPTXFSIZ));
+ hw->dev_nperio_tx_fifo_size = size;
+
+ num = dwc2_num_dev_tx_fifo(dwc2);
+
+ for (i = 1; i <= num; i++) {
+ size = FIFOSIZE_DEPTH_GET(dwc2_readl(dwc2, DPTXFSIZN(i)));
+ hw->g_tx_fifo_size[i] = size;
+ }
+}
+
/**
* During device initialization, read various hardware configuration
* registers and interpret the contents.
@@ -243,6 +270,8 @@ void dwc2_get_hwparams(struct dwc2 *dwc2)
/* fifo sizes */
hw->rx_fifo_size = (grxfsiz & GRXFSIZ_DEPTH_MASK) >>
GRXFSIZ_DEPTH_SHIFT;
+
+ dwc2_get_dev_hwparams(dwc2);
}
/*
--
2.21.0.196.g041f5ea
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next prev parent reply other threads:[~2020-01-22 15:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-22 15:49 [RFC PATCH 0/9] usb: Add dwc2 gadget driver Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 1/9] BACKPORT: usb: Add helper to extract bits 12:11 of wMaxPacketize Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 2/9] BACKPORT: usb: ch9: make usb_endpoint_maxp() return only packet size Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 3/9] usb: Update uses of usb_endpoint_maxp Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 4/9] usb: dwc2: Add otg state Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 5/9] usb: dwc2: Add function to flush a tx fifo Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 6/9] usb: dwc2: Add structure for gadget driver Jules Maselbas
2020-01-22 15:49 ` Jules Maselbas [this message]
2020-01-22 15:49 ` [RFC PATCH 8/9] usb: dwc2: gadget: Configure fifo size Jules Maselbas
2020-01-22 15:49 ` [RFC PATCH 9/9] usb: dwc2: Add gadget driver Jules Maselbas
2020-01-27 13:40 ` Sascha Hauer
2020-01-27 17:18 ` Jules Maselbas
2020-01-28 8:18 ` Sascha Hauer
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