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author | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
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committer | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
commit | 1d2a1959fe534279cf37aba20b08c24c20840e52 (patch) | |
tree | 67c0b9aa7fe22a44bf0b4af88947799203eb8f67 /drivers/staging/solo6x10/core.c | |
parent | 5a79ce76e9bb8f4b2cd8106ee36d15ee05013bcf (diff) | |
parent | 054cfaacf88865bff1dd58d305443d5d6c068a08 (diff) | |
download | linux-1d2a1959fe534279cf37aba20b08c24c20840e52.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Diffstat (limited to 'drivers/staging/solo6x10/core.c')
-rw-r--r-- | drivers/staging/solo6x10/core.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/drivers/staging/solo6x10/core.c b/drivers/staging/solo6x10/core.c new file mode 100644 index 0000000..7677994 --- /dev/null +++ b/drivers/staging/solo6x10/core.c @@ -0,0 +1,331 @@ +/* + * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com + * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/videodev2.h> +#include "solo6x10.h" +#include "tw28.h" + +MODULE_DESCRIPTION("Softlogic 6x10 MP4/H.264 Encoder/Decoder V4L2/ALSA Driver"); +MODULE_AUTHOR("Ben Collins <bcollins@bluecherry.net>"); +MODULE_VERSION(SOLO6X10_VERSION); +MODULE_LICENSE("GPL"); + +void solo_irq_on(struct solo_dev *solo_dev, u32 mask) +{ + solo_dev->irq_mask |= mask; + solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask); +} + +void solo_irq_off(struct solo_dev *solo_dev, u32 mask) +{ + solo_dev->irq_mask &= ~mask; + solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask); +} + +/* XXX We should check the return value of the sub-device ISR's */ +static irqreturn_t solo_isr(int irq, void *data) +{ + struct solo_dev *solo_dev = data; + u32 status; + int i; + + status = solo_reg_read(solo_dev, SOLO_IRQ_STAT); + if (!status) + return IRQ_NONE; + + if (status & ~solo_dev->irq_mask) { + solo_reg_write(solo_dev, SOLO_IRQ_STAT, + status & ~solo_dev->irq_mask); + status &= solo_dev->irq_mask; + } + + if (status & SOLO_IRQ_PCI_ERR) { + u32 err = solo_reg_read(solo_dev, SOLO_PCI_ERR); + solo_p2m_error_isr(solo_dev, err); + solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_PCI_ERR); + } + + for (i = 0; i < SOLO_NR_P2M; i++) + if (status & SOLO_IRQ_P2M(i)) + solo_p2m_isr(solo_dev, i); + + if (status & SOLO_IRQ_IIC) + solo_i2c_isr(solo_dev); + + if (status & SOLO_IRQ_VIDEO_IN) + solo_video_in_isr(solo_dev); + + /* Call this first so enc gets detected flag set */ + if (status & SOLO_IRQ_MOTION) + solo_motion_isr(solo_dev); + + if (status & SOLO_IRQ_ENCODER) + solo_enc_v4l2_isr(solo_dev); + + if (status & SOLO_IRQ_G723) + solo_g723_isr(solo_dev); + + return IRQ_HANDLED; +} + +static void free_solo_dev(struct solo_dev *solo_dev) +{ + struct pci_dev *pdev; + + if (!solo_dev) + return; + + pdev = solo_dev->pdev; + + /* If we never initialized the PCI device, then nothing else + * below here needs cleanup */ + if (!pdev) { + kfree(solo_dev); + return; + } + + /* Bring down the sub-devices first */ + solo_g723_exit(solo_dev); + solo_enc_v4l2_exit(solo_dev); + solo_enc_exit(solo_dev); + solo_v4l2_exit(solo_dev); + solo_disp_exit(solo_dev); + solo_gpio_exit(solo_dev); + solo_p2m_exit(solo_dev); + solo_i2c_exit(solo_dev); + + /* Now cleanup the PCI device */ + if (solo_dev->reg_base) { + solo_irq_off(solo_dev, ~0); + pci_iounmap(pdev, solo_dev->reg_base); + free_irq(pdev->irq, solo_dev); + } + + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + + kfree(solo_dev); +} + +static int __devinit solo_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct solo_dev *solo_dev; + int ret; + int sdram; + u8 chip_id; + u32 reg; + + solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL); + if (solo_dev == NULL) + return -ENOMEM; + + solo_dev->pdev = pdev; + spin_lock_init(&solo_dev->reg_io_lock); + pci_set_drvdata(pdev, solo_dev); + + ret = pci_enable_device(pdev); + if (ret) + goto fail_probe; + + pci_set_master(pdev); + + ret = pci_request_regions(pdev, SOLO6X10_NAME); + if (ret) + goto fail_probe; + + solo_dev->reg_base = pci_ioremap_bar(pdev, 0); + if (solo_dev->reg_base == NULL) { + ret = -ENOMEM; + goto fail_probe; + } + + chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) & + SOLO_CHIP_ID_MASK; + switch (chip_id) { + case 7: + solo_dev->nr_chans = 16; + solo_dev->nr_ext = 5; + break; + case 6: + solo_dev->nr_chans = 8; + solo_dev->nr_ext = 2; + break; + default: + dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, " + "defaulting to 4 channels\n", + chip_id); + case 5: + solo_dev->nr_chans = 4; + solo_dev->nr_ext = 1; + } + + solo_dev->flags = id->driver_data; + + /* Disable all interrupts to start */ + solo_irq_off(solo_dev, ~0); + + reg = SOLO_SYS_CFG_SDRAM64BIT; + /* Initial global settings */ + if (!(solo_dev->flags & FLAGS_6110)) + reg |= SOLO6010_SYS_CFG_INPUTDIV(25) | + SOLO6010_SYS_CFG_FEEDBACKDIV((SOLO_CLOCK_MHZ * 2) - 2) | + SOLO6010_SYS_CFG_OUTDIV(3); + solo_reg_write(solo_dev, SOLO_SYS_CFG, reg); + + if (solo_dev->flags & FLAGS_6110) { + u32 sys_clock_MHz = SOLO_CLOCK_MHZ; + u32 pll_DIVQ; + u32 pll_DIVF; + + if (sys_clock_MHz < 125) { + pll_DIVQ = 3; + pll_DIVF = (sys_clock_MHz * 4) / 3; + } else { + pll_DIVQ = 2; + pll_DIVF = (sys_clock_MHz * 2) / 3; + } + + solo_reg_write(solo_dev, SOLO6110_PLL_CONFIG, + SOLO6110_PLL_RANGE_5_10MHZ | + SOLO6110_PLL_DIVR(9) | + SOLO6110_PLL_DIVQ_EXP(pll_DIVQ) | + SOLO6110_PLL_DIVF(pll_DIVF) | SOLO6110_PLL_FSEN); + mdelay(1); // PLL Locking time (1ms) + + solo_reg_write(solo_dev, SOLO_DMA_CTRL1, 3 << 8); /* ? */ + } else + solo_reg_write(solo_dev, SOLO_DMA_CTRL1, 1 << 8); /* ? */ + + solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM, SOLO_CLOCK_MHZ - 1); + + /* PLL locking time of 1ms */ + mdelay(1); + + ret = request_irq(pdev->irq, solo_isr, IRQF_SHARED, SOLO6X10_NAME, + solo_dev); + if (ret) + goto fail_probe; + + /* Handle this from the start */ + solo_irq_on(solo_dev, SOLO_IRQ_PCI_ERR); + + ret = solo_i2c_init(solo_dev); + if (ret) + goto fail_probe; + + /* Setup the DMA engine */ + sdram = (solo_dev->nr_chans >= 8) ? 2 : 1; + solo_reg_write(solo_dev, SOLO_DMA_CTRL, + SOLO_DMA_CTRL_REFRESH_CYCLE(1) | + SOLO_DMA_CTRL_SDRAM_SIZE(sdram) | + SOLO_DMA_CTRL_SDRAM_CLK_INVERT | + SOLO_DMA_CTRL_READ_CLK_SELECT | + SOLO_DMA_CTRL_LATENCY(1)); + + ret = solo_p2m_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_disp_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_gpio_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_tw28_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_v4l2_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_enc_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_enc_v4l2_init(solo_dev); + if (ret) + goto fail_probe; + + ret = solo_g723_init(solo_dev); + if (ret) + goto fail_probe; + + return 0; + +fail_probe: + free_solo_dev(solo_dev); + return ret; +} + +static void __devexit solo_pci_remove(struct pci_dev *pdev) +{ + struct solo_dev *solo_dev = pci_get_drvdata(pdev); + + free_solo_dev(solo_dev); +} + +static struct pci_device_id solo_id_table[] = { + /* 6010 based cards */ + {PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6010)}, + {PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6110), + .driver_data = FLAGS_6110}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_4)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_9)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_16)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_SOLO_4)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_SOLO_9)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_SOLO_16)}, + /* 6110 based cards */ + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_6110_4)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_6110_8)}, + {PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_6110_16)}, + {0,} +}; + +MODULE_DEVICE_TABLE(pci, solo_id_table); + +static struct pci_driver solo_pci_driver = { + .name = SOLO6X10_NAME, + .id_table = solo_id_table, + .probe = solo_pci_probe, + .remove = solo_pci_remove, +}; + +static int __init solo_module_init(void) +{ + return pci_register_driver(&solo_pci_driver); +} + +static void __exit solo_module_exit(void) +{ + pci_unregister_driver(&solo_pci_driver); +} + +module_init(solo_module_init); +module_exit(solo_module_exit); |